Grade D is the lowest grade but the most cost effective. If you work hard and have all the materials, then it should be about 1, 2, or 3 days. Plywood bends easily so you just apply some force then screw it in. It's a good place to start​ before you jump into building. Last Updated: July 16, 2020 Finish the surface with a top layer like Skatelite to waterproof the ramp. Increase your ramp’s longevity by shielding it from the elements. What is your advice? Just keep in mind that pressure-treated wood will leave a nasty infection if you get a splinter. Free ramp plans for a 4 foot mini halfpipe, 8 foot vert halfpipe, 4 foot quarterpipe, grind box and funbox, instructions include step by step pictures and videos. Free Mini Ramp Plans. Alternatively, use Masonite and finish it with water-resistant paint. Having your own grind rail that you can pull out whenever you want is the best way to get better at balance and grinding. I was thinking of using marine plywood for the top layer. You use a metal tube for the coping. Finnish Birch is high quality plywood but is expensive and may be difficult to find. A big piece of advice is to get coarse drywall screws for indoor ramps and galvanized deck screws for outdoor ramps. We are located in Southern California with a … This one... DIY Skateboard Ramps. The height of this ramp is 3' 5", you can make it any height under that. You can easily use this quarter pipe ramp for bike tricks, scooters, or anything else. This halfpipe can be separated into three pieces so that it is possible to move. Masonite doesn’t age well so keep it covered and give it a dust off before use. Portable. There are many ramp builders that are more localized. Always back up any nails in the structure with a screw or two. Adding a layer of thin wax can make your ride on the ramp smoother, as well as adding a certain degree of cushioning in the probable event that you fall. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/aa\/Build-a-Skateboard-Ramp-Step-1-Version-2.jpg\/v4-460px-Build-a-Skateboard-Ramp-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/a\/aa\/Build-a-Skateboard-Ramp-Step-1-Version-2.jpg\/aid13178-v4-728px-Build-a-Skateboard-Ramp-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"