We only have space for a 36 .inx36 .in do you have a curbless try that'll work for that size?

The 36 .in x 48 .in can be cut down to size. You will want to cut 6 .in per side to maintain the center drain on the 48 .in length. You will also want to put the edge lip back on. Check out the wedi videos to show you how to do this. It can be done with a utility knife.