To calculate lineal feet of trim, (e.g. base, quarter round) simply measure each wall in the room and add up the lineal feet. For ease of installation use whole pieces where ever possible. Allow extra for cutting each corner and splicing pieces together.

rooms combined to display linear feet calculations

To determine the square footage of a square or rectangular room, measure the length and width of the room in feet or inches and enter the values in Area 1 of the calculator below.  For irregularly shaped areas or multiple rooms, it is helpful to draw a diagram and divide the room up into sections. Treat each section as a separate area, as in this illustration. Input the measurements of each area below to see the total SQFT needed.

rooms combined to display sqft calculations

Area Length
Area Width
Area 1
Area 2
Area 3
Area 4

SKU: 10049156

Delta-Protec Basement/Slab Underlayment 100 sq.ft.

$99 smart rate delivery for orders up to 500 sq ft!
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Delta-Protec Basement/Slab Underlayment 100 sq.ft.

To turn your basement into a usable, livable space, proper moisture protection is necessary. Moisture barriers are often installed only on the walls of a basement and not the floor. Moisture diffuses from the area of high concentration below for the floor slab, to the low area of concentration in the basement. 

DELTAź-PROTEC is a dimpled, heavy-duty, green plastic membrane for basement and slab-on-grade floors that helps to keep moisture out of your basement. The membrane provides a significantly more comfortable floor.

DELTAź-PROTEC protects sensitive materials by providing a reliable capillary break and vapor barrier. In a conventional basement, dry air in the living space acts as a "magnet" for water vapor migrating up through the concrete. The air gap created by DELTAź-PROTEC allows the water vapor pressure above and below the concrete slab to equalize, while preventing the moisture from migrating further inwards. Hence, moisture does not affect the flooring material and your basement area stays dry and comfortable. The membrane also provides a thermal break, which increases the comfort in your basement and makes the floor feel warmer.

Product Details:
- Air-gap membrane
- Composed of a special High-Density Polyethylene (HDPE)

Product Benefits:
- Provides a reliable capillary break and vapor barrier, ensuring a dry, livable basement.
- Creates a thermal break, making a basement floor feel warmer.
- Impact-resistant HDPE makes this product extremely tough and rugged.
- Outstanding compressive strength of >4500 lb/sf.
- Minimal reduction in head room (8mm).
- Installed dimple side down, a ventilated air space is created above the slab, allowing equalization of water vapor pressure.
- Seams are taped with seam tape to ensure that moisture cannot migrate inwards through the joint areas.
- DELTAź-PROTEC topped with plywood sheets will allow a variety of floor coverings to be installed, including vinyl flooring and hardwood flooring.

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Technical Data Sheet