5" x 7" Acid-Free Bainbridge Foam Core Backings - Pack of 25 Pieces

+ $8.95 shipping
+ $8.95 shipping
Made to order
Preparation takes 1-2 business days
Arrives from the United States

Item details

Use what the pros do for backing your prints, photography, mats and greeting cards. An essential item for picture framing, Bainbridge acid-free foam core won't introduce any acid into your frame package, keeping your artwork and archival mats safe.

A useful item to keep around the studio for artwork and crafting. Foam core can be used as a base for collage and even as a drawing and painting surface. The boards are super lightweight, yet very sturdy, resisting warping. They can be cut into easily for making crafting shapes and are the preferred choice for introducing depth into shadowbox displays.

The 5" x 7" size is perfect for mounting and backing 5x7 artwork, photographs and A7 greeting cards. They will fit into our A7 Clear Sleeves:


We offer three choices of archival Bainbridge Foamboard:

* 1/8" - This is recommended for backing mats and artwork for gallery print bins and art fairs. Also great for including into frames with a narrow depth and for all slim profile mounts. Bright white.

* 3/16" - A more sturdy and rigid board, this has extra depth to fill deeper frames and for larger profile mounting. Great as a space filler in shadowboxes. Bright white.

* Black 3/16" - The only black acid-free foam core on the market. For dramatic mounts and backings where the edge or front of the board will remain visible. Preserves the dark, eye-catching look of black matting for matted print packages.

Packs of 25 pieces.

We offer custom cutting for any size of Acid-Free Foam Core. Just send the owner a message indicating your requested size and we will make a custom Etsy item for you.

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Shipping & policies
Preparation takes 1-2 business days
Arrives from the United States
Estimated Shipping
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We choose the best shipping method relative to the size and weight of the item(s) ordered.

If you have a deadline when your product(s) need to arrive, please write us a note. If we need to upgrade your shipping method in order to make your deadline, you will be contacted before order shipment.

International orders are also accepted. Please contact us before placing an order and we will give you an accurate shipping quote.


We accept all major credit cards and PayPal. CA State Sales Tax is only charged for in-state (California) orders. Orders may be cancelled until they are processed and shipped out to you - let us know right away if you need to cancel an order.

Returns & exchanges

We accept returns on all items, except where noted in the item description.

All returns not of our error are subject to a 15% re-stocking fee and the cost to ship the items back to us is the customer's responsibility.

All items must arrive back to us in resellable condition in order to qualify for a refund.

Contact us for details on getting a return authorization.

Additional policies

Oak Creek Printworks offers custom cutting on many of our products, including archival mats, glass/Plexi, foam core and frames. Please contact us with the details of your request and we will send you a comprehensive quote.

If you need large quantities of any of our items, let us know and we can create a custom item for you to purchase directly in our Etsy shop.