Acoustic sleeper strip - front
SKU: STCWF040743-T8

Acoustic Sleeper Strip (8′)

$505.05 10 @ 8' strips

$ 50.50 per strip


Acoustic Sleeper Strips are 1/4-inch thick neoprene, 1-1/2-inch wide and 8 feet long. They are stapled to the underside of span-rated plywood. Patents are pending.

Strips are recommended at terminal edges and butt-edges of panels where floor finishes are brittle or stiff, such as tile or concrete. Strips can also be used anywhere pads are normally used.

Stock and Shipping: Acoustic Sleeper Strips are always stocked. Minimum order is a box of 10 strips, 8 feet long. Please allow 2 weeks to fill and ship. There is no cost for shipping the Acoustic Sleeper.


How it Works

With a ΔIIC-18, the Acoustic Sleeper has a higher rating than acoustical mats and gypsum cement. It is paired with construction panels such as plywood or OSB that has a structural span rating and forms the subfloor.

The Acoustic Sleeper can work with virtually any type of finish flooring, including hardwood strips, engineered wood, tile (stone, porcelain, ceramic, glass), vinyl sheet, vinyl plank, vinyl tile, rubber flooring, carpet tile, broadloom carpet or even thin lightweight concrete.

The Acoustic Sleeper system works as an integral component of fire-resistance rated floor/ceiling systems for wood frame construction, essentially replacing acoustical mats and gypsum cement and saving cost. Pads are stapled to the sheathing panel over structural members, and subfloor panels laid on top and fastened through the pads. Current UL Designs include:

  • Wood Joists: L502, L506, L514
  • I-Joists: L589
  • Wood Truss: L528, L563, L574
  • Metal Joists: L524
  • Light Gauge Metal Truss: L560, L565

On concrete floors, the Acoustic Sleeper system replaces rubber or cork underlayments, providing luxurious sound control at much lower cost. Pads or strips are stapled onto the underside of the panels and the panels placed, not anchored, to the structural deck so it is completely isolated from the structure. Strips are for use at terminal edges and butt edges and pads for tongue-in-groove edges and in the field of the panel.

Who Can Use It

The Acoustic Sleeper can be used in a variety of environments where floor noise is a concern and impact insulation the goal
Image of Residential BuildingsImage of HotelsImage of SchoolsImage of Office Spaces

The Benefits

The Acoustic Sleeper has a number of benefits over competitive products

  • Easy use with any type of flooring that uses panels to form the subfloor.
  • Structural discontinuity for maximum impact noise isolation with only 0.3% of floor area in contact with the structure.
  • Structure-borne noise isolation where partitions are installed on top of the panels.
  • High IIC ratings at lower cost.


The Acoustic Sleeper is ultimately effective because it creates structural discontinuity. The goal of noise isolation is to keep the material that receives the impact from contacting the actual building structure.

The profile (patent pending) and spacing of the sleepers creates a huge difference between the amount of finish floor area and the amount actually in contact with the structure. For sleeper pads spaced at 24 inches, this means 99.7% of the finish floor area actually floats above the structure, making them superior to options like mats that make continuous contact with the structure.

STC Performance Benefits

Concrete + Acoustic Sleeper + Vinyl Floor

Frequently Asked Questions

What is the Acoustic Sleeper made of?

Neoprene, a dense and resilient rubber selected for its ability to isolate vibrations.

Why does the Acoustic Sleeper have that particular profile (patent pending)?

A critical goal of isolating impact noise is to minimize contact between the finish floor surface and the supporting structure. More than 99.2% of the floor area actually floats on air with Acoustic Sleeper installations; continuous mat systems don’t do that.

Does the Acoustic Sleeper meet the International Building Code (2015)?

Yes. The Acoustic Sleeper is made of solid neoprene rubber, not wood, and IBC Section 718.2.7 does not apply. Independent tests per ASTM E2179 of sleeper pads at 24-inches under plywood performed at ΔIIC-18 and is a major component of the Impact Insulation Classification of floor systems to comply with IBC Section 1207.3. When used over a concrete deck it achieves IIC-46 even before a finish floor or ceiling is added to the underlayment system.

What configurations are available?

Acoustic Sleepers are 1-1/2″ wide, 1/4″ high, and are available as pads (1-1/2″ square) and strips (8′ long). They can be easily cut with a knife to any length.

What color is the Acoustic Sleeper?

The standard color is black.

How Does ΔIIC work to determine total system IIC values?

Conceptually, the ΔIIC values for the components of the floor/ceiling system should add together to provide the IIC for the system. However, the actual sound transmission values at different frequencies will affect the results. Better estimates can be analyzed if tests from all components are available.

In the AIA Product MasterSpec

Section 061600 "Sheathing" as an Acoustical Accessory for Underlayment Systems, under Miscellaneous Materials.

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