Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come.
With millions of acres across the U.S., we offer hunters, anglers and other outdoor enthusiasts a vast resource for enjoying outdoor recreation.
We’re one of the largest private landholders in the United States. As stewards of these assets, we maximize the value of every acre.
We’ve been developing new building products and solutions for more than 100 years. We offer exceptional product performance and unparalleled support.
We’re focused on renewable energy development, forest carbon and CCS, conservation and mitigation banking.
We're focused on climate change solutions, creating sustainable homes for everyone, and supporting thriving rural communities.
For more than a hundred years, Weyerhaeuser has been building and enhancing a reputation for responsible corporate citizenship.
We offer a range of exciting career opportunities for smart, talented people who are passionate about making a difference.
We're working together to be the world’s premier timber, land, and forest products company.
Simple Span Floor Framing
Use the drop downs to select your roof load, floor load, house width, and material to calculate the appropriate size of TimberStrand or Parallam header.
Calculator is for use in U.S. applications only. For Canada switch to Canada Sizing Table Lookup.
Use ForteWEB™ to determine solutions for conditions beyond the scope of this table.