How to Build a Mini Ramp for a BMX

A mini ramp for a BMX enthusiast is a good beginner ramp and can prepare him to jump the bigger ramps in a competition. A 20-inch incline is a reasonable height to start jumping, especially at high speeds. Thick, treated plywood and construction lumber are adequate choices of materials for this project because they can withstand abuse from constant riding and weathering. Building a ramp is not a complicated task, although building it correctly so it is durable will require some focus.

Things You'll Need

  • Safety glasses
  • Tape measure
  • Treated plywood, ¾-inch, 20-inch-by-30-inch
  • 5 Treated pine boards, 2-inch-by-4-inch-by-18 ½-inch
  • Treated plywood, ½-inch, 20-inch-by-36-inch
  • Circular saw
  • Screw gun
  • 30 Wood screws, 3-inch
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Instructions

    • 1

      Cut your ¾-inch plywood from corner to corner with your circular saw. You should have two equal triangular pieces with the hypotenuse measurements of 36 inches. These pieces will function as the sides to your ramp.

    • 2

      Position the sides so they are standing on their 30-inch edges, 18 ½ inches apart, and so the hypotenuses are parallel. Position a pine board perpendicularly between the sides so its 4-by-18 ½-inch surface is flush with both 20-inch edges of the sides, and so the opposite top corner of the board is flush with the hypotenuses. Screw through the plywood and into the ends of the board. Use two screws for each end.

    • 3

      Position another pine board 6 inches away from the first, so the 2-by-18 ½-inch surface is flush with the hypotenuse of each side. Screw through the sides and into the board. Repeat this step using your last three boards. This is your ramp frame.

    • 4

      Lay the 1/2-inch sheet of plywood over the ramp frame so the 36-inch edges are flush with the sides of the ramp, and so the 20-inch edges are flush with the bottom and top of the ramp. Screw through the plywood and into the pine boards to secure your ramp surface.