#8 (18oz) Cotton Duck - Canvas Fabric
#8 Cotton Duck Canvas (18 oz) — Ultra-Heavy for Duffles, Chairs & Industrial Covers
Our #8 cotton duck canvas (also known as No. 8 duck cloth) is an ultra-heavy canvas at approximately 18 oz per square yard. With a dense, abrasion-resistant weave and serious body, it’s purpose-built for duffle & gear bags, director’s chair replacements, industrial covers & tarps, upholstery, and rugged outdoor applications. Available by the yard or full roll with wholesale pricing.
- Ultra-heavy (~18 oz/yd²): exceptional density, structure, and wear resistance
- “Duffle bag” & “chair duck” weight: classic spec for military duffles & director’s chairs
- 100% cotton: natural, breathable, and finish-friendly (dye, paint, print)
- Finishing options: FR & water-repellent treatments available upon request
What is #8 cotton duck canvas?
#8 cotton duck is one of the heaviest fabrics in the numbered duck system, weighing about 18 oz/yd². It’s tightly woven for maximum durability and structure in demanding applications.
Why is it called “duffle bag weight” and “chair duck”?
Historically, #8 duck was specified for military duffle bags and director’s chair seat/back replacements—hence the common nicknames.
What is #8 duck used for?
Typical uses include duffle/gear bags, director’s chair replacements, industrial covers & tarps, upholstery & slipcovers, tool bags & aprons, and floor cloths/backdrops.
How does #8 compare to #10 and #12?
#8 (~18 oz) is significantly heavier and stiffer than #10 (~15 oz) and #12 (~11.5–12 oz), making it best for projects requiring maximum strength and body.
Can you add FR or water-repellent finishes?
Yes—FR and water-repellent treatments are available (lead time/minimums may apply). FR documentation available upon request.
Care instructions
Pre-wash similar to final use if shrinkage matters. Machine wash cold; line dry or tumble dry low. Avoid bleach. Ultra-heavy canvases will soften and gain texture after laundering.
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#8/36" Cotton Canvas Duck (18 oz) - Natural
$7.59Canvas Fabric - Heavyweight Canvas - #8 (18oz.) - 36" Width This heavyweight #8 (18oz) natural canvas fabric is ideal for so many applications! When your project requires an unfinished, heavyweight, natural material, this is perfect...$7.59 -
#8/48" Cotton Canvas Duck (18 oz) - Natural
$8.79Heavyweight Canvas Fabric - #8 (18 oz.) - 48" Width - Natural Cotton Canvas #8 (18oz) natural cotton canvas fabric is just what's needed for applications requiring an unfinished, heavyweight, natural material. Commonly used in making...$8.79 -
#8/60" Cotton Canvas Duck (18 oz) - Natural
$9.89Heavyweight Canvas Fabric - #8 (18 oz.) - 60" Width - Natural Cotton Duck Cloth #8 (18oz) cotton canvas fabric can be used in numerous applications and products such as heavyweight bags, military covers, heavy tarps, floor cloths, pannier bags, duffle...$9.89 -
#8/72" Cotton Canvas Duck (18 oz) - Natural
$11.54Heavyweight Canvas Fabric - #8 (18oz.) - 72" Width - Natural Cotton Duck Our #8 (18oz) natural cotton canvas fabric is used regularly for a wide range of applications and products. Most commonly you'll find this material used for military...$11.54 -
#8/60" Cotton Canvas Duck - Khaki
$12.99Canvas Fabric |Cotton Duck Cloth | #8/60" Khaki Cotton Duck Cloth Description: #8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun...$12.99 -
#8/84" Cotton Canvas Duck (18 oz) - Natural
$13.19Heavyweight Canvas Fabric - #8 (18 oz.) - 84" Width - Large Canvas Our #8 (18oz) natural cotton canvas fabric can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed...$13.19 -
#8/60" Cotton Canvas Duck - Black
$15.99#8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers, upholstery,...$15.99 -
#8/60" Cotton Canvas Duck - Briquette
$15.99**Please note that the current lot of #8 goods are a soft pure finish - this means it has a slightly lighter hand and feel due to there being less starch in the finishing process** Description: #8 (18oz) cotton duck can be used in...$15.99 -
#8/60" Cotton Canvas Duck - Burgundy
$15.99Our #8 (18oz) cotton duck in burgundy can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers,...$15.99 -
#8/60" Cotton Canvas Duck - Dark Olive Drab
$15.99#8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers, upholstery,...$15.99 -
#8/60" Cotton Canvas Duck - Forest Green
$15.99Our heavyweight #8 (18oz) cotton duck in forest green can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat...$15.99 -
#8/60" Cotton Canvas Duck - Grey
$15.99Our #8 (18oz) cotton duck in Grey, a heavy duty canvas, can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat...$15.99 -
#8/60" Cotton Canvas Duck - Navy Blue
$15.99Heavyweight Canvas in Navy Blue #8 (18oz) cotton duck canvas is a Big Duck Canvas customer favorite, and is often used for making heavy duty tote bags, military equipment covers, extra sturdy tarps, backpacks, pannier bags, duffel bags, gun cases, bed...$15.99 -
#8/60" Cotton Canvas Duck - Olive Drab
$15.99Heavyweight Cotton Canvas Fabric - Olive Drab #8 (18oz) cotton duck canvas can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffel bags, gun cases, bed rolls, awnings, tents,...$15.99 -
#8/60" Cotton Canvas Duck - Orange
$15.99#8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers, upholstery,...$15.99 -
#8/60" Cotton Canvas Duck - Red
$15.99#8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers, upholstery,...$15.99 -
#8/60" Cotton Canvas Duck - Royal Blue
$15.99Heavyweight Canvas Fabric #8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks,...$15.99 -
#8/60" Cotton Canvas Duck - White
$15.99**Please note that the current lot of #8 goods are a soft pure finish - this means it has a slightly lighter hand and feel due to there being less starch in the finishing process** #8 (18oz) cotton duck can be used in numerous...$15.99 -
#8/60" Cotton Canvas Duck - Yellow
$15.99#8 (18oz) cotton duck can be used in numerous applications and products such as heavy bags, military covers, heavy tarps, pannier bags, duffle bags, gun cases, bed rolls, awnings, tents, canvas canoes and kayaks, boat covers, tire covers, upholstery,...$15.99