Call us toll free: 800.255.0785
Top notch Multipurpose WordPress Theme!

Extira vs MDF

Extira is a Revolutionary Product for that Performs Better than MDF

Extira panels may look like MDF, but they don’t perform like it. Different ingredients and a patented and proprietary manufacturing process lead to a superior performance.

Extira is the Best Alternative

    Extira MDF Plywood MDO PVC
Moisture Resistance Good Poor Poor Good Best
Rot Resistance Best None None None Best
Weathering3 Good Poor Poor Good Good
UV Resistance3 Good Good Best Good Poor2
Warranty 10-year 30 Days None Varies 5-year to Lifetime1
Machineability Good Good Poor Poor Varies
Paintability3 Best Best Good Best Poor
1 Non-transferrable
2 PVC may have UV-related issues when painted a dark color
3 Ratings reflect uncoated material ranking. Extira must be field finished before use

Performs Better Than Wood or MDF

  Extira Panels Typical MDF
  Application Exterior Interior

Wood, phenolic resins, zinc borate, wax and other ingredients.

No added urea formaldehyde.

Wood, urea formaldehyde resin.

May emit formaldehyde.

  Manufacturing Process

Proprietary, patented steam injection technology using TEC™ manufacturing process.

Pressed between hot platens in an open press without steam injection.


Consistent density.

Resists moisture, rot and termite. Made for exterior performance.

Not uniformly dense throughout.

No termite or rot protection MR MDF (moisture resistant MDF) offers moisture resistance for interior use only.

  Warranty  10 years   30 days

Extira is Stronger and Performs Longer

  Extira 3/4" MEDEX 3/4" MR 50 Grade 110 PER AnSI 208.2-2002 Wood
  Thickness Swell (TS) 2.3%


5% max NA
  Advanced Bond Integrity
(% strength retention)

ASTM D1037-96

50% min NA
  Termite Resisitance
(10 is the highest score)

7.9 out of 10
(3 year exposure)1

None None

None, 0.01

  Rot Resistance
(0 is the highest score)

1.0 out of 5
(3 year exposure)1

None None

None, 5.01

1 Independent testing per AWPA E-7 and AWPA E-16
2 Published material by Medex

JELD-WEN, Inc. manufactures another product, MiraTEC trim, using the same ingredients and manufacturing technology, which has performed exceptionally well since its introduction in 1998.

For Best Results

For best results, allow Extira to acclimate to the conditions it will be used in for 48 to 72 hours before final application or fabrication of a product using Extira. When designing products made with Extira, always allow for the natural expansion or contraction of Extira due to changes in its moisture content and assess interaction with other components in the final product. Like other wood composite material, the moisture content of Extira will change based on the ambient relative humidity and environmental conditions to which it is exposed.