To make it possible to use an apparatus mounting board for a long period of time, by providing a scale comprising a grooved part along a mounting surface on which an electrical apparatus is to be mounted.
An apparatus mounting board 10 is formed in a rectangular plate of a wooden material. Its surface forms a mounting surface 1 on which an electrical apparatus is mounted with wood screws. The mounting surface 1 is porous in which a scale 1a is provided in a grid pattern in plan view so as to form guidelines for mounting an electrical apparatus. The scale 1a comprises a grooved part 1b which has the cross section of a semicircular shape and whose inward surface is formed into a curved suffice. This structure prevents the scale 1a comprising the grooved part 1b from becoming hard to be seen because of changes with time and from coming of the surface. Thus, the board can be used for a long period of time.
TSUJIMOTO KATSUHISA
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