SKU: 39896880911

Owens Corning FOAMULAR 400 R-10 XPS Foam Board Insulation, 2 in x 4 ft x 8 ft, Square Edge (40 psi)

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Description

Owens Corning FOAMULAR 400 R-10 XPS Foam Board Insulation, 2 in x 4 ft x 8 ft, Square Edge (40 psi)FOAMULAR 400 R 10 XPS Foam Board, 2" x 4' x 8' High performance extruded polystyrene (XPS) insulation board with 40 psi compressive strength for heavy load applications. Offers R 10 thermal resistance at 2 inch thickness and square edges for flush installs. Key Features: High Compressive Strength: 40 psi for under slab, foundation, and commercial roof applications Energy Efficient: R 10 thermal resistance at 2 inch thickness helps reduce heat loss

FOAMULAR 400 R-10 XPS Foam Board, 2" x 4' x 8'

High-performance extruded polystyrene (XPS) insulation board with 40 psi compressive strength for heavy-load applications. Offers R-10 thermal resistance at 2-inch thickness and square edges for flush installs.


Key Features:

  • High Compressive Strength: 40 psi for under-slab, foundation, and commercial roof applications
  • Energy Efficient: R-10 thermal resistance at 2-inch thickness helps reduce heat loss
  • Moisture Resistant: XPS core retains R-value even in wet conditions
  • Easy to Work With: Lightweight panels score, snap, and cut cleanly without special tools
  • Sustainable NGX Formulation: Blowing agent designed to significantly reduce global warming potential

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type XPS Rigid Foam Board
Compressive Strength 40 psi (FOAMULAR 400)
R-Value R-10
Thickness 2 in
Width 48 in
Length 8 ft
Coverage Area 32 sq ft per board
Compatible Install Surface Concrete, Plywood, Wood
Faced or Unfaced Unfaced
Insulation Location Exterior sheathing, exterior wall foundation, under slab
Interior/Exterior Exterior (must be covered if used indoors)
Number of Pieces 1
Pack Size 1
Product Weight 10 lb
Warranty Limited Lifetime
Features Formaldehyde-free; Moisture retardant; Mold resistant; Water resistant
Edge Type Square Edge
Material Extruded Polystyrene (XPS)

Frequently Asked Questions (FAQ):

Q: Can this board be used below grade or under slabs?
A: Yes—commonly used for exterior foundation walls and under-slab applications due to its 40 psi compressive strength and moisture resistance.


Q: Does it need to be covered indoors?
A: Yes—XPS foam cannot be left exposed and must be covered by a 15-minute thermal barrier such as drywall when used indoors.


Q: What surfaces is it compatible with?
A: Concrete, wood, and plywood.


Q: Is the board faced or unfaced?
A: Unfaced.


Q: What are the panel dimensions and coverage?
A: Each board is 2 in thick, 48 in wide, and 8 ft long, covering 32 sq ft.


Sculpted Strength, Modern Warmth

This XPS board brings precision and pink-hued confidence to high-performance builds. Its crisp square edge and slim 2-inch profile glide into tight assemblies, delivering steadfast insulation without bulk. Use it to create a clean, continuous thermal layer behind cladding or beneath polished concrete for a seamless envelope. It’s a quiet essential—powerfully functional and undeniably refined.


Upgrade your envelope with FOAMULAR 400 and lock in durable, R-10 energy savings for your next project.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39896880911

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4.6 ★★★★★
Based on 16 reviews
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Gus
Lake Worth, US
★★★★★ 5
Heavy chewer approved.
Style: Ball, Size: Medium (Pack of 1)
My pomsky will destroy a toy in minutes. Ropes, and the "indestructible" nylon type stuffs are no match for my furry shark. This ball has stood up to him like David. He loves the crunch and it is so much more tolerable than a squeaker. These will be a staple in his toy box - Chuckit toys are really the most durable dog toys I have found in three years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
G
Verified Purchase
Gold Coast
Omaha, US
★★★★★ 5
Fun Ball
Style: Ball, Size: Medium (Pack of 2)
Great new ball for our pup. He loves the sound of the crunch!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
C
Verified Purchase
Cheryl
San Leandro, US
★★★★★ 5
Durability
Style: Ball, Size: Medium (Pack of 2)
My dog loves these balls!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
S
Verified Purchase
ShainaKatt
Phoenix, US
★★★★★ 5
Dogs love them
Style: Ball, Size: Medium (Pack of 2)
Our dogs love these. What’s great is that you can add more plastic (like from water bottles) if the plastic starts to fall out from the center. If you have a chewer, though, these won’t last you long. Our shepherd mix loves these and then starts to pull the rubber apart the more she plays with it. Our other dogs treat it normally, though, and those ones last forever. They also get some decent height when bounced, and they make a unique whistling noise when thrown.
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Reviewed in the United States on November 17, 2025
W
Verified Purchase
waragon
Dallas, US
★★★★★ 4
Our pup loves the cronch cronch!
Style: Ball, Size: Medium (Pack of 1)
I bought our 15 month old Coton several Chuck-It toys on an Amazon deal. He is incredibly playful, mischievous, and ball/toy obsessed, especially for anything that makes noise. He can also be very destructive so I love how durable most of their products are - they’re among our longest lasting toys and worth every penny. We have yet to take them to the dog park, but they’re a perfect size for sharing in play time. And they are keeping him busy at home - that’s a good thing. He loves investigating the crunchy-cronchy-crinkly sound which is a nice change from squeakers. It can withstand his destructive chewing well-being, gentle on his little teeth. I love that. Chuck-It is thinking outside the box with a variety of balls to keep dogs engaged! I do worry about the crinkle plastic inside because it is accessible because of the air holes and it feels a little sharp. So this will have to be an at home toy so we can monitor his play.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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