[CCMC 13314-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Woodtone Specialties Inc.
4175 Crozier Road
|Code compliance:||NBC 2015|
In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.Learn more about CCMC recognition
Code compliance opinion
It is the opinion of the Canadian Construction Materials Centre that RealPost™ and AbsolutePost™, when used as glued-laminated timber columns in accordance with the conditions and limitations stated in this evaluation, complies with the following Canadian code(s):
The product is manufactured by laminating graded kiln-dried Spruce-Pine-Fir (S-P-F) No. 2 for RealPost™, or western red cedar (WRC) SS for AbsolutePost™. The lamina is processed with a patented profile and then laminated together at right angles in custom-built presses to create a hollow core column that can be either 89 mm × 89 mm (4 in. × 4 in.), 140 mm × 140 mm (6 in. × 6 in.) or 184 mm × 184 mm (8 in. × 8 in.), as shown in Figure 1. Once the pressing is complete, the column is finish profiled and trimmed to length.
Geometric properties are listed in the table below:
|Image number (in Figure 1)||Section (mm)||Outer dimensions (mm)||Inner dimensions (mm)|
|1||89 ⨯ 89||88.9 ⨯ 88.9||17.3 ⨯ 17.3|
|2||140 ⨯ 140||139.7 ⨯ 139.7||68.3 ⨯ 68.3|
|3||184 ⨯ 184||184.2 ⨯ 184.2||111.0 ⨯ 111.0|
Exterior grade phenol-resorcinol adhesives are used for finger-jointed lumber and laminating of the product. The adhesive complies with CSA O112.7-M, “Resorcinol and Phenol-Resorcinol Resin Adhesives for Wood (Room- and Intermediate-Temperature Curing)” (see CCMC 13213-L).
Intertek Testing Services provides third-party inspection and certification for this product.
This evaluation is valid only for products produced at the following plants:
- Armstrong, British Columbia, Canada
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.
The scope of this CCMC evaluation is limited to the product being used for dry service applications only. When the product is considered for wet or semi-wet service applications, a professional engineer with an expertise in wood science must determine, in consultation with the manufacturer, the appropriate proprietary strength adjustment factor (service condition factor) for the specific application. In accordance with Clause 188.8.131.52 of CSA O86-14, where glued-laminated timber members that could be exposed to free moisture are adequately protected, an intermediate value of service condition factor between 1.00 and wet service condition factor may be used.(1)(2)
- All lumber, wood-based panels and proprietary engineered wood products are intended for dry service conditions. “Dry service conditions” is defined as the in-service environment in which the average equilibrium moisture content (MC) of lumber is 15% or less over a year and does not exceed 19% at any time. For a column that is used in exterior construction, wet service condition should be assigned by default, unless determined otherwise by engineering judgement. Where glued-laminated timber members that could be exposed to free moisture are adequately protected, semi-wet service condition may be assigned. During construction, all wood-based products should be protected from the weather to ensure that the 19% MC is not exceeded, in accordance with Article 184.108.40.206., Moisture Content, of Division B of the NBC 2015.
- Canadian Highway and Bridge Design Code (CSA S16-19) commentary provides information on best practices to maintain a dry service condition in timber elements:
- Minimize the use of vertical fasteners, and if vertical fasteners are used, protect the localized area of the fasteners from water penetration.
- Eliminate areas that can trap and hold moisture against timber elements. Some examples of ways to eliminate high-moisture zones in timber elements include detailing connection designs with drain holes, placing an impermeable barrier between the end of timber posts and concrete sills, keeping bearing areas clean and free from vegetation and soil, and pointing deck drains away from structural elements.
- If a coating is required, timber structures should be coated with a stain or paint containing 29% solid or less.
The product is intended for use in construction as an alternative to a solid sawn lumber column. Proprietary design values presented for the product are to be designed by professional engineers in accordance with CSA O86-14, “Engineering Design in Wood,” and Part 4, Structural Design, of Division B of the NBC 2015, for structural applications in dry service conditions.
When the product is used, the installation must be in accordance with the content of Woodtone Specialties Inc.’s publications entitled “Installation Instructions - RealPost™,” dated July 2019, “Installation Instructions - AbsolutePost™,” dated July 2019, and with the installation guidelines noted in this Report for those applications falling within the scope of this Report:
- Bases, column caps and fasteners are required when the column is designed for its intended use.
- The product must be loaded axially; no load perpendicular to the column axis is allowed except for transverse wind load, and it is limited in locations where the 1-in-50 hourly wind pressure is less than 0.7 kPa.
- The product may be used vertically or under an angle as structural posts. Connection methods may include nails, screws, lag screws and brackets.
- The product may only be notched with the permission of Woodtone Specialties Inc.
- Through-bolting is not permitted on structural connections of the product. Pilot holes are required for lag screws. The maximum permitted lag screw diameter is 12.7 mm (½ in.).
- Holes must be limited to 15 mm (5/8 in.) for 89 mm × 89 mm posts, and 19 mm (3/4 in.) for 140 mm × 140 mm and 184 mm × 184 mm posts. For multiple holes, they are to be centered on the post and spaced vertically at least 203 mm (8 in.) apart. Holes, in addition to those required for installation of approved column caps and bases, are not permitted within 203 mm (8 in.) of the top or bottom of the post.
- The product is to be stained or primed in accordance with the manufacturer’s instructions.
- The ends of the product are factory-sealed to protect them from water damage. Trimmed material will require end-sealing with an alkyl oil primer or equivalent.
- Non-loadbearing RealPost™ and AbsolutePost™columns may be the size and length produced by the manufacturer.
The design of the product requires engineering on a case-by-case basis. All drawings or related documents must bear the authorized seal of a professional engineer skilled in wood design and licensed to practise under the appropriate provincial or territorial legislation. The engineer must design in accordance with the requirements of CSA O86 and Part 4 of Division B of the NBC 2015, and may use as a guide the “Engineering Guide for Wood Frame Construction,” published by the Canadian Wood Council.
Note: The pre-engineered load tables found in Woodtone’s product literature are beyond the scope of this evaluation.
Engineering support provided by the manufacturer
Woodtone Specialties Inc. provides engineering support and may be consulted at:
The product must be identified with the manufacturer’s name and logo and must be identified with the phrase “CCMC 13314-R” along the side of the product. This CCMC number is only valid when it appears in conjunction with the Intertek Testing Services certification mark.
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-061813.02-15||CCMC Technical Guide for Glulam Fabricated With Short-Length End-Jointed Lumber Laminations|
The evaluation holder has submitted technical documentation for CCMC’s evaluation. Testing was conducted at laboratories recognized by CCMC. The corresponding technical evidence for this product is summarized below.
|RealPost™ (S-P-F No.2)||AbsolutePost™ (WRC-SS)|
|E||9 329||7 820|
|E(05)||8 116||6 803|
|fcTable footnote footnote (3)||11.42||9.48|
|fbTable footnote footnote (4)||12.51||15.21|
This evaluation is issued by the Canadian Construction Materials Centre (CCMC), a part of the Construction Research Centre at the National Research Council of Canada (NRC). The evaluation must be read in the context of the entire CCMC Registry of Product Assessments and the legislated applicable building code in effect.The CCMC was established in 1988 on behalf of the applicable regulator (i.e., the provinces and territories) to ensure—through assessment—conformity of alternative and acceptable solutions to regional building codes as determined by the local authority having jurisdiction (AHJ) as part of the issuance of a building permit.
It is the responsibility of the local AHJs, design professionals, and specifiers to confirm that the evaluation is current and has not been withdrawn or superseded by a later issue. Please refer to the website or contact:
Canadian Construction Materials Centre
Construction Research Centre
National Research Council of Canada
1200 Montreal Road
Ottawa, Ontario, K1A 0R6
The NRC has evaluated the material, product, system or service described herein only for those characteristics stated 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 (i.e., AHJs, design professionals and specifiers). This evaluation is only valid when the product is installed in strict compliance with the stated conditions and limitations of evaluation and the applicable local building code. In circumstances where no applicable local building permit is issued and that no confirmation of compliance ‘for use in the intended field application’ is undertaken, this evaluation is null and void in all respects. This evaluation is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the NRC provides no endorsement for any evaluated material, product, system or service described herein. The NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this evaluation with respect to its compliance to the referenced code(s) and standard(s). 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.
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© 2021 Her Majesty the Queen in Right of Canada, as represented by the National Research Council of Canada.
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