No free alternative to StructurePoint spColumn yet
No free tool combines reinforced concrete interaction diagrams, slenderness effects and code checks in one design workflow; Python packages analyze sections only.
About this gap
- StructurePoint spColumn, spColumn, perpetual license
$2,390 USDone-time
≈$3,407.42 CAD one-time (converted from USD)
- Build effort
Months for a small team
An editor’s estimate for a free tool that ranks Strong.
- Demand
Nobody has asked for one yet.
What a free alternative needs
The capabilities that keep people paying for StructurePoint spColumn.
P-M interaction diagrams for any section
Uniaxial and biaxial diagrams for arbitrary column shapes with reinforcement layouts.
Slender column effects
Code checks to concrete design standards
Slab and mat design
Reports that engineers can submit
Why it is hard
Results must match published worked examples for each design code edition, and slab and mat design needs a finite element solver.
Closest free options
No free tool covers a meaningful part of it yet.
Building one?
List your tool on Gratistack when it works. Once an editor maps it to StructurePoint spColumn, it shows on this page and in search, and the people waiting here can hear about it.
- Listing is free. An editor reviews the free queue every week.
- Want a decision sooner? The optional $49 fast-track gets one within 48 hours. It buys speed, not approval, and a rejection is refunded.
- Once it is listed as an alternative, you can sponsor the alternatives page for $149 per 30 days. Sponsors are labeled and never change the ranking.
About this page
Last checked : an editor confirmed that no free alternative ranks Strong.
Price: spColumn, perpetual license, checked Oct 8, 2026. Price source. USD to CAD at 1.4257 as of Oct 7, 2026.
Know a free alternative? Tell us.
StructurePoint spColumn is a product of StructurePoint, named here for comparison only.