Owens Corning FOAMULAR NGX 250 XPS Foam Board Insulation, R-15, 25 PSI, 3 in. x 4 ft. x 8 ft., Scored Square Edge
SKU: 10158276019

Owens Corning FOAMULAR NGX 250 XPS Foam Board Insulation, R-15, 25 PSI, 3 in. x 4 ft. x 8 ft., Scored Square Edge

Sale price$71.25 Regular price$79.17
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Owens Corning FOAMULAR NGX 250 XPS Foam Board Insulation, R-15, 25 PSI, 3 in. x 4 ft. x 8 ft., Scored Square EdgeFOAMULAR NGX 250 R 15 XPS Foam Board, 3 in. x 4 ft. x 8 ft. Rigid extruded polystyrene (XPS) foam board delivering R 15 thermal performance at 3 in. thickness with 25 PSI compressive strength. The NGX formulation offers high moisture resistance and easier scoring snap cutting for foundations, underslab, and exterior sheathing applications. Key Features: High R Value: R 15 at 3 in. thickness for strong thermal performance Durable Strength: 25 PSI

FOAMULAR NGX 250 R-15 XPS Foam Board, 3 in. x 4 ft. x 8 ft.

Rigid extruded polystyrene (XPS) foam board delivering R-15 thermal performance at 3 in. thickness with 25 PSI compressive strength. The NGX formulation offers high moisture resistance and easier scoring/snap cutting for foundations, under‑slab, and exterior sheathing applications.


Key Features:

  • High R-Value: R-15 at 3 in. thickness for strong thermal performance
  • Durable Strength: 25 PSI compressive strength handles demanding loads
  • Moisture Resistant: XPS resists water absorption to help retain R-value
  • Easy to Work With: Scored square edge snaps cleanly into 16 in. or 24 in. widths
  • Sustainable NGX Blowing Agent: Significantly reduced global warming potential vs. legacy XPS

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product Type Rigid Foam Board Insulation
Brand Owens Corning
Series FOAMULAR NGX 250
Material Extruded Polystyrene (XPS)
R-Value R-15
Thickness 3 in
Width 48 in (4 ft)
Length 96 in (8 ft)
Coverage Area 32 sq ft per sheet
Compressive Strength 25 PSI
Edge Type Scored Square Edge
Faced or Unfaced Unfaced
Compatible Install Surface Concrete, Plywood, Wood
Insulation Location Exterior Sheathing, Exterior Wall Foundation, Under Slab
Insulation Features Formaldehyde Free, Moisture Retardant, Mold Resistant, Water Resistant
Interior/Exterior Interior/Exterior
Number of Pieces 1
Pack Size 1
Sheathing Type XPS
Warranty Limited Lifetime
UPC 0047563721737

Frequently Asked Questions (FAQ):

Q: Can this board be used below grade or under slabs?
A: Yes—rated for exterior foundation walls and under‑slab applications; verify local code for vapor barrier requirements.


Q: Does it need to be covered indoors?
A: Yes—FOAMULAR NGX cannot be left exposed and must be covered with a 15‑minute thermal barrier such as drywall.


Q: Is it faced or unfaced?
A: Unfaced rigid XPS board.


Q: How do I cut and size the panels?
A: Score with a utility knife and snap; factory scores allow breaking into two 24 in. pieces or three 16 in. pieces.


Q: What is the panel size and coverage?
A: Each panel is 3 in. x 48 in. x 96 in. and covers 32 sq. ft.


Sculpted Thermal Armor in Signature Pink

This sleek, scored XPS panel slips behind your finishes to cradle the home in quiet, efficient warmth. I love the disciplined grid that lets you tailor clean 16-inch or 24-inch modules—precise and purposeful. Layer it beneath slabs or along foundation walls, then cloak it in gypsum for a polished envelope. It’s the discreet luxury that elevates comfort and performance with effortless style.


Upgrade your home’s envelope with FOAMULAR NGX 250 and lock in energy savings with durable, easy‑to‑install R‑15 insulation today.

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: 10158276019

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1481 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Ken B.
Omaha, US
★★★★★ 5
Man cave +1
Style: 4-Tier Shelf Brackets, Hardware Only.
Nice add to the man cave
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
F
Verified Purchase
ForrestA
San Leandro, US
★★★★★ 4
Nice and Simple - but big
Style: 4-Tier Shelf Brackets, Hardware Only.
Nice product, very simple in reality. All screws together. Shelves are probably 12inches high - higher than I wanted so I won't be using it after all - but that is my fault for not realizing how vertically spaced the shelves would be. The unit takes up a lot of vertical wall space. My only dislike (hence the -1 rating) is the large stamped letters on every wall mounting plate. The letters don't appear to mean anything, and are very large and upraised - to me they detract from the overall appearance of the unit. The letters are not possible to get rid of without a grinder or significant file-work and repainting everything (not worth the significant effort that would entail).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
C
Verified Purchase
CLIIP. Strength & Conditioning
Draper, US
★★★★★ 5
Great shelving!
Style: 4-Tier Shelf Brackets, Hardware Only.
Love this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
O
Verified Purchase
orestes o.
Birmingham, US
★★★★★ 1
Demasiado pesado
Style: 4-Tier Shelf Brackets, Hardware Only.
No me gustó , además de ser muy complejo para armar , es demasiado pesado , es para paredes bien fuerte ya que requiere muchos tornillos
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
S
Verified Purchase
s.wkan
Belleville, US
★★★★★ 5
Love these shelves
Style: 4-Tier Shelf Brackets with 3 Boards-24in
Highly recommend these shelves. So easy to put together and they are sturdy and look great. I’m considering buying a second one!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025

recommand products