Free structural engineering calculation sheets — beams, columns, slabs, foundations, connections and more. All free to use, no login required.
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Reinforced concrete beam and slab bending moment capacity calculation per Eurocode 2. Computes required reinforcement, checks section capacity, and provides utilisation ratios.
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Reinforced concrete column capacity check to Eurocode 2. Calculates axial‑bending interaction (N‑M diagram), slenderness effects, and required longitudinal reinforcement.
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RC wall capacity check under combined axial force and out‑of‑plane bending. Generates the N‑M interaction diagram, checks utilisation, and reports required vertical reinforcement.
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Design and verification of isolated spread footings. Checks bearing pressure, punching shear, bending, and required reinforcement to Eurocode 2 and Eurocode 7.
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Punching shear verification for flat slabs and footings to Eurocode 2. Computes control perimeters, shear resistance with and without reinforcement, and utilisation ratio.
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Calculation of bending moments in two‑way and one‑way slabs under uniform loading. Provides moment coefficients and design moments for different support conditions.
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Quick calculation of total reinforcement area by bar number and diameter. Metric bar sizes — useful for detailing and cross‑section design of RC elements.
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Timber beam bending and shear verification to Eurocode 5. Checks bending stress, shear stress, and deflection limits for rectangular solid‑timber and glulam sections.
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Analysis of single‑span steel portal frames. Computes bending moments, shear forces, and axial loads under various load combinations for pinned and fixed base conditions.
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Design and verification of bolted end‑plate moment connections to Eurocode 3. Checks bolt tensile resistance, end‑plate bending, column flange, and welds.
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Preloading force and tightening torque for high‑strength structural bolts. Covers bolt grades 8.8 and 10.9, with friction coefficients and k‑factors per EN 1090‑2.
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Moment of inertia, section modulus, radius of gyration, and area for general cross‑sections. Supports built‑up, composite, and standard shapes with graphical preview.
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Weight per metre for circular (CHS), square (SHS), and rectangular (RHS) hollow steel sections. Computes cross‑sectional area, moment of inertia, and linear weight.