kevens right. i built a 7 footer at my house when i was 14 and it was pretty easy... very time consuming but not actually that difficuly construction. go to your local skate park and just look at what they did... build a frame, to get the curves right use a string and a pencil to make sure they're uniform and shit. and dont listen to whatever fucker told you to put vert in a 6 foot ramp... whether you're skateboarding or rolling you'll regret it... i can air out a solid 6 feet out of mine on skates and its definitly not vertical. i found coping to be tha hardest part... mine kind of sucks. also, drop the cash to get good wood. skatelite, or something similar. the other shit will wear out, so unless you just want a temp halfpipe, you're going to need to drop some cash... i tried to just use plywood with some varnish shit on mine... worked excelllent for 2 or 3 summers, but last summer i got like 14 1/2 inch long splinters in one hand and decided it was no longer safe... heh. if you're going to go the cheap route make sure you tarp the ramp between use... keep it dry as fuck and you should be aiiiight. i think im going to burn mine this summer if anyone wants to witness a sad/spectacular bonfire