How to size table runners
Measure the surface, then the overhang
Table runner length = table length + 12 to 24″ total drop (6–12″ per end). Standard widths: 13″ casual, 15″ standard, 18″+ formal. The runner should be no more than 1/3 the table's width — wider and it competes with placemats.
Standard sizes vs. your actual surface
Manufactured "standard" sizes assume textbook measurements. Older homes, custom furniture, and non-standard windows often deviate by 1–3″. If the measurement falls between two stock sizes, choose the larger; it's easier to hem or tuck excess fabric than to add length you don't have.
Mounting and clearance
On long tables, runners can stop short of the ends (centerpiece runners) or drape generously past them (formal style). Runners with hemmed edges hold up better than fringed ones, which catch on tableware.
Common mistakes
- Measuring once. Surfaces are rarely perfectly square; take the smallest of three measurements.
- Forgetting shrinkage. Cotton items can lose 3–5% on the first wash.
- Ignoring drape. Heavier fabrics need an extra inch or two to hang correctly.