By Alex Anderson, DNR Forest Products Specialist, Rhinelander

When people think of wood-based panel products, plywood and oriented-strand board (OSB) usually come to mind. However, a vast array of panel products whose primary building block is wood do not fall under the auspices of plywood or OSB. Before we explore those, it’s important to understand the distinction between “structural” panels and “non-structural” panels.

As the name implies, structural panels are designed to bolster the strength, stiffness and resistance of the items they adhere to. Plywood, generally, is utilized in commercial structures, whereas OSB is more common in residential construction.

Both plywood and OSB function as cladding for roofs, walls and subfloors. In Wisconsin, various plywood manufacturers generally produce hardwood plywood for decorative applications, such as furniture, cabinets, pinblocks for pianos and many others. There are also two OSB manufacturers in Wisconsin that utilize OSB as a base for their siding product.

Alternatively, non-structural panel products are primarily represented by medium-density fiberboard (MDF), particleboard and hardboard. Like OSB and plywood, these panels are prized for their dimensional stability and textural consistency.
Continue reading “There’s More To Panels Than OSB And Plywood” →

In early September, the Wisconsin Wood Marketing Team and the Wisconsin Department of Natural Resources’ Forest Products Services program partnered with the Softwood Export Council and Northeastern Lumber Manufacturer’s Association to host a virtual trade seminar with US softwood manufacturers, US building material brokers, and Pakistani wood buyers. The seminar had 28 people in attendance, with the majority being lumber purchasers from Pakistan. Participants from Pakistan gained valuable information about the benefits of using US softwood products and current market trends for wood products in Pakistan.

Continue reading “Opportunities for US softwood lumber in Pakistan” →

By Alex Anderson, forest products specialist, Rhinelander

The devastation left behind in forested areas after a severe weather event can seem overwhelming. In order to further understanding of how storm-damaged forest and woodlot salvage harvests differ from traditional timber sales, we have compiled information that will, hopefully, help landowners affected by the recent rash of severe weather events in Wisconsin deal with their damaged woodlands more confidently.

Wood Degradation
Many of the downed trees from July’s severe weather are red pines (Pinus resinosa). Pines, particularly white pine (Pinus strobus) and red pine in the Lake States region, are susceptible to staining when they are harvested or killed during a weather event but are not processed quickly enough. The discoloration is a result of microscopic fungi that manifest as a pale, blueish stain in the wood often called “blue-stain” or “sap-stain.” Though there is a small, decorative market for blue-stained pine—sometimes referred to as “denim pine”—it is generally undesirable. Hardwood species are also susceptible to blue stain fungi. End coating logs with a wax barrier may reduce the risk of staining and end checking.

These logs show blue staining. Continue reading “Salvaging Storm-Damaged Forest Products” →

By Sabina Dhungana, forest products specialist, Madison

The Wisconsin Department of Natural Resources in cooperation with the USDA Forest Service hosted a webinar highlighting the principles of biochar. 

Biochar is an emerging forest product that is derived from woody biomass and other organic feedstocks. The use of biochar has gained considerable interest in the agricultural field, and it presents opportunities for utilizing available biomass sources. Topics covered in the webinar included: Biochar markets and uses, biochar production systems, applications in vegetable growing.

The webinar has been archived and can be viewed here.

By Logan Wells, forest products specialist, Hayward

Workforce development efforts are a key pillar in the Forest Products Services (FPS) program’s strategic direction. These efforts range from teaching and organizing technical workshops on topics that range from rail tie manufacturing to lumber grading. Traditionally, many efforts have focused on training the existing industry workforce. In addition, several current initiatives to raise career awareness in the forest products industry among students include the UW-Stevens Point LEAF Forest Products Kit and the Skills USA woodworking competition.

To build on these efforts of raising awareness about the importance of forest products and potential careers, an industry perspective curriculum is being developed by FPS in cooperation with agriculture teachers, industry partners and LEAF staff. The first installment of the curriculum will focus on the hardwood lumber sector and will be a full weeks’ worth of material. The first class is devoted to establishing basic information about the industry and process of turning logs into lumber. A general overview of the terms, products, jobs and sawmill equipment will be the focus of the first day. The second and third days will allow students to learn and practice the hands-on skill of lumber grading. Lumber grading is one of the most important skillsets in the hardwood industry. Teaching an abbreviated form of lumber grading will provide students a chance to practice applied math and critical thinking in a real-world application. The fourth day will be devoted to learning about the different types of defects in lumber and their causes along with a review exercise for the week. The final day will include resources for classes to connect with a guest speaker, participate in a mill tour or learn about other opportunities to continue to explore the hardwood lumber industry.

These materials will target freshman through junior level students and be taught in Career and Technical Education (CTE) classes like industrial technology, woodworking, agriculture or forestry/natural resources. The lumber grading program will be piloted with several schools this fall and be available in late Spring 2020. Eventually this model of industry perspective curriculum will be expanded to highlight information and skills of other sectors of the forest products industry, including logging and trucking. If you have thoughts or questions, or if would like to learn more about the program, please contact Logan Wells at Logan.Wells@wisconsin.gov.

A Wisconsin-based real estate development firm, New Land Enterprises, plans to construct a seven-story mass timber office building on a vacant site in downtown Milwaukee. The building was designed by Korb + Associates Architects and would be the tallest of such structures in Wisconsin.

What is mass timber?
Mass timber is a category of structural framing styles typically characterized by the use of large, solid wood panels for wall, floor, and roof construction. Examples include: glued-laminated timber (glulam), nail-laminated timber (NLT), cross-laminated timber (CLT), and dowel-laminated timber (DLT).

Continue reading “Mass Timber Proposed in Milwaukee Building” →