Published 2026-08-12 · Updated August 12, 2026
Quick answer: Outside, a mat scrapes grit off shoes. Inside, a mat absorbs what the outside one missed. A covered porch can run one printed mat outside and be done. An uncovered doorstep in a wet climate should keep the printed mat inside, where it stays dry and keeps its colour.
"Do doormats go inside or outside" is one of the most-asked questions about one of the least-discussed objects in a house, and the honest answer is that the question contains a hidden assumption — that there is one mat. Most entrances that work well have two, and they are doing two different jobs.
The two jobs
Scraping happens outside. Grit, mud, leaves, road salt, grass clippings — the coarse material that would otherwise be tracked across a floor. Absorbing happens inside. Moisture, the fine dust that survived the scrape, whatever a dog's paws are carrying. A single mat can do a passable job of both. Two mats do both properly, and the inside one does far more work than people expect.
Start with one question: is the door covered?
Everything follows from whether the entrance has a porch roof, a deep recess, a storm door or an awning over it.
- Covered entrance. A printed mat can live outside happily. It is shaded from direct sun, sheltered from standing rain, and the print holds its colour. This is the best case, and it is why porch-front houses can run one good-looking mat and stop thinking about it.
- Uncovered entrance. Sun fades print and standing water is hard on any flat mat. The honest advice here is to put the printed design inside the door, where it is seen by everyone who actually comes in, and let something plain and coarse take the beating outside. You lose nothing — guests see the good mat at the moment they step over the threshold, not from the driveway.
The apartment case
Interior corridors change the maths entirely. There is no weather, no sun and no mud — just corridor dust and the occasional wet umbrella. One mat outside the door is enough, and it is doing decorative work as much as practical work, because in a corridor of identical doors it is the only thing that says which one is yours. X-Small at 16"×24" is usually the right size; the doormat size guide has the rest.
Door swing decides more than you think
A door that opens inward will sweep across an interior mat every single time. If clearance is tight, either the mat goes outside or it sits far enough back that the door clears it entirely — and a mat pushed back that far stops catching anything at the threshold, which defeats it. Doors that open outward do not have this problem and can take an interior mat right up against the frame. Check the swing before deciding, not after.
Climate, briefly and honestly
Hot, dry, sunny regions are hardest on colour and easiest on structure — shade matters more than drainage. Cold, wet regions are the reverse: the mat survives the light but sits in slush and salt for months. In the second case an interior mat is not a luxury, it is the thing that keeps the floor by the door from being permanently grey. In both cases, having a second mat means each one does half the work and lasts longer than one mat doing all of it.
Printed flat mats: what they are good at
The mats in the doormat collection are flat-print with a non-slip backing. That construction is excellent at showing a design sharply, staying put on a hard floor and storing flat — a stack of four is about an inch tall, which is what makes a seasonal rotation practical instead of a storage problem. It is not a deep bristle brush, and it does not pretend to be. If your entrance genuinely needs an aggressive boot-scraper, buy a boot-scraper and put the printed mat behind it. The flat print explainer covers what the construction does and does not do.
The mistake almost everyone makes
The common error is putting the good mat where it takes the most damage and nothing where it would do the most good. The front door of a suburban house often opens onto a covered porch and gets used twice a week; the garage door gets used four times a day and has bare concrete in front of it. The printed mat goes on the front porch, where it is admired, and the garage door — which is where every bag of shopping, every muddy boot and every bin trip actually enters — gets nothing. Swap the priority and the floors inside change within a month.
How many mats a house actually needs
Counted honestly, most houses need three and own one. The front door takes the mat guests see. The back or garage door takes the one that does the most work, because that is the door the household itself uses forty times a week carrying shopping and bins. And wherever the busier of those two doors is, an interior mat behind it earns its place within a fortnight.
The exception is genuine: a small flat with one door onto an interior corridor needs exactly one mat, and adding more is decorating for its own sake. Scale the answer to the number of doors people actually walk through, not to the size of the house.
The two-mat setup, in one line
Plain and coarse outside, printed and personal inside — or, if the porch is covered, printed outside and nothing else needed. For the mudroom version of the same problem, where boots and dogs arrive together, see the mudroom rug guide.