Also known as mat board and museum board, this paperboard is often used to mount pictures or build architectural models and prototypes. Made of 100% cotton, it's stronger than traditional cardstock and won't fray when it's cut.

This paperboard meets Library of Congress archival standards for mounting artwork and other documents. It’s free of acid and lignin, chemicals that can damage paper and textiles. Plus, it’s made with fade-resistant pigment to prevent it from lightening or yellowing over time.

1-ply paperboard is about as thick as a business card. It cuts more easily than 4-ply paperboard, so is a better choice for model-making projects or light duty mounting.

4-ply paperboard is about as thick as a penny. Stronger and more durable than 1-ply paperboard, it’s suitable for mounting artwork, photographs, and other documents for a long time. Due to its thickness, cutting 4-ply paperboard may require several passes with a utility knife or paper cutter.

For technical drawings and 3-D models, click on a part number.