Corrugated Plastic 4MM White Sign Blanks - 24"x18" - Coroplast Sign Boards - Set of 2

I've been using these to build working prototypes of scale model buildings and amusement park rides. The material is strong, lightweight, easy to cut, and less bulky than foam board. Also, if you're running wire for lights or animations you can route it through the corrugations. You could used corrugated cardboard but it tends to shred up and get messy when cut.

My use is a bit unusual.. I use these to cover the worn out part of my archery target to catch the arrows and pin the bulls eye on. I pin the sheet to the target then a bulls eye on the sheet. They are waterproof, catch arrows well, release them well and stands up to lots of shots without breaking down. Not their intended use but still they work well-- will order again when I need them

I bought these replacement boards for a dry erase sign we put out in our community to advertise various events. I had to put a lot of effort into cleaning these new ones, although I have found that if I spray the dry erase cleaner and immediately start to rub, it works better. Leaving the cleaner on longer seems to make erasing much harder. Maybe I just need to keep working on the right amount of cleaner/pressure/time for maximum cleaning!

Very durable and thick. Easy to cut and easy to paint. Really great product for the price

Most people use these for signs, but I cut them to fit the bottom of a market shopping bag that I'd made to take to the grocery store. I needed something sturdy to shape the bottom of the bag, and that was plastic that I could easily clean if something dripped on it or got it dirty. This worked perfectly for that use. But--if I'd been using it for a sign, I would not have been happy. The two pieces arrived in a thin paper envelope, and were very tightly pushed into the envelope. There was nothing to protect the sign blanks from being compressed or bent. Mine had some creases in them, and the edges were slightly crushed in places. The envelope had a boot footprint on it, so it had been stepped on, and was quite dirty so probably dropped on the floor or outside in the mud. The shipping container needs to be re-thought.

Ordered these to make signs for friends running a marathon in the rain... and they held up great! I just wrote on them with Sharpie and let the ink dry and they didn't smudge much at all after getting soaked.

I used this to make a border around my hedgehog cage. I made my hedgehog cage out of storage cubes and they love to climb so I needed something to cover the sides with. This was very easy to cut and make into the shape that I needed to fit into the cage.

Very firm and sturdy posters. I used these for a sign for a friend's marathon. Despite the high winds these posters held up and I was able to cheer my friend on.