Good structures
start with clarity.
Practical engineering calculators for the moments that matter. Model your structure, understand the forces, and move forward with confidence.
Explore calculators ↗Make the numbers make sense.
Choose a calculator and start with an editable example.
Simple beam calculator
Define your beam, add supports and loads, then see how it responds.
Beam properties
Supports
Pinned and roller supports restrain vertical movement; fixed supports also restrain rotation.
Loads
Forces and distributed loads: positive upward. Moments: positive counterclockwise.
Beam schematic
Positions are drawn along the span. Load arrows show direction, not magnitude; details are listed below.
2D truss solver
Build a pin-jointed frame and explore member forces and displacements.
Nodes
Coordinates in metres; loads in kN (positive right and up).
Members
Connect nodes by number. Each member has its own area and modulus.
From input to insight.
Set the scene.
Enter your geometry, material properties, supports and loads.
Run the numbers.
Our linear elastic solvers calculate the structural response in your browser.
See the whole picture.
Review diagrams, reactions and member forces at a glance.
Made for curious minds
and careful calculations.
ngineerng is a growing collection of straightforward tools for understanding structural behaviour. No account, no unnecessary complexity.
Beam analysis uses Euler–Bernoulli bending; the truss solver assumes pin joints and axial members. Both use linear elastic, small-displacement analysis. They do not check strength, buckling, connections, self-weight or code compliance.