Set this up for my band saw. I have a small shop and often had to "walk" my band saw out from the wall to use it. I didn't have any regular hard wood pieces sitting around to make the rails so I laminated some baltic birch together then cut that into strips to size and used that. Seems to be fine. The carriage bolts supplied are just barely long enough. Definitely not long enough to add lock washers to. I stripped one when tightening so think the bolts may be rather soft. I did notice that the nuts a ever so slightly oversize on their outside dimension so had to use a well worn open end wrench or adjustable (probably imported). No big deal really. I may go ahead and buy some longer better grade carriage bolts and nuts as I like using lock washers on stuff and having a full 100% thread engagement. The mechanism to raise and lower is simple, strong, clever and effective. All in all I don't think these mobile bases can be beat for the price. No crappy plastic parts. Should last a lifetime or two and will save my old back a lot of problems from now on.