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    1. Build Green

      Build Tolko. Build Green.

      True. Trusted. Tolko.

      Our commitment to quality is about more than giving our customers wood products they can depend on.

      It’s about creating a robust, creative company culture that has a positive impact on our surroundings. That’s why we are committed to a sustainable business model that balances environmental, social, and economic performance.

      This commitment to the environment ensures the resources we manage today will contribute to future generations tomorrow. Because at Tolko, we know it’s about more than making money today – it’s about planning for a sustainable, profitable future for tomorrow.

      Green building standards

      In the pursuit of our environmental commitment, we’ve met a variety of world-leading environmental standards, from forest management through to the manufacturing of environmentally-friendly products. That includes meeting international Green Building standards, including LEED and Green Globes, for all our wood products.

      Our products earn the certified wood credit under these standards through the Sustainable Forestry Initiative (SFI), and our Sustainable Forest Management (SFM) certification. SFI fully qualifies under the LEED standard via the LEED Alternative Compliance Path process. In addition, our panel products qualify for incremental LEED credits under the low emitting materials requirements.


      Building for the greenest future possible

      The best business model is always based in sustainability. By working with our employees, our communities, and our customers, we can create innovative products that will continue to serve customers now, and into the future.


      Understanding Formaldehyde (NAUF)

      When our customers see that our wood products contain formaldehyde, they naturally have questions. To help all our customers understand the role formaldehyde plays in our oriented strand board (OSB), and other wood product production, we’ve collected a few questions and answers to help you understand what formaldehyde is, why it’s in our wood products, and the effects it will have on you.

      What is formaldehyde?

      Formaldehyde is a chemical made of hydrogen, oxygen, and carbon and is the product of many natural processes. Formaldehyde is present in naturally high levels in many foods, including apples and onions – it’s even a natural building block in the human body. In fact, human blood normally contains about 3 parts per million (ppm) of formaldehyde.


      How much formaldehyde is in wood?

      All wood species, and therefore all wood products, contain and emit small amounts of formaldehyde. Because formaldehyde occurs naturally in wood, there is no such thing as “formaldehyde-free” wood. An oak tree, for example, emits 0.009 ppm of formaldehyde. By itself, this is a very low quantity, but densely wooded areas can have much higher concentrations. It follows that any wood cut from that oak tree also contains small amounts of formaldehyde, as do all wood products.

      Our structural wood panels, such as OSB, are manufactured with moisture resistant adhesives and the finished product emissions are similar to raw wood.

      Compare Tolko OSB and Plywood to the Worldwide Formaldehyde Standards


      StandardCARB (U.S.A.)HUD (U.S.A.)F**** (JAPAN)APA G-5 PR-E710Tolko OSB
      OSB Maximum Emission LevelUnder definition No.8 PS 2 OSB is EXEMPTPS 2 OSB is EXEMPT0.30 mg/L0.30 mg/L<0.06 mg/L


      StandardCARB (U.S.A.)HUD (U.S.A.)F**** (JAPAN)APA G-5 PR-E710Tolko Plywood
      Plywood Maximum Emission Level0.09 ppm Tolko PS 1 Ply is EXEMPT.2 ppm Tolko PS 1 Ply0.30 mg/L0.124 mg/L0 ppm*
      NOTE: 1 part per million (ppm) is roughly equivalent to 1 milligram per litre (mg/L)
      * 0 ppm in the ASTM large chamber test

      What kind of resin is used in Tolko T-STRAND OSB?

      Our OSB is manufactured using low-emitting resins, in compliance with the Voluntary Product Standard (PS 2) Performance Standard. This means it contains no added urea formaldehyde resin (NAUF).


      APA qualified structural panels with low formaldehyde emissions

      Panels labeled as G5 have qualified for low formaldehyde emissions based on ISO 12460-4 and the bond performance requirements of PS 2. The G5 rating is a formaldehyde upper emission level defined as: an average of 0.20 mg per litre, individual specimen of 0.30 mg per litre. Testing has shown that APA*-certified products meet these G5 levels along with the most stringent level specified by the California Air Resources Board (CARB) and the U.S. Department of Housing and Urban Development (HUD).

      *APA – The Engineered Wood Association was formerly known as the American Plywood Association.


      PS2 certified OSB

      Tolko oriented strand board (OSB) is manufactured to meet the stringent Voluntary Product Standard (PS 2) Performance Standard for Wood-Based Structural-Use Panels. Under these standards, panels are manufactured only with moisture-resistant adhesives that meet Exterior or Exposure 1 bond classifications.

      Tolko’s adhesives, typically phenol formaldehyde and diphenylmethane diisocyanate (MDI), chemically react into stable bonds during pressing. The final products have such low formaldehyde emission levels that they easily meet or are exempt from the world’s leading formaldehyde emission standards and regulations.


      An Alternative to Landfills

      Research by the University of Georgia and the National Association of Home Builders (NAHB) Research Center report that engineered wood product waste generated on construction sites can be ground up and used as effective and safe mulch. This is an innovative alternative to burdening landfills and paying for the disposal of unused wood building materials.