Could a 12X30 sheet of acrylic as a lid, either 1/4" or 1/2" thick hold about 40-50lbs of cats who think the aquarium is for them?
- JoeLv 76 months ago
Either way, you will have to secure it. Don't depend on just gravity to hold the lid in place.
Not doing the math, but I think I'd go with the heavier 1/2 inch thickness. I don't think that the 1/4 inch would break, but it would flex, rather a lot. 3/8 would be OK, too.