Entryway and hallway runner sizing
Length gets all the attention. The side margin is what people actually notice.
A runner is the easiest rug to buy and the easiest to get subtly wrong. Almost everyone measures the length carefully and then chooses a width by eye, which is exactly backwards.
Width first
Hall width minus 8 to 12 inches
Take the hallway width, subtract 8–12″ in total, and round down to a standard runner width. That leaves 4–6″ of floor on each side.
A 42″ hall wants a 2′6″ runner. A 36″ hall wants 2′6″ as well, at a tighter 3″ per side, or 2′ if you prefer more floor.
| Hallway | Runner | Floor each side |
|---|---|---|
| 32″ | 2′ | 4″ |
| 36″ | 2′6″ | 3″ |
| 42″ | 2′6″ | 6″ |
| 48″ | 3′ | 6″ |
Then length
Leave 4–8″ of bare floor at each end. Standard runner lengths are 6′, 8′, 10′ and 12′, so most halls will not divide neatly — round down rather than up.
For a hall longer than 14′, two runners with a deliberate gap between them look better than one custom length, and each one is far easier to lift and clean.
Door clearance is the thing that ruins runners
Measure the gap under every door the runner passes: front door, closet doors, a powder room door. Interior doors are often hung with less than 3/4″ of clearance.
If the pile plus the pad exceeds that gap, the door drags. It will not merely be annoying — it will wear a visible line across the rug within months. For entries, a flatweave under 1/4″ is the safe range.
Entry mats specifically
The entry rug has a job the hallway runner does not: it takes water, grit and salt off shoes. That argues for a small, dense, dark, washable rug rather than a beautiful one.
The common sizes are 2′×3′ and 3′×5′. A 3′×5′ is long enough that both feet land on it before someone steps onto your floor, which is the entire point.
Pads are not optional here
A runner in a hallway is walked on at speed, often by someone carrying something. Without a pad it creeps, bunches at one end and becomes a genuine trip hazard on hard floors. Use a gripping pad cut about 1″ smaller than the runner on every side.
Hallways are also where an inexpensive rug makes the most sense, because this is the rug that wears out first. See washable versus traditional for what that trade actually costs.
Common questions
How much floor should show on each side of a runner?
Four to six inches on each side. Any wider and the hall reads as unfinished; any narrower and the runner looks like flooring that was cut short.
What width runner do I need for a 36 inch hallway?
A 2 foot 6 inch runner, which leaves about 5 inches of visible floor on each side. A 2 foot runner would leave 8 inches per side, which is too much for a hall this narrow.
How long should a hallway runner be?
Leave 4 to 8 inches of bare floor at each end. A runner that stops well short of the end of a hall draws attention to where it stops, and one that runs into the wall looks jammed in.
Do I need clearance under the front door?
Yes. Measure the gap under the door, which is often only half an inch, and choose a pile that clears it. Otherwise the door will catch every time it opens, and the rug will wear along that line.