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Results of Testing of Basic Physical and Mechanical Properties
Property		Unit	Requirement	Result^{Footnote (1)} ^{Footnote (2)}
Dimensional change	coefficient of linear expansion (swelling) oven-dry to vacuum pressure soak	%	≤ 0.5, by 80% of specimens	0.06
Strength and stiffness	modulus of elasticity (MOE) span-to-depth ratio within 18 to 21	MPa	≥ 750	1 449
Strength and stiffness	modulus of rupture (MOR) span-to-depth ratio within 18 to 21	MPa	≥ 9	24.42
Strength and stiffness	creep, recovery and load duration	%	≤ 25 for creep	11.3
Strength and stiffness	creep, recovery and load duration	%	≥ 75 for recovery	96.9
Strength and stiffness	creep, recovery and load duration	%	No failure	Pass
Strength and stiffness after aging	Weathering - impact resistance	%	≥ 75 of non-weathered value	103
Strength and stiffness after aging	accelerated aging - MOE	%	≥ 50 of non-aged value	106
Strength and stiffness after aging	accelerated aging - MOR	%	≥ 50 of non-aged value	100
Strength and stiffness after aging	fastener holding capacity - nail withdrawal strength	N	≥ 600	3 219
Strength and stiffness after aging	fastener holding capacity - lateral nail strength	N	≥ 720	2 098

Results of Testing of 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	3.02
	decking at 20°C	minimum ultimate load (kN)	≥ 2.45	4.03
	decking at 35°C	minimum ultimate load (kN)	≥ 2.45	5.94
	decking at 50°C	maximum deflection under 0.89 kN load (mm)	≤ 2.0	5.32^{Footnote (2)}
	decking at 20°C	maximum deflection under 0.89 kN load (mm)	≤ 2.0	3.19^{Footnote (3)}
	decking at 35°C	maximum deflection under 0.89 kN load (mm)	≤ 2.0	2.31^{Footnote (3)}
Following impact load of 102 N·m	decking at 50°C	minimum ultimate load (kN)	≥ 1.78	no break
Following impact load of 102 N·m	decking at 50°C	maximum deflection under 0.89-kN load (mm)	≤ 2.0	3.57^{Footnote (2)}

Results of Testing of Durability
Property	Requirement	Result
Property	Requirement	SPF Lumber	ChoiceDek® MoistureShield®Elite
Bending stiffness	Mean percentage loss in bending modulus of elasticity (MOE) after ultraviolet (UV) exposure^{Footnote (1)} and accelerated aging^{Footnote (2)} must be less than or equal to spruce lumber	30.8%	31.3%^{Footnote (3)}
Bending strength	Mean percentage loss in bending stress (MOR) after UV exposure^{Footnote (1)} and accelerated aging^{Footnote (2)} must be less than or equal to spruce lumber	28.7%	25.8%

Results of Testing of Decay and Termite Resistance
Property	Requirement	Result
Decay resistance % loss in weight	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^{Footnote (1)}
Decay resistance compressive strength	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^{Footnote (1)}
Termite resistance	Rating must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1	Passed^{Footnote (1)}

Results of Testing of Performance Under Concentrated Static Load - Stair Tread
Property			Requirement	Result^{Footnote (1)}
Concentrated static load	stair tread	minimum ultimate load (kN)	5^{Footnote (2)}	5.44
Concentrated static load	stair tread nosing	minimum ultimate load (kN)	5^{Footnote (3)}	7.04
Concentrated static load	stair tread	maximum deflection under 1 kN (mm)	0.75	2.50^{Footnote (4)}
Concentrated static load	stair tread nosing	maximum deflection under 1 kN (mm)	0.75	2.50^{Footnote (4)}

Results of Testing of Additional Performance Data
Property	Unit	Reference value	Result
Coefficient of linear expansion (thermal) - longitudinal	cm/cm/°C	≤ 2 x 10^-5	3.63 x 10⁻⁵^{Footnote (1)}
Impact resistance (Izod impact, notched)	J/m	≥ 53.4	29.9^{Footnote (2)}
Hardness (11.28-mm-diam ball)	kN	≥ 1.8	4.724
Slip resistance (longitudinal) - wet condition	slip index	≥ 0.5	0.38^{Footnote (3)}
Slip resistance (longitudinal) - dry condition	slip index	≥ 0.5	0.33^{Footnote (3)}

Notes:

Results provided in this table do not invalidate CCMC's opinion concerning the products' compliance with the NBC 2015.

Footnote 1

The manufacturer's gapping installation instructions must address the linear expansion values.

Return to footnote 1 referrer

Footnote 2

The Izod impact is a small-scale test used to characterize the material. Very low performance values show a sensitivity to a loss of impact strength when the product is significantly damaged by a notch, cut or split. The results of the large-scale impact floor tests are the primary performance indicator with respect to floor impact loads, and the product passes the large-scale impact floor tests.

Return to footnote 2 referrer

Footnote 3

Having fallen to 0.38 under the dry condition and 0.33 under the wet condition, no surface finishes met the 0.5 criterion. This criterion may not meet all occupant expectations. The manufacturer may be contacted for further information.

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