NDS 2024 Compliant
Timber Design with Every Adjustment Factor Explained
Design wood beams with complete visibility into every adjustment factor. See exactly how CD, CM, CL, and other factors affect your design—with NDS section citations for every calculation.
- ✓Dimensional lumber and glulam options
- ✓All NDS adjustment factors displayed
- ✓Species and grade selection
- ✓Bending, shear, deflection checks
- ✓Bearing capacity at supports
- ✓Factor explanations with NDS references
2x10 Douglas Fir-Larch Beam
Span: 12 ft
Grade: No. 2
NDS 2024 Adjustment Factors
CD (Load Duration)1.00
CM (Wet Service)1.00
Ct (Temperature)1.00
CL (Beam Stability)0.98
CF (Size Factor)1.30
Bending Stress Check (NDS 3.3)
F'b = Fb × CD × CM × Ct × CL × CF
F'b = 900 psi × 1.0 × 1.0 × 1.0 × 0.98 × 1.30 = 1,146 psi
fb = 875 psi
fb/F'b = 0.76 ✓ OK