Truss Calculator — member forces and reactions

A free truss calculator for 2D pin-jointed frames. Draw or type the geometry, add supports and loads, and read every member force in tension or compression, the support reactions and the deflected shape — solved live in your browser, nothing to install.

• Any 2D truss: Warren, Pratt, Howe, Fink, cantilever jibs and arbitrary geometry you draw yourself.
• Pinned, roller and inclined-roller supports, support settlement, thermal strain and fabrication (lack-of-fit) errors.
• Member sizing from 2,600+ published steel sections across AS4100, AISC, EN 10365, BS 4, JIS and IS 808.
• Export a full calculation report, or call the same solver over HTTP through the public API.

Background reading: How to use the truss calculator · Truss analysis explained