40 Hour Property and Building Inspection Practice Test

What are three common materials used for sub floors?

1. Concrete, Plywood, and Particleboard

2. Gypsum, OSB, and Wafer board

3. Planking, Vinyl, and Plywood

4. Planking, Plywood, and Wafer board

The correct answer is: Planking, Plywood, and Wafer board

Plywood is a widely used material for subfloors due to its strength, durability, and ability to support heavy loads while providing a smooth surface for flooring installation. It is often chosen because it is relatively lightweight and easy to work with, making it a preferred option in construction. Planking serves as an alternative, particularly in older construction methods, providing a stable base that can help resist warping and provides effective spacing that enhances the overall structural integrity of the floor system. Wafer board, also known as oriented strand board (OSB), is another common choice for sub floors. It is engineered from wood strands, providing excellent in-plane strength and dimensional stability, making it suitable for a variety of conditions and a cost-effective solution when compared to plywood. These materials combine to offer contractors and builders a reliable foundation that supports various finished flooring options, leading to a well-constructed, durable finished floor.