| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor structure having a drain function at a low cost so that execution can be made easily. SOLUTION: In the floor structure where joists 10 are installed while they cross each other on sleepers 30 that are installed in parallel, and a floor panel 5 is installed on the joists 10, a sleeper body 31 that is a part for supporting the load of the joists 10 and the floor panel 5 is made of a metal, and a sleeper drainage canal 33 that is a part for receiving drain is made of a synthetic resin.
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