Sourced guides to quilt sizes, backing, binding and fabric, with the arithmetic checked against our calculators.
A twin quilt is 63–70 × 86–90 in and a queen 84–90 × 92–108 in. Sourced sizes for every bed, twin to California king, with the drop behind each.
Fat quarter size is 18 × 21 to 18 × 22 in. How many squares and strips fat quarters cut, with the math shown, plus fat eighth size and the quarter yard.
Four fat quarters make one yard, by area. See the math, a yards-to-fat-quarters chart, and the cut sizes where four fat quarters give fewer pieces than a yard.
How wide to cut quilt binding: 2 1/4 or 2 1/2 in. By our reading, both finish about 1/4 in at a 1/4 in seam. Binding width chart for wider bands.
Quilt batting sizes, crib to king, from three makers' specs, and why three of four common queen quilt sizes need a king batting or a roll at 4 in per side.