SKU# 38UL
3/8" (9MM) 4X8 INT UNDERLAYMENT PLYWOOD
3/8" (9MM) 4X8 INT UNDERLAYMENT3/8-in (9mm) 4x8 Interior Underlayment Plywood
The 3/8-in (9mm) 4x8 interior underlayment plywood is a high quality wood panel specifically engineered to provide a smooth, consistent surface for finished flooring installations. This panel is typically manufactured from durable softwood species, providing a balanced combination of flexibility and resistance to surface indentations. The primary usage of this underlayment is to act as a leveling layer over structural subfloors, ensuring that luxury vinyl, tile, or carpet lays perfectly flat.
At GrahamLumber.com, we offer a massive selection of online building products to meet your renovation needs. This unfinished plywood is a staple for those seeking a high-quality surface for flooring prep. As your trusted local building supplies store, AW Graham Lumber provides a comprehensive product catalog at home of dirt cheap prices! We invite you to browse all building products or sign up for an account today. Located in Flemingsburg, KY, we are your one-stop shop for high-quality unfinish plywood and renovation supplies. For availability or custom quotes, please contact us. We proudly serve the Kentucky region as well as surrounding Ohio, West Virginia, and Indiana regions.
At GrahamLumber.com, we offer a massive selection of online building products to meet your renovation needs. This unfinished plywood is a staple for those seeking a high-quality surface for flooring prep. As your trusted local building supplies store, AW Graham Lumber provides a comprehensive product catalog at home of dirt cheap prices! We invite you to browse all building products or sign up for an account today. Located in Flemingsburg, KY, we are your one-stop shop for high-quality unfinish plywood and renovation supplies. For availability or custom quotes, please contact us. We proudly serve the Kentucky region as well as surrounding Ohio, West Virginia, and Indiana regions.
This Interior Underlayment Plywood Features
- 3/8-in (9mm) thickness provides a stable yet lightweight leveling layer.
- Standard 4x8 sheet size for wide project coverage.
- Interior grade adhesive for superior bonding in climate-controlled spaces.
- Species advantage: Smooth surface reduces telegraphing through thin flooring.
- Consistent Janka hardness helps resist dents from heavy furniture.
- Excellent dimensional stability to prevent shifting or swelling.
- Ideal for luxury vinyl tile (LVT), carpet, and sheet vinyl underlayment.
- Can be used for cabinet backs, drawer bottoms, and craft applications.
- Easy to cut and install with standard woodworking tools and fasteners.
- Uniform texture ensures a high-quality base for professional floor finishing.
Product Specifications
| SKU | 38UL |
| Dimension (Size) | 4x8 |
| Thickness | 3/8-in (9mm) |
| Wood Specie | Softwood Blend |
| Janka Hardness Rating | Approx. 660 lbf |
| Lumber Type | Interior Underlayment |
| Commonly Used | Floor Prep, Cabinet Backs, Paneling |
| Can be painted | Yes |
| Can be primed | Yes |
