Solid Wood Flooring Thickness & Width

When choosing solid wood flooring, the thickness and width of the boards can have a major impact on the floor’s appearance, durability, installation, and overall feel within the room. While colour and finish are often the first things homeowners focus on, board dimensions are equally important when selecting the right floor for your home.

Solid wood flooring is known for its strong construction and authentic hardwood feel. Unlike thinner flooring alternatives, real wood boards provide excellent durability, long-term performance, and the ability to be restored multiple times throughout their lifespan.

Understanding the differences between board thicknesses and widths will help you choose the right flooring for your room size, interior style, and installation requirements.

Solid Wood Flooring Thickness Explained

Solid wood flooring is typically available in thicknesses ranging from approximately 10mm to 20mm, depending on the wood species, board style, and installation method.

Because the boards are manufactured entirely from natural hardwood timber, thicker flooring offers exceptional structural strength and long-term durability.

Why Thickness Matters

The thickness of a solid wood floor affects:

• Durability
• Lifespan
• Stability
• Sanding potential
• Installation compatibility
• Feel underfoot

Thicker boards are generally more robust and capable of withstanding years of heavy use. They also allow the floor to be sanded and refinished multiple times throughout its life.

Benefits of Thicker Solid Wood Flooring

Increased Lifespan

One of the biggest advantages of thicker solid wood flooring is its ability to last for decades. The additional hardwood material helps the floor maintain its strength and structure even in busy households.

Sanding & Refinishing

Thicker boards can normally be sanded and refinished several times. This allows scratches, scuffs, and surface wear to be removed without replacing the flooring itself.

For many homeowners, this renewable quality is one of the main reasons solid wood flooring remains such a popular long-term investment.

Stronger Feel Underfoot

Solid wood flooring naturally feels substantial underfoot, but thicker boards can further enhance this by providing added stability and a more premium feel throughout the room.

Choosing the Right Thickness

Although thicker flooring offers durability benefits, choosing the correct thickness also depends on the room and existing floor levels.

Factors to consider include:

• Existing flooring heights
• Door clearances
• Room transitions
• Subfloor type
• Installation method
• Renovation requirements

In some situations, a thinner board may be more suitable to help maintain a smooth transition between rooms and avoid noticeable height differences.

This can be especially important when replacing older flooring or matching surrounding floor levels within the property.

Common Solid Wood Flooring Thicknesses

10mm–14mm Solid Wood Flooring

• Lower profile flooring option
• Suitable where floor height is restricted
• Easier room-to-room transitions
• Still offers real hardwood durability

18mm–20mm Solid Wood Flooring

• Traditional solid wood thickness
• Excellent durability and lifespan
• Greater sanding potential
• Popular in premium and period properties

Solid Wood Flooring Width Explained

Board width has a significant influence on the final appearance of the floor and the overall style of the room.

Solid wood flooring is commonly available in widths ranging from approximately 120mm to 190mm, although both wider and narrower options are available depending on the collection.

How Board Width Affects Room Appearance

The width of the flooring boards can subtly influence how spacious or balanced a room feels.

Narrower Boards

Narrower planks are often associated with more traditional flooring styles and can create additional visual detail across the floor.

They work particularly well in:

• Smaller rooms
• Traditional interiors
• Cottage-style homes
• Hallways and compact spaces

Narrower boards can also help create the illusion of a larger room by increasing the number of visible planks across the floor area.

Wider Boards

Wide plank solid wood flooring creates a more open and contemporary appearance with fewer visible joins across the room.

Wide boards are especially popular in:

• Open-plan spaces
• Large living areas
• Modern interiors
• Luxury homes

Wider planks also help showcase the natural grain and character of the timber more prominently.

Pack Coverage & Board Width

Board width also influences how much flooring coverage is provided per pack.

Wider boards typically cover larger areas more quickly during installation, while narrower boards create more plank detail and variation across the floor.

Regardless of width, all solid wood flooring offers the same authentic hardwood construction and natural character.

Wide Plank Solid Wood Flooring

Wide plank flooring has become increasingly popular in modern interior design due to its clean and luxurious appearance.

Benefits of Wide Plank Flooring

• Creates a more spacious appearance
• Enhances natural wood grain visibility
• Provides a contemporary finish
• Reduces visible joins
• Adds premium visual impact

Because timber is a natural material, wider boards may experience slightly more natural expansion and contraction caused by temperature and humidity changes. Professional installation is therefore strongly recommended.

Choosing the Right Width & Thickness

The ideal board dimensions will depend on:

• Room size
• Interior style
• Existing floor levels
• Desired appearance
• Budget
• Installation requirements

Some homeowners prefer the traditional appearance of narrower boards, while others favour the clean, modern look of wide plank flooring. Likewise, thicker boards may provide additional lifespan benefits, while thinner boards may better suit certain renovation projects.

There is no single “best” option — the right choice depends entirely on your room, design preference, and installation requirements.