When choosing a bed for your crate, the most important thing you can do is measure the interior of your crate first. Do not go off the dimensions the manufacturer provides, as they often round up. That means that a crate labeled as a 41" x 27" might actually be a 40.5" x 26.75" inside, and that will limit what beds might fit in the space.  If purchasing a Chew Proof Armored bed, please note that the dimensions listed for the bed are taken from the outermost edges of the frame, and the frame is completely rigid. These beds cannot fit in a crate that is slightly smaller than the bed dimensions, so it is important to make sure your crate is large enough to fit the size you want. In fact, for best results, you'll want about a quarter to half inch of wiggle room between the bed and the crate wall. If purchasing a Tough Rip-Stop Dog Crate Pad, you have a lot more freedom since these pads are relatively thin and flexible. They can be rolled or folded to fit smaller or irregular spaces. Please just bear in mind that if you have a chewer, rolling or folding the pad can cause the material to bunch up and make it easier to chew on. If purchasing a Tough Rip-Stop Orthopedic Dog Bed, you have a little wiggle room with sizing, but not much. The solid foam core is not nearly as flexible as the polyfill center of a Tough Crate Pad, and the foam can only compress about an inch or two. Larger sizes (XL and XXL) might only be able to compress a quarter of an inch, since they are much thicker and denser. Try to get a size as close to your crate dimensions as possible. Please note that the beds above are sized for standard wire crates, so if you have a plastic carrier crate or a more custom crate, you will likely need to size down in order to make the bed fit. We do not recommend purchasing any of our regular beds for crate use, as they run much wider than a standard crate and will not fit very well at all.