Which is the Best Plywood for Flooring?
June 12, 2025
Table of Contents
When building floors with strength, durability, and longevity, one of the most important decisions you'll make is selecting the best plywood for flooring. Whether you're doing a home renovation, building a gym, or replacing flooring in your bathroom, it's important to choose the right grade, thickness, and type of plywood for flooring, which can have a huge impact on performance and longevity. At Royale Touche, we know that every quality floor will have a strong foundation. You can read the entire guide to consider what is the best plywood to use for flooring, and what to think about it according to how the room will be used, and how much traffic and moisture it will receive, and how it will be laid down.
What is the Best Plywood to Use for Flooring?
Flooring can be one of the highest impact surfaces we use in a space be it a house, office, or commercial space. Therefore, getting the right plywood when it comes to durability, load bearing strength, and moisture, termites, and or warping is essential.
Let's find out which plywood will be the best for each flooring scenario, and more importantly, why?
MR Grade Plywood – For Use in dry interior spaces
Where is it used
Living rooms, bedrooms, dining rooms, family rooms
Why is it the best
Moisture-resistant Plywood is bonded together using urea-formaldehyde resin, and is suited for areas with limited exposure to moisture. It deals with everyday foot traffic perfectly adequately, and is economical.
Recommended Thickness
12mm to 18mm
Marine Grade Plywood – For use in wet zones
Where is it used
Bathrooms, Kitchens, Basements, Laundry
Why is it the best
Marine plywood, often described as waterproof, contains phenol-formaldehyde resin and rather dense hardwood cores to resist water, fungus, and delamination. This is by far the most important ply when it comes to flooring applications in water wet and leak-prone zones.
Recommended Thickness
16mm to 19mm
Calibrated Plywood - For use in heavy load zones
Where is it used
Home gyms, fitness centres, retail showrooms, storage
Why is it the best
Calibrated plywood is made using advanced press technology allowing for evenly thinned ply; superior core treatment; and quality mechanical strength. To ensure minimum flex, it is the best ply manufacturer to use for floors subjected to weight, pressure, and sustained impact.
Recommended Thickness
18mm to 25mm
BWR Grade Plywood - For use in subflooring applications
Where is it used
Underneath tiles, hardwood floors, vinyl, or laminate panels
Why is it the best
Every subfloor application should require moisture resistance, with CB (congestive build) capability that provides a structurally sound flooring underlay. Boiling Water Resistant Plywood (BWR), bonded with phenolic resins, will provide a strong and stable base, and remain intact during fluctuations in humidity and temperature.
Recommended Thickness
18mm and above
Why is plywood a popular option for flooring?
Plywood for flooring has developed a reputation as a reliable product because of all the benefits it offers:
Strength and durability
It has a multi-layered nature with vertical fibres which offer high structural integrity.
Very Cost-Effective
It is an exceptional value compared to hardwood or solid planks.
Versatility
It can be used for subflooring, or gym floors, or put under ceramic tiles in a bathroom.
Moisture resistance
Marine-grade and waterproof options will meet with areas of high moisture.
Ease of installation
Plywood sheets are easy to cut and fold, lay down, and attach, and you will save on installation labor.
Top considerations for Choosing the Best Ply for Flooring Next, in order to choose which is the best plywood for flooring, you must consider the following:
Grade and quality
Plywood is graded A to D depending on the quality of the face and back veneers. For flooring, use BWR (Boiling Water Resistant) Plywood or Marine Grade Plywood, especially in wet or moist areas.
Thickness
The standard thickness range for plywood for flooring is between 12 mm to 25 mm, depending on the type of floor (e.g., Light timber floor, Heavy timber floor) and the load it is required to carry.
Core type
Look for hardwood core plywood, due to their better load carrying capacity and durability.
Finish & Coating
Laminated plywood or moisture-resistant coatings are attractive options if there is a potential for water exposure or high amounts of foot traffic.
Types of Plywood Suitable for Flooring Applications
Let’s look at some good plywood types for various internal flooring areas:
General Home Flooring
For standard rooms like living rooms, bedrooms, dining rooms and typical family rooms, Moisture resistant (MR) Grade plywood is the best option. Strong enough, low-cost and handles standard foot traffic fairly well.
Bathroom Flooring
Bathrooms are wet zones, for which Marine Grade Plywood is a viable option. It is specially treated for moisture, fungi and delamination, making it the best ply for flooring in a wet area.
Gym Flooring
Gyms require a flooring that can take heavy loads, both from the equipment and from the impact. The best plywood for the gym floor must be calibrated or high-density hardwood core plywood that will offer the best strength and minimal flexing.
Subfloor
Subfloors are the basis for final flooring materials (tiles, wood, vinyl). The best option for you should be Boiling Water Resistant (BWR) or Commercial Grade Plywood at a thickness of 18mm to 25mm to ensure a flat, strong base that the final floor can rest on.
Benefits and Drawbacks of Plywood Flooring
Benefits
- More durable than particle board or MDF
- Surface is uniform and load-bearing capacity is equal
- Some moisture-resistant options
- Easy to move, cut, and install
- Available in different grades and thicknesses
Drawbacks
- Has some water resistance but not waterproof unless Marine Grade
- Cheaper products may have voids or weak cores
- Requires surface treatment for finish flooring
- May delaminate if exposed to an abundance of water over time
Why Choose Royale Touche Plywood for Flooring?
Strength Bonding
Our plywood is little pressed using the latest technology with resin giving it healthy stability and strong adhesion.
Calibration
Our plywood sheets are precisely sanded. Every sheet is leveled, excellent for making sure the flooring sits evenly.
Moisture & termite resistant
To help protect for a longer life and easier maintenance.
Environmentally friendly
Manufactured with sustainable timber and certified materials.
Strength-to-weight ratio
Makes it suitable for both subfloor and final flooring applications.
Conclusion
Choosing the right plywood for flooring is an important first step that will give you a longer-lasting, easy, comfortable and aesthetically pleasing interior. Whether for home, commercial, gyms or even bathrooms, there's plenty of best plywood for flooring solutions for your requirements. Royale Touche, one of the best plywood brand in India, offers plywood for flooring that provides a flexible avenue for your unique designs at home, business, gym or bathroom to inspire you and quality with sustainability. With an array of plywood grades on offer, you are sure to get the best ply for flooring for every required space, be it with heavy load bearing, water resistance or high aesthetic values.
Invest in the long-term, for all your flooring needs with Royale Touche, where design meets durability.
Frequently Asked Questions
What thickness of plywood can we use for flooring?
Generally, 12mm to 25mm is commonly used. For subfloors, you should use 18mm and use 12mm for overlay/secondary support. Heavier areas of traffic and or bigger equipment should have thicker sheets of about 18mm to 19mm.
What plywood to use for bathroom flooring?
Marine Grade Plywood is good for the bathroom floor because it doesn't twist, swell or warp in moisture.
What is the best plywood for a gym floor?
Calibrated or high-density hardwood core plywood is ideal for gym floor applications where weights, impact, and movement will happen.
Can we use 12mm plywood for flooring?
Yes, the use of 12mm plywood is acceptable; however, it will most likely only be suitable for light foot traffic with 12mm being used as just a secondary support layer for the finished flooring, for main flooring and subflooring situations, thicker thickness of 18mm or 19mm will be better.
What type of plywood is used for the subfloor?
Use BWR (Boiling Water Resistant) Grade Plywood 18mm or thicker is recommended. This helps stabilize the final flooring and has a high capacity for a negative damp capillary action while providing strength to support the final floor and moisture should it find its way to the plywood.
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