Bryan from right here in S&A’s back yard sent in some pictures of a ramp he built in his garage.
Longtime reader here, just got back from Afghan and finished up the last corner of my garage ramp. Two main sides are 6ft radius and 4ft and 7.5 ft tall, house door side is 4.5ft radius and 2ft tall and garage door side is 3ft radius with 6.5ft tall near-vert wall. The newest corner has a 1ft tall roll-up to 4ft radius quarter to wall ride. The corner at the base of the 7.5ft tall section is a compound curve-based hip.
Looks pretty excellent. What are you using on that top layer?