Free structural engineering tools

Tools engineers can use immediately.

Analyse a beam or search more than 79,000 structural sections directly in your browser. No signup, no installation and no unnecessary setup.

Fast access · Inspectable results · Free to use

Flagship tool · Beam Analysis

Build and solve a beam in minutes.

Define spans, supports and loads, then inspect reactions, shear forces, bending moments and deflection in one clear workspace.

Solved beam analysis workspace showing supports, loads, reactions, shear-force and bending-moment diagrams
Real Beam Analysis workspace · Model and result review

ModelSolveReviewExport

  • Multiple spans and supports
  • Point and distributed loads
  • Reactions and result diagrams
  • Deflection results
  • Structured PDF output
  • Runs directly in the browser
Open Beam Analysis

Read the Beam Analysis user guide →

No signup. Your calculation starts immediately.

Important results, assumptions and governing requirements must be independently reviewed by a qualified engineer.

Flagship tool · Structural data

Find the section you need without searching through separate catalogues.

Search a growing international library by designation, section family, country, standard, manufacturer and series.

Sections
79,000+

Searchable categories

  • I / H sections
  • Channels
  • CHS
  • RHS / SHS
  • Angles
  • Tees
  • Joists and girders
  • Timber sections
  • Bars and flats
  • Z sections
  • Sheet piles

Arenith continues to expand the library with additional standards, regional series and manufacturer data.

Search the Section Database

Search by designation or browse by category, country and standard.

Structural section database interface showing designation, category, country and advanced search filters
Real database interface · Filter and inspect section properties

Useful by design

Built for the calculations and lookups engineers repeat.

  • Open instantly in the browser
  • No account required
  • Clear engineering inputs and outputs
  • Tools and datasets continue to improve

Bookmark Arenith Tools for your next calculation or section lookup.

Quick references

Two more tools for everyday engineering work.

Engineering consultancy

When the tool is not enough.

Arenith provides structural design, finite-element analysis, independent technical checking and custom engineering automation for work that needs deeper judgement.

Discuss an Engineering Problem