Whole Tree LLC

Whole Trees re-brands round timber for urban and commercial environments in place of steel. The company brings small-diameter forest thinnings to the construction industry.

Products and Services

Products & Services.
*Architectural Services for custom application of timber in construction.
*Engineering and Consultation for a wide variety of timber construction.
*Project Management and sub-contracting for Whole Trees’ timber component installation.
*Modular Commercial Structural Building System – columns, beams, and trusses – that replace steel with comparable prices, cheaper LEED credits, and faster installation.

Solution. The products are shop fabricated out of round timbers (4″ to 21″ diameter) and installed to your specifications. A typical structure will include columns, y-bracing columns, beams, parallel cords, scissor-type trusses, engineered connection points using steel connectors and fastners. The Whole Trees solution is a heavy-timber solution that is included in every North American building code. Whole Trees products can be used next to and tied into engineered lumber and traditional heavy timber and steel projects.

Sustainability. Whole Trees’ round timbers are FSC® certified and earn points toward LEED® (v4.0) certification. The company’s materials are replenished in 20-30 years versus 40-80 years for conventional lumber. Wood is a renewable resource and a carbon sink, sequestering carbon dioxide absorbed during growth even after it’s turned into lumber. Wood required less than 2 percent of the energy of concrete and steel materials for processing and transportation.

Background. The company’s was formed in 2007 because of the growing market for the use of un-milled timbers as structural building systems in ways new to the industry.


  • FSC-C019842.
Key Contact

Derek Mayhew


Production Facility: 211 High Echo Road, Westby, WI 54667. Office: 800 Williamson Street, Madison, WI 53703.

Phone Number




  • Ask about our FSC products
  • Whole Tree Structural Products
  • Pre-Engineered Trusses
  • Beams & Columns
  • Shade Structures
  • Climbing Structures
  • Playscapes & Play Equipment
  • Solar Carports
  • Decorative Trees
  • Benches & Seating
  • Custom Engineered Assemblies
  • Canopies & Pavilions