Hardwood floors in London, Sarnia, and Chatham, ON are renowned for their beauty, durability, and timeless appeal. But what lies beneath those elegant planks plays a crucial role in their longevity and performance. The subfloor provides the essential foundation for your hardwood flooring, ensuring stability, support, and protection from moisture.
Understanding the different types of hardwood floor subfloors is key to making informed decisions that will ensure the success of your flooring project.
Why Subfloors Matter
The subfloor serves as the structural base for your hardwood flooring, providing several critical functions:
- Support and Stability: It provides a solid and level surface to support the weight of the hardwood flooring and foot traffic.
- Moisture Protection: A proper subfloor acts as a barrier against moisture, preventing it from seeping up and damaging the hardwood.
- Sound Insulation: The subfloor can help absorb sound, reducing noise transmission between floors.
- Thermal Insulation: It can contribute to thermal insulation, improving energy efficiency.
Common Types of Hardwood Floor Subfloors
Plywood
Plywood is one of the most common subfloor materials for hardwood flooring. It's made from layers of wood veneer glued together, offering strength, stability, and dimensional stability. Different grades and thicknesses of plywood are available, and choosing the right one depends on the specific requirements of your project.
Oriented Strand Board (OSB):
OSB is another popular subfloor material made from wood strands bonded with resin. It's known for its affordability and strength. However, it's crucial to choose OSB specifically rated for subflooring, as it offers better moisture resistance.
Concrete:
Concrete slabs are a common subfloor in many homes, especially those with slab-on-grade foundations. While concrete provides a solid base, it's essential to address moisture concerns before installing hardwood flooring. Moisture barriers and proper preparation are crucial to prevent damage.
Existing Wood Subfloors:
In some cases, existing wood subfloors can be used as a base for hardwood flooring. However, it's essential to assess their condition and ensure they are level, structurally sound, and free from moisture damage.
Choosing the Right Subfloor for Your Hardwood
Selecting the appropriate subfloor for your hardwood flooring depends on several factors:
- Joist Spacing: The spacing between floor joists influences the required thickness and strength of the subfloor.
- Moisture Levels: Consider the moisture levels in your environment, especially if installing over a concrete slab or in a basement.
- Flooring Type: Different hardwood flooring types may have specific subfloor requirements.
- Budget: Subfloor materials vary in cost. Consider your budget when making your selection.
Preparing the Subfloor
Regardless of the subfloor type, proper preparation is crucial for a successful hardwood flooring installation:
- Leveling: Ensure the subfloor is level to prevent unevenness and squeaking in the finished floor.
- Moisture Mitigation: Address any moisture concerns by installing a moisture barrier and ensuring proper ventilation.
- Cleaning: Thoroughly clean the subfloor to remove debris, dust, and any contaminants that could interfere with the installation.
- Underlayment: Install an appropriate underlayment to provide cushioning, sound insulation, and moisture protection.
Talk to the Flooring Experts wat Sacwal Flooring Centres to Learn About Hardwood & More!
The subfloor is the unsung hero of any hardwood flooring project. By understanding the different types of hardwood floor subfloors and ensuring proper preparation, you can create a stable and supportive foundation for your beautiful new floors. This will contribute to their longevity, performance, and overall beauty for years to come.
Ready to Lay the Groundwork for Your Dream Floor?
Call or visit Sacwal Flooring Centres, to explore our wide selection of hardwood flooring and discuss your subfloor needs. We proudly serve Southwestern Ontario communities, including Chatham, London, and Sarnia. With over 35 years of experience in the flooring industry, our expert team can guide you through the selection process, ensuring you choose the right subfloor and hardwood flooring to transform your vision into reality.

