my drawing of a ramp me and my brother hope 2 build for the summer, it will be a halfpipe, each space = a foot, so it is 6ft high, middle section of 8 foot, the ramp will have a 6ft radius with a 4ft deck at both ends, each section is 1 peice of plywood, for example the face of the ramp will need 3 pieces of ply wood next to each other but with one support underneath