Rugs are large and hard to send back, and most listings focus on colour and pattern. This guide covers what the US Consumer Product Safety Commission (CPSC) says about rug size categories and flammability labels, and what to check before you order. It covers US rules only. We did not read UK or EU rules for rugs. For measuring your room and doorways, see our guide to buying furniture online.

This guide is based on the public sources listed below. We have not tested any rug or store.

Large and small rugs

Source: CPSC, carpets and rugs FAQ. Last checked: 17 October 2026.

  • A large rug has one dimension over 6 feet and an area over 24 square feet (16 CFR part 1630).
  • A small rug has no side over 6 feet and an area of 24 square feet or less (16 CFR part 1631).
  • Small rugs that fail the flammability test may be sold only if they carry a permanent flammability warning label. Large rugs have no such option.
  • Treated rugs need a "T" mention.

What CPSC tells consumers

  • Look for the "T" label.
  • Keep small rugs that are labeled as failing away from ignition sources.
  • Untreated shag rugs and rugs with polyurethane-foam cushions commonly fail testing.

What to check on a listing

  1. Size category. Check the stated dimensions against the 6-foot and 24-square-foot lines, so you know which rule applies.
  2. The flammability wording. Look for a statement or label photo, and ask the seller if it is missing.
  3. Pile and backing. Shag and foam-cushioned backings are the types CPSC names as commonly failing.
  4. Size for the room. Measure the room and the doorways, and check how the rug is delivered (rolled or folded).
  5. Returns. Ask who pays return shipping for a large rug and whether cut-to-size rugs can be returned.
  6. Recalls. Check cpsc.gov/recalls before you buy.

What we could not confirm

  • Rug size guidance for living rooms (placement rules of thumb are not from an official source) and UK or EU rules.

Sources: US CPSC, carpets and rugs.