| 摘要 |
PROBLEM TO BE SOLVED: To provide plywood flooring constituted to improve rigidity at the adjoining part of the plywood flooring and to allow smooth and satisfactory fitting between a tongue and a groove in constructing the plywood flooring. SOLUTION: This plywood flooring has a body part 10, a tongue part 11 formed projecting at least at one side face 101 of the body part 10, and a groove 12 formed at the other side face 102 to fit the tongue part 11 of the other plywood flooring 1. A groove part 13 for driving a reinforcing implement, recessed toward the body part 10 is formed at a step part between the tongue part 11 and the side face 101 of the body part 10.
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