Custom Cut Framing Mats: Peterboro White Core

Introducing the broadest selection ever of custom design mats for picture frames! Franken Frames uses Peterbro White Core mat board, an almost acid-free board with a neutral pH buffered core and acid free backing paper. The surface paper is not acid-free but does resist fading. Make your selections and order custom design mats for picture frames without even leaving your home. Our custom cut framing mats are picture perfect.

Important Do’s and Don’ts

Do use 1/8 inch as the smallest measuring unit. Plan your sizes accordingly. Avoid measuring in 1/16 inch units or smaller.

Don’t use the picture border as the image size and expect the mat to fit precisely to the border — it won’t. You must plan to overlap or leave white space around the image.

Mat DimensionsMat Terms

The diagram shows a double mat with the parts identified. The light blue is the top mat, the dark blue is the bottom mat. The S, T, and B or the Side, Top, and Bottom widths of the bottom mat.

Pricing

Double mat price is 2X the single mat price, triple mat price is 3X single mat price. 32″X40″ is the largest mat we can ship. Rag mats are 2X the regular mat price. For mat sizes over 20″X30″ there will be an additional charge added to the order.

Please use decimals for all measurements. Use the chart to the right for reference.
Only decimals 0.0625 (1/16) are valid.

Mat Order

For Double Mat (optional)

For Triple Mat (optional)

FractionDecimal
1/16″0.0625″
1/8″0.125″
3/16″0.1875″
1/4″.25″
5/16″0.3125″
3/8″0.375″
7/16″0.4375″
1/2″0.5″
9/16″0.5625″
5/8″0.625″
11/16″0.6875″
3/4″0.75″
13/16″0.8125″
7/8″0.875″
15/16″0.9375″