
Basketball floors are typically made of maple hardwood, which is chosen for its hardness, tight grain, and light colour. The flooring is usually installed by professionals, who follow a process of acclimation, nailing, sanding, sealing, and painting. The acclimation process is crucial as it allows the maple to absorb moisture and adjust to the environment, preventing the floor from buckling due to changes in humidity. After acclimation, the maple is nailed to the subfloor, leaving expansion rows to account for future fluctuations in humidity. The floor is then sanded multiple times until smooth, sealed with two coats of finish, and finally painted with line markings and logos. While hardwood flooring is the traditional choice, other options such as synthetic flooring or rubber flooring are also available, especially for multi-use facilities or outdoor courts.
| Characteristics | Values |
|---|---|
| Material | Hard maple |
| Source | Upper Midwest (Wisconsin and Michigan) |
| Flooring companies | Horner, Robbins, and Connor Sports Flooring |
| Flooring thickness | Thicker than 3/4 of an inch |
| Cushioning | Yes (optional) |
| Subfloor | Yes |
| Installation technique | Puzzle-like pattern across the subfloor |
| Installation time | 5-10 days |
| Installation tools | Nail guns and sledgehammers |
| Sanding | Coarse, medium, and fine sandpaper |
| Number of seal coats | 2 |
| Seal coat drying time | 24 hours |
| Painting | Yes |
| Maintenance | Refinishing and protective covering |
| Multi-purpose flooring | Yes |
| Multi-purpose flooring options | Omnisports, PolyTurf Pad and Pour, and LinoSport |
| Single-purpose flooring | ClutchCourt |
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What You'll Learn

Choosing the right flooring
However, if the court needs to accommodate multiple sports or activities, a more versatile sports surface may be a better choice. In such cases, synthetic flooring options like Omnisports, PolyTurf Pad and Pour, or LinoSport are worth considering. These surfaces typically require less effort to transition between different activities and offer durability and ease of maintenance.
Another critical factor is the location of the basketball court. For outdoor courts, shock-absorbing plastic tiles like VersaCourt Court Tile are a popular choice as they provide excellent drainage, quick drying, and resistance to cracking. Conversely, indoor basketball courts may prioritize aesthetics and performance, with options for custom designs, cushioning systems, and proprietary finishes to enhance the playing experience.
It is also essential to keep maintenance and budget in mind when choosing basketball court flooring. Maple hardwood courts, for example, require regular refinishing and protective coverings, which can increase long-term costs. Synthetic flooring options may offer more low-maintenance and cost-effective solutions, depending on the specific product and usage.
Lastly, the size of the basketball court should be considered. For smaller spaces, a half court or customizable court size can be more suitable. Precise measurements and planning are crucial to ensure the best outcome, especially when installing in-ground hoop systems or marking out lines for various sports.
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Preparing the subfloor
Once the maple has properly acclimated, the process of nailing it down can begin. This is a labour-intensive task, with workers using nail guns and sledgehammers to insert nails every 12 inches. Leaving gaps in the floor, known as expansion rows, is necessary to accommodate the expansion and contraction of the wood due to changes in humidity. These gaps will close up over time.
After nailing, the floor is sanded multiple times with different grits of sandpaper until it is smooth and even. This process usually takes around 4 to 5 days and creates a dusty environment. Following the sanding, the floor is cleaned and prepared for the application of seal coats. Two coats of seal are applied, with a 24-hour drying time between each coat.
Once the final coat of seal has dried, the floor is ready for painting, marking the completion of the subfloor preparation process.
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Installing the maple
Maple hardwood is the traditional surface for basketball courts. Hard maple, or acer saccharum, is the type of maple used in 29 out of 30 NBA hardwood courts. This type of maple is sourced from the Upper Midwest, specifically Wisconsin and Michigan, as this is where the greatest density of the species is grown. Hard maple is selected because it is harder than other hardwoods, has a tighter grain, and is light in colour. The tight grain ensures the hardness of the maple, giving it the durability needed to withstand NBA seasons. The lightness of the wood provides contrast against the ball, making it easier for players to discern its movement, and helps to brighten arenas.
When installing the maple, the crew will lay out the maple in a puzzle-like pattern across the subfloor. This allows the maple to evenly absorb any moisture in the air and acclimate to its environment. Acclimating means that the maple will adapt to its environment by absorbing a certain amount of moisture. Each area has a certain acclimation level that the maple must meet before nailing can begin. This ensures that the maple is installed properly, leaving enough room for fluctuations in humidity. As humidity levels change, wood expands and contracts. Therefore, the maple must be allowed to absorb the proper amount of moisture to prevent the floor from buckling.
Once the maple is acclimated, the crew will nail the maple. This is done with nail guns and sledgehammers, with a nail inserted every 12 inches. After nailing, the floor is sanded three times with different grades of sandpaper—coarse, medium, and fine—until it is smooth and even. This process takes around 4-5 days. The floor is then cleaned and prepared for the seal coats. Two coats of seal are applied to the floor, with 24 hours of dry time between coats.
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Finishing the floor
Once the sanding is complete, the floor is cleaned and prepared for the application of seal coats. Two coats of seal are applied, with a 24-hour drying time between each coat. After the final coat of seal dries, the floor is ready for painting.
The painting process involves applying a finish coat of high-gloss polyurethane, which provides the necessary grip for players. This finish coat is reapplied every off-season to ensure the floor's performance and traction. Additionally, center-court logos, team names, and other markings are painted onto the floor.
For NBA courts, the finish coat and paint are applied over stained or painted floors, which can include unique designs such as mountain scenes or cityscapes. The staining and painting process allows for customization and personalization of the basketball court.
Finally, it is recommended to purchase a protective covering for the basketball floor to reduce wear and tear and extend its lifespan, especially if the floor is made of maple hardwood, which requires regular refinishing.
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Maintenance and protection
Daily and Regular Maintenance:
- Sweep the floor daily with a properly treated dust mop to remove dust, grit, and other abrasive particles.
- Immediately wipe up any spills or moisture on the floor.
- Remove marks with an approved floor cleaner compatible with the floor's finish, using a non-abrasive soft cloth or dust mop.
- Keep water off the floor surface, especially during inclement weather and at exterior doorways.
- Ensure the heating, ventilating, and air conditioning systems are functioning properly and maintain indoor relative humidity between 35-50%.
- Never use tape on a wood gym floor, as wood is naturally porous and can absorb moisture, leading to expansion and potential damage.
- At least once a month, perform a deeper clean using manufacturer-recommended products and procedures to avoid damaging the floor or voiding the warranty.
- Recoat the floor once a year to restore the finish, remove scratches, and ensure a safer surface with the right balance of slide and traction for athletes.
Long-Term Maintenance:
- Create a checklist of maintenance tasks and how often they need to be performed to stay organized and ensure nothing is overlooked.
- Consult with the installer or manufacturer of the floor for specific instructions and recommendations.
- Consider enrolling in a gym floor maintenance program offered by companies like Sports Floors, Inc., which can provide coating products, touch-up paint, and repairs.
- Reapply the final finish coat, typically a high-gloss polyurethane, every off-season to maintain grip and traction for athletes.
- If the floor needs to accommodate multiple sports or activities, consider a resilient sports surface that requires less maintenance and can transition more easily between activities.
By following these maintenance and protection guidelines, basketball floors can be kept in optimal condition, providing a safe and reliable surface for athletes to perform at their best.
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Frequently asked questions
The most popular surfacing option for basketball courts is hardwood flooring, typically made from maple. This is because it provides an optimal surface for competitive play. Maple is a tight-grained, hard wood that is durable and provides good contrast against the ball.
First, the maple wood is laid out in a puzzle-like pattern across the subfloor. The wood is then left to acclimate to the environment, which can take 5-10 days. After this, the wood is nailed down with nail guns and sledgehammers. The floor is then sanded with coarse, medium, and fine sandpaper, before being sealed with two coats of sealant. Finally, the floor is painted.
A full-size basketball court is 28m x 15m (420sqm), which is usually too large to fit in a backyard. A half-court can be customised to fit your space, with sizes ranging from 4m x 6m (24sqm) to 15m x 11m (165sqm).
You should consider whether the court needs to accommodate other sports and activities. If so, a resilient sports surface may be the best option. You should also consider the ongoing maintenance costs of the flooring. If the court is outdoors, you may want to install a ball return system to save time during practice.


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