How to Build a Skateboard Ramp (with Pictures) - wikiHow | Skateboard ramps, Skate ramp, Skatepark design
Skateboard Bowl Ramp – OC Ramps
Thrasher Presents: How to Build Skateboard Ramps, Halfpipes, Boxes, Bowls and More (Skate My Friend, Skate): Thatcher, Kevin: 9780965727143: Amazon.com: Books