Structural results are governed by codes with explicit combinations, factors and procedures. The computation is standard. Applying the right combination, and being able to show which one governed, is the work.
sets the dynamic thermal characteristics procedure for envelope elements. A steady-state U-value alone misses thermal mass entirely. ISO 13786
under the equivalent lateral force procedure depends on the fundamental period, so an assumed period propagates straight into the design force. ASCE 7 equivalent lateral force procedure
is a geometry problem before it is a coordination problem, and it is cheapest to solve before anything is fabricated. buildingSMART, IFC coordination practice
None of these need a workstation or a licence seat to check. They need the right procedure applied to your numbers, with the governing case named, in time to change a decision.
Six that close the biggest gaps. 7 in the full structural and building engineering library.
The gap it closes. Enumerates the combinations and reports which one governs each member, rather than returning a single utilisation you have to trust.
See it run in your browser →The gap it closes. Answers where material should go for a given volume and load case, before anyone commits a section. Standard benchmarks with published compliance values, so the method itself is checkable.
See it run in your browser →The gap it closes. Computes the modal periods the equivalent-lateral-force base shear depends on, instead of carrying an assumed period into a code calculation.
See it run in your browser →The gap it closes. Direct stiffness with recovered reactions and member actions, checked against closed-form cantilever and simply-supported deflections, so the solver itself is verifiable.
See it run in your browser →The gap it closes. U-value plus the ISO 13786 dynamic characteristics, so thermal mass is represented rather than assumed away by a steady-state number.
See it run in your browser →The gap it closes. Broad-phase geometric clash and quantity takeoff in the same pass, so coordination and cost come off the same model state.
See it run in your browser →Not engineering advice and no substitute for a licensed professional engineer or a code check. Every load-bearing result must be verified against the governing code, whether ASCE 7, AISC 360, ACI 318 or Eurocode, and sealed by a PE. These tools compute standard procedures over your inputs and show which case governed.
Every tool above runs entirely in this browser tab. Nothing is uploaded, nothing is sent to a model, and each result cites the rule it applied.
Free tier, no card, no install. An account saves your work and lets you export a citable record of a run. See all 7 structural and building engineering tools.