The Douglas Fir – Larch Glulam PLF (Pounds per Linear Foot) Charts determine the load-bearing capacity of glued laminated timber beams made from Douglas Fir or Larch. Organizations such as the American Institute of Timber Construction often provide these charts.
The charts typically include various beam dimensions and their corresponding design values for different service conditions. For example, they might list the sizes of a beam (e.g., 3 x 8, 3 x 10, Etc.) and provide corresponding values for factors such as bending stress (Fbx), shear stress (FVx), and modulus of elasticity (Ex).
For more specific information, view these charts below, or you may want to visit the relevant resources directly. A qualified professional should adequately interpret and apply these charts to ensure safety and compliance with applicable standards and regulations.