













50-Pack Large Corrugated Cardboard Sheets for Mailers, 11x14 Flat Packaging Inserts Pads, Shipping, Packing, Mailing, Dividers, Crafts, DIY Art Projects Supplies (2mm Thick)
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Shep
Greater than one weekMy grandson & I made a Mayan pyramid temple with this product! It was perfect!
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Candice Wagner
> 3 dayBought for art project and it was perfect
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Carol
Greater than one weekI’m making cardboard houses it works great for me.
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Dr. Elenor Olson
> 3 dayIve brought these before but this batch was completely warped. I use for shipping books and it warps the books. Useless. edit: ordered again to see if it was just a fluke that they were warped. it wasnt. 2nd batch was warped too. probably due to how they ship them
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NS
Greater than one weekGreat quality. Very sturdy!
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Diane D
> 3 dayPrice is a little high for cardboard
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H. Heller
09-06-2025I 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).
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Lawde
> 3 dayI use these to ship pages of baseball cards, comic books and other bendable merchandise. They are super sturdy, but not heavy which is good for the cost of postage. I found these to be the best for the money. Highly recommend!
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Michelle Harmon
> 3 daySmooth edges and consistent width. I use these for my Etsy store as backing for vintage ads that I put into protective sleeves. They are sturdy and keep the Ads from being bent during shipment.
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PianoGuyFromSC
> 3 dayWhat 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.