50-Pack Large Corrugated Cardboard Sheets for Mailers, 11x14 Flat Packaging Inserts Pads, Shipping, Packing, Mailing, Dividers, Crafts, DIY Art Projects Supplies (2mm Thick)

Good price for what you get, just keep in mind these are very thin pieces! Still sturdy enough for little models and projects.

What magnificent cardboard sheets! I had to trim them a bit to fit my mailing envelopes, but they are sturdy without being thick. I use them when I mail music books, which get damaged if put into envelopes without support.

I spent an alarming amount of time trying to find a cost efficient and good quality solution - this is it. I can put these in a sleeve with the art, ship them in a poly bag, and they arrive save and sound (provided USPS doesnt decide to take my fragile stickers as some dumb personal challenge).

These are sturdy and are great quality. I use these as backing for paper crafts that I sell and I love them. You can cut them down too so you can make them any size!

I purchased this cardboard to use for extra rigidity when shipping art prints. It is extremely rigid (more so than cardboard used for boxes), and arrived very well packaged with no damaged edges. Very impressed with this cardboard, will be ordering again in the future!

Product was exactly as stated. Perfect bases for our students 3D model projects!

I’m making cardboard houses it works great for me.

Now very warped. I live in a dry environment with low humidity so not sure why they would warp. I tried putting flat cutting board + weight on the package, but no success after 2 weeks. Very disappointing.

Thin, but a little thicker than card stock. Not really flimsy. A nice insert stiffener for semi-rigid mailers. Would use a little thicker pad for more protection.

These came quick(which is fairly standard with Amazon Prime nowadays) and we’re just what I needed. I required something sturdy for packaging artwork prints and these did the job nicely.