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Basic Physical and Mechanical Properties
Property		Unit	Requirement	Result
Dimensional Change Coefficient of linear expansion (thermal)	longitudinal	°c⁻¹	< 2x10⁻⁵	2.92x10⁻⁵^{Footnote (1)}
	cross-sectional	°c⁻¹	< 2x10⁻⁵	4.28x10⁻⁵^{Footnote (1)}
Dimensional Change Coefficient of linear expansion (swelling)	oven-dry to vacuum pressure soak	%	< 0.5, by 80% of specimens	−0.08
Strength and Stiffness - Flexural rigidity (EI)		kN·mm²	> 300 000	350 000
Strength and Stiffness - Moment capacity (MR)		N·mm	> 190 000	218 000
Strength and Stiffness - Impact resistance (IZOD impact, notched)		J/m	> 53.4	22.4^{Footnote (2)}
Creep, recovery and load duration		%	< 25 for creep	27^{Footnote (3)}
Creep, recovery and load duration		%	> 75 for recovery	86
Creep, recovery and load duration		%	No failure in step 6	Passed
Strength and Stiffness After Aging Weathering	impact resistance	%	> 75 of non‑weathered value	101
Strength and Stiffness After Aging Accelerated aging	% retention flexural rigidity	%	> 50 of non-aged value	87
Strength and Stiffness After Aging Accelerated aging	% retention moment capacity	%	> 50 of non-aged value	95
Screw withdrawal - redry condition		N	≥ 600	2026
Screw withdrawal - wet/redry condition		N	≥ 720	2032
Lateral screw strength - redry condition	parallel	N	> 700	1453
Lateral screw strength - redry condition	perpendicular	N	> 700	2369
Lateral screw strength - wet/redry condition	parallel	N	> 700	1454
Lateral screw strength - wet/redry condition	perpendicular	N	> 700	1194
Flame-spread rating		No unit	≤ 200	85 60 (Cap)
Smoke developed classification		No unit	Report	380 310 (Cap)

Performance Under Both Concentrated Static Loads and Impact Loads
Property			Requirement	Result^{Footnote (1)}
Concentrated static load	decking at 50°C	minimum ultimate load (kN)	≥ 2.45	4.89
Concentrated static load	decking at 20°C	minimum ultimate load (kN)	≥ 2.45	4.56
Concentrated static load	decking at 50°C	maximum deflection under 0.89-kN load (mm)	≤ 2.0	1.59
Concentrated static load	decking at 20°C	maximum deflection under 0.89-kN load (mm)	≤ 2.0	1.21
Following impact load of 102 N·m	decking at 50°C	minimum ultimate load (kN)	≥ 1.78	1.78
Following impact load of 102 N·m	decking at 50°C	maximum deflection under 0.89-kN load (mm)	≤ 2.0	1.58

Durability
Property	Requirement	Result
Property	Requirement	SPF Lumber	"Accuspan Deck Board"
Bending stiffness	Mean percentage loss in bending stiffness (EI) after ultraviolet (UV) exposure and accelerated aging must be less than or equal to spruce lumber	22.5%	9.6% 13.8% (Cap)
Bending strength	Mean percentage loss in moment capacity (MR) after UV exposure and accelerated aging must be less than or equal to spruce lumber	24.5%	15% -0.7% (Cap)

Decay and Termite Resistance
Property	Requirement	Result
Decay resistance	Mean percentage loss in weight and compressive strength after exposure to decay-causing fungi must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1-M97, "Preservative Treatment of All Timber Products by Pressure Processes"	Passed
Termite resistance	Rating must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1	Passed

Performance Under Concentrated Static Load – Stair Tread
Property		Requirement		Result^{Footnote (1)}
Property		Minimum Ultimate Load (kN)	Maximum Deflection Under 1 kN (mm)	Applied Ultimate Load (kN)	Deflection Under 1 kN (mm)
Concentrated load	stair tread	5^{Footnote (2)}	0.75	5.75	1.07^{Footnote (4)}
Concentrated load	stair tread nosing	5^{Footnote (3)}	0.75	7.5	1.07^{Footnote (4)}

Additional Performance Data^{Footnote (1)}
Property		Slip Index Reference value	Result
Slip resistance	dry condition	≥ 0.5	0.57 0.36 longitudinal (Cap) 0.46 transverse (Cap)
Slip resistance	wet condition	≥ 0.5	0.53 0.30 longitudinal (Cap) 0.39 Transverse (Cap)

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