These are not firm solid polystyrene like I’ve used for signs in our sign company. They are styrofoam exactly like egg cartons. They tear and damage really easily. Admittedly after being painted and put up on a ceiling, if one is unaware of what they feel like- they look OK. But if they are used on a wall or where people can touch them, they will damage easily and look very cheap.

These things are great. We first used these when redoing a camper that had a rotted roof. The camper roof isn’t flat, it has a curve which these nicely formed to. To those complaining these are flimsy foam…read the description, it’s clearly described as such. If you didn’t read it thoroughly you really shouldn’t be complaining. The second time we used these was on a vaulted ceiling at a new room addition at our camp. After sheet rocking the walls the thought of doing the ceiling was not a fun prospect. We did a layer of luan then these tiles. I rolled the paint on mine with a 1/2 nap roller. Wasn’t hard but if you want to save time spray with latex paint. You have to use latex since they’re styrofoam. Just be sure to have a few blades handy though, if blade dulls because you’re cutting on a wood surface you won’t have a clean edge. These tiles are so forgiving if putting over an imperfect ceiling. I love these tiles!