Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Log In
Cart
Home
/
Building Materials
/
Insulation
/
Foam Board Insulation
Foam Board Insulation
EPS Insulation
Shop Now
Polyiso Insulation
Shop Now
XPS Insulation
Shop Now
0/0
Product Thickness (in.): 1 in
Product Thickness (in.): 1.5 in
Product Thickness (in.): 2 in
EPS
ISO
XPS
Get It Fast
In Stock at Store Today
Filters
Filters
Clear All
Get It Fast
In Stock at Store Today
Availability
Show Out of Stock
Department
Building Materials
Insulation
Foam Board Insulation
Sheathing Type
XPS
EPS
ISO
Insulation R-Value
R10
R7.5
R5
R1
R2.65
R3.2
R3.85
R3
Insulation Location
Basement
2x4 Wall
Attic
Garage
Exterior Sheathing
Exterior Wall Foundation
Exterior Wall
Ceiling Insulation
Crawlspace
2x6 Wall
Interior Ceiling
Interior Wall
Re-Siding
Wood Siding
Under Slab
Floor
Product Thickness (in.)
0.08 in
0.25 in
0.5 in
0.75 in
1 in
1.5 in
2 in
Faced or Unfaced
Faced
Unfaced
Insulation Features
Mold Resistant
Formaldehyde Free
Water Resistant
Paintable
Moisture Retardant
Structural
Pack Size
1
4
8
48
Eco Friendly
Energy Star
View Results
All Filters
Sheathing Type
Insulation R-Value
Insulation Location
Product Thickness (in.)
Faced or Unfaced
18 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
More Options Available
$
18
.
97
Buy
10
or more
$17.07
(73)
Model# 13NGX
Owens Corning
FOAMULAR NGX Insulating Sheathing 0.5 in. x 4 ft. x 8 ft. SE R-3 XPS Rigid Foam Board Insulation
Add to Cart
More Options Available
$
31
.
97
Buy
10
or more
$28.77
(120)
Model# 20WENGX
Owens Corning
FOAMULAR NGX F-150 1 in. x 4 ft. x 8 ft. SSE R-5 XPS Rigid Foam Board Insulation
Add to Cart
$
31
.
97
Buy
10
or more
$28.77
(600)
Model# 20WE
Owens Corning
FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing
Add to Cart
$
15
.
98
Buy
10
or more
$14.38
(479)
Model# 320821
R-Tech
1 in. x 48 in. x 8 ft. R-3.85 Insulating Sheathing
Add to Cart
More Options Available
$
9
.
97
(194)
Model# 9WE
Owens Corning
FOAMULAR NGX 1 in. x 2 ft. x 2 ft. R-5 Project Panel XPS Rigid Foam Board Insulation
Add to Cart
$
53
.
97
Buy
10
or more
$48.57
(285)
Model# 6W
Owens Corning
FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Unfaced Squared Edge Insulation Sheathing
$
53
.
97
Buy
10
or more
$48.57
(285)
Model# 45W
Owens Corning
FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Rigid Foam Board Insulation Sheathing
Best Seller
More Options Available
$
64
.
97
Buy
10
or more
$58.47
(133)
Model# 52DDNGX
Owens Corning
FOAMULAR NGX F-250 2 in. x 4 ft. x 8 ft. SSE R-10 XPS Rigid Foam Board Insulation
Add to Cart
More Options Available
$
27
.
88
Buy
10
or more
$25.09
(346)
Model# 637902
RMAX
Pro Select R-Matte Plus-3, 0.5 in. x 48 in. x 8 ft. R-3.2 ISO Rigid Foam Board Insulation
Add to Cart
More Options Available
$
64
.
97
Buy
10
or more
$58.47
(145)
Model# 21UM
Owens Corning
FOAMULAR 1/4 in. x 4 ft. x 50 ft. R-1 Fanfold Rigid Foam Board Insulation Sheathing
Add to Cart
$
10
.
98
/package
Buy
10
or more
$9.88
(296)
Model# 150705
3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack)
Add to Cart
$
42
.
46
(67)
Model# SFL-200-2103
STYRO Industries
FP Ultra Lite 2 in. x 2 ft. x 4 ft. Stucco Grey Foundation Panel
Add to Cart