I've been searching around the forum and even though there are a million posts about building a sleeping platform, I can't find the answer to my specific questions. I just bought a 2013 Taco with the access cab. My bed has 2 notches in each side that look like they're made to accept a piece of lumber. The thing is, they're wider than a 2x6 (I had one around and tried it), but I'm pretty sure a 2x8 will be too wide. So, despite reading another post that said they're made for a 2x8, I don't think that can be the case. Is that correct?
The other thing I don't get is that a 2x6 (or 2x8) is too thick. The notch appears to be about an inch deep, so a board that is 1.5" thick will be higher than the wheel wells and "ledge" that goes all along each side of the bed. So, is it best to just rest something on that ledge and forget about the notches? When I first saw the notches, I thought a 2x6 in each with some plywood resting on them and the ledges would be perfect, but I don't see how that will work out.