My friend has a 3.5 foot mini-ramp I built with him with a five foot extension. We recently added a 4-foot vert wall. It's 1 foot of tranny with 3 feet of vert. It's really fun to skate, but turning on it is crazy! It reminds me of a pool or something. We wanna build a corner bowl section but aren't sure how to do this. Would I cut triangles out of wood or what? I should probably post some pics, maybe it will give a better idea of what i'm trying to do...

sounds like a nice ramp, did you guys seal the wood with anything?

to do bowls/corners you have to do a LOT more cutting and measuring... you basically make your 2x4s cut from bottom to top: smallest to largest.

so imagine these are horizontally placed:

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but first, you know how you make the slope on the mini? you need to make a few of those just for one side, if you want that bowl shape. you'll put them all together with 2x4s in the V shape, smallest on the bottom and going progressively bigger as you go up.

if you can find a pic, this will all come together.

check the photo journal of this guy, there's some useful info here

http://rampplans.org/ramps/Mark_Center/

GL, building bowl corners are hard if your not a great ramp builder.you have to cut your 2x4s and several angles and actually cut curves into the 2x4s to get the plywood to curve correctly, its a hit or miss kinda thing.research it alot because you dont want to go in and half ass it along, wood isnt so cheap