Measure more than the empty corridor
Record the hallway width at several points, including radiators, consoles and door trim. Then mark where doors move, where stairs begin and where the floor changes level. The longest rectangle that fits the empty space may still be wrong for the way people move through it. Keep the outline away from hazards and check it with the hallway in ordinary use.
Work out the width
Choose a visible floor border as a design starting point, not a fixed safety rule. If a hallway is 110 cm wide and you want 15 cm of exposed floor on both sides, the target runner width is 110 − 15 − 15 = 80 cm. Repeat the calculation at the narrowest usable section. A console leg or radiator may make the effective width smaller.
Plan the ends deliberately
A runner should have a clear relationship to the entrance and the end of the corridor. Avoid placing an edge directly at a stair transition or beneath a door where it can catch. Mark the proposed ends with floor-safe tape and carry out ordinary tasks: opening the front door, bringing in bags and passing another person. The tape outline should reveal conflicts before the rug arrives.
Thickness includes the pad
Measure the combined rug-and-pad height, not just the listed rug thickness. Test a door through its whole swing; clearance can vary with the floor. A thin flatweave may be useful, but a moving edge is still a problem. Check pad compatibility with the floor finish and make sure no part protrudes into the walking route.
Maintenance in a busy route
Entrances receive grit and moisture, so choose a rug whose care requirements match that use. An indoor runner is not automatically a doormat or an outdoor product. Inspect corners and the surface beneath it regularly. If the setup bunches or slips, address the cause instead of adding another loose layer. Households with mobility needs may require advice tailored to their specific route and floor.
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