FREE Standard Ground Shipping on Orders over $99 - Use Coupon Code FREESHIP99 at Checkout
Open Mon-Fri 9-5, Sat 10-4 CST
Email Us | Get a Call Back
Talk To An Expert
Monday - Friday
9:00 AM - 5:00 PM
10:00 AM - 4:00 PM
Email Us | Get a Call Back
Shopping Cart
 ITEMS   $0.00


StatisticsReview of Green Building Supply

Sponge Cushion Inc., DeciBLOK


High-performance acoustic underlayment

Our popular underlayment, DeciBLOK provides great support, sound insulation and durability for flooring. DeciBLOK™ acoustic wood, engineered wood, and laminate floor cushion, is composed of a lightweight, cellular sponge rubber mat, that is layered between two polyester non-woven films. It is designed to reduce flooring noise by dampening impact effects and by isolating sounds to the room where they are created. It is antimicrobial and non-allergenic; plus it inhibits and retards micro-organisms, odors, mold and mildew. DeciBLOK is also available with a moisture vapor barrier for concrete subfloors.

DeciBLOK's good memory prevents compression, and its low R-value makes it ideal for floating floor installations over radiant heat. It can also be glued down for even better sound quality and further reduction of impact noise.

DeciBLOK is very easy to use; simply roll it out and cut it with a razor blade to fit the room. It has a slight rubber smell when first out of the package, but this goes away and leaves no trace once covered with a floor. Completely non-toxic, it doesn't contribute to indoor air pollution. CRI Green Label Certified for indoor air quality.

DeciBLOK with Moisture Barrier is also available.

Why we like it

We've used this since 1991 underneath our radiant-heated floating floor. It doesn't compress, crumble, disintegrate or out-gas like most foam pads. It also allows heat to easily pass through.

Features & benefits

  • Long-lasting — highly stable; will not crumble and maintains elasticity through years of service
  • Non-toxic — uses food grade polymers used in chewing gum; antimicrobial and non-allergenic
  • Safe — for everyone, including the chemically sensitive; learn how to test a non-toxic product for tolerance
  • Mold-resistant — inhibits and retards micro-organisms, odors, mold and mildew on or below grade applications
  • Radiant heat safe — low R-value of .10, will not inhibit transfer of heat; no performance decrease at high temperatures
  • Installs anywhere — can be installed above or below grade, over any sub-floor
  • Eco-friendly — 100% recyclable; at least 20% post-industrial recycled content; meets or exceeds indoor air quality standard established by CRI Green Label Program
  • Easy-to-use — rolls out easily and lays flat

Alert: This pad has a rubber smell when first opened; however, the odor is non-toxic. Like all products, it should be pre-tested if you're chemically sensitive.

State Nexus Fee may apply
A state nexus fee will be applied to this item if drop shipped to the following states: Illinois. We're sorry for the inconvenience. Click here to read more about the state nexus fee.

This item description was written by Joel Hirshberg

sound rating under engineered wood: FIIC 57, FSTC 55


Residential Finish Wear
Residential Structural
Commercial Finish Wear
Commercial Structural
Forest Stewardship Council (FSC) 
FSC Content
FSC Chain-of-Custody #
LEED® Qualifications 
LEED® Regional Materials Zip Code
CertificationsCRI Green Label Plus
Interior or ExteriorInterior
Use On MaterialConcrete, Concrete: Slabs, Metal: Steel, Stone, Wood
Use On
LocationAll Rooms
Eco-replacement for 
Chemically-sensitive safeYes learn how to test a non-toxic product for tolerance
Test before useYes, test on inconspicuous area
Coverage (1 Coat)1-Roll = 216 SF
Square Feet / Box Square Feet
Thickness or Height1/8"
Thickness2.5 mmmm
Veneer Cut Thicknessdensity 44 oz, 37 density pcf
Length(48') 576"
Boxes / Pallet Boxes
Square Feet / Pallet Square Feet
Boards / Box Boards
Pieces / Box Pieces
Weight / Box66 Pounds
Minimum Order
Old Name
Recycled Content
Shelf Life 
Use With These Prodcuts
Number of Colors Colors
Carpet Pattern
Coordinating Border
Critical Radiant Flux
Extractable Matter
Face or Pile Weight
General Flammability
Surface Flammability
GSA Classification
Machine Guage
Moth Resistance
Pattern Repeat
Pile Height (High)
Pile Height (Low)
Primary Backing
Resistance to Insect Pests
Roll Length '
Secondary Backing
Smoke Density
Stitches Per Inch
Surface Texture, Construction, Style
Total Height
Total Weight
Traffic Rating
Tufts per Sq. In. Tufts / Sq In
Yarn Construction
Bundles per Pallet Bundles
Bundles per Square 6" Exposure Bundles
Bundles per Square 7" Exposure Bundles
Bundles per Square 7-1/2" Exposure Bundles
Bundles per Square 8" Exposure Bundles
Pounds per Bundle Pounds
Pounds per Pallet Pounds
Pounds per Roll Pounds
Pounds per Square Pounds
Pounds per Square 6" Exposure Pounds
Pounds per Square 7" Exposure Pounds
Pounds per Square 7-1/2" Exposure Pounds
Pounds per Square 8" Exposure Pounds
Lin Feet per Bundle Lin Feet
Lin Feet per Pallet Lin Feet
Rolls per Pallet Rolls
Squares per Roll Squares
Tiles per bundle Tiles
Tiles per Lin Foot Tiles
Finish Type 
VOC Content Grams/Liter
Use On Material - ConditionConcrete, Concrete: Slabs, Metal: Steel, Stone, Wood
Application Method 
Application Temperature Range
Application Instructions
Surface or Product Preperation
Recommended # of Coats
Re-coat After 
Drying Time
Appearance When Dry
Cleans Up With 
Recycling or Disposal 
Bamboo Construction 
Bathroom Installation
Color Change
Construction Description
Finish Sheen 
Floor Item Type
Floor Pattern
Floor Type 
Grade Installation 
Janka Hardness Rating
Joint System
Number of Plys  -Plys
Radiant Heat 
Range of Resistance
Risk in Dry Climates 
Shade (1 Light) - (7 Dark) 
Strips / Plank  -Strips/Plank
Surface Texture 
Surface Treatment 
Surface Treatment Color
Tile Application 
Touch Up Kit
Can be indoor?
Can be outdoor?
Direct Vent?
Energy Factor
Max Gallons Per Minute - GPM
Max BTU's / Hour - BTU's / Hour
Multi Control Capabilities
Temperature Range (with remote)
Life Hrs
Input Wattage W
Delivered Lumens lm
Efficacy lm/W
Color Temperature K
Color Rendering Index (CRI)
Equivalent Wattage W
Energy Savings
Additional Information
Impact insulation class: IIC-58 w/ laminate Sound Transmission class: ST-52 w/laminate
Main Item
Original, World - FM

Kahrs Original, World

Stained exotic hardwood floating floors with red and brownish tones
Main Item
Original, American Naturals - FM

Kahrs Original, American Naturals

Wide-plank floating floor in four domestic hardwood species
Main Item
Original, Builder - FM

Kahrs Original, Builder

Value-priced, DIY, stained white oak and natural beech hardwood floating flooring
Main Item
Original, Harmony - FM

Kahrs Original, Harmony

Wide-plank three-strip oak floating floor featuring six colors in stained and brushed matte finish
Main Item
Original, European Naturals - FM

Kahrs Original, European Naturals

Wide-plank floating floor collection of mountain maple and oak from the Alps
Main Item
Original, Scandinavian Naturals - FM

Kahrs Original, Scandinavian Naturals

Wide-plank floating floor featuring Nordic-inspired style in ash, beech and birch
Main Item
Original, Vineyard - FM

Kahrs Original, Vineyard

Wide -plank floating floor featuring stained and brushed oak inspired by the warmth and harmony of a vineyard lifestyle
Main Item
Original, Bayside - FM

Kahrs Original, Bayside

Wide-plank floating floor in brushed and microbeveled matte finish oak styles
Main Item
Original, Artisan - FM

Kahrs Original, Artisan

Stained, white oak, wide-plank, DIY, floating hardwood floor with wire-brushed or handscraped oil finish
Main Item
Spirit, Unity - FM

Kahrs Spirit, Unity

Designer wide-plank hardood floors in various colors and wood species
Main Item
Supreme, Grande - FM

Kahrs Supreme, Grande

Rustic super-wide plank floating oak floor with oiled hand-scraped finish
Main Item
Synergy, Floating - FM

Teragren Synergy, Floating

Beautiful, sustainable, award-winning wide-plank strand bamboo flooring
Main Item
ET American Woods - FM

EcoTimber, American Woods

Engineered hardwood flooring sustainably harvested in the USA and manufactured with no added formaldehdye
Main Item
ET World Woods - FM

EcoTimber, World Woods

Engineered hardwood flooring sustainably harvested and manufactured with no added formaldehyde or VOCs
Main Item
ET Nature's Lodge - FM

EcoTimber, Nature's Lodge

FSC, engineered, wide-plank white oak flooring, with an oil finish

Sponge Cushion Inc., DeciBLOK

High performance, non-toxic, acoustic underlayment ideal for floating floors especially radiant heated floors

Sponge Cushion Inc., DeciBLOK

Item #3941
Lifetime Phone Support
Your Price