Laminate AC Ratings Explained: AC3 vs AC4 vs AC5
An AC rating is a laminate's wear class under the European standard EN 13329: the surface must survive at least 2,000 Taber rotations for AC3, 4,000 for AC4 and 6,000 for AC5 before it shows wear. The US standard, NALFA LF-01, does not use AC classes at all. On the shelf, AC3 planks start at $0.99 per sq ft and AC5 at $2.99; installed on 400 sq ft that is $1,356 to $1,972 for AC3 against $2,116 to $2,956 for AC5. Read 14 October 2026.
Updated 14 October 2026. How we priced this.
AC3, AC4 and AC5: Threshold, Shelf Price, Installed Cost
| Class | Minimum Taber rotations | On the shelf | Plank price | 400 sq ft installed | Suits |
|---|---|---|---|---|---|
| AC3 | 2,000 | FairOaks Carey Lane and Hampstead (Floor & Decor), TrafficMaster (Home Depot) | $0.99 to $1.39 | $1,356 to $1,972 | Bedrooms, offices, dry living areas |
| AC4 | 4,000 | Pergo Outlast+ XL and Home Decorators Collection Vanderbilt Oak (Home Depot), HydroShield Plus (Floor & Decor) | $1.89 to $2.99 | $1,632 to $2,516 | Living rooms, hallways, kitchens, homes with pets |
| AC5 | 6,000 | AquaGuard Performance (Floor & Decor) | $2.99 to $3.99 | $2,116 to $2,956 | Entries and the heaviest home traffic; light commercial |
AC1, AC2 and AC6 are left out: we found no primary source that publishes their thresholds, and retailer blogs disagree with each other. The planks in each row are the ones that set that tier's price in our model; check the AC rating on the product page of the plank you buy.
The US Standard: NALFA LF-01 Does Not Use AC
The North American Laminate Flooring Association's standard, NALFA/ANSI LF-01, certifies four levels and tests more than wear. ANSI's summary of NALFA's white paper says LF-01 does not use the AC classification, although AC ratings are now common in marketing. NALFA's board approved proposed LF-01 updates in May 2026; they are in public review, with no adoption date published.
| LF-01 level | Wear (cycles) | Small-ball impact | Thickness swell | Castor chair (cycles) |
|---|---|---|---|---|
| Residential | 1,500 | > 200 mm | < 18% | 25,000 |
| Light Commercial | 2,000 | > 200 mm | < 16% | 25,000 |
| Commercial | 4,000 | > 350 mm | < 16% | 25,000 |
| Heavy Commercial | 6,000 | > 500 mm | < 12% | 35,000 |
Minimum performance values from LF-01 (2019 publication, table headed LF-01-2018).
AC Classes vs Use Classes
EN 13329 also sorts floors into use classes: 21 to 23 for homes and 31 to 34 for commercial spaces, and a floor must pass every test in a class, not only abrasion. EPLF, the European laminate makers' association, says most laminate sold for homes is classed 32 or 33, commercial classes, which it calls overengineered for domestic use. Its 2024 bulletin gives domestic lifespans of 20 years minimum and 30 on average for class 32, 25 and 35 for class 33, and 30 and 40 for class 34.
What an AC Rating Does Not Tell You
| Question | Does AC answer it? | Check instead |
|---|---|---|
| Will it scratch? | No (NALFA) | The maker's scratch or pet warranty |
| Will it fade? | No (NALFA) | Fade terms in the warranty |
| Will it stain? | No: unrelated to abrasion class (NALFA) | Stain test results or warranty |
| Can it take water? | No | Whether it is sold as water resistant or waterproof, and the water warranty |
| Will it feel solid? | No | Thickness (7mm to 12mm on the planks we priced) and whether a pad is attached |
For most homes the choice is between AC3 and AC4: see AC3 vs AC4 laminate. Price the grade you choose in the laminate flooring cost calculator.
Common Questions
What does the AC rating on laminate mean?
It is the abrasion class from the European standard EN 13329 (current edition EN 13329:2023): how many turns of a Taber abrasion machine the surface survives before it first shows wear. Swiss Krono gives the minimums as 2,000 rotations for AC3, 4,000 for AC4 and 6,000 for AC5.
Does the US use AC ratings for laminate?
Not in its standard. The North American standard, NALFA/ANSI LF-01, does not use the AC classification; it certifies four levels (Residential, Light Commercial, Commercial, Heavy Commercial) on wear, impact, swelling, castor-chair and other tests. Retailers still print AC ratings on US product pages because European makers test to EN 13329.
Is AC4 worth it over AC3?
For living areas, usually. On 400 sq ft, our mid-range AC4 tier costs $276 to $544 more installed than the budget AC3 tier, and the AC4 planks we priced also have an attached pad, which removes the separate underlayment. For a spare bedroom, AC3 is enough.
Does a higher AC rating mean more scratch resistance?
No. NALFA's white paper says a high AC class refers only to wear resistance and does not imply better scratch or colour-fade resistance, and that stain resistance is not related to abrasion class. A floor also looks worn well before the pattern wears through.
Is there an AC6 rating?
Some retailers advertise AC6, but we found no primary source publishing its threshold, so we do not state one. The classes we can source are AC3, AC4 and AC5.