SKU: 60511243739

JM R-21 Kraft-Faced Fiberglass Batt Insulation, 15 in. x 93 in., 67.81 sq. ft. (7-Piece Bag)

Sale price$175.64 Regular price$195.15
Save 10%

Pay in installments of $48.79 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

JM R-21 Kraft-Faced Fiberglass Batt Insulation, 15 in. x 93 in., 67.81 sq. ft. (7-Piece Bag)R 21 Kraft Faced Fiberglass Wall Batt Insulation JM R 21 kraft faced fiberglass batts are pre cut to fit 2x6 wall cavities for efficient thermal performance and added sound control. The kraft facing provides a built in vapor retarder to help manage moisture in wood framed walls and basements. Key Features: Pre Cut for 2x6 Walls: Designed for standard 8 ft walls with 16 in on center stud spacing (15 in. x 93 in. batts). Built In Vapor Retarder: Kraft

R-21 Kraft-Faced Fiberglass Wall Batt Insulation

JM R-21 kraft-faced fiberglass batts are pre-cut to fit 2x6 wall cavities for efficient thermal performance and added sound control. The kraft facing provides a built-in vapor retarder to help manage moisture in wood-framed walls and basements.


Key Features:

  • Pre-Cut for 2x6 Walls: Designed for standard 8-ft walls with 16-in on-center stud spacing (15 in. x 93 in. batts).
  • Built-In Vapor Retarder: Kraft facing helps control moisture when installed against framing in exterior wall applications.
  • Comfort & Quiet: Improves energy efficiency while helping reduce sound transmission through walls.
  • Formaldehyde-Free Fiberglass: Made with formaldehyde-free fiberglass insulation for indoor comfort.
  • Durable, Stable Batts: Dimensionally stable fiberglass resists slumping, settling, or breakdown in normal applications.

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Fiberglass batt
R-Value R-21
Coverage Area 67.81 sq ft
Batt Width 15 in
Batt Length 93 in (7.75 ft)
Thickness 5.5 in
Pieces per Bag 7
Stud Spacing 16 in on-center
Fits Wall Size 2 x 6 wall
Faced/Unfaced Kraft faced
Vapor Retardant Yes
Sound Barrier/Sound Control Yes
Formaldehyde Free Yes
Framing Type Wood studs
For Use in Walls Yes
For Use in Basements Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
SCS Recycled Content Certification Yes
Warranty 1-year limited
Package Type Multi-pack
Total Package Quantity / Package Count 7
R-Value per Inch 3.8181
Bag Dimensions (L x W x D) 20 x 20 x 50

Frequently Asked Questions (FAQ):

Q: What stud cavity does this insulation fit?
A: It’s sized for 2x6 wood-stud wall cavities with 16-in on-center spacing (15 in. wide batts).


Q: Does the kraft facing act as a vapor barrier?
A: Yes. The kraft facing is a vapor retarder intended to help with moisture control when installed properly.


Q: How much area does one bag cover?
A: One bag covers 67.81 sq. ft.


Q: How many batts come in a bag?
A: The bag contains 7 pieces (batts).


Q: Where can it be used?
A: It’s commonly used in walls and basements; it’s also listed for use in walls, floors, and crawl spaces depending on the retailer listing and application needs.


Quiet Luxury Starts Behind the Walls

True comfort is architectural—felt in the hush of a room and the steady calm of temperature that never calls attention to itself. These R-21 kraft-faced fiberglass batts slip into 2x6 cavities with a tailored fit, while the kraft facing adds a thoughtful layer of moisture control. Use them to elevate bedrooms, home offices, or any space where serenity is the ultimate finish. It’s the invisible upgrade that makes a home feel undeniably luxe.


Upgrade your 2x6 walls with JM R-21 kraft-faced batts for efficient comfort, moisture control, and quieter rooms.

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: 60511243739

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kam
Dallas, US
★★★★★ 5
Great prom suit
Size: X-Small, Color: Royal Blue-3pieces
The quality is awesome. Just needed a few alterations and my done is set for the prom
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
S
Verified Purchase
Serina Anthony
Omaha, US
★★★★★ 5
Fun alternative to traditional tuxedo
Size: Large, Color: Black-2 Pieces, Size: Large, Color: Black-2 Pieces
Fairly good quality. Hubby wore this as fun alternative to his regular tux in a cruise elegant night. Looked sharp and we even got family pictures in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
O
Verified Purchase
Octavia Ward
Natrona Heights, US
★★★★★ 5
Great for price ⭐
Size: Small, Color: Blue-2 Pieces, Size: Small, Color: Blue-2 Pieces
Bought this for my son's junior prom and it looked so good on him. I had to get a few alterations done because it was a bit too big for him but all in all great quality for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
S
Verified Purchase
Sarah porter
Pawtucket, US
★★★★★ 5
Show stopper!
Size: X-Small, Color: Blue-2 Pieces, Size: X-Small, Color: Blue-2 Pieces
This jacket is everything! My son wore it to his football banquet and it looked amazing. I was worried because he is big for his age and although he can wear men sizes, they can sometimes be too long in the arms. This jacket did not disappoint. It fit his arms well, buttoned up nice and was a great length. It was a nice feel and was not overbearing and thick, but made well. He did a lot of moving around but had no issue with feeling tight it’s certain movements or any rip. I would definitely recommend, money well spent. For reference, my son is 5’1 and 125 pounds. We got a size XS.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2025
A
Verified Purchase
Ashley Meggs
Dallas, US
★★★★★ 5
Perfect for Prom
Size: Large, Color: Black-2 Pieces
Pants fit a little big but perfect for alterations needed! Great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026

recommand products