| 摘要 |
A joint for joining one board to another board comprises a plurality of alternating top and bottom fingers. The top fingers each have a top surface and a sloped surface. The top surfaces of the top fingers are level and contiguous with the top surface of the board, and the sloped surfaces angle from the outer ends of the top fingers inward and downward to the bottom surface of the board. The bottom fingers each have a bottom surface and a sloped surface. The bottom surfaces of the bottom fingers are level and contiguous with the bottom surface of the board, and the sloped surfaces angle from the outer ends of the bottom fingers inward and upward to the top surface of the board. When two boards having such joints are joined, the top fingers of each board interlace and the bottom fingers of each board interlace.
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