DMX 1-Step

The best choice for Laminate or Engineered Hardwood over concrete or wood subfloors


  • DMX 1-Step™ underlayment is 4 in 1 protection – moisture, mold, sound and thermal barrier
  • The best choice for Laminate or Engineered Hardwood over concrete or wood subfloors
  • Makes your floors warmer and provides protection against moisture and mold
  • Only dimpled underlayment certified by North American Laminate Floor Association
  • 50-year Warranty – most comprehensive warranty in the business
  • Completely waterproof on both sides
  • DMX 1-Step does not require a complicated Calcium Chloride test of the concrete slab like foam underlayments
  • Compressive strength 6,000 lbs/sq.ft. or 43 PSI
  • DMX 1-Step is not recommended with laminate or engineered flooring with an attached padding

Download – Installation instruction (PDF)

Dimensions Imperial Metric
Roll Length 27.5 feet 8.38 metres
Roll Width 44 pouces 1.12 metres
Dimple Height 5/16″ 8 mm
Roll Weight 15 lbs 6.5 kg
Sq. Ft. / Roll 100 sq.ft. 9.38 sq.ft.

DMX 1-Step™ videos

DMX 1-Steptm – Introductory
DMX 1-Steptm – Installation

Just the facts

Space-age contoured foam designed to absorb noise and vibration.

Tough HDPE membrane with unique dimple design doesn’t trap moisture like traditional foam underlayments.

Air flow and air circulation beneath your finished floors allows moisture to evaporate. No moisture = No mold.


“I completed approximately 3 months of research on Underlayments as I wanted to ensure that my floor were protected from moisture. I did my research online and came across DMX 1-Step. I found the videos helpful and noticed an increase … Continued

Brian H. Harrisburg, PA

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“My wife and I hired a general contractor to finish our unfinshed basement in our newly built home. In order to save money I decided that I would handle the subfloor and floor installation in order to save labour costs … Continued


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“We installed DMX 1-Step over our concrete basement floor before installing laminate over it. It was fun & easy to work with. We’ve found that not only does it keep the floor dry it is also much warmer. We went … Continued

Brad P – Winnipeg, MB

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“We wanted to add useable living space to our existing home by renovating the basement. We were concerned about moisture getting in as well as the comfort and warmth of a laminate in the basement. 1-Step has made the floors … Continued

S. Shabaz

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