Here is a project for the experienced builder. This halfpipe is 4 foot high by 31 feet long, by 8 feet wide. Note: The picture you see here shows a 16 foot wide version. These are BLUEPRINTS ONLY! THIS IS NOT A COMPLETE BUILT RAMP! Each blueprint comes on full 24" x 36" paper. Plans feature isometric view, side view, rear view, radius, plywood layout, and framing plan. They also have important detail information, general construction tips and material list. Price includes shipping and Handling (Priority Mail).