#8 (18oz) Cotton Duck - Canvas Fabric

#8 Cotton Duck Canvas Fabric - 18oz Heavyweight Duck Cloth

Our #8 cotton duck canvas fabric is a heavyweight 18oz cotton duck cloth built for demanding sewing, industrial, and utility applications. Also known as chair duck or duffle bag canvas, this strong woven cotton canvas is ideal for floor cloths, heavy tote bags, duffle bags, director’s chairs, equipment covers, tool bags, aprons, upholstery, and industrial canvas projects.

Why Choose #8 Cotton Duck Canvas?

#8 cotton duck is one of the heaviest numbered duck fabrics, offering serious body, strength, and abrasion resistance. At approximately 18oz per square yard, this canvas is heavier than #10 and #12 cotton duck, making it a smart choice when your project needs structure, durability, and long-term wear resistance.

• 18oz heavyweight canvas for tough applications
• Popular for floor cloths, painted canvas rugs & art surfaces
• Excellent for duffle bags, heavy totes & tool bags
• Classic chair duck for director’s chair replacement fabric
• Industrial strength for covers, tarps & utility projects
• FR treatment available for fire-retardant project needs

Heavyweight Canvas for Floor Cloths, Bags & Chair Duck

Artists and makers choose #8 cotton duck for floor cloth canvas because it has the weight and structure needed for painted floor coverings, canvas rugs, large art panels, and durable decorative surfaces. Bag makers love it for duffle bags, heavy tote bags, tool rolls, aprons, and gear bags where lighter canvas may not provide enough body.

This fabric is also commonly called chair duck because it is a classic choice for director’s chair seat and back replacements. Its heavyweight construction gives chairs the support, tension, and durability needed for repeated use.