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.
![Header Beam Span Rendering](https://www.weyerhaeuser.com/application/files/cache/thumbnails/50fd3093d956cdcb05759ed521a35734.jpg)
![Canadian Flag](https://www.weyerhaeuser.com/application/files/cache/thumbnails/e0b2497b3cf66c73e38f8bdafd7a5f01.png)
Calculator is for use in Canada applications only. For U.S. switch to U.S. Sizing Table Lookup.
![](/application/files/8016/4859/7190/forte-web-logo-home.gif)
Use ForteWEB™ to determine solutions for conditions beyond the scope of this table.