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Typical Properties

Typical Properties of 3/4" Extira
Termite Resistance
(10 is the highest score)
7.9 out of 10
(3-year exposure)
Rot Resistance
(0 is the highest score)
1.0
(3-year exposure)
Advanced Bond Integrity
(% strength retention)
90%
Density 47 lb/ft 3 0.753 g/cm3
MOR 2752 psi 19.0 N/mm 2
MOE 268 kpsi 1848 N/mm 2
Internal Bond 82.6 psi .57 N/mm 2
Direct Screw Withdrawal

 

Face
Edge


 

364 lbs
305 1lbs

1619 N
1356 N

24-Hour Soak
% Thickness Swell
2.6%  
Extira Board Weights

1/2" Board Thickness

4' x 8' - 69 lbs
4' x 16' - 138 lbs
2' x 16' - 69 lbs

5/8" Board Thickness

4' x 8' - 83 lbs
4' x 16'- 165 lbs
2' x 16' - 83 lbs

3/4" Board Thickness

4' x 8' - 99 lbs
4' x 16' - 198 lbs
2' x 16' - 99 lbs

1" Board Thickness

4' x 8’' - 129 lbs
4' x 16' - 259 lbs
2' x 16' - 129 lb

11/4" Board Thickness

4' x 8' - 155 lbs
4' x 16' - 309 lbs
2' x 16' - 155 lbs

Fire Rating

Extira panels have a Class C fire rating:

  • Flame Spread 120
  • Smoke Developed 95

UL Classified

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.