I have to admit I have planned on making a set of wooden ramps like some of the others....maybe several layers that can peg together like I have seen on here. But a lot of years ago I bought a couple of sets of the yellow legos and they work pretty darn well. I have broken a number of them in half from rough ground surface, but the half blocks are actually pretty useful too for not having to use more than necessary (instead of a full pyramid you can make them drop off clean at the back.) So they worn over the years and have gotten beaten up pretty well, but they are light, stack nicely and fit tight in the box I use for them. ANY of the above methods work pretty darn well. One of these years I need to actually get everything dead solid level and put some bubbles on the outside. I've had some for 10 years I think, and still not put them on either of the last two campers. I guess I enjoy the guessing game too much?