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Wind Loads

Wind load and wind bracing calculators for Australia and New Zealand.

Bushfire

Calculate the Bushfire Attack Level to AS 3959:2018

Determine the Bushfire Attack Level (BAL) for a building site to AS 3959:2018, using the simplified or detailed method.

Estimate the Bushfire Attack Level with the Free Calculator

What the free BAL calculator is for, and why a building permit needs a certified assessment.

Seismic Loads

Calculate Seismic Loads to AS 1170.4:2024

Use this calculator to perform simplified seismic analysis for housing and low-rise structures across Australia in compliance with AS 1170.4:2024.