Choosing new hardwood flooring involves many decisions, and one of the most critical technical specifications is thickness. The thickness of your flooring directly impacts its durability, longevity, and suitability for different areas of your home. Here's what you need to know to make the right choice.
First, it's important to distinguish between the two main types: solid and engineered hardwood.
Solid Hardwood Flooring Thickness
Solid hardwood is a single piece of wood. Its thickness is fairly standard. You will typically find it available in two options: a thinner profile of 5/16 inch (approximately 8mm) and the industry standard of 3/4 inch (approximately 19mm) . The 3/4-inch option is by far the most popular because it is exceptionally durable and, most importantly, can be sanded and refinished many times over its very long lifespan .
Engineered Hardwood Flooring Thickness
Engineered hardwood is a layered product with a real wood veneer on top. Its total thickness usually ranges from 3/8 inch (10mm) to 5/8 inch (15mm) . However, the total thickness is not the only number to watch. The thickness of the top wear layer-the real wood on the surface-is what matters for refinishing. This wear layer typically ranges from 1.2mm to 6mm . A thicker wear layer (3mm or more) means the floor can be lightly sanded and refinished once or twice, extending its life .
So, Which Thickness Should You Choose?
For high-traffic areas like living rooms and hallways where you might want to refinish the floor in the future, a thicker product is best. For solid wood, choose the standard 3/4-inch . For engineered wood in these areas, look for a total thickness of at least 5/8 inch (15mm) with a thick wear layer of 3mm to 6mm .
Thinner options are useful for renovations where you need to match existing floor heights, or for areas like basements where the stability of thinner engineered wood is an advantage . Ultimately, the right thickness balances your budget, your subfloor conditions, and how long you plan to stay in your home.
