Half-pipes are structures used for extreme sports such as skateboarding, snowboarding, rollerblading and freestyle biking. A typical half-pipe consists of two quarter-pipes which are basically concave ramps. Quarter-pipes have three parts: vertical section, transition and flat section. Smaller, homemade skateboard ramps usually don't have those three sections so distinctively designed. No matter whether you want a vertical part or just a mild slope blending in the transition part, building your own quarter-pipe is a relatively easy and very rewarding task.
- Skill level:
- Moderately Challenging
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Things you need
- Measuring tape
- Wood panel
- Circular saw
- 3/8 and 3/4 plywood
- 2x4 and 2x6
- Metal pipe
- Power drill
Make a detailed plan for the quarter-pipe and purchase the needed materials. When making plans, decide the final design of the ramp and include precise dimensions.
Draw an outline of the side for the ramp on a thick wood panel. You can use 3/4 plywood for this part of the ramp. Note that he ramp side will be roughly the shape of a 90 degree angle triangle.
Cut the side of the ramp following the outline. Use a circular saw and cut two of these sides, making sure they are identical.
Connect the two sides with 10 or more 2x4s at their full length. These will be the ribs of the ramp and a vital part of the structure. Do not be afraid to add more ribs than recommended. The length of the 2x4 will be the width of the quarter-pipe, so plan accordingly.
Make a simple platform from 2x6 boards and attach it to the top part of the ramp. Use a design of a shallow box as a model for the platform.
Place the platform on two 4x4 posts, each on one side. Attach the posts with screws and tighten them firmly. This will make the platform secure and stable. Now you have the basic frame of the skateboard quarter-pipe.
Attach a layer of 3/8 plywood flat down on the edges of the sides, to form a smooth curved surface. Use two layers of 3/8 rather than one layer of 3/4 because that kind of plywood will not bend enough. Make sure that the surfaces of the platform and the ramp meet in one point.
Mount the 1 1/2-inch metal pipe where the edges of the platform and the rap meet. Secure the pipe with nails and make sure that it is level with both surfaces. This edge of the skateboard ramp is likely to be the most worn and used place on the ramp, so it has to be the most durable as well. Also, there has to be a strong and smooth edge at the top of the quarter-pipe.
Prepare the skateboard ramp for painting. Clean it thoroughly and then polish it with fine sandpaper.
Paint your quarter-pipe with thick urethane or polyurethane paint. Use either a roller and a bucket or a spray painter. Either way, watch for drops and remove them the second they appear. The surface needs to be as smooth and shiny as possible.
Tips and warnings
- Working with power tools requires a great deal of caution and responsibility.
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