Our vinyl is measured by the yard (1 yard = 3 feet = 90 cm). Our roll width is about 54”. This means that when you buy a yard of vinyl you’re getting 1 yard x 54”. The usable length and width may be 1-2 inches less than the full length and width. It’s always better to be on the safe side when purchasing vinyl for upholstery. Generally speaking, we cover two chair seats with one yard of vinyl and seven chair seats with 3 yards of vinyl. Ultimately it depends on the size of the pattern and minimizing the waste. We recommend requesting a sample prior to ordering any upholstery product.