Ok so i built this thing to bike on. It was a very steep ramp going up to a 2 foot high 2 foot wide platform about maybe 2 - 2.5 bike lengths long. They were just 4 2 x 6 on top of two boxs. The second box right before you drop off calapsed. the boards fell and i rode down. i was fine but it was a little wierd. I plain to fix it and make it better and longer. any suggestions would be good.