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Essentials White Core mat board is a quality North American made mat board with a great variety of colors for decorative framing. The bright white Eco-Core is made of recycled paper and is buffered to be pH neutral (Acid-Free). This mat is best used for decorative framing and is not of conservation quality.

Choosing an Opening Size
Openings are cut to the size you specify; normally you will want an opening 1/2" smaller per dimension than your artwork. This gives space to hinge and prevents it falling through the mat opening. So, for example, an 8x10 photo would use a 7 1/2 x 9 1/2 opening.

Reveal
A reveal is how much the bottom (or inner) mat shows in the opening. Common reveals are 3/16" or 1/4".

Please check that your chosen reveal and opening size still leaves at least a 1" border on all sides of the mat. For example, for a 11"x14" mat with a 3/16" reveal, the opening can be no larger than 8 5/8" x 11 5/8".