skateboard halfpipe part one diy backyard unfinished
part one unfinished ramp. i have dreamed since i was nine of having a halpipe in my backyard so…using piled up earth, concrete canvas and stokbord to produce a backyard halfpipe. choose any shape you want by digging out the earth, line the ditch with concrete canvas and then spray with water. in 24 hours it will go rock hard (but still with the ability to screw into it) then line with stokbord a…

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