|
|
|
|
|
Modulus
of Rupture (Flexural Strength) |
ASTM D6109 |
2,682
psi (ambient)
1,476 psi (130° F)
3,079 psi (minus 20° F) |
|
Modulus
of Elasticity (flexural) |
ASTM D6109 |
367,000
psi |
|
Compression
(a) |
ASTM D6108 |
3,479
psi |
|
Self Ignition
Temperature |
ASTM D1929 |
806° F |
|
Flame Spread
Index |
ASTM E84 |
100 |
|
Smoke Developed
Index |
ASTM E84 |
165 |
|
Water Absorption |
ASTM D1037 |
1.48%
(24 hr immersion)
(24% for
pressure treated lumber) [24 hr]
2.94%
(7 day immersion) |
|
Moisture
Expansion |
|
24 hr
- 0.01% (sidewise)
7 day
- 0.095% (sidewise)
40 day - length - less than 0.05%
40 day - width 0.5%
40 day - depth 2.5% |
|
Moisture
Content (brushed surface) |
ASTM D1037 |
0.6% |
|
Thermal
Expansion/Contraction |
ASTM E228 |
3.58 X
10 -5/° F |
|
Fungus Resistance
(soil block cultures) |
ASTM D1413 |
White-rot,
zero effect
Brown
rot - zero effect |
|
Termite
Resistance |
ASTM D3345 |
No attack
(Block
ratings 10) |
|
Specific
Gravity |
ASTM D1037 |
1.20 g/cm3 |
|
Tensile
Strength |
ASTM D143 |
1,127
psi. |
|
Tensile
Modulus |
ASTM D143 |
178,000
psi. |
|
Shear Strength |
ASTM D905 |
1,223
psi. |
|
Static Coefficient
of Friction Dry, Leather |
ASTM D2047 |
0.53/.55 |
|
Static Coefficient
of Friction Wet, Leather |
ASTM D2047 |
0.85-0.90/did
not slip |
|
Nail Withdrawal
(only 1/4-inch thick flat panel of the hollow
profile was penetrated). |
ASTM D1761 |
20 lb
1/4" (6d common nail)
30 lb 1/4" (Dickson floor nail)
40 lb 1/4" (16d treated LBR nail)
100 lb 1/4" (4d Ring Shank nail) |
|
Direct Nail
Pull
Through Test |
ASTM D1037 |
206 lbs
(8d, 2-1/2" stainless spiral thread nail, head
D=0.276-in) |
|
Screw Withdrawal
(b) |
ASTM D1037 |
204 lb.
1/4 |
|
Abrasion
Resistance
(brushed surface) |
ASTM D4060 |
3.02 g/1000
cycles |
|
Hardness |
ASTM D143 |
678 lbs.
(flange)
298 lbs. (web) |
|
Puncture
Resistance |
ASTM D3763
(modified) |
592 lbs |
|
Deflection
at Midspan |
BOCA/ICBO/ICC
requirement |
Passes
24" on center |
|
Deflection
Recovery |
BOCA/ICBO/ICC
requirement |
95% (passes)
(75% - requirement) |
|
Weight (5/4
x 6 in) |
|
1.80 lbs/ft |
|
Weathering |
ASTM G155 |
Mahogany,
Cedar and Driftwood - negligible fading after
6,000 hrs at 102 min/18 min cycle regime (UV and
UV/water spray) |
|
Effect of
weathering on flexural strength (on modulus of
rupture) |
ASTM G155
ASTM D6109 |
Negligible |
|
Effect of
maximum water absorption on flexural strength |
ASTM D6109 |
Negligible |
Effect of
triple freeze-thaw cycles on flexural strength |
ASTM D6109 |
Negligible |
Stair tread test (300lbs concentrated load at midspan with a deflection not exceeding span/180) |
AC 174 |
Passed |
NOTES:___________________________________
(a) Parallel to length. An average figure
for all three decking profiles (S4S 2x6; tongue
& groove 2x6; S4S 2x8).
(b) For 1" #10 screw type AB pulling
out of a flat area of a hollow decking board,
with wall thickness 0.25".
|
For more information, please consult GeoDeck’s
ICC-ES Legacy Report No. 21-71, former BOAC Report No.
21-71. Click
here to download a PDF of the report.
