The wood seat assembly consists of a three-quarter-inch by nine-inch seat board and a three-quarter-inch by seven-and-seven-eighths-inch front riser attached with one-quarter-20 by one-and-one-quarter-inch stepbolts with locknuts. A plywood deck bears on the lower framing, spaced with three-eighths-inch by one-inch members at a maximum of thirty-six inches on center. The assembly provides riser options with nine-and-five-eighths-inch and eleven-and-five-eighths-inch dimensions.
1 D3 1 D1 9 5/8" RISE 11 5/8" RISE 2 D1 B D1 A D1 3/4" x 9" SEAT BOARD 1/4-20 x 1 1/4" STEPBOLT W/LOCKNUT PLYWOOD DECK 3/8" x 1" (36" MAX O.C.) FRONT RISER 3/4" x 7 7/8" 1/4-20 x 1 1/4" STEPBOLT W/LOCKNUT c ) I 0 J T - E 5
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