So we've been trying to go as cheap as possible and I happened to come across washing machine pans and found that they are the perfect size for a shower pan with corrugated steel walls. And they are only $20. They are made of PVC and are supposed to be durable. We were planning on putting a wood frame around it and securing it to the floor with caulk or something. Any ideas? anyone tried that?
My beloved's house had one for 2 years while we rebuilt her big tiled shower. It worked fine, but did not drain completely and flexed annoyingly. These issues could probably be mitigated or nonexistent with the right model pan and permanent installation techniques.