Design: Asd/lrfd | Structural Wood

Remains the historical standard for wood and is widely used due to its simplicity and the extensive existing library of hardware catalogs based on ASD. Load and Resistance Factor Design (LRFD)

Standard in steel and concrete design and gradually gaining ground in the wood industry. ⚖️ Key Differences for Designers Load Factors Usually 1.0 (unfactored) Multipliers > 1.0 (e.g., 1.2, 1.6) Material Strength Reduced by Factor of Safety Multiplied by resistance factor ( Calculations Stress-based ( Strength-based ( Efficiency Can be conservative for mixed loads More efficient for transient load combinations 🪵 Why Choose One Over the Other? Structural wood design: ASD/LRFD

Traditional, deterministic method based on elastic design . Remains the historical standard for wood and is

Applies a single Factor of Safety to the material's ultimate strength to determine "allowable" stresses. Loads: Uses actual expected (unfactored) service loads. Traditional, deterministic method based on elastic design