Flooring Underlayment

Underlayment helps dampen sound, protects against harmful moisture and provides thermal insulation for your hardwood, laminate or vinyl floors in your home.

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Underlayment - QuietWalk Max 100sft

SKU 10056877

Foam Products • Underlayment - EcoSilencer Max 100sft

SKU 10056803

Underlayment - QuietWalk Versa 100sft

SKU 10056873

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Dream Home • QuietWalk Premium Underlayment 100 sqft. Roll

SKU 10008348

Web Exclusive
Dream Home • Eco Silent Sound Underlayment 100 sqft.

SKU 10040871

6 mil Moisture Barrier Polyethylene Film 120 sqft. Roll

SKU 10052685

QuietWalk Premium Underlayment 360 sqft. Roll

SKU 10046600

Dream Home • 6 mil Moisture Barrier Polyethylene Film 300 sqft. Roll

SKU 10008736

Major Brand • Underlayment - QuietBoard 90sft

SKU 10056807

Dream Home • Foam Underlayment For Laminate Floor 100 sqft. Roll

SKU 10012844

Silicone Vapor Shield 400 sqft. Roll

SKU 10021412

AbsorbaSound 5 mm Acoustical Rubber Underlayment for Hard Surface Floors 100 sqft. Roll

SKU 10054986

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Dream Home • 12 mm Cork Underlayment 2 ft. x 3 ft. Sheet 150 sqft.

SKU 10035323

Delta-Protec Basement/Slab Underlayment 100 sqft.

SKU 10049156

Floorotex Temporary Floor Protection 150 sqft. Roll

SKU 10041765

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Dream Home • Insulayment Premium Underlayment for Glue and Nail Down Hardwood Floors 100 sqft. Roll

SKU 10014403

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Dura Dance Home Underlayment 100 sqft. Roll

SKU 10026403

Major Brand • Underlayment - Quell Essential 100sft

SKU 10056781

Proflex Mega Sound Control Membrane 100 sqft

SKU 10044708

1-7/8" x 100' Underlayment Seal Tape

SKU 10046595

3/8 in. Diameter x 50 ft. Length Backer Rod

SKU 10045964

Underlayment and Padding

Underlayment and padding provide moisture protection, stability, and warmth. They can also help even out minor imperfections in subfloors and dampen the sounds of foot traffic. At LL Flooring, we know that the right underlayment also goes a long way to extending the life of your flooring.

Find the Right Underlayment for Your Flooring

We offer a range of underlayment and padding. Whether you’re looking to prevent cracks in your tiles or add warmth to your basement, our selection has what your flooring needs.


Foam underlayment works best with floating flooring. Its structure creates sound and impact reduction to quiet everyday noises. Foam also helps to level slight irregularities in subfloors. Foam underlayments can also receive antimicrobial treatments to help fight against mildew and mold.


This type of underlayment is ideal for a range of flooring types like tile, marble, and stone as well as floating and glue-down flooring. A prominent feature of cork is its ability to prevent stress cracks from moving through the subfloor into the floor surface. Cork also insulates and helps increase the efficiency of heating systems. It is easy to install either with glue or with a loose-lay installation. Best of all, natural cork is eco-friendly and often receives approval from green building initiatives.


High-performance acoustic rubber is an easy-to-install underlayment with outstanding sound suppression. It is naturally compression resistant and absorbs sounds from both above and below. Rubber underlayment can be made with 100% post-consumer recycled rubber that is environmentally friendly and 100% recyclable.

Moisture Barriers

Basements tend to be a bit damp and builders usually install moisture barriers on basement walls, but they can sometimes overlook the floor. At LL Flooring, we offer heavy-duty moisture membranes, to use in addition to underlayment, for keeping basement and slab-on-grade floors dryer than before. They also add an extra layer of comfort to otherwise hard floor surfaces. If you're installing your flooring over concrete (rather than wood), you may want to consider using a 6mm poly to mitigate moisture.

You may also want to explore a combined moisture barrier and underlayment. Sometimes crafted with recycled foam and a foil moisture vapor barrier, these underlayments offer superior moisture control, eliminating the need for 6 mm poly altogether while also providing excellent sound and thermal insulation properties. You'll also appreciate the fanfold pre-marked design that makes installation easy.

Radiant Floor Heating

Installing radiant floor heating might sound like an extravagance at first, but these systems can help you save up to 50% on your energy costs. When it comes to electromagnetic field ratings, they’re ultra-low and safe. LL Flooring offers peel and stick products in 120V and 240V. We also offer programmable, wireless, and smart touch thermostats to keep your radiant floor heating working at ideal temperatures.

Check your flooring's specifications to find the best-matched underlayment or padding. Some materials, such as foam, are great for floating floors, while cork is better suited for stone and ceramic floors. At LL Flooring, our flooring experts are ready to help you make the best choices for your flooring project. Browse our selection or contact us for more information.