SKU# 14UL
UNDERLAYMENT PLYWOOD 1/4" (5.2MM) 4x8
1/4" (5.2MM) 4X8 INTERIORProduct Overview
One-quarter inch (1/4") underlayment plywood is a non-structural panel designed to create a smooth, defect-free surface over a subfloor, suitable for a variety of finished floor coverings like vinyl, carpet, and tile.
Interior use.
1/4-in (5.2mm) 4x8 Interior Underlayment Plywood
The 1/4-in (5.2mm) 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. Â
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. Â
This Interior Underlayment Plywood Features
- 1/4-in (5.2mm) thickness provides a thin, stable leveling layer for floor transitions.
- Standard 4x8 sheet size for wide project coverage and fewer seams.
- Interior grade adhesive for superior bonding in climate-controlled environments.
- Species advantage: Smooth surface reduces the risk of telegraphing through vinyl.
- Consistent Janka hardness helps resist surface crushing and everyday wear.
- Excellent dimensional stability to prevent shifting or buckling after installation.
- Ideal for luxury vinyl tile (LVT), sheet vinyl, and thin carpet underlayment.
- Versatile use for cabinet backs, drawer bottoms, and creative craft applications.
- Easy to cut and install with standard woodworking tools and pneumatic fasteners.
- Uniform texture ensures a high-quality base for a professional finished look.
Product Specifications
| SKU | 14UL |
| Dimension (Size) | 4x8 |
| Thickness | 1/4-in (5.2mm) |
| Wood Specie | Softwood Blend |
| Janka Hardness Rating | Approx. 660 lbf |
| Item/Wood/Lumber Type | Interior Underlayment |
| Commonly Used | Floor Prep, Cabinet Backing, Craft Projects |
| Can be painted | Yes |
| Can be primed | Yes |
