Free engineering tools
Production-quality calculators used by structural engineers worldwide. Start a free trial when you need saving, PDF export, and the full library.
Free beam analysis calculator
Perform lightning fast analysis of simple and continuous beams using the Calcs.
Free moment of inertia calculator
Four analysis modes - elastic, warping and torsion constants (J, C_w), Direct Strength Method (DSM), and full plastic - covering every cross-section property a structural engineer needs for design.
Free section properties library
Look up cross-section and material properties for standard sections from Australian, US, and European manufacturer databases.
Free diaphragm analysis calculator
Perform fast analysis of simple flexible diaphragms using the Calcs.
Free steel bolt group analysis calculator
Effortlessly analyze steel bolt connections using the Calcs.
Free bushfire attack level (BAL) calculator
Two-method BAL assessment to AS 3959-2018 - the Simplified method (FDI lookup tables, Cl 2) and the Appendix B detailed method (radiant heat flux calculation) - running simultaneously so you can compare and select the governing result.
100+ calculators for steel, timber, and concrete
Beam design, column buckling, connection design, foundation sizing - everything a structural engineer needs.