run-quick-design

Run Quick Design Calculator

Overview

Run any calculator from the SkyCiv Quick Design library via a single REST endpoint. The library covers 154 calculators across structural, foundation, steel, concrete, timber, aluminium, connection, and load categories.

• API endpoint: POST https://qd.skyciv.com/run
• Auth: Requires a SkyCiv API token — get yours at https://platform.skyciv.com/api
• Full calculator catalogue
• Writing or editing a calc pack (including s3d_integration.js so it runs inside S3D against every member of a solved model)? That's authoring, not calling: see build-quick-design-calculator and its S3D integration guide.

Before you pick a member design calculator: check S3D Member Design first

Preferred method: to design members of an S3D model (steel, cold-formed steel, timber), use S3D.design.member.check when it supports that code. Don't use the Quick Design member calculator for the same code. For example, for AS/NZS 4600 use S3D.design.member.check with design_code: "ASNZS_4600-2018", not 2304-as4600-cfs-design-calculator.

Why: Member Design runs on the whole solved model. It handles every load combination, effective lengths, bracing/restraints, and member grouping automatically, and usually gives a better design result. A Quick Design calculator only sees the forces and lengths you pass in by hand. Quick Design calculators are still accurate and are the right tool when Member Design doesn't cover the job.

Decide like this:

1. Is it a member check (beam/column/brace) on an S3D model, and is the code in the Member Design list? → use S3D.design.member.check. This applies to steel, cold-formed steel and timber only.
2. Otherwise, use a Quick Design calculator. That covers:
   • all concrete design (beams, columns, slabs, walls, footings). Always use the Quick Design concrete calculators here, never S3D.design.rc.check;
   • codes Member Design doesn't have: all aluminium, CSA O86, EN 1995, NZS 1720;
   • an edition the user explicitly requires that only Quick Design has (e.g. AISC 360-22);
   • connections, base plates, plates, lugs, purlins, foundations, and loads;
   • a single hand check with no model;
   • building an S3D calc pack (see build-quick-design-calculator).