Description
#8 Cotton Duck Canvas Fabric – Navy Blue | Heavyweight 18oz Duck Cloth
Our #8 cotton duck canvas fabric in Navy Blue is an ultra-heavyweight 18oz cotton duck cloth engineered for demanding industrial, marine, utility, and outdoor applications. Built with a rugged plain weave double-filled construction, this heavyweight canvas delivers exceptional durability, structure, abrasion resistance, and long-term performance.
The Navy Blue color offers a deep classic blue tone inspired by marine canvas, military gear, nautical interiors, workwear, and heritage utility products. This versatile heavyweight canvas is ideal for duffle bags, heavy tote bags, director’s chairs, industrial covers, awnings, floor cloths, upholstery, tarps, workshop gear, and rugged sewn products.
Often referred to as chair duck or duffle bag canvas, #8 duck is one of the heaviest numbered cotton duck fabrics available. It provides substantially more body and durability than lighter #10 or #12 duck fabrics, making it ideal for demanding applications where strength and structure matter.
Navy Blue remains one of the most timeless and versatile canvas colors because it works beautifully across marine-inspired spaces, industrial projects, utility sewing, outdoor applications, workshop gear, school branding, classic upholstery, and heritage-style canvas goods. The darker tone also helps conceal dirt, wear, and everyday use.
Need FR treatment? This fabric can be treated for fire retardancy (FR) upon request for qualifying industrial, commercial, theatrical, or specialty applications. Minimums and lead times may apply.
Not sure if #8 duck canvas is right for your project? Browse our Cotton Duck Fabric collection, explore our cut & sew manufacturing services, or order a fabric sample here.
Key Features
- #8 cotton duck canvas — ultra-heavyweight 18oz duck cloth
- 100% cotton construction — durable natural fiber canvas
- Plain weave double-filled construction — dense and abrasion-resistant
- Navy Blue color — classic deep blue utility canvas
- Chair duck & duffle bag weight — ideal for heavy-duty sewn products
- Light DWR finish — helps resist minor stains and dirt
- Excellent structure & body — ideal for industrial and utility projects
- FR treatment available — fire retardant treatment available upon request
- Sold by the yard or roll — ideal for production and manufacturing
Project Ideas
- Duffle bags, heavy tote bags, and utility gear
- Director’s chair seat and back replacements
- Floor cloths, painted canvas rugs, and heavy art surfaces
- Industrial covers, tarps, and workshop applications
- Awnings, marine projects, and outdoor décor
- Tool bags, aprons, and workwear accessories
- Classic upholstery, wall coverings, and stage backdrops
Specifications / Information
| Category | Double Filled Numbered Duck, Cotton Duck Fabric, Heavyweight Canvas |
| Color | Navy Blue |
| Fabric Content | 100% Cotton |
| Duck Number | #8 Cotton Duck |
| Fabric Width | 60" — 1 Linear Yard = Approx. 60" x 36" |
| Weight | 18oz per Square Yard |
| Hand | Medium / Heavy |
| Weave Construction | Plain Weave Double Filled |
| Finish | Light DWR Finish for Stain Resistance (Not Waterproof) |
| Shrinkage | Approx. 6–8% |
| Roll Size | Maximum of 50 Yards Continuous |
| Fire Retardant | Not fire retardant as stocked — FR treatment available upon request |
| Care Instructions | To minimize shrinking, machine wash in cold water and tumble dry without heat or air dry. Avoid bleach. Heavy canvases soften and gain character after laundering. |
| Testing | Fabric should be tested for your specific requirements prior to cutting. No claims are allowed on processed goods. |
| Ordering | Please order enough fabric to complete your project. Dye lots may vary slightly and exact future color matches cannot be guaranteed. |
* Each color is a representation of our stocked color standard and may vary slightly by dye lot and production run. Deep colors may crock or bleed and should not be mixed with white or light colors. We recommend ordering a sample swatch before large production runs.
Frequently Asked Questions
Is Navy Blue canvas good for marine and boating projects?
Yes. Navy Blue is one of the most popular colors for marine-inspired applications because it offers a classic nautical appearance while helping conceal dirt and wear.
What makes #8 duck canvas different from lighter canvas?
#8 duck is significantly heavier and more rugged than lighter canvas fabrics, making it ideal for demanding industrial, utility, and heavy sewing applications.
Can Navy Blue #8 duck be used for upholstery?
Absolutely. The heavyweight structure and rich Navy Blue color make this fabric excellent for rustic upholstery, benches, wall coverings, and statement furniture projects.
Is this fabric strong enough for heavy bags?
Yes. #8 cotton duck is commonly used for duffle bags, tool bags, gear bags, and heavy tote bags because of its excellent durability and abrasion resistance.
Can this canvas be treated for fire retardancy?
Yes. FR treatment is available upon request for qualifying commercial, industrial, theatrical, and specialty applications.
Does Navy Blue canvas fade outdoors?
Like most cotton fabrics, prolonged UV exposure may eventually cause fading over time. Outdoor applications should always be tested for specific environmental conditions.
Why is #8 duck called chair duck?
#8 duck is often called chair duck because it has traditionally been used for director’s chair seat and back replacements due to its heavy weight and strength.
Can I order a sample before purchasing?
Yes! Order a fabric sample here to review the color, texture, and weight before placing a larger order.
