I don't want to put anyones stuff down. This was like 4-5 years in the making. We started off small with pvc rails and worked our way up. First year we had a double 4inch pvc 20 ft rail that was like 4 feet off the ground, then we moved up to a single 4 inch 30 ft rail that was about 5 feet off the ground, that rail was hard to complete without a good amount of speed and a picnic table and a 20 foot rainbow rail. Then for a year there we skipped the backyard park and put our rails up at the local hill. The next year which is shown on the site of last year we built a 20 ft flatbar, 10/15 flat down flatbar and a 8/6/8 flat down flat flat bar for the local park and we had all the rest of what you see. This year you can see what is new and my friend is building a lot of stuff for the park at the local hill. We are trying to take up a whole run, last year they gave us maybe 600 feet length to work with so we have enough for the rails, small wall ride and a real small jump... The year we didnt do anything for the backyard park we built a 55 foot gap to land on that hill. Snowmobile tow in at about 40 mph. Takeoff was about 15-20 ft long, 8 feet high, sessioned it once at night then the weather turned bad.
Sorry for the long post, but this is from years of building and learning. We are both in college now and we build some fun stuff.
If anyone wants to ride it this winter and you are in central ny, hit me up on AIM or something
Peace
Duane