Perfect for DIY framers, artists, and craft enthusiasts - our Ultimate White Blank Mat Board Sheets offer a flexible, professional-grade option for custom-cut projects and backing applications.

These uncut, full-size sheets are made from 4-ply (1.4mm thick) Ultimate White matboard with a bright white core. Each sheet is acid-free and buffered with calcium carbonate to preserve the quality of your prints, artworks, or presentations over time.

Blank matboards are commonly used to create custom window mats, backing layers for framing, or as a base for portfolios, school projects, and gallery displays.

If you're looking to cut your own mat openings or use a full sheet as a protective layer, these boards provide the versatility you need.

Key Features of Ultimate White Blank Mat Board Sheets

• Uncut Full Sheets – No window opening, giving you full flexibility to cut and design as needed.
• Acid-Free & Buffered – Made from conservation-grade pulp and buffered with calcium carbonate for long-term stability.
• Premium Quality – 4-ply, 1.4mm thick matboard with a clean, bright white bevel core.
• Imported Stock – Sourced from North America and finished in our Sydney workshop.
• Multiple Size Options – Choose from a variety of full sheet sizes suited to both framing and craft use.

Popular Uses for Full Ultimate White Uncut Mat Board Sheets

• Cutting your own window mats
• Backing boards for picture frames
• Portfolio, school, or gallery projects
• Craft or model-making projects

Size & Colour Notes

• Sheet sizes are listed in inches and are cut to standard dimensions. Metric (cm) values are approximate for reference only.
• Due to screen variations, actual product colours may vary slightly from what you see online. These boards have an Ultimate White front with a white core and backing.

Also looking for something else?

• Acid-Free Foam Board – Shop our Cut-to-Size 5mm White Foam Board for reliable backing and craft use.
• Self-Adhesive Foam Board – Try our Self-Adhesive Foam Board for fast, no-glue mounting.
• MDF Backing Boards – Explore Cut-to-Size MDF Boards for strong, structural support inside frames.