FLOOR MATERIAL

To provide floor material with a fitting shape to prevent gaps in a joint parts between the floor materials as well as to prevent fitting from detaching and to prevent creation of bulges and bumps, upon contraction due to humidity and temperature after installed through fitting.SOLUTION: Floor materials comprise fitting structures provided with: a linear fitting concave groove part 223 on an end of one of opposing generally rectangular plane members to each other, of which a rear surface side is removed; a first projected part 221 at a tip of an end of the other formed by obliquely removing a front surface; a linear fitting concave groove part 234 fitted into the linear fitting concave groove part 223 of which a front surface side of an end of the opposing other is removed; and a second projected part 231 on an inner surface of the fitting concave groove part 234 formed by obliquely removing a lower side in order to fit the first projected part 221 at the tip of the end of the other, wherein a substrate layer has a compression modulus of elasticity of 0.098 to 0.163 MPa measured in accordance with JIS K 7181, and a buffer layer has a compression modulus of elasticity of 0.015 to 0.030 MPa measured in accordance with JIS K 7181.SELECTED DRAWING: Figure 4 【課題】嵌合して敷設し湿度、温度の影響を受け、収縮した際に床材同士の目地部における隙間が目立ち難く、また嵌合が外れ難く突上げや段差の発生のし難い嵌合形状を有する床材を提供する。【解決手段】略矩形平面部材の相対する一方の端部に、裏面側が切除された線状の係合凹溝部２２３を備え、上記一方の端部の先端は表面側が斜めに切除された第１突起部２２１を備え、相対する他方の端部の表面側が切除された線状の係合凹溝部２２３と嵌合する線状の係合凹溝部２３４を備え、上記係合凹溝部２３４の内面に上記一方の端部の先端の第１突起部２２１と接合するように下側が斜めに切除された第２突起部２３１を備えてなる嵌合構造を有し、基材層のＪＩＳ Ｋ ７１８１に準拠して測定した圧縮弾性率を０．０９８〜０．１６３ＭＰａとし、緩衝層のＪＩＳ Ｋ ７１８１に準拠して測定した圧縮弾性率を０．０１５〜０．０３０ＭＰａとする床材である。【選択図】図４