Canvas is essentially a heavy duty Muslin. Used for ground cloths since the thicker fabric is more resistant to tears. This natural version has an off-white, very light beige look to it. A small amount of tiny darker spots is typical of Natural Canvas. Sometimes referred to as Duck Cloth.
Sold by the linear yard
Since this fabric is not flame retardant, be advised it can shrink ~10% when applying paint/FR. We recommend using a paint frame, or purchasing pre-treated FR fabric.