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Garage Mini RampI built an 8' wide, 3'10-1/2" Tall, x 19' Long miniramp in the garage
for my son and I to skate on. I did this on a low-budget since I wasn't even
sure I could fit something in therethat I would like. The side sheets and 1st layer were all made from 7/16" OSB. Each sheet was approx 11.00 at Lowes and it took 9 Sheets. The top layer consisted of 15/32" B\C Plywood 5 sheets at $17.00. The transition radius is 90" which allows for a full 8' sheet to be utilized on the transition. The cross braces supporting the transition and joining the side sheets together were a minimum 2x6 every other brace. The drawing shows 2x4's but I used what I had as scrap and most of it was pressure treated 2x6's or bigger. For the flatbottom I used scrap pieces of 2X . I assumed I could get away with this since the floor was concrete and should have been flat. I WAS WRONG. I should have checked the floor for flatness and shimmed where needed before putting the layers on or used 2x4's up on edge. The coping was made from some discarded chain link fence posts. These are the equivalent of 1-1/2" schedule 40 pipe. The fencepost are galvanized so no painting is required. Some people do not like the way the galvanized feels when it grinds so you may want to try something else. The coping was attached by welding some 2" angle along one edge of the pipe. These angles were 2" long with holes in them to allow lag screws to be installed to the top 2x on the transition. Here are some actual pictures. A video of my son skating it can be seen here. (Windows Media)
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