Do it Yourself Mobility Ramps

Lay a 144-inch two-by-twelve flat and draw a diagonal line across it from corner to corner. Cut along the line using your table saw to divide the board into two equal pieces.

Position the fence on the table saw so it is 11 ¼ inches away from the blade. Set the blade at a 20-degree and towards the fence. Cut the edge of one of the 36-inch boards at a 20-degree angle using the fence as a guide. This angle will make it easy for a mobility scooter to get on to the ramp.

Set the 144-inch boards on edge, 33 inches apart, parallel and so the hypotenuses are aligned. Set the board from Step 2 perpendicular across the boards so its 20-degree edge is on the ground and flush with the ends of the boards. The ends of the 36-inch board should be flush with the sides of the 144-inch boards. Screw the 36-inch board to the 144-inch boards using six screws.

Lay the rest of the 36-inch boards across the 144-inch boards so they are aligned with the first and spaced ½ inch apart. This gap will allow a spot for snow and rain to go through. Screw the boards down using six screws for each board.

Position a 120-inch one-by-ten flat against one of the 144-inch boards. It should be 12 inches away from each end of the 144-inch board, with 5 inches of its 10-inch surface above the 36-inch boards. This board should be parallel with the hypotenuse of the 144-inch board. Screw the board to the 144-inch board using 10 screws spaced 11 inches apart. Repeat this process on the other side of the ramp using the last 120-inch board. These boards will stop any wheelchair or scooter from going off the ramp.