Round Timber Solution

Private and public forests are in an unhealthy and dangerous state.  Our current timber markets do not provide sufficient economic incentive for the sustainable management of our forests, in many cases.  WholeTrees creates structural products out of trees to propel the creation of a high-value market for the abundantly available low or no-value cullings of sustainably managed forests. Adding market value to our forest by-products ensures the preservation of these lands. Research and development is key to bringing this incredible material to mainstream construction.

Patented Connections and Improved Grading

WholeTrees has a long-standing research partnership with the expert engineers at the USDA Forest Products Lab. We strive to work with innovative engineers, researchers and clients who want to push the boundaries of traditional construction practices and add beauty, sustainability and strength to our structures. WholeTrees Structures patented connections allowed this grocery installation to achieve wing trusses spans of 55′ that carry 20kps loads. We continue to aim higher and work with the top experts in the world to understand the superior properties of this 200 million year old material.

Our current research grants include improving material property understanding of branched timbers and improved pole grading of red pine timbers.

Supply Side Technology

WholeTrees is developing trade-secret technology to advance the accessibility of trees as structural materials.  We scan and catalog standing and post-harvest tree inventories and utilize our materials research to associate design values useful to project implementation. This catalog will be available for use to future design and building professionals in an easy-to-use on-line raw-goods inventory database that provides architectural design elements and the necessary engineering values of available specimens. Clients can follow the story of their materials from forest to factory and connect with their structure.


Unrivaled Expertise in Round Timber





Unrivaled Expertise in Round Timber

WholeTrees® is the national leader in engineering of natural unmilled timber for commercial construction. WholeTrees has worked with the USDA Forest Products Laboratory and the USDA Small Business Innovation and Research (SBIR) Grant Program to develop connections, grading procedures, and improved design values for a range of species. With these partnerships, WholeTrees seeks to bridge industry gaps between timber material science and advanced manufacturing technologies that can rapidly scale the use of small diameter round timber in construction. WholeTrees has developed and proven sophisticated methods for efficient structural analysis of trees, diverting structurally appropriate timber to much higher value structural markets. Our products can be specified in at an early stage of design or during the design development of your project.  Our expert team can provide entire structural plan sets with PE stamps, or provide your structural engineer with material properties and connection details. WholeTrees products fit in Type II, III, IV, and V construction, conform to the Heavy Timber IBC classification, and are ASTM standard compliant. WholeTrees uses TPI (Timber Products Inc), a nationally-recognized third-party pole grader for straight members. For non-uniform tree shapes, WholeTrees and its structural engineers implement established assumptions about material property and grade (i.e. high margins of safety). WholeTrees then implements NDE procedures to assess the MOE of individual tree-members, verifying material properties and design values similar to the “clear wood” wood approach in ASTM (1990) D245/D2555.


WholeTrees® Connections
WholeTrees uses standard connections that interface easily with a variety of structural systems. A selection of our standard details is provided here along with the CAD files for project integration. Revit families and our extended detail catalogue are available upon request.


Interactive Models

The WholeTrees design staff are exceptionally skilled at modeling with the organic shapes of trees. We utilize innovative design tools to help you and your team incorporate our materials into your existing computer aided design drawings. We will aid you through your design iterations and help your team envision the beauty of your WholeTrees components before construction. It isn’t easy to visualize the majesty of a tree, but our expert design team is here to ensure your design intent is fulfilled.

Contact our team for CAD blocks and product models to integrate into your project.




WholeTrees® Restorative Model

Our vision is to provide beautiful, affordable, and durable structural systems which also restore forests. Our timbers are a byproduct of sustainable forest management, which is a main pillar of the WholeTrees philosophy. Forest thinning allows the woodland as a whole to thrive, catalyzing growth and biodiversity. By pioneering this vibrant market, WholeTrees builds incentive to continue forest stewardship. Local economies prosper from the presence of continued regional harvesting and returning shop fabrication jobs.  WholeTrees works to instill a love for nature, promote conservancy, and restore a sense of awe and delight in our woodlands. Through our continued sustainability efforts we hope to catalyze healthy building material use and improve our built environment.

Carbon Sequestration

“A tree can absorb as much as 48 pounds of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old.” *

By choosing WholeTrees, you can directly incentivise sustainable timber stand improvements that increase the carbon storage capacity of our forests. WholeTrees structures also sequester carbon in service. The climate can benefit not only from CO2 sequestration in large commercial structures, but also from the stabilization of microclimates within highly productive forests.



The building sector is transitioning toward increased transparency, improved material health standards, and greater environmental impact awareness. WholeTrees is proud to be a part of this movement, and we show our commitment in a number of ways.

WholeTrees products: