Homemade Tow Dolly Ramps

Lay a 40-inch metal slab flat and horizontal. Scribe a line using your metal scribe and straight edge that starts from the top left corner of the slab and ends on the bottom edge, 15 inches away from the bottom left corner. Repeat this process on each 40-inch slab. Cut along the lines using your band saw. Smooth the edges of the metal using your grinder.

Position two of the 40-inch slabs on edge, parallel, with the angled cuts above the ground, and aligned. Space them 11½ inches apart. Clamp your ground to the 12-inch slab and weld it to each 40-inch slab so it lays flat against the angled cuts, with its ends flush with the sides of the 40-inch slabs. Its 12-inch side should be flush with the ends of the 40-inch slab. Use your square to make sure the 40-inch slabs stay perpendicular to the 12-inch slab between your welds. Pound the slag off with your hammer when you are finished with your weld.

Weld four more 12-inch slabs to the 40-inch slabs in the same manner. Space the slabs 5 inches apart. Repeat the previous step and this step with the remaining 40-inch slabs, and 12-inch slabs. These are your almost completed ramps.

Weld your C purlin to the ends of the 40-inch slabs on one of the ramps. The "C" must be facing the ground with the 12-inch slabs resting on top of the 40-inch slabs. The ends of the purlin should be flush with the sides of the 40-inch slabs. Repeat this process with the other ramp and the last C purlin.

Position the C purlin over the outside support bar on the tow dolly. This will keep the ramp from moving when you are loading a car onto the dolly. The 12-inch slabs should be resting on the 40-inch slabs when the ramps are in this position.