Canvas Fabric Product Guide

Canvas, also known as cotton duck, comes in a variety of weights. Sometimes it’s measured in ounces, or it can be given a number that represents the weight.

Numbered ducks are often used for more heavy duty applications, like tents, tarps, heavy work clothes, drop cloths, and artist’s canvases.

If a canvas just has a weight and not a number, that means it’s a lighter weight single fill duck, which are popular for bags, crafts, slipcovers, liners, jackets, and much more. They’re more flexible and also come in different colors.

Numbered ducks range from #1 to #12. The lower the number, the heavier it is. A #1 canvas is 27 oz per square yard and #12 is 11.5 oz. Single fill ducks are generally lighter weight and more flexible, ranging from 7 oz to 12 oz.

Canvas Fabric Product Spotlight Video


If a canvas just has a weight and not a number, which means it’s a single fill duck. Single fill refers to the way it is woven.

The warp yarns run vertically and the weft yarn is woven between them, horizontally. Single fill ducks just have 1 weft yarn and numbered ducks have 2, making them stronger and stiffer.

Natural Canvas

Most canvas is left unbleached and undyed. It has a natural color and may have dark specs, which give natural canvas a characteristic rustic look.

Dyed Canvas

Dyed Canvas comes in white and a variety of other colors from muted to bright.

Primed Canvas

You can also get primed canvas, which is natural canvas coated with acrylic gesso on one side. It is commonly used for painting on because it won’t absorb the paint like natural canvas will.

Check out our selection of canvas fabric!

Questions & Comments

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I need a washable duck for slip covers,any suggestion?
A shopper on Dec 30, 2017
BEST ANSWER: The natural ducks or any of the 9.3 oz dyed canvas can be washed, but the fabric will shrink. Make sure to pre-wash the fabric in the same way you plan on washing the slipcovers in the future.
What weight canvas should be used for outdoor chairs seats and backs? These would be fastened to the chairs using grommets and cords, tied around two parallel elements of the chair like an old-fashioned corset.
A shopper on Aug 6, 2018
BEST ANSWER: The #8 or #10 would likely work for your project.
What weight and type duck is the best choice for paint drop cloths?
Joy R on Jul 9, 2018
BEST ANSWER: The 10 oz or 12 oz single fill ducks would work.
Which canvas was used in the olden days for floor cloths? What would you recommend for sturdy long-lasting painted/stained floor cloths?
A shopper on Mar 23, 2019
BEST ANSWER: We suggest #4 or #8 Natural Cotton Duck Fabric for floor cloths. #4 is the heavier of the two.
#4 Natural Cotton Duck Fabric
#4 Natural Cotton Duck Fabric
#8 Natural Cotton Duck Fabric
#8 Natural Cotton Duck Fabric
is there a chart for canvas thickness? I am working on a shoe project that requires a gap for canvas material. I haven't decided what weight to use.
A shopper on Feb 14, 2019
BEST ANSWER: We don't know of a chart for thickness so we suggest getting a sample. The thickness won't be more than 1/16" for any of the weights we carry.
Will a 9.3 colored canvas bleed if I use it as contrast piping on white slipcovers?
A shopper on Jul 10, 2018
BEST ANSWER: I happened to have just washed the navy canvas along with some lighter fabric. There was no bleeding at all, but we'd still suggest testing it out with smaller pieces of the white and color canvas to be sure. If there's no problems, pre-wash the two colors separately because the first wash is the most likely to cause bleeding.
Odd question. I read or heard somewhere that you can hand embroider on a lightweight duck canvas. Is this true? It's to be used for embroidery hoop 'sayings' and quotes etc., If possible, what weight is recommended? The linen option is pricey and the packaged things at joanns is crazy rough, more like cross stitch. I'm learning redwork and basic stitches but now would like to do a nice sampler. Been using muslin.....Thanks!
joyce b on Jul 9, 2018
BEST ANSWER: Yes, you can hand embroider lightweight canvas. The 7 oz is our lightest weight and would be the best. We suggest ordering a sample if you want to make sure it will work for you.
63" Single Fill 7 Oz Duck Fabric
Would this work for porch curtains to block afternoon sun?
A shopper on Jun 2, 2018
BEST ANSWER: Canvas will block sun, but this fabric isn't suitable for outdoor use because it isn't water repellant. Sunbrella canvas would be a good choice:
When painting with artists acrylic paint, and stretching your own canvas over a frame, what is the best canvas to use?
A shopper on Jun 4, 2019