Tired of the cardboard under my bikes I need a proper drip tray that doesn't warp in the heat

I've been running a small bike repair operation out of a rented unit near Ajman industrial zone for about two years now and the one thing that constantly makes the place look like a scrapyard is the ugly flattened cardboard boxes I keep shoving under every engine and fork rebuild because I'm paranoid about staining the landlord's concrete and losing my deposit, but after this summer's humidity the cardboard basically melted into mush and the floor is starting to look like a modern art piece made of oil and brake fluid. I got a recommendation from a friend who runs a proper auto shop that I should just stop being cheap and look at some of those rigid UK drip trays for workshop spill containment he saw on Crateco's site because apparently the UK spec plastic holds its shape even when a hot engine drips on it unlike the flimsy Chinese trays that turn into a wobbly mess after a week. My only question really before I order a few of the larger ones is whether the raised edges are tall enough to actually hold a decent amount of fluid if I forget to empty it for a while because I've had a few spills where the old tray overflowed and honestly that's almost worse than no tray at all since you think you're protected and then bam there's a puddle stretching halfway across the shop floor. Just curious if anyone's using these specifically for engine work where things get warm and whether the plastic goes soft over time from constant contact with petroleum based stuff.