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  • 2 4" x 8" x ¾" plywood sheets
  • 4 4" x 8" x ½" plywood sheets
  • 8 2" x4" boards
  • 25 2" x 6" boards
  • 3 4" x 4" boards
  • 3 4" x 8" x ¼" sheets of skatelite or ramp armor
  • 1 16" x 8" piece 11-gauge sheet metal
  • 1 8" schedule 40, 2" pipe
  • 3 ¼" ACQ-rated galvanized nails (.131 diameter)
  • 3" ACQ-rated Screws
  • 1 ¼" Tyrex ACQ-rated no. 8 screws
HOW TO BUILD A QUARTER PIPE

You can thrash if you want to, just by walking out your front door when you build your very own quarter pipe. Follow X Games ramp builder Nate Wessel's steps to turn some plywood, pressure-treated wood, metal sheets and a pipe into a shredding-ready ramp.

Difficulty

Date: Sept 30, 2010

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1. Measure and cut the ramp.

Lay two pieces of ¾" plywood side by side. On the edge of one of the plywood pieces, measure and mark a spot 7" from the short side. Screw one 2x4 into the other plywood piece at a point that's 8' from both the 7" mark and the bottom of the first. This will serve as a compass. Draw a curved line from the 7" mark down to the bottom. Then, up in the center behind the mark, draw a notch 1 ½" from the short side and 4 ½" down.



2. Cut notches.

Cut along the curve, then snip out the notch. This is one side of the jump. Now lay the cutout over the remaining plywood, trace an exact copy, and cut it out.



3. Build the assembly.

Cut twelve (12) 2x6s and one (1) 2x4s to a length of 94 ½". Attach the sides by nailing the planks along the curve of the ramp 8" apart. Note that the 2x4 is second from the bottom and the final 2x6 is attached with its flat surface up. Just under the notches, along the back edge of the ramp sides, nail in two 43 ½" 4x4 posts so that 2" protrudes from the plywood. Then attach the last 2x6 to the bottom of the posts. Then attach the last 2x6 to the bottom of the posts.



4. Build the deck.

Nail nine (9) 41" 2x6s between two 8" 2x6s, exactly a foot apart. This will serve as the deck frame. Nail it into the notches, and then fasten upright 8" 2x4s in the corners. Connect the back posts with an 8" 2x4 at ground level then connect the front posts to the back ones with 39" 2x4s. Then nail two 2x6s beneath the deck frame for support.


5. Build and secure the ramp surface.

Create two layers of ½" plywood for the jump surface. For the first layer, line up one sheet with the bottom of the jump and secure it with as many nails as needed. (The top edge should match up with the seventh 2x6 from the bottom of the base.) Fasten a second sheet above the first and trim so it ends at the top of the jump. For the second layer, measure two feet below the first layer"s middle seam. That will be the top edge of a 2" x 8" piece of plywood. Above that, put a full 4" x 8" plywood sheet, and above that, a 19 ½" x 8" sheet. There will be a slight overhang at both ends.



6. Add the pipe.

Place a ½" shim of plywood where the pipe will sit. With a 3/8" bit, drill four evenly spaced holes along the pipe, and then rest the pipe on the shim so that it"s snug against the ramp (holes facing up). Attach it with 3" screws and nail 2x4 tightly behind it.


7. Secure metal sheet at ramp bottom.

Drill two parallel rows of holes in the metal sheet – one along the top edge, the second 3" below, the holes should be 12" apart. Use the router bit with your drill to widen the holes to that you can countersink the screws when you attach the sheet. Cut a 1/8" x 8" shim off the edge of a 2x4. Mark a line 12" from the bottom of the plywood and line the shim up beneath it. Place the sheet metal over the shim so that 4" of it extends past the bottom of the plywood and it with 1 ¼" screws.



8. Attach Skatelite.

Cut 5 ½" x 5 ½" squares from the corners of the long side both a ¾" thick 4" x 8" piece of plywood and a 4" x 8" sheet of Skatelite to make room for the 4x4 posts at the back of the deck. Nail the plywood onto the deck and lay the Skatelite on top. Cut the other sheets of Skatelite is 4" x 84 ¼" and lay them on the ramp so that the seam is in the middle. Using a 3/16" bit, drill holes every 6 inches around the edge of the Skatelite and every foot in the middle, and then widen the holes with the router bit. Attach all three pieces using 1 ¼" screws.


9. Finish the ramp.

Cover the pipe with an oil-based paint to prevent skateboards from sticking, and add a deck handrail, using the supplies you have left over. Personalize the jump with stickers that fire you up. Commence thrashing.





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