Log houses and log house component kits

Abstract

To provide a log house and a member kit for the log house which are easier to handle than logs. [Solution] The device comprises a peripheral portion having a plurality of long first frame materials arranged at the bottom, and an outer wall portion having a plurality of second frame materials stacked on top of the first frame materials, the first frame material having a flat bottom surface, a convex rib formed on the top surface, and a first notch portion which is a notch that allows the first frame materials to intersect and fit together, the peripheral portion being formed by fitting into the first notch portion of the other first frame material, the second frame material having three or more plate members stacked in the plate thickness direction, and a second notch portion which is a notch that allows the second frame materials to intersect and fit together, the second frame material having one or more plate members sandwiched between the two outermost plate members arranged offset in the plate width direction, so that a recessed groove of a certain depth is formed in the longitudinal direction on the bottom surface of the second frame material, and a convex rib is formed in the longitudinal direction on the top surface of the second frame material.

Description

[Technical Field]

[0001] The present invention relates to a log house and a component kit for a log house. [Background technology]

[0002] For example, a log house constructed by stacking logs such as logs has been disclosed (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-044898 Summary of the Invention [Problem to be solved by the invention]

[0004] In the construction method of building a log house by stacking logs horizontally (known as log construction), the logs used are long and heavy. Therefore, when building a log house, the logs must be hoisted using a crane or similar device, making it difficult for individuals to handle them. Furthermore, to improve airtightness, the logs must be grooved on the surfaces that come into contact with other logs, which requires time and effort, resulting in costs. Furthermore, such logs can shrink and crack over time.

[0005] Therefore, an object of the present invention is to provide a log house and a log house component kit that can be assembled more easily than when assembled using logs. [Means for solving the problem]

[0006] A log house according to one aspect of the present invention is a log house made by stacking a plurality of long wooden plate members in the height direction, and comprises a peripheral portion having a plurality of long first frame members arranged at the bottom of one side of a log wall, and an outer wall portion having a plurality of second frame members stacked on top of the first frame members, the first frame members having a flat bottom surface, a convex strip formed on the top surface, and first notch portions which are notches that allow the first frame members to intersect and fit together, the peripheral portion being formed by one of the first frame members fitting into the first notch portion of the other first frame member, the second frame members being long members and comprising three or more plate members stacked in the plate thickness direction and a groove formed in the plate members. and second notch portions which are notches that allow the second frame materials to intersect and fit together, and the second frame material is formed such that one or more second plate members sandwiched between the two outermost first plate members among the three or more plate members are arranged offset in the plate width direction, so that a recessed groove of a certain depth is formed in the longitudinal direction on the bottom surface of the second frame material and a convex rib is formed in the longitudinal direction on the top surface of the second frame material, and among the multiple second frame materials, the concave groove of the lowest second frame member in the outer wall portion is fitted into the convex rib of the first frame member, and the other second frame materials are stacked in the height direction by fitting the convex rib of the lower second frame member into the concave groove of the upper second frame member.

[0007] A log house component kit according to one embodiment of the present invention comprises a plurality of long first frame members to be placed at the bottom of one side of a log wall, and a plurality of second frame members to form the outer wall portion of the log wall, wherein the first frame members have a flat bottom surface, a convex ridge formed on the top surface, and first cutout portions that are notches that allow the first frame members to intersect and fit together, and the first frame members can be fitted together using the first cutout portions to form a frame-shaped peripheral portion, and the second frame members are long members that can be stacked on top of the first frame members, and have three or more plate members that are stacked in the plate thickness direction, and second cutout portions that are formed in the plate members and are notches that allow the second frame members to intersect and fit together, and The second frame materials are configured such that, when the second frame materials are fitted together via the second cutout portions, one or more second plate members sandwiched between the two outermost first plate members among the three or more plate members are positioned offset in the plate width direction, a recessed groove of a certain depth is formed in the longitudinal direction on the bottom surface of the second frame material, and a convex streak is formed in the longitudinal direction on the top surface of the second frame material, and among the multiple second frame materials, the recessed groove of the lowest second frame member in the outer wall portion can be fitted into the convex streak of the first frame material, and the other second frame materials can be stacked in the height direction by fitting the convex streak of the lower second frame member into the recessed groove of the upper second frame member. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a log house and a log house component kit that can be assembled more easily than when assembled using logs. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing an example of groove processing applied to a normal log material. [Figure 2] 1 is a diagram showing an example of a structural material 1 according to an embodiment of the present invention. [Figure 3A] FIG. 1 is a view of the structural material 1 as seen from the short side. [Figure 3B]10 is a diagram for explaining the difference in the depth of the notches provided in the plate members that make up the structural material 1. FIG. [Figure 4A] 1A to 1C are diagrams showing examples of variations of the structural material 1. [Figure 4B] 1A to 1C are diagrams showing examples of variations of the structural material 1. [Figure 5] FIG. 2 is a diagram showing an example of a state in which structural materials 1 are piled up. [Figure 6A] FIG. 10 is a diagram showing an example of a plate member cut out from plywood. [Figure 6B] 10A and 10B are diagrams showing the plate member being extended in the longitudinal direction. [Figure 6C] 10A and 10B are diagrams showing variations in the shape of a joint M1. [Figure 7] 1 is a diagram showing an example of a member used in a log house 100 according to an embodiment of the present invention. [Figure 8A] 1A to 1C are diagrams showing examples of various plate members used in a log wall 200. [Figure 8B] FIG. 10 is a diagram showing an example of a combination of plate members. [Figure 9] 1 is a flowchart showing the flow of a method for building a log house according to one embodiment of the present invention. [Figure 10] 10 is a flowchart showing an example of the perimeter 300 of a log house 100. [Figure 11] FIG. 2 is a diagram showing an example of components constituting a log wall 200. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the accompanying drawings, in which the same reference numerals denote the same or similar components.

[0011] A log house is a wooden house or shed with an architectural structure in which log walls are made up of piles of logs, and these log walls act as pillars and walls. The construction method for building such log houses is called log construction.

[0012] Log construction is a method of building a log house in which logs or other timber are grooved beforehand, then laid horizontally and stacked at right angles to form logs. Figure 1 shows an example of groove processing applied to ordinary logs. Figure 1 shows a view of the log T1 from the end of the short side. As shown by the shaded area in timber T1, it is usually necessary to apply groove processing to the logs. In addition, notches (hereinafter referred to as "notches") are made in the logs where the logs intersect at right angles.

[0013] Here, the structural material in one embodiment of the present invention is not made from a single log, but is made by combining multiple components (hereinafter referred to as "board components") cut from plywood, and can be used, for example, as log material.

[0014] The plate members may be cut out from plywood using an automatic machine tool such as a CNC (computerized numerical control) router based on dimensional data for each plate member. Plywood is specified in the Japanese Agricultural Standards (JAS). In the following, as an example, a piece of plywood measuring 910 mm in width and 1820 mm in length will be used. The dimensional data is data for recognizing the dimensions of the material to be cut out by a CNC router or the like, and may be line data (vector data) created using CAD (Computer Aided Design) software.

[0015] The plate material can be cut out quickly and in large quantities using a CNC router. The length and weight of each piece make it easy to carry and handle by an individual.

[0016] The plate member is not limited to one cut out from plywood, but may be one cut out from, for example, solid wood, laminated veneer lumber, or the like.

[0017] Figure 2 is a perspective view of a structural material 1 according to one embodiment of the present invention. The structural material 1 is formed, for example, by stacking and joining a plurality of plate members cut out from plywood in the thickness direction. In the case of Figure 2, the structural material is formed by overlapping three plate members (plate member 1a, plate member 1b, and plate member 1c).

[0018] It should be noted that the joining of plate members is assumed to be performed, for example, by fixing them with nails, screws, etc. that penetrate each plate member, but is not limited to this and also includes, for example, fixing overlapping surfaces of plate members together with adhesive.

[0019] Furthermore, notches N10 are provided in the structural material 1 so that structural materials can intersect and fit together at right angles. This allows other structural materials to fit together at right angles to the structural material 1, making it possible to form the periphery (peripheral portion) of a log house, for example.

[0020] FIG. 3A is a view of the structural material 1 as seen from the short side. As shown in FIG. 3A, in the structural material 1, the intermediate plate member 1b is offset by a predetermined difference in the plate width direction. The offset refers to a difference (deviation, relative position, etc.) from a reference position. Note that this difference is constant along the longitudinal direction of the structural material 1.

[0021] In this way, the structural material 1 with the intermediate plate member 1b offset forms a ridge L10 along the longitudinal direction of the structural material 1, and naturally forms a groove L11 on the opposite side of the ridge. This allows the ridge L10 of the structural material 1 to fit into the groove L11 of another structural material 2 and be stacked vertically, forming, for example, the log wall of a log house. By stacking the structural materials 1 with the ridge L10 fitting into the groove L11 of the structural material 2, a sealed log wall can be formed. This eliminates the need to provide the logs with grooves to ensure the sealedness of the log wall, as was previously done.

[0022] 3B is a diagram illustrating the difference in the depth of the notch provided in each plate member constituting the structural material 1. The notch depth D2 of the offset plate member 1b is deeper than the notch depth D1 of the plate members 1a and 1c located on the outer layers of the structural material 1 by the amount of the offset. As a result, when the plate members 1a, 1b, and 1c are stacked to form the structural material 1, the notch surface can be flattened at the notch N10 of the structural material 1.

[0023] Here, the structural material 1 has been described as being formed by stacking and joining three plate members, but the number of plate members constituting the structural material 1 is not limited to this. For example, as shown in FIG. 4A, the structural material may be formed by stacking four plate members. In this case, one or two of the two plate members in the middle layer sandwiched between the two outermost plate members may be offset so that at least one groove of a certain depth is formed along the longitudinal direction of the structural material. When five or more plate members are used, the variation shown in FIG. 4B is possible. Note that the plate widths and thicknesses of the stacked plate members do not necessarily have to be the same.

[0024] FIG. 5 is a diagram showing a state in which structural materials 1 are intersected and fitted with other structural materials and stacked vertically. As described above, a structural material according to one embodiment of the present invention can be constructed from multiple plate members cut from plywood. Furthermore, plate members are easy to carry due to their length and weight. Therefore, by using such plate members, even individuals can assemble the structural material. For example, structural materials are easier to handle than logs, such as logs for building log houses. Furthermore, the plate members that make up the structural material are made from plywood, which has little expansion and contraction. Therefore, cracks are less likely to occur over time than, for example, logs made from a single log.

[0025] Next, a log house according to one embodiment of the present invention will be described. The log house has log walls constructed using board members cut out from plywood.

[0026] 6A is a diagram showing an example of a board member cut out from plywood. The board members are laid on their sides and stacked vertically, crossing each other, to form a log wall. The board members are provided with notches N20 for intersecting and fitting with other board members (board members A and C). Furthermore, the board members may be provided with joints M1 at the ends of the short sides for fitting with other board members in the longitudinal direction (board members A, B, and C).

[0027] Fig. 6B is a diagram showing plate members being fitted together and extended in the longitudinal direction by a joint M1. In Fig. 6B, plate members A and C are fitted together by a joint M1 and extended in the longitudinal direction. Furthermore, if an intermediate member such as plate member B is provided, further extension in the longitudinal direction is possible.

[0028] 6C is a diagram showing variations in the shape of the joint M1. The joint M1 is not limited to the shape shown in FIG. 6B, and may have other shapes, such as a joint shape (for example, a metal ring joint) that is provided on the plate members C and G shown in FIG. 6C.

[0029] This allows the board members to be extended in the longitudinal direction, and board members can be prepared that are not restricted by the dimensions of plywood, making it possible to assemble log houses with various side lengths.

[0030] A log wall is a structure that serves as the pillars and walls of a log house, and is made up of cross-shaped boards stacked vertically. A log wall consists of, for example, a bottom frame, a middle frame, and an upper frame.

[0031] The lower frame material, middle frame material, and upper member may be, for example, members formed by stacking multiple plate members in the thickness direction.

[0032] FIG. 7 is a diagram showing the shapes of each plate member constituting the lower frame member A, upper frame member B, and middle frame member C that make up the log wall 200 of the log house 100. The lower frame member A is an example of a "first frame member." The middle frame member C is an example of a "second frame member." The upper frame member B is an example of a "third frame member."

[0033] 7, the bottom frame A, top frame B, and middle frame C are shown as three stacked plate members, but this is not limiting. That is, the log wall may be constructed by stacking different numbers of plate members as needed.

[0034] The lower frame member A is a long member that forms the lowest part of one side of the log wall 200. The lower frame member A is a member made up of, for example, plate members a, b, and c. In the lower frame member A, plate member b, which is located in the middle layer, has a wider plate width W1 than the other plate members and is offset by the difference in plate width to form a convex rib L12. As a result, the underside of the lower frame member A is flat and has no recesses, ensuring the stability of the stacked log wall 200.

[0035] In the lower frame material A, the notch depth D3 of the offset plate member b is deeper than the notch depths of the outermost plate frame materials a and c by the amount of the offset. As a result, when the lower frame material A is formed by stacking plate members a, b, and c, the notch surface can be flattened at the notch N11 (first cutout portion) of the lower frame material A. In this way, the lower frame material A has a flat bottom surface, a convex ridge L12 formed on the upper surface, and a notch N11 that is a cutout that allows the lower frame materials A to intersect and fit together. When the lower frame material A is formed by stacking the bottom surfaces of plate members a, b, and c so that the bottom surface of the lower frame material A is flat, the bottom surfaces of the notches of plate members a, b, and c are aligned, and the notch N11, which is the first cutout portion, is formed on the surface where the convex ridge L12 is located.

[0036] The upper frame member B is a long member that forms the top of one side of the log wall 200. The upper frame member B is a member made up of, for example, plate members d, e, and f. In the upper frame member B, plate member e, which is located in the middle layer, has a plate width W2 that is narrower than the other plate members, and is offset by the difference in plate width to form a recessed groove L13. As a result, the top surface of the upper frame member B is flat and has no protrusions, making it possible to flatten the top surface of the log wall 200, which is formed at the top by the upper frame member B.

[0037] In the upper frame material B, the depth D4 of the notch of the offset plate member e is shallower than the depth of the notches of the outermost plate members d and f by the amount of the offset. As a result, when the upper frame material B is formed by stacking plate members d, e, and f, the notch surface can be flattened at notch N12 (third cutout portion) of the upper frame material B. When the upper frame material B is formed by stacking plate members d, e, and f, the bottom surface of the first notch and the bottom surface of the second notch of notch N12 are aligned, and notch N12, which is the third cutout portion, is formed on the surface (top surface) opposite to the side where groove L13 is located.

[0038] The inner frame member C is a member stacked between the lower frame member A and the upper frame member B on one side of the log wall 200. The configuration of the inner frame member C is similar to that of the structural member 1 shown in Figures 2 and 3. The multiple inner frame members C stacked on the lower frame member A are sometimes referred to as the exterior wall portion of the log house. The inner frame member C has a notch N13 (second notch portion) that allows the inner frame members C to intersect and fit together. The inner frame member C shown in Figure 7 is a long member and includes three or more plate members g, h, and i stacked in the thickness direction. For example, plate member g corresponds to plate member 1a, plate member h corresponds to plate member 1b, and plate member i corresponds to plate member 1c. If plate member g and plate member i are the first plate members and plate member h is the second plate member, the inner frame members C are stacked in the thickness direction with the second plate member shifted in the width direction relative to the first plate member. The first plate member has a first notch, which is a notch of a predetermined depth (see FIG. 3B). The second plate member has a second notch, which is a notch that is deeper than the first notch by an amount that is offset in the plate width direction relative to the first plate member (see FIG. 3B). The second cutout portion is formed by the first notch and the second notch. When the first plate member and the second plate member are stacked in the plate thickness direction, the bottom surface of the first notch and the bottom surface of the second notch are aligned, thereby forming a second cutout portion on the surface opposite the side where the recessed groove is located.

[0039] As an example, each of the first notch, second notch, and third notch is a rectangular recess formed to a predetermined depth from the first surface side toward the second surface on the opposite side of the first surface, with the bottom surface of the notch extending horizontally or approximately horizontally along the longitudinal direction of the frame material. The first surface of the middle frame material C is the surface opposite to the side where the groove is located. The first surface of the lower frame material A is the surface (upper surface) opposite to the surface (lower surface) that contacts the ground or foundation. The first surface of the upper frame material B is the surface (upper surface) opposite to the side where the groove is located. The depths and widths (longitudinal and lateral directions) of the first notch, second notch, and third notch are, for example, the same or approximately the same.

[0040] The various plate members used in the log wall 200 are cut out by a CNC router along lines drawn on a piece of plywood, as shown in Fig. 8A. In Fig. 8A, plate members A to E are cut out as an example.

[0041] Figure 8B is a top view of a log wall when a log house is constructed by combining cut-out plate members A to O. The parts joined by joints are indicated by J in Figure 8B. The stacked plate members may also be joined by tools P1 such as screws or nails.

[0042] Next, a method for constructing a log house according to one embodiment of the present invention (hereinafter referred to as "this construction method") will be described.

[0043] This construction method is a way to build a log house using multiple board members cut from plywood.

[0044] The flow of this construction method will be explained below with reference to the drawings. This construction method includes the steps of constructing a log wall by combining board members cut from plywood (steps S10 to S13) and the step of fixing the board members in the log wall (step S14).

[0045] FIG. 9 is a flowchart for explaining the flow of this construction method.

[0046] First, a plurality of plate members cut from plywood are stacked to form a bottom frame member A, a top frame member B, and a middle frame member C shown in Fig. 7 based on the dimensions of the log house (step S10). At this time, for example, as shown in Fig. 6B, the plate members may be extended in the longitudinal direction by joints.

[0047] Next, as shown in Figure 10, a plurality of lower frame materials A are fitted into notches N11 and crossed (step S11), thereby forming a frame-shaped periphery 300 of the log house.

[0048] Next, the inner frame material C is stacked by fitting the groove L14 of the inner frame material C into the protruding strip L12 of the bottom frame material A (step S12). Similarly, the inner frame material C is stacked by fitting the groove L14 of another inner frame material into the protruding strip L15 of the inner frame material C. When inner frame materials C intersect, the other inner frame material is fitted into the notch N13 (second cutout portion).

[0049] Next, as shown in Fig. 11, the convex strips L15 of the middle frame material C that have been stacked to a predetermined height are fitted into the concave grooves L13 of the upper frame material (step S13), thereby forming the log wall 200 (Fig. 7).

[0050] Next, the stacked plate members are joined with screws, nails, etc. (Step S14). The joining of the plate members may be performed in Step S10. This makes it possible to prepare the plate members in advance in the form of logs.

[0051] This construction method allows a log house to be constructed by assembling multiple board members cut from plywood. In this construction method, each board member is the same size and weight as when cut from plywood. Therefore, individuals can carry them to the construction site and assemble the log house relatively easily, thereby reducing the cost of building a log house. Furthermore, this construction method involves stacking multiple board members and joining the stacked board members as needed. Therefore, there is no need to prepare the structural materials according to one embodiment of the present invention in advance. In this way, by preparing board members that can be handled by individuals, this construction method allows a log house with airtight log walls to be constructed even without structural materials.

[0052] As mentioned above, the present invention includes the use of wood materials used for plywood, scrap wood, etc. Therefore, the present invention can contribute to, for example, Goal 15 of the Sustainable Development Goals (SDGs), "Protect and sustainably manage land."

[0053] Thus, in this embodiment, compared to conventional structures using logs, it is possible to provide a log house and a component kit for a log house that can be easily assembled by an individual without using heavy machinery, etc. The component kit for a log house may have, for example, a bottom frame material A and a middle frame material C, or may further have an upper frame material B, or may further have a joint M1, or may be any of the bottom frame material A, the upper frame material B, and the middle frame material C.

[0054] Furthermore, the frame material is constructed by stacking three or more plate members, resulting in a lightweight structure. This allows for manual transport and construction, and assembly can be performed without the use of heavy machinery such as cranes. In this embodiment, the first frame material is provided with cutouts and ridges, while the second frame material is provided with "ridges and grooves" and "cutouts," allowing for mutual positioning and fastening simultaneously by simply fitting them together. This interlocking structure eliminates the need for precise positioning adjustments or fastening work using tools during construction, allowing for easy assembly. The second frame material is structured to be stacked vertically using the grooves and ridges, allowing a log wall to be formed simply by stacking them from the bottom up. This modular stacking structure allows for repetitive and stable assembly without requiring special skills or adjustments from the builder.

[0055] In the log house and the log house component kit of this embodiment, the bottom of the log wall has a "bottom frame" (first frame), which is a structural material with a wider board width than the outer layer boards, and a convex strip with a height equal to the difference between the board widths. The bottom surface of this bottom frame is flat and has no concave grooves.

[0056] In this way, the underside of the bottom frame member that contacts the ground or foundation is flat, and the offset plate members do not float in the air. Therefore, the convex ribs can be maintained without joining the stacked plate members. In one example of this embodiment, plate members prepared separately are thrust into the bottom frame member formed as described above and assembled. Therefore, the stacking state of each plate member of the inner frame member C is stable without the need to join the plate members together, and it is possible to form a structural member of the inner frame member C with offset plate members in the middle layer. Furthermore, initial positioning and leveling of the entire log wall are easy, reducing construction errors. Furthermore, with the log house and structural materials for building log houses of this embodiment, by thrusting plate members into the underlying structural members and assembling them while adjusting for dimensional errors, airtight and sealed log walls can be formed without groove processing.

[0057] The above-described embodiment is an example for explaining the present invention, and is not intended to limit the present invention to only the embodiment. Furthermore, the present invention can be modified in various ways without departing from the spirit of the present invention. Furthermore, a person skilled in the art can adopt an embodiment in which each element described below is replaced with an equivalent, and such an embodiment is also within the scope of the present invention. [Explanation of symbols]

[0058] T1...wood, 1,2...structural materials, 1a,1b,1c,A,B,C,D,E,E,F,G,H,I...board members, L10,L12,L15...ridges, L11,L13,L14...grooves, 100...log house, 200...log wall, periphery of log house...300, A...bottom frame material, B...top frame material, C...middle frame material, N10,N11,N12,N13,N20...notch, D1,D2,D3,D4...notch depth, W1,W2...board width, M1...joint, P1...fixture

Claims

1. A log house in which multiple long wooden board members are stacked in the height direction, a peripheral portion having a plurality of long first frame members arranged at the bottom of one side of the log wall; an outer wall portion having a plurality of second frame members stacked on the first frame members; The first frame member has a flat bottom surface, a convex ridge formed on an upper surface, and a first notch portion that is a notch that allows the first frame members to intersect and fit together, the peripheral edge portion is formed by fitting the first frame members together via the first notch portions, The first frame member is a long member and has three or more plate members stacked in the plate thickness direction, Among the three or more plate members of the first frame member, one or more plate members sandwiched between two outermost plate members have a plate width wider than that of the outermost plate member, thereby forming the convex strip; The second frame material is Three or more plate members that are long members and are stacked in the plate thickness direction; a second notch portion formed in the plate member, the second frame members intersecting and being fittable with each other; The second frame member is configured such that one or more second plate members sandwiched between the two outermost first plate members among the three or more plate members are arranged shifted in the plate width direction, so that a recessed groove of a certain depth is formed in the longitudinal direction on the bottom surface of the second frame member, and a protruding ridge is formed in the longitudinal direction on the top surface of the second frame member, Among the plurality of second frame materials, the second frame material at the bottom of the outer wall portion has the concave groove fitted into the convex strip of the first frame material, and the other second frame materials are stacked in the height direction by having the convex strip of the lower second frame material fitted into the concave groove of the upper second frame material. Log house.

2. the second plate member is stacked in the plate thickness direction while being shifted in the plate width direction relative to the first plate member, the first plate member has a first notch that is a notch of a predetermined depth, the second plate member has a second notch that is deeper than the first notch by an amount shifted in the plate width direction relative to the first plate member, the second cutout portion is formed by the first notch and the second notch, When the first plate member and the second plate member are stacked in the plate thickness direction, a bottom surface of the first notch and a bottom surface of the second notch are aligned, thereby forming the second cutout portion on the surface opposite to the side where the recessed groove is located. The log house according to claim 1.

3. A log house component kit for a log house in which a plurality of long wooden board members are stacked in the height direction, a plurality of long first frame members arranged at the bottom of one side of the log wall; a plurality of second frame members for constituting the outer wall portion of the log wall; The first frame member has a flat bottom surface, a convex ridge formed on an upper surface, and a first notch portion that is a notch that allows the first frame members to intersect and fit together, The first frame members are fitted together by the first notch portions, thereby forming a frame-shaped peripheral portion, The first frame member is a long member and has three or more plate members stacked in the plate thickness direction, Among the three or more plate members of the first frame member, one or more plate members sandwiched between two outermost plate members have a plate width wider than that of the outermost plate member, thereby forming the convex strip; The second frame material is Three or more plate members that are long members that can be stacked on the first frame material and are stacked in the plate thickness direction; a second notch portion formed in the plate member, the second frame members intersecting and being fittable with each other; The second frame members are configured such that, when the second frame members are fitted together by the second cutout portions, one or more second plate members, which are one or more plate members sandwiched between the two outermost first plate members among the three or more plate members, are positioned with a shift in the plate width direction, and a recessed groove of a certain depth is formed in the longitudinal direction on the bottom surface of the second frame member, and a protruding rib is formed in the longitudinal direction on the top surface of the second frame member, Among the plurality of second frame materials, the second frame material at the bottom of the outer wall portion has the concave groove that can be fitted into the convex rib of the first frame material, and the other second frame materials can be stacked in the height direction by fitting the convex rib of the lower second frame material into the concave groove of the upper second frame material. Log house component kit.

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