The linear amount of fabric used to create a curtain
A ten foot
wide curtain with 0% fullness (aka flatsewn
) would use 10' of goods
A ten foot wide curtain with 50% fullness would use 15' of goods. Used for most theatrical draperies.
A ten foot wide curtain with 100% fullness would use 20' of goods. Because of cost and weight, usually reserved only for main curtains and travelers.
for a good demonstration.