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Third-party forest certification based on standards developed by the Forest Stewardship Council (FSC) is the best way to ensure that wood products come from well-managed forests. Wood products must go through a chain-of-custody certification process to carry an FSC stamp.

Manufactured wood products can meet the FSC certification requirements with less than 100% certified wood content through percentage-based claims (30% certified content is required if only virgin wood fiber is used; certified-wood content as low as 17.5% is allowable if the rest of the fiber content is from recycled sources).

With a few special-case exceptions, FSC-based certification is a requirement for GreenSpec inclusion of any nonsalvaged solid-wood product and most other wood products. A few manufactured wood products, including engineered lumber and particleboard/MDF, can be included if they have other environmental advantages--such as absence of formaldehyde binders. Engineered wood products in GreenSpec do not qualify by virtue of their resource efficiency benefits alone (for more on this, see EBN, Vol. 8, No. 11).

Third-party forest certification based on standards developed by the Forest Stewardship Council (FSC) is the best way to ensure that wood products come from well-managed forests. Wood products must go through a chain-of-custody certification process to carry an FSC stamp.

Manufactured wood products can meet the FSC certification requirements with less than 100% certified wood content through percentage-based claims (30% certified content is required if only virgin wood fiber is used; certified-wood content as low as 17.5% is allowable if the rest of the fiber content is from recycled sources).

With a few special-case exceptions, FSC-based certification is a requirement for GreenSpec inclusion of any nonsalvaged solid-wood product and most other wood products. A few manufactured wood products, including engineered lumber and particleboard/MDF, can be included if they have other environmental advantages--such as absence of formaldehyde binders. Engineered wood products in GreenSpec do not qualify by virtue of their resource efficiency benefits alone (for more on this, see EBN, Vol. 8, No. 11).

  • Makrowin Wood Windows
  • Makrowin Wood Windows
  • European Architectural Supply, Inc.
  • Makrowin Wood Windows
    European Architectural Supply, Inc.
    Makrowin wood windows are made from European spruce, oak, and mahogany, and can be double- or triple- glazed. With aluminum cladding on the exterior, whole-window U-values range from 0.12 to 0.13 with a center of glass U-factor of 0.88. Wood certified by FSC is available upon request. The highest-performing Makrowin window, the MW88G2, meets the strict energy and air-tightness requirements of the Passivhaus Institut and uses cork to insulate the frame. The company claims these windows are the thinnest PHI-certified wood windows at 3.46 inches thick (88mm). In addition to tilt-turn windows, Makrowin also offers a variety of entry, lift-slide, and patio doors.
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  • J.S. Benson Custom Wood Windows and Doors
  • J.S. Benson Custom Wood Windows and Doors
  • J. S. Benson Woodworking & Design, LLC
  • J.S. Benson Custom Wood Windows and Doors
    J. S. Benson Woodworking & Design, LLC
    J. S. Benson Woodworking & Design is a manufacturer of high-end, custom, true-divided-lite windows both for the renovation and new construction market, with FSC-certified wood available as an option. The company offers dual-sealed insulated units using clear annealed glass. Energy features include low-e coatings, argon-fill, and warm-edge insulated glass spacers.
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  • Nydree Hardwood Flooring
  • Nydree Hardwood Flooring
  • Nydree Flooring
  • Nydree Hardwood Flooring
    Nydree Flooring
    Nydree Flooring sells and distributes new FSC-certified ash, cherry, hickory, maple, oak, and walnut wood flooring. Its Core collection uses recycled Aspen tree fibers and all-natural dyes. Nydree MRA1585 Moisture Retarding Adhesive, the recommended adhesive for all Nydree Flooring products, contains no VOCs. Fixed length, double end, grooved planks can be specified in widths of 2-2/3" (67.6 mm) and 4" (101.6 mm) at a thickness of 3/8" (8.26 mm). Nydree Flooring also offers reclaimed oak flooring.
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  • Rugby Architectural Composite Wood
  • Rugby Architectural Composite Wood
  • Rugby Architectural Building Products
  • Rugby Architectural Composite Wood
    Rugby Architectural Building Products
    Rugby Architectural Building Products distributes a number of no added formaldehyde (NAF) and FSC-certified building materials, including particleboard, medium density fiberboard (MDF), melamine panels, composite panels, and hardwood plywood (with veneer, particleboard, and MDF core options). Its MDF is made from 100% recycled wood content. They offer a low VOC adhesive and a polyvinyl acetate (PVA, or white glue) adhesive. Rugby also distributes FSC-certified dimensional lumber as well as class A fire-rated panels.
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  • X-LAM Cross-Laminated Timber
  • X-LAM Cross-Laminated Timber
  • Nordic Engineered Wood
  • X-LAM Cross-Laminated Timber
    Nordic Engineered Wood
    X-Lam cross-laminated timber (CLT) structural panels are made by gluing layers of black spruce one on top of the next at right angles to each other. The resulting panels are light and dimensionally stable in all directions and can be used for floors, walls, and roofing in commercial and residential construction. These panels use fast-growing, FSC-certified black spruce, with no-added-formaldehyde adhesive. X-Lam panels are available in lengths up to 64 feet long, 8 feet wide, and 15 inches thick.
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  • Casagrande Woodworks Windows
  • Casagrande Woodworks Windows
  • Casagrande Woodworks
  • Casagrande Woodworks Windows
    Casagrande Woodworks
    Casagrande windows incorporate FSC-certified timber, Cardinal or Alpen Glass, Siegenia hardware, and Gutmann cladding.The Synergist model, made in the U.S., has achieved Passivhaus product certification through Germany's Passive House Institute and is certified with a whole-window U-value of 0.139 (R-value of 7.2).
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  • ATS Acoustic Ceiling Panels
  • ATS Acoustic Ceiling Panels
  • ATS Acoustics
  • ATS Acoustic Ceiling Panels
    ATS Acoustics
    ATS Acoustic Eco-Panels provide sound control in commercial and residential applications such as conference rooms, schools, offices, and apartment complexes. They have an NRC sound absorption rating of 1.0 and are available with either 80% pre-consumer recycled cotton or Ecose fiberglass from Knauf, which contains 58% post-consumer recycled content and uses a formaldehyde-free binder (Ecose products have a Class A fire rating; cotton are Class B). Frames are made from 90% pre-consumer HDPE and the backing is FSC-certified PureBond plywood. These panels are available in a variety of colors and in sizes up to 24"x48"x 4". Custom panels are also available.
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  • Hamilton Sorter Modular Casework
  • Hamilton Sorter Modular Casework
  • Hamilton Sorter Company
  • Hamilton Sorter Modular Casework
    Hamilton Sorter Company
    Hamilton Sorter offers modular casework for a variety of commercial, healthcare, and educational applications. Its products are certified UL Greenguard Gold and designated Red List Compliant by the International Living Future Institute; they are also available with FSC-certified wood. Products include casework for lockers, laboratories, patient rooms, pantries, and more. A number of finishes and veneers are available, including powder coats and standard laminates. Marmoleum, stainless steel, and other coatings are available at additional cost.
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  • The Rainscreen Clip System
  • The Rainscreen Clip System
  • Wood Haven Inc.
  • The Rainscreen Clip System
    Wood Haven Inc.
    The Rainscreen Clip system includes hidden fasteners that create a gap behind wood cladding to allow ventilation, as is typical for a rainscreen system. The clips are painted marine-grade aluminum, and screwed in place into pre-drilled, rot-resistant furring boards. Manufacturer Wood Haven offers a variety of species of lumber in various colors and widths, and also offers matching trim and corner boards. FSC-certified wood is available on request.
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  • RedBuilt Certified Engineered Lumber
  • RedBuilt Certified Engineered Lumber
  • RedBuilt Engineered Wood Products
  • RedBuilt Certified Engineered Lumber
    RedBuilt Engineered Wood Products
    RedBuilt offers certified engineered wood products, including FSC-certified Red-I I-joists, RedLam LVL, and Open-Web trusses. The company uses phenol formaldehyde, resorcinol formaldehyde, and polymeric diphenylmethane diisocyanate (pMDI) resins in the manufacturing process. With some products, special orders may be required.
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  • Open Joist Triforce
  • Open Joist Triforce
  • Open Joist Triforce
  • Open Joist Triforce
    Open Joist Triforce
    Open Joist Triforce is a open-web, parallel-chord truss with solid-wood diagonal struts. It is most commonly used as for joists, but can also be used as rafters to achieve superinsulated roofs. The solid-wood 2x2 diagonal struts are attached with finger-jointed, glued grooves, potentially increasing durability when contrasted with OSB or metal plates that could degrade or corrode over time. Each Open Joist Triforce joist includes a 34-1/8" OSB panel at one end that allows the length to be easily modified, thus allowing more economical, standard-dimension manufacturing. FSC certification is available with Open Joist Triforce products.
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  • TorZo Surface Materials
  • TorZo Surface Materials
  • TorZo Surfaces
  • TorZo Surface Materials
    TorZo Surfaces
    TorZo manufactures several surface materials made from wheat, sorghum, hemp, or FSC-certified MDF panels. Acrylic resins are infused into the panels, adding hardness and durability as well as a unique look. Duram is a wheat straw panel made from agricultural waste products; Hemp is made from recycled hemp fiber; and Parda and Indure are made from FSC-certified no-added formaldehyde MDF. Indure looks similar to concrete and has a hardness of 7,700 lbs (maple is 1,800 lbs), as measured by the Janka Ball test. The products are available in different dimensions and a variety of colors.
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  • EcoTop and RecycleTop Surface Materials
  • EcoTop and RecycleTop Surface Materials
  • Klip BioTechnologies, LLC
  • EcoTop and RecycleTop Surface Materials
    Klip BioTechnologies, LLC
    KlipTech offers EcoTop and RecycleTop surface materials for residential and commercial applications. EcoTop is made from phenol formaldehyde resins and a blend of FSC-certified post-consumer recycled paper and bamboo fiber, which provides additional durability. The company’s RecycleTop contains 100% post-consumer paper and 50% of its resin is made from corn and cashew nut oils, creating a surface material that is 80% recycled or renewable content, according to the company. Theses surfaces can withstand temperatures of up to 350°F. EcoTop is available in white, ivory, “Espresso”, and black; RecycleTop is available in black and two shades of brown. Standard sheet dimensions for both products is 30" x 96" or 48" x 96", but Ecotop is only available in a ½" thickness, whereas RecycleTop comes in ¾", 1", and 1-1/4" thicknesses.
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  • Panolam FSC Surfacing
  • Panolam FSC Surfacing
  • Panolam Industries
  • Panolam FSC Surfacing
    Panolam Industries
    Panolam offers low-emitting, high-pressure laminates (HPLs) and thermally fused melamine surfaces (TFM). The latter are similar to HPLs except the melamine formaldehyde layer is fused to a no-added formaldehyde MDF or particleboard substrate instead of bonding to kraft paper. The wear layer for Panolam’s TFM is similar to HPF and most of these products are certified to GreenGuard Children & Schools emissions standards. FSC-certified products are available upon request.
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  • Terra Legno Engineered Wood Flooring
  • Terra Legno Engineered Wood Flooring
  • Dyerich Flooring Designs, Ltd.
  • Terra Legno Engineered Wood Flooring
    Dyerich Flooring Designs, Ltd.
    Terra Legno is FSC-certified wood flooring that is engineered using a process that allows for the use of younger and smaller trees. Seven layers of Russian birch are glued together at right angles for dimensional stability using glue that has been tested to emit less than 0.07 ppm of formaldehyde, meeting E0 formaldehyde emission standards. The sublayer of Russian birch is glued to a hardwood veneer, which comes prefinished with nine layers of UV-cured coating, including several layers of scratch-resistant aluminum oxide. Terra Legno comes with a 25-year warranty for finish, under normal residential use, and structural integrity.
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