SKU: 20465256960

Groundworks Jumbo Underlayment - 1.4 mm Roll - 450 sf

$193.91 $215.46
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Groundworks Jumbo Underlayment - 1.4 mm Roll - 450 sf450 sq ft roll of 1. 4 mm underlayment for use under COREtec, flooring. Underlayments are a great option for reducing sound and adding comfort under luxury vinyl floors. This underlayment offers a combination of benefits: Loose lay and float LVT LVP Excellent sound absorption Made of 100% polyurethane foam Extends COREtec residential wear warranty 5 years Moisture Retarder film Smooths out minor subfloor irregularities up to 1 32" Suitable for use

450 sq ft roll of 1.4 mm underlayment for use under COREtec, flooring.

Underlayments are a great option for reducing sound and adding comfort under luxury vinyl floors. This underlayment offers a combination of benefits:

  • Loose-lay and float LVT/LVP
  • Excellent sound absorption
  • Made of 100% polyurethane foam
  • Extends COREtec residential wear warranty 5 years
  • Moisture Retarder film
  • Smooths out minor subfloor irregularities up to 1/32"
  • Suitable for use with radiant heat flooring
  • 3' x 33.34' / 450 sf per roll
  • 1.4 mm thick

GroundWorks is a Impact Sound Reduction Underlayment that was engineered to reduce sound transmission between floors within multi-level structures. It is ideal for use with luxury vinyl tile and plank.

FEATURES

  • Excellent sound suppression between floors

  • No risk of plasticizer migration with recommended COREtec adhesives

  • Suitable over concrete, wood and hydronic radiant heated floors

  • Recommended for floating or double-glue installation

  • GREENGUARD GOLD Indoor Air Quality Certified®

SUGGESTED APPLICATIONS

  • Hotel Rooms
  • Independent Senior Living Rooms
  • Multi-Family Apartments
  • Military Housing
  • Areas where you are concerned about IIC ratings

SPECIAL NOTE

This product is not approved for wide open areas, or areas where there are heavy rolling loads such as hospital beds.

SPECIFICATIONS

construction: Rolled polyurethane foam
application: LVT/P and floating floors
installation: Single glue (floating) or double glue
warranty: Commercial Limited Warranty

US Units Metric
roll size: 6 feet x 75 feet 1.83 x 22.9 m
thickness: 0.055 inches 1.4 mm
roll weight: 14 / 63 lb. 6.35 / 28.58 kg

Specifications and Installation Instructions for Groundworks Underlayment
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: 20465256960

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4.7 ★★★★★
Based on 7 reviews
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Product Reviews
L
Verified Purchase
Lateefah
Pawtucket, US
★★★★★ 5
Nice and easy to assemble
Color: Black, Size: Standard - 4 Panel
I absolutely love this 4-panel room divider! It was super easy to assemble — I had it set up in just a few minutes. The material isn’t too see-through, which gives just the right amount of privacy while still letting some light through. It does exactly what I needed it to do and looks so clean and sleek in my space. Perfect balance of style and function — highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
V
Verified Purchase
Virginia C.
Charlottesville, US
★★★★★ 5
A quick private space
Color: Black, Size: Standard - 4 Panel
Went together easily, just the right height and width for just a bit of privacy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
K
Verified Purchase
Karen O'Dell
Omaha, US
★★★★★ 5
GOOD PRODUCT
Size: 8-Panel
GOOD QUAILITY AND WORKED OUT PERFECT FOR WHAT i NEEDED IT FOR
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
A
Verified Purchase
Aliyha M.
Lake Worth, US
★★★★★ 5
Love them!
Size: 3-Panel
It was funny to get together. Fun moments. My grandfather whom forgot to look down, stepped on it, slid, and did the splits.. there was a little smudge haha. But— its been a year and I still love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
H
Verified Purchase
House_D
Belleville, US
★★★★★ 5
Great home office dividers!
Size: 3-Panel
Needed something to create a home office that would stand on an uneven basement floor. These are the perfect solution! No prying eyes and only took me an hour to put up both sets by myself, pretty easy. They are completely opaque.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025

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