This is an acid-free, white core 4 ply (~.050" thick) mat. These mats DO NOT have an Opening cutout. They are blank mats that can be used as a backer, art projects, or for cutting your own openings into. Suitable for most everyday matting and picture framing needs.
Custom MAT SIZE: Type in the custom Mat size wanted, up to 28x34 or 28x28 Square.
• The mat will be cut down to your new size.
• Both sides of the new dimensions must be able to fit within the 28x34 mat board.
• If they don't, choose a larger 'up to Mat size' that fully fits your new size.
• If option left empty, the Mat will be cut as a 28x34 Mat.