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[CCMC 13378-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as both exterior decking planks and as stair treads in accordance with the conditions and limitations stated in this evaluation, comply with the following code:

National Building Code of Canada 2010

ID Code provision Solution type
09-03-02-09-00-0-009.3.2.9. Termite and Decay ProtectionAlternative
09-04-02-03-00-0-009.4.2.3. Platforms Subject to Snow and Occupancy LoadsAlternative
09-04-03-01-00-0-009.4.3.1. DeflectionsAlternative
09-23-15-05-00-0-009.23.15.5. Subfloor Thickness or RatingAlternative

Ontario Building Code

Ruling No. 10-16-253 (13378-R) authorizing the use of this product in Ontario, subject to the terms and conditions contained in the Ruling, was made by the Minister of Municipal Affairs and Housing on 2010-08-05 (revised 2017-03-22) pursuant to s.29 of the Building Code Act, 1992 (see Ruling for terms and conditions). This Ruling is subject to periodic revisions and updates.

The above opinion(s) is/are based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.

Product information

Product names

  • DecKorators® Composite Deck Board
  • Marine Composite Deck Board

Product description

The products are solid deck boards intended for use as exterior decking installed over traditional structural wood framing (see Figure 1 and Figure 2). Comprised of a wood, thermoplastic composite made primarily from wood fibre, virgin and reclaimed polyethylene and talc, the boards are rectangular in shape with rounded corners and slotted edges.

The DecKorators boards are solid deck boards with rounded corners and/or slotted edges. The Marine boards are embossed with a wood grain finish on one side and a combed finish on the other.

The DecKorators boards have a cap made of high-density polyethylene (HDPE).

The DecKorators boards have an average thickness of 21.2 mm and an average width of 139 mm. The Marine boards have an average thickness of 31.75 mm and an average width of 138.18 mm.

Isometric profile drawing of the deck board with hidden fastener system detailing the minimum spacing between sides of planks, minimum joists per plank, maximum joist spacing, hidden plastic fasteners and minimum spacing between ends of the planks.
Figure 1. DecKorators and Marine Wood/Plastic Composite Deck Board with hidden fastener system
  1. DecKorators and Marine deck boards
  2. 6 mm minimum spacing between sides of the planks, depending on temperature at installation
  3. Minimum of three joists per plank
  4. Maximum joist spacing: DecKorators – 400 mm o.c. Marine – 600 mm on centre (o.c.)
  5. Joist designed to support applicable loads
  6. Hidden plastic fasteners provided by manufacturer
  7. 1.6 mm minimum spacing between ends of the planks, depending on length of plank and temperature at installation

 

Isometric profile drawing of the deck board with fasteners detailing the minimum spacing between sides and ends of planks, minimum joists per plank, maximum joist spacing and number of fasteners per support.
Figure 2. DecKorators and Marine Wood/Plastic Composite Deck Board with fasteners
  1. 1.6 mm minimum spacing between ends of the planks, depending on length of plank and temperature at installation
  2. 6 mm minimum spacing between sides of the planks, depending on temperature at installation
  3. Minimum of three joists per plank
  4. Maximum joist spacing: DecKorators – 400 mm o.c. Marine – 600 mm o.c.
  5. Joist designed to support applicable loads
  6. Two 63.5-mm-long fasteners per support

 

Profile drawing of a Marine deck board.

Figure 3. Marine profile


 

Profile drawing of a DecKorators solid deck board, also known as DecKorators Classic-Solid, DecKorators Vista-Solid and DecKorators Heritage-Solid.

Figure 4. DecKorators solid profile (also known as DecKorators Classic-Solid, DecKorators Vista-Solid and DecKorators Heritage-Solid)


 

Profile drawing of a DecKorators slotted deck board, also know as DecKorators Classic-Slotted, DecKorators Vista-Slotted and DecKorators Heritage-Slotted.

Figure 5. DecKorators slotted profile (also known as DecKorators Classic-Slotted, DecKorators Vista-Slotted and DecKorators Heritage-Slotted)

Manufacturing plant

This evaluation is valid only for products produced at the following plant:

Product namesManufacturing plant
Prairie du Chien, WI, US
DecKorators® Composite Deck BoardProduct evaluated by the CCMC
Marine Composite Deck BoardProduct evaluated by the CCMC

Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC

  Conditions and limitations

The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.

  • When the products are installed in conjunction with traditional structural wood framing designed to carry the applicable loads, the products may be used as exterior decking and as stair treads in combustible constructions for light duty applications such as residential occupancies that fall within the scope of Part 9, Housing and Small Buildings, of the NBC 2010, or for light commercial applications within the scope of Part 4, Structural Design, of Division B of the NBC 2010.
  • Slip-resistance strips shall be provided in accordance with Article 9.8.9.6, Finish for Treads and Landings, of Divisions B of the NBC 2010.
  • The products must be installed in accordance with the manufacturer’s usage guidelines for the Canadian market and in accordance with the following limitations:
    • The planks must be installed with supports spaced at no greater than 400 mm o.c. for DecKorators, and 600 mm o.c. for Marine.
    • The products must be fastened to the wood joists with fasteners conforming to Article 9.23.3.1., Standards for Nails and Screws, of Division B of the NBC 2010. The fasteners must have a corrosion protection ⁠coating⁠(1)⁠⁠ or be made of stainless steel. The planks must be fastened with a minimum of two fasteners of 63.5 mm in length per support.
    • The products can also be installed using a hidden plastic fastening system as supplied by the manufacturer.
    • The products must be gapped end-to-end based on the length of the plank and the temperature at installation. The end-to-end gapping must be a minimum of 1.5 mm for every 11°C difference between the installation temperature and the hottest expected temperature. The width-to-width gapping must be 6 mm.
    • The products are not to be considered equivalent to dimensional lumber.
    • The products may be installed by a person familiar with the products installation guide.
    • The products are permitted to be installed where decay and termite resistance protection is required as per Article 9.3.2.9., Termite and Decay Protection, of Division B of the NBC 2010.
  • Where possible, the label or packaging of the products must be identified with the manufacturer’s name or logo and the phrase “CCMC 13378-R.”

 

  Technical information

This evaluation is based on demonstrated conformance with the following criteria:

Evaluation requirements
Criteria number Criteria name
CCMC-TG-067314.01-10ACCMC Technical Guide for Wood Thermoplastic Composite Lumber Exterior Decking

The evaluation holder has submitted technical documentation for the CCMC evaluation. Testing was conducted at laboratories recognized by the CCMC. The corresponding technical evidence for this product is summarized below.

Performance requirements
Table 1. Results of testing the basic physical and mechanical properties of the products
Property Unit Requirement Result
Dimensional change coefficient of linear expansion (thermal) °C−1 ≤ 2 × 10−5 1.86−6
coefficient of linear expansion (swelling) % ≤ 0.5 (by 80% of specimens) 0.26
Strength and stiffness modulus of elasticity (MOE) MPa ≥ 750 3 418
Strength and stiffness modulus of rupture (MOR) ≥ 9 21
Strength and stiffness impact resistance J/m ≥ 53.4 22.2Footnote (1)
Strength and stiffness hardness kN ≥ 1.8 10
Strength and stiffness creep, recovery and load duration % ≤ 25% for creep 51.4Footnote (2)
Strength and stiffness creep, recovery and load duration % ≥ 75% for recovery ≥ 92.2
Strength and stiffness creep, recovery and load duration % No specimen failure in Step 6 No specimen failureFootnote (2)
Strength and stiffness impact resistance (after weathering) % ≥ 75% of non-weathered value 98.2
Strength and stiffness MOE and MOR (after accelerated aging) % ≥ 50% of non-aged value 97.3 (MOE) 104 (MOR)
Fastener holding capacityFootnote (3) : fastener withdrawal strength proprietary clip system with screws only N ≥ 600 2 813 (R),Footnote (4) 3 774 (WR)
proprietary clip system N ≥ 600 1 123 (R), 1 147 (WR)
deck screws N ≥ 600 3 691 (R), 3 762 (WR)
Fastener holding capacityFootnote (3) : lateral fastener strength deck screws N ≥ 720 4 097 (R), 3 830 (WR)
proprietary clip system N ≥ 720 1 313 (R), 1 287 (WR)

 

Table 2. Results of testing the concentrated static load for DecKoratorsFootnote (1)
Property Requirement ResultFootnote (2)
Minimum ultimate load (kN) Maximum deflection under 0.89 kN load for 400 mm span (mm) Ultimate load (kN) Deflection under 0.89 kN load (mm)
Concentrated load decking at 50°C 2.45 2.0 3.03 3.23Footnote (3)
decking at 20°C 2.45 2.0 4.18 1.96
decking at ⁠⁠–⁠⁠35°C 2.45 2.0 5.31 1.30

 

Table 3. Results of testing the concentrated static load for MarineFootnote (1)
Property Requirement ResultFootnote (2)
Minimum ultimate load (kN) Maximum deflection under 0.89 kN load for 600 mm span (mm) Ultimate load (kN) Deflection under 0.89 kN load (mm)
Concentrated load decking at 50°CFootnote (3) 2.45 2.8 3.78 3.22Footnote (4)

 

Table 4. Results of testing the impact load for DecKorators Footnote (1)
Property Requirement ResultFootnote (2)
Minimum ultimate load following impact load of 100 N·m (kN) Maximum deflection under 0.89 kN load following impact load for 400 mm span (mm) Load of 1.78 kN following impact load of 100 N·m Deflection under 0.89 kN load following impact load (mm)
Impact load decking at 50°C 1.78 2.0 No break 2.42Footnote (3)

 

Table 5. Results of testing the impact load for MarineFootnote (1)
Property Requirement ResultFootnote (2)
Minimum ultimate load following impact load of 100 N·m (kN) Maximum deflection under 0.89 kN load following impact load for 600 mm span (mm) Load of 1.78 kN following impact load of 100 N·m Deflection under 0.89 kN load following impact load (mm)
Impact load decking at 50°C 1.78 2.8 No break 3.74Footnote (3)

 

Table 6. Results of testing the durability of the products
Property Requirement Result
MOE and MOR Mean percentage loss in MOE and MOR after UV exposure.Footnote (1) Accelerated agingFootnote (2) must be less than or equal to spruce lumber. Pass

 

Table 7. Results of testing the slip resistance properties of the products
Property Reference value Result
Slip resistance (longitudinal) dry condition > 0.5 ASTM F 1679-04, "Standard Test Method for Using a Variable Incidence Tribometer (VIT)" Pass
wet condition FailFootnote (1)

 

Table 8. Results of testing the decay resistance properties of the products
Property Requirement Result
Percentage loss in weight and compressive strength Mean percentage loss in weight and compressive strength after exposure to decay-causing fungi must be equal or better than preservative-treated wood conforming to CAN/CSA-O80.1-M97, "Preservative Treatment of All Timber Products by Pressure Processes." PassFootnote (1)

 

Table 9. Results of testing the termite resistance properties of the products
Property Requirement Result
ASTM D 3345 rating Rating must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1-M97. PassFootnote (1)

Flame-spread rating and flammability

The flame-spread rating of the products is 81, which is in accordance with CAN/ULC-S102.2-M88, “Standard Method of Test for Surface Burning Characteristics of Flooring, Floor Covering, and Miscellaneous Materials and Assemblies,” whose requirement is < 200. The smoke development rating of the products is 100.

 

Administrative information

Use of Canadian Construction Materials Centre (CCMC) assessments

This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).

It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.

Disclaimer

The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.

This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.

Language

Une version française de ce document est disponible.
In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2023

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

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Code compliance as an acceptable solution

Code Compliance via Acceptable Solutions

If a building design (e.g. material, component, assembly or system) can be shown to meet all provisions of the applicable acceptable solutions in Division B (e.g. it complies with the applicable provisions of a referenced standard), it is deemed to have satisfied the objectives and functional statements linked to those provisions and thus to have complied with that part of the Code.

National Building Code of Canada, Sentence A-1.2.1.1.(1)(a)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Acceptable Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

  • complying with the applicable acceptable solutions in Division B, or
  • using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

The CCMC assesses compliance with Canadian building, energy and safety codes, and is trusted by over 6,000 regulators across Canada.

Code compliance as an alternative solution

Code Compliance via Alternative Solutions

Where a design differs from the acceptable solutions in Division B, then it should be treated as an "alternative solution." A proponent of an alternative solution must demonstrate that the alternative solution addresses the same issues as the applicable acceptable solutions in Division B and their attributed objectives and functional statements. However, because the objectives and functional statements are entirely qualitative, demonstrating compliance with them in isolation is not possible. Therefore, Clause 1.2.1.1.(1)(b) identifies the principle that Division B establishes the quantitative performance targets that alternative solutions must meet. In many cases, these targets are not defined very precisely by the acceptable solutions [...] Nevertheless, Clause 1.2.1.1.(1)(b) makes it clear that an effort must be made to demonstrate that an alternative solution will perform as well as a design that would satisfy the applicable acceptable solutions in Division B—not “well enough” but “as well as.”

National Building Code of Canada, Sentence A-1.2.1.1.(1)(b)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Alternative Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

  • complying with the applicable acceptable solutions in Division B, or
  • using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

The CCMC assesses compliance with Canadian building, energy and safety codes, and is trusted by over 6,000 regulators across Canada.

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