Golden State Art, 8.5x11 Picture Mat Matte Backerboards for Framing. Pack Contains 50 Backing Boards (White, 50 Pack)

I use these with sticky-back magnetic sheets to store cardmaking dies. They work beautifully. I've been using them for years. Sturdy yet not too thick, and the white surface is pleasing.

I am an artist and use these backings for all my prints. They are a strong and durable cardboard that keep the prints from bending in the mail. I have these backings in multiple sizes for my artwork. I always come back to this brand!

These work great to protect my art prints and watercolors. I bought the corresponding size bags (sized slightly bigger than the backing boards) and am happy with both products. They were packed well and shipped quickly.

I use these sturdy backboards to support 8x10 photographs when I ship them to WhatNot buyers, and I use them to support photographs from my collection that need extra protection when they are sleeved before storage. They do the job.

Relly what I was looking for was a consistent size that would fit in a 12x12 frame and they did.

Great product. I do wish I could find boxes slightly smaller like 13 x 19". I have tried the 12 x 18" and it is a touch too short. If you know where I can get the 13 x 19 size or if you make custom sizes I would love to know. Thank You though for having this product available very handy for shipping posters.

We sell art prints and these are perfect as backers for our 8.5x11 prints. A must have if you are selling art. We stamp the back with our logo and it makes for a great backer!!

Another disappointing order from Amazon..every board has dented corners. So expensive too, and the quality is terrible.