MP Global PolyFoam Multipurpose Foam Underlayment – 100 sq ft Roll for Laminate & Engineered Wood, Moisture-Resistant, Shock-Absorbing, Lightweight, Made in USA

Overview

MP Global PolyFoam Multipurpose Foam Underlayment arrives as a 100 sq ft roll, designed for floating laminate and engineered wood flooring. Made from polyethylene, it provides a soft underfoot cushion, helps absorb impact, and bridges minor subfloor gaps for a smoother surface. A built-in moisture-resistant layer helps slow moisture migration from concrete or wood subfloors, supporting long‑term flooring durability. The material is lightweight, hypoallergenic, and easy to cut with a utility knife, which can make DIY installation feel more approachable.

Key benefits

• Multipurpose underlayment for laminate and engineered wood that bridges minor subfloor imperfections for a smoother finish.
• Moisture‑resistant barrier helps block moisture from concrete or wood subfloors, reducing potential long‑term damage.
• Roll size: 100 sq ft (30 ft x 3 ft 4 in.), offering ample material for standard rooms.
• Shock-absorbing and insulating properties provide a comfortable underfoot feel, plus thermal and sound benefits.
• Lightweight and easy to install — roll out smoothly, cut with a utility knife, and tape seams for quick DIY setups.
• Made in the USA with high‑quality polyethylene; hypoallergenic and safe for most indoor environments.

How to use

Prepare a clean, dry subfloor. Roll out the underlayment and align with the room edges. Cut to fit using a utility knife, then tape seams for a continuous surface. For below‑grade installations, pair with an additional moisture barrier as needed.

Installation tips

• Leave minimal gaps around walls; but follow your flooring manufacturer’s guidance for expansion gaps.
• Overlap seams slightly and seal with compatible tape to prevent shifting during installation.
• Keep work area dry during cutting and fitting to preserve underlayment integrity.

Use cases

Ideal for above‑grade, floating laminate and engineered wood projects where a cushion, moisture control, and a smoother subfloor surface are beneficial. It also works in renovations aiming to reduce minor subfloor irregularities without adding significant bulk.

With its USA‑made construction and hypoallergenic materials, this underlayment is designed to support comfortable living spaces while keeping installation approachable for DIY enthusiasts.