Watch this video to learn how to build a launch ramp. Step by step process to building you very own wooden launch ramp for skating or biking! Fast and economical way to have fun while skating! First make sure to draw a stencil to make cutting the wood easier. To save money you're going to want to get 2 cut-outs from each sheet of wood. You will need 7 or 8 two foot 2x4's to connect the outer shells. Next you put 3/8" sheet of plywood on top to finish you ramp! To make it even easier try getting your wood precut at Home Depot!