Name: Project Source 450-sq ft 3.34-ft W x 135-ft L x 2 -mm T Standard Foam Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood
Brand: Project Source
SKU: 5014838909
Price: 208.98 USD
Availability: InStock
Rating: 4.5 (689 reviews)

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General
Type	Roll	Grade	Standard
Package Quantity	1

Dimensions
Coverage Area (Sq. Feet)	450	Thickness Unit of Measure	Millimeters
Length (Feet)	135	Width (Feet)	3.34
Square Footage Per Roll (Sq. Feet)	450	R-Value per Inch	0.29
Thickness	2	Construction Type	Foam

Features
Antimicrobial	No	Mold/Mildew Resistant	Yes
Cushioning	Yes	Sound Absorbing	Yes
Enhancements	Simple t	STC Rating	More than STC-50
IIC Rating	56-60	Vapor Barrier	Yes
Lowe's Exclusive	Yes	For Use Over Plywood	Yes
Moisture Resistant	Yes

For Use Over
For Use Over Concrete	Yes	For Use Over Existing Hardwood	Yes
For Use Over Subfloor	Yes

For Use Under
For Use Under Luxury Vinyl	No	For Use Under Glue Down	No
For Use Under Laminate	Yes	For Use Under Nail Down	No
For Use Under Hardwood	Yes	For Use Under Luxury Vinyl With Pre-Attached Pad	No
For Use Under Porcelain/Ceramic	No	For Use Under Laminate With Pre-Attached Pad	No
For Use Under Floating	Yes

Certifications
CA Residents: Prop 65 Warning(s)	No

Compatibility
Use Over Existing Sheet Vinyl	Yes

Miscellaneous
UNSPSC	30161700

Check out the Best Selling Flooring Underlayment on Lowes.com

Review

4.5 out of 5

689 Reviews

91% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 37

What Customers Are Saying

Customers overwhelmingly praise this underlayment for straightforward installation, effective moisture protection, and cushioning comfort. Most highlight that it requires no special tools, with convenient adhesive strips that simplify the process even for inexperienced DIYers. Reviewers consistently note reliable performance as a moisture barrier, particularly over concrete and in basements, plus added softness underfoot that reduces noise. Many consider it excellent value for basic flooring projects. A few report creasing, tearing, or durability concerns, but the vast majority find it a dependable, cost-effective solution.

Customer review summary generated by AI, including incentivized reviews.

691 Customer Reviews

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Easy installation

Bought this to install sub floor below the laminate flooring also purchased at Lowe’s. Easy to use and worth the money

CWW75September 4, 2026
From 100-sq ft 3.34-ft W x 30-ft L x 2 -mm T Standard Foam Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser

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Would Recommend

Very good product giving support, insulation and ease of use

DinkySeptember 3, 2026
From 100-sq ft 3.34-ft W x 30-ft L x 2 -mm T Standard Foam Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Project Source450-sq ft 3.34-ft W x 135-ft L x 2 -mm T Standard Foam Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood
		Ratings	689
		Type	Roll
		Vapor Barrier
		Moisture Resistant
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