This one required about 200ft of approach down the deck of the super pipe to hit it well. This wall is 12ft high on top of a 12ft tranny. This is the smallest you can build a wall that is close to vert. any smaller and you are dealing with a wack unridable tranny. you could lay a 6-8ft wall back about 30degrees off of vert on top of a matching tranny to cut the in run distance down signifacantly...but then you wont so much as have a wallride, really more like a wedgeride. Your best bet is to build a 4-6ft high wedge at about 50 degrees..others wise you wont be able to maintain the tranny, probably wont have enough snow to even build a tranny, and will be able to over come the friction of plywood (assumimg you aren't going to shell out several hundred bucks for VHMW or Sheet Metal). Wallrides aint cheap by any means!!!