How to Extend a Quarter Pipe

Quarter pipes provide near-limitless opportunities to perfect new skateboarding tricks and maneuvers, but any obstacle can get stale and boring after a while. Building a quarter-pipe extension is a great way to add versatility to your existing skateboarding structure and help you get comfortable on steeper, more vertical ramps.

Things You'll Need

  • One sheet of 4' by 8' plywood
  • 4 8-foot 2-by-4s
  • Power drill with Phillips head screwdriver extension
  • Deck screws
  • Measuring Tape
  • Pencil
  • Straight edge
  • Glue for wood
  • Saw
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Instructions

    • 1

      Measure a 4-foot by 4-foot square on a sheet of plywood. Use a pencil to draw the fourth edge, and saw along that edge, splitting the plywood into two 4-foot by 4-foot squares.

    • 2

      Cut a 2x4 into two 4-foot pieces. Cut another 2x4 into two 45-inch pieces.

    • 3

      Arrange the 2x4s on the ground so that they form a square. The 1.5-inch sides should be touching the ground. The two 45-inch pieces form two opposite sides, and the two 4-foot pieces sit outside them, forming the other two sides.

    • 4

      Screw the two 4-foot 2x4s into the 45-inch 2x4s at the corners of the square -- two screws per corner.

    • 5

      Set the 4 foot by 4 foot sheet of plywood on the square. Screw the sheet of plywood to the 2x4s at roughly 1-foot intervals.

    • 6

      Screw the frame of the extension into the frame of the quarter pipe so that the plywood face of the extension is flush with the edge of the quarter pipe.

    • 7

      Cut another 4-foot long 2x4 and screw it into the frame of the quarter pipe at the back of the deck so that it is parallel to the extension. Cut an additional two 2x4s to fit between the 2x4 at the back of the quarter pipe's deck and the 2x4s that make up the sides of the extension. The length will vary depending on how broad the deck of the quarter pipe is.

    • 8

      Screw the two 2x4s into the frame of the quarter pipe's deck so that they're flush with the edge of the extension and flush with the 4-foot long 2x4 attached to the back of the deck.

    • 9

      Cut two additional pieces of 2x4 to serve as braces. Their length will vary depending on how broad the deck of the quarter pipe is. Use the pencil to trace angular cuts off the 4-inch sides of the 2x4s so they fit flush against the 2x4 at the back of the quarter-pipe deck and the 2x4 on the side of the extension. When cut, the 2x4 pieces should look like trapezoids.

    • 10

      Screw the brace 2x4s into the top corners of the extension and the edges of the 2x4s along the deck of the quarter pipe.

    • 11

      Test the extension carefully, adding bracing as needed.