Free Structural Calculators

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ACI 318-19

Slab Thickness Calculator

Calculate minimum two-way slab thickness per ACI 318-19 Table 8.3.1.1 from clear span and steel yield strength. Supports all edge conditions.

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Statics

Beam Moment & Shear Calculator

Simply supported beam bending moment and shear diagrams for UDL or central point load. Instant canvas diagram, no plugins required.

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ACI 318 / IS 456

Footing Size Calculator

Minimum square footing plan area from column service load and allowable soil bearing pressure. US Customary or metric units.

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