What Is AC Rating? A Plain-English Guide Before You Buy Laminate Flooring

What Is AC Rating? A Plain-English Guide Before You Buy Laminate Flooring

You're browsing laminate floors and you keep seeing labels like AC4 or AC5. Nobody explains what they mean. You just want to know if the floor will survive your family, your dog, and whatever chaos comes next.

Here's everything you need to know — in plain English.

What Does AC Stand For?

AC stands for Abrasion Criteria. It's a European standard (EN 13329) that rates how well a laminate floor can withstand everyday wear and tear. The higher the number, the tougher the floor.

The rating is determined by testing the floor's surface against a rotating cylinder with abrasive paper until the surface wears through. The number of rotations it survives determines the AC class.

The AC Rating Scale Explained

AC3 — Light Domestic Use

AC3 is the entry-level rating. It's suitable for low-traffic areas in the home — think a spare bedroom or a rarely-used dining room. If you have kids, pets, or a busy household, AC3 probably isn't the right choice.

AC4 — Heavy Domestic / Light Commercial

AC4 is the sweet spot for most Irish homes. It can handle heavy foot traffic, families with children, and moderate pet activity. It's also suitable for light commercial use like small offices or boutiques. The majority of popular laminate floors at Kidd Flooring carry an AC4 rating — it's the reliable choice for hallways, living rooms, and open-plan spaces.

AC5 — Heavy Domestic / Medium Commercial

AC5 is serious durability. It's rated for heavy commercial use — think busy shops, hotel lobbies, and public buildings — but it's also ideal for the busiest rooms in a home. If you have multiple pets, children who treat the floor as a racetrack, or you simply want to buy once and never think about it again, AC5 is worth the extra investment.

AC6 — Very Heavy Commercial

AC6 is the highest rating available and is designed for extremely high-traffic commercial environments. Some specialist products in the Kidd range carry this rating for commercial projects.

Which AC Rating Do You Actually Need?

Here's a simple way to decide:

• Spare bedroom or study with light use → AC3
• Living room, hallway, or kitchen in a family home → AC4
• Busy hallway, home with multiple pets, or high-traffic open plan → AC5
• Commercial project or rental property → AC5 or AC6

One thing worth knowing: a higher AC rating doesn't just mean more scratch resistance. It also usually means thicker boards, better impact sound reduction, and a more substantial feel underfoot. Going from AC4 to AC5 is often noticeable when you walk on it.

AC Rating vs. Thickness — Are They the Same Thing?

No — and this is a common point of confusion. AC rating measures surface durability. Thickness (8mm, 10mm, 12mm) affects how solid the floor feels and how well it handles subfloor imperfections. You can have a thick floor with a lower AC rating, or a thinner floor with a higher one.

For most homes, pairing a thickness of 10–12mm with an AC4 or AC5 rating gives you the best all-round result.

What About Waterproof Laminate?

AC rating only measures surface wear resistance — it says nothing about water resistance. Some laminate floors, including several in the Kidd Flooring range, carry additional moisture protection (sometimes labelled as "Aqua" technology), allowing them to withstand splashes and spills for up to 24 hours. If you're fitting flooring in a kitchen or bathroom, always check both the AC rating and whether the floor has moisture resistance.

The Bottom Line

For most Irish homes, AC4 is the minimum you should consider — and if your hallway or kitchen sees a lot of action, step up to AC5. It costs a little more, but it's a fraction of the cost of replacing a floor that wasn't built for your lifestyle.

Browse the full range of AC4 and AC5 laminate floors at Kidd Flooring — every product page lists the rating clearly so you always know what you're buying.