Wood Roof Tie (ASD) Calculator to NDS 2018 (ASD)

Easy to use online Wood Roof Tie (ASD) software for American standards.


The easy to use online ClearCalcs Wood Roof Tie ASD Calculator to NDS 2018 enables you to do quick and powerful design and analysis for wood collar ties and rafter ties. Choose from our library of thousands of common wood sections, or create your own and get instant results with our easy to understand traffic light checks for tension in the ties and all limit states for the rafters.

Presets Available

Presets enable you to quickly design a wide range of different calculation types using smart, prefilled settings to save time.

  • Collar Tie
  • Rafter Tie
  • Collar & Rafter Tie

Key Sections in the Wood Roof Tie (ASD) Calculator

  • Tie Summary
  • Rafter Summary
  • Key Geometry
  • Rafter Member
  • First Tie Member
  • Second Tie Member
  • Loads
  • Design Conditions
  • Rafter Properties
  • First Tie Properties
  • Second Tie Properties
  • Load Combination Analysis (ASCE 7-16, Ch. 2)
  • Unfactored Load Analysis (ASCE 7-16)
  • Governing Load Combination Determination for Rafter
  • Governing Load Combination Determination for First Tie
  • Governing Load Combination Determination for Second Tie
  • Rafter Elastic Modulus (NDS 2018 2.3)
  • First Tie Elastic Modulus (NDS 2018 2.3)
  • Second Tie Elastic Modulus (NDS 2018 2.3)
  • Rafter Section Bending (NDS 2018 2.3)
  • Rafter Positive Bending (NDS 2018 2.3)
  • Rafter Negative Bending (NDS 2018 2.3)
  • Rafter Shear Design (NDS 2018 3.4)
  • Rafter Bearing (NDS 2018 3.10)
  • First Tie Tension Design (NDS 2018 3.8)
  • Second Tie Tension Design (NDS 2018 3.8)
  • Rafter Deflections

What is ClearCalcs?

ClearCalcs is a cloud structural design and analysis software helping engineers and designers do their best work quickly. With a broad range of calculations available, streamline your calculations and checks and produce beautiful end reports.

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