20 Pack 11x14 inch Black Foam Boards, Foam Core Backing Boards 3/16 Inch Thick Double

Can't beat the price

I was disappointed with the availability, and excess shipping costs, of metal outside covers for my crawl-space vents. Using this product, I simply removed the vent, and duct-taped a cut foam board to cover the rear openings of the vent. Very easy to cut. My crawlspace dehumidifier runs less often now that I have sealed the vents.

It arrived with gouges in the outer pieces, and was so soft I accidentally dented it with my thumbnail just by picking it up. It is very delicate, and came with minor damage that made it impractical for my purposes. It's not a stand-alone backing for art photos, like I hoped. I did make a mistake, because I thought I was buying a tougher foam core that was layered between sheets of stiff paper, but even so, this stuff is too expensive for what I got.

I read everything before I bought these. They are the correct size and thickness. Unfortunately, they don't have anything to make them the slightest bit sturdy. My finger poked halfway thru one getting it out of the bag. I need these for a project or I would send them back. I also always read reviews. This time I didn't and should have.

The price & quantity are decent but I've used better made foam core. Worked for my project but not as firm as other brands

Does not have a paper lay over the foam board. It’s not ad sturdy ad i expected. Also i did not pay close enough attention to the length. I was paying attention to the width and from the picture it appeared to be more rectangular so I assumed it would be the length of the average foam board it in about half the length of the average foam board. Slightly rectangular but more on the square side compared to the pictures shown.

This isn't foam core, meaning foam between 2 paper faces (which is what the product photos show). It's just foam

Practically everyone of these boards had scuffs or the corners were smashed. I would not recommend this product if you want something that is very finished and professional looking.