4328 S 3RD AVE 2016-01-01 MF Import

� 1. To construct frame Use 2"x8" boards cut the appropriate len3th of ramp (or aail boards together for needed length). The Lrame should be 4 feet wide and not more than 30 feet long. Next, using 2"x4" boards, joists (support boards) should be nailed ia the frame, perpendicular t� the lengthwise baards, at 24" intervals. Pressure blocks (small wooden blocics used to reiaforce joints) ahould be eecurely w►iled to both the joist and the lengthwise board. The joists and pressure blocks should be flush vith ehe lengthwise board. Z. Leagthvise board should be supparted every 8 feet or less. 3. Use 4"x4" 1�6er to build support legs. Nail securely to lr.agthvise boards of ramp frama. 4. Wood supports ahould be held together crith crosa bracing in hoth directions. F.'hea lengthtrise boards are spliced for appropriate leagth of ramp, all splices should be on top of supports. 5. Deck 6. 7. Douglas fir plywood, grade A.C. or better should be used, A side up. Nail 3/4" plywood to ramp frame, exteading beyond lower end of frame to rest on sidevalk. Protective metal stripping should be used at end of ramp, using flat-head wood screws counter aunk into top of stripping. The deck should rest on the �oists, set dawn ben:een the lengthwise boards, leaving approximately 2" of the lengthsrise board above the deck, forming a safety curb. Deck is to be nailed with 8 pd. (pound) cemeat coated box nails or fasteaed with 1 1/2" 08 flat-head wod screws. A straight ramp requires a five foot square laading. When there is not room to make a straight ramp, it is required ehat a level landing of at least five foot square be iastalled at each tur.n and be the same construction as ramp. 2