#1 Home Improvement Retailer

Cart

Cart

Home
Flooring
Flooring Supplies
Surface Prep
Underlayment

UNDERLAYMENT

Gray

Gray

Attached vapor barrier

Attached vapor barrier

Waterproof

Waterproof

Waterproofing membrane

Waterproofing membrane

Shop Savings

Shop Savings

54 Results
Filters
Filters
Clear All

Get It Fast

caret-icon

Department

caret-icon
Underlayment

Review Rating

caret-icon
54 & Up3 & Up2 & Up1 & Up0

Brand

caret-icon

Price

caret-icon
to

Flooring Type

caret-icon

Flooring Material Features

caret-icon

Package coverage (sq. ft.)

caret-icon

Material

caret-icon

    Sort by

    Top Sellers
Tile Membrane 54 Sq. Ft. 40.8 x in. W 16 x ft. L x 3 mm T Uncoupling Underlayment for Stone, Ceramic Porcelain Tiles
(4.7 / 12)
Model# DMX Tile Membrane
$1.57
/sq. ft.
($84.99/roll)
RedGard 39.4 in. W x 16.5 ft. L x 3 mm T Uncoupling Mat for Tile, Ceramic, Porcelain, Stone
(3.8 / 99)
Model# RGM254
$2.02
/sq. ft.
($109.00)
Top Rated
Kerdi 3 ft. 3 in. x 16 ft. 5 in. Waterproofing Membrane
(4.5 / 131)
Model# KERDI200/5M
See Low Price in Cart
Kerdi 3 ft. 3 in. x 23 ft. Waterproofing Membrane
(4.7 / 23)
Model# KERDI200/7M
$2.09
/sq. ft.
($156.65)
500 sq. ft. 36 in. Wide x 167 ft. Long x 7 mil Thick Aquabar "B" Tile Underlayment Roll500 sq. ft. 36 in. Wide x 167 ft. Long x 7 mil Thick Aquabar "B" Tile Underlayment Roll
(4.7 / 317)
Model# 70-195
07¢
/sq. ft.
($33.97/roll)
Kerdi-Shower-T/-TS/-TT 48 in. x 72 in. Sloped Shower Tray
(4.9 / 16)
Model# KST1220/1830
$228.74
Kerdi-Board-SN Shower Niche with Frame 12 in. W x 20 in. L x 0.5 in. T Underlayment for Tile
Model# KB12SN305508AF
$105.65
Kerdi-Band 5 in. x 32 ft. 10 in. x 4 mil Underlayment Waterproofing Strip
(4.6 / 29)
Model# KEBA100/125/10M
$43.57
Kerdi-Band 5 in. x 16 ft. 5 in. Waterproofing StripKerdi-Band 5 in. x 16 ft. 5 in. Waterproofing Strip
(4.6 / 114)
Model# KEBA100/125/5M
$23.58
Kerdi-Board-SN Shower Niche with Frame 12 in. W x 28 in. L x 0.5 in. T Underlayment for Tile
(4.2 / 5)
Model# KB12SN305711AF
$126.27
Kerdi-Board-SN Shower Niche with Frame 12 in. W x 12 in. L x 0.5 in. T Underlayment for Tile
(5 / 2)
Model# KB12SN305305AF
$78.16
New
RedGard 108 sq. ft. 39.37 in. W x 32.8 ft. L x 30 mm T Tile Fabric Membrane Underlayment for Concrete Flooring
Model# RFM108
$1.80
/sq. ft.
($194.00)