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Subfloor Membrane All-in-One Single Dimple Subfloor


SUPERSEAL All-In-One Subfloor is a moisture control product designed to provide 1/8 of an inch of air flow under your new flooring. It elevates you flooring up off the cold concrete providing a thermal break. It is a low-profile plastic dimpled sheet that has dime sized dimples that protrude down to the substrate. Engineered and laminate flooring can be installed directly on top. For carpet applications we recommend our double dimpled subfloor.

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  • All-in-One 3’3″ x 50’10” (166 sq. ft.) / 1m x 15.5m $119.52
  • All-in-One 6’7″ x 50’10” (332 sq. ft.) / 2m x 15.5m $239.04
  • Subfloor Tape$11.50


Standard Shipping: 3 – 7 Business Days

All shipping times are estimated and may not be 100% accurate. Shipping times may vary based on location and order size. Most orders are shipped within the next business day.

  • Easy Installation / Do it Yourself
    All-In-One is 10x faster and 90% lighter than plywood covered subfloors. It’s quick and easy to install requiring no fasteners.
  • Low Profile – 1/8″ (3mm)
    Designed to fit under most existing baseboards and door casings making it a favorite of renovators and contractors.
  • Permanent Moisture Barrier
    Made from tough long lasting plastic, All-In-One stops substrate moisture from absorbing into your floor.
  • No Mold & Mildew = Healthier Homes
    All-In-One provides under floor ventilation allowing moisture to dry and helping to prevent mold and mildew growth.

All-In-One Subfloor Membrane Install Instructions

Installing Membrane – Ensure your floor is level and free of defects prior to installation. Allow the membrane to acclimatize to room temperature prior to installation.

Unroll the All-In-One with the dimples facing down and cut to fit the area using an utility knife or scissors. Leave a ¼ inch space at walls,

Joining 2 Pieces – When joining 2 pieces, butt the factory edges of the membrane together and tape with SUPERSEAL Subfloor Tape or any moisture proof tape. (not the silver Duct Tape)




Dimpled Sheet: High Density Polyethylene (HDPE)
Compressive Strength: 7800 psf ( 350 kN/m² )
Dimple Height: 1/8″ (3mm)

All-In-One Brochure

All-In-One Install Instructions

All-In-One Spec Sheet

All-In-One Warranty

All-In-One MSDS



ALL-IN-ONE is mainly used under laminate and engineered click together flooring. For carpet installations, we recommend using our Laminate & Carpet Double Dimple Subfloor. If you want to use ALL-IN-ONE for carpet you are required to install a 5/8 inch or ¾ inch tongue and groove plywood on top of the ALL-IN-ONE first.

The difference between the ALL-IN-ONE Subfloor and the Laminate & Carpet Subfloor is:

The ALL-IN-ONE has dimples on one side that point down and the top is flat. This creates an air space of 1/8 inch between the concrete and the bottom of the membrane.

The Laminate & Carpet Subfloor has dimples on both sides that create 1/16 inch of airflow on the top and bottom of the membrane. This allows your carpet pad to breathe, and below grade moisture can dissipate throughout the entire floor area and not get trapped in the pad.

Click together Laminate and Engineered wood flooring are the most common use for this product. They can be installed directly on top of the membrane. The minimum thickness for this is 8 mm. For flooring thinner than 8 mm we recommend using our Laminate & Carpet Subfloor. If you prefer to use the All in One you are required to install a 5/8 inch or ¾ inch tongue and groove plywood on top of the ALL-IN-ONE first.

There are many different types of vinyl flooring. A rigid vinyl plank click-together flooring that is and more than 7 mm thick can be used directly on top of the ALL-IN-ONE. We recommend a plywood subfloor for any flooring thinner than 7 mm. A plywood subfloor is also recommended for sheet vinyl, peel & stick vinyl, and any glue down vinyl.

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