Condell Group, LLC: Sells skateboard ramps and grinding rails.
Hill Brothers Studios, Inc.: Offers video plans to help build a mini halfpipe.
RampHelp: Sells blueprint instructions to build ramps, as well as completed models.
RampSodia: Offering plans to build a variety of models.
SkateProducts: Grinding rail systems, kicker ramps, and ollie jumps for skateboarding, in-line skating and BMX.
Skatoramps: Sells step by step plans to build a variety of ramp models. [Best viewed in IE, may cause errors in other browsers.]
SteelSun, Inc.: Specializing in ramps, grind rails, fun boxes and quarter pipes.
Universal Industrial Products: Features pre-assembled skateboard ramps, grind rails, kits, ramp plans and videos, and related accessories.