I like to build ramps and bridges with wood planks in my backyard. To build a bridge, you need to get some bricks and then stack them. (I recommend four or five bricks to each plank of wood.) Then ...

Using a miter saw, cut the stringers (A and B), header (C), and blocker boards (D and E) to length from the treated 2x4s. Using a track saw or circular saw, cut the 1:12 ramp slope on the outside (A) ...