What does the AC rating on laminate mean, and which do I need?
AC is an abrasion class, tested to a European standard, and it is the only number on a laminate pack that reliably predicts how the surface will look in three years. What each class is for and what it does not tell you.
- Difficulty
- beginner
- Time
- 12 min
- Read
- 3 min
Short answer
AC is a graded abrasion resistance class, rising from AC1 to AC6, with a matching domestic or commercial use class. For a UK home, AC3 is the sensible minimum for anywhere with real traffic, AC4 is the safe choice for hallways, kitchens and family houses, and AC5 and above is commercial specification you rarely need at home.
Laminate is a printed decor paper protected by a clear melamine wear coat, and the entire life of the floor is the life of that coat. The AC rating measures how it stands up to abrasion under a standardised test, which is why it is the one specification worth comparing directly between products at different prices.
Step by step
- Understand what is being measured.AC classes come from a European standard test that abrades the surface with a loaded abrasive wheel until the decor layer is visibly worn through. Higher class, more revolutions before failure. It is a laboratory comparison, not a warranty of years.
- Read the use class alongside it.Packs usually carry a two-digit use class as well — the twenties are domestic and the thirties commercial, with the second digit indicating light, general or heavy traffic. The two systems track each other and the pack normally shows both.
- Match the class to the room, not the house.A bedroom genuinely can take a lower class than a hall. But laying two grades in one house means two different products, two batches, and a transition. Most people are better off buying one good grade throughout.
- Choose AC3 as an absolute floor for living space.Below that you are into products intended for light domestic use — a spare room, a study that gets walked on twice a day. Anything sold below AC3 for a hallway is being sold optimistically.
- Choose AC4 for the places that actually wear.Hall, landing, kitchen, dining room, and any house with children or dogs. The price difference over AC3 is usually small and the difference in how the floor looks after a few years is not.
- Do not pay for AC5 or AC6 at home.These are commercial and heavy commercial specifications. In a domestic setting the extra abrasion resistance is not the thing that will end the floor's life — moisture at the joints and impact damage will.
- Know what AC does not cover.It says nothing about moisture resistance, impact resistance, dent resistance, joint strength, how the click system holds up, or how convincing the surface texture is. Two AC4 floors at very different prices differ in all of those.
- Check the separate claims that matter to you.Water resistance is a distinct specification and a distinct product family. Impact resistance has its own classification. Joint swelling after water exposure is quoted by better manufacturers. Ask for these separately.
Questions people ask
Does a higher AC rating mean the floor will not scratch?
No. Abrasion and scratching are different. AC measures gradual wear from foot traffic and grit; a single deep scratch from dragging furniture or from grit under a shoe can mark an AC5 floor. Barrier matting at the door does more for scratching than any AC class.
Is AC rating relevant to LVT or engineered wood?
No. LVT is specified by wear layer thickness in millimetres or mils, and engineered wood by its timber lamella thickness. AC is a laminate classification only.
Two floors are both AC4 and one is twice the price. Why?
Board thickness, click system quality, core density and moisture resistance, surface texture and how well it registers with the printed grain, bevel detail, and the length of the warranty. The AC class is one specification among several.