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Structural engineering

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Structural engineering
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Concreteproperties py: Analyse reinforced concrete cross-sections
Structural engineering
STR-222

Concreteproperties py: Analyse reinforced concrete cross-sections

Concreteproperties Python library pre-installed on CalcTree. For section properties, moment-curvature and P–M diagrams. Get started in under 1min!

Python
September 2, 2025
Steelpy: Automate bending, shear, or slenderness checks
Structural engineering
United States
STR-223

Steelpy: Automate bending, shear, or slenderness checks

Use steelpy in CalcTree to query AISC shapes, compute section properties and bending checks, and export clean tables for design.

🇺🇸
US
Python
September 2, 2025
Steel Base Plate Calculator to Eurocode 3
Structural engineering
Europe
STR-40

Steel Base Plate Calculator to Eurocode 3

Free Steel Base Plate Design Tool to Eurocode 3. Step-by-step, engineering-grade tool with downloadable report.

🇪🇺
EUR
đť‘“(đť’™)
Python
August 27, 2025
Reinforced Concrete Column P-M Interaction Diagram Generator
Structural engineering
STR-336

Reinforced Concrete Column P-M Interaction Diagram Generator

Free Reinforced Concrete Column P-M Interaction Diagram Generator. Step-by-step, engineering-grade tool with downloadable report.

Python
August 27, 2025
Timber Beam Design to AS 1720.1:2010
Structural engineering
Australia and New Zealand
STR-334

Timber Beam Design to AS 1720.1:2010

Free Timber Beam Design Tool to AS 1720.1:2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 19, 2025
Timber Beam Design to Eurocode 5
Structural engineering
Europe
STR-39

Timber Beam Design to Eurocode 5

Free Timber Beam Design Tool to Eurocode 5. Step-by-step, engineering-grade tool with downloadable report.

🇪🇺
EUR
Spreadsheet
August 16, 2025
Reinforcement Development Length Calculator to AS 3600-2018
Structural engineering
Australia and New Zealand
STR-256

Reinforcement Development Length Calculator to AS 3600-2018

Free Reinforcement Development Length Calculator to AS 3600-2018. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Neutral Axis Calculator: RC Section to AS 3600:2018
Structural engineering
Australia and New Zealand
STR-254

Neutral Axis Calculator: RC Section to AS 3600:2018

Free Neutral Axis Calculator: RC Section to AS 3600:2018. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Python
August 13, 2025
Timber Column Design to AS 1720.1-2010
Structural engineering
Australia and New Zealand
STR-250

Timber Column Design to AS 1720.1-2010

Free Timber Column Design Tool to AS 1720.1-2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Timber Screw Joint Designer to AS 1720.1-2010
Structural engineering
Australia and New Zealand
STR-247

Timber Screw Joint Designer to AS 1720.1-2010

Free Timber Screw Joint Design Tool to AS 1720.1-2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
CLT Properties Calculator to ANSI/APA PRG 320
Structural engineering
United States
STR-168

CLT Properties Calculator to ANSI/APA PRG 320

Free CLT Properties Calculator to ANSI/APA PRG 320. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
Spreadsheet
August 13, 2025
Beam Analysis using Macaulay's Theorem
Structural engineering
STR-359

Beam Analysis using Macaulay's Theorem

Free Beam Analysis using Macaulay's Theorem Calculator. Step-by-step, engineering-grade tool with downloadable report.

Python
August 13, 2025
Bolt Group Analysis to AS 4100-2020
Structural engineering
Australia and New Zealand
STR-243

Bolt Group Analysis to AS 4100-2020

Free Bolt Group Analysis Design Tool to AS 4100-2020. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Fillet Weld Group Analysis to AS 4100-2020
Structural engineering
Australia and New Zealand
STR-251

Fillet Weld Group Analysis to AS 4100-2020

Free Fillet Weld Group Analysis Design Tool to AS 4100-2020. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Moment of Inertia Calculator: Circular Hollow Section
Structural engineering
STR-354

Moment of Inertia Calculator: Circular Hollow Section

Free Moment of Inertia Calculator: Circular Hollow Section. Step-by-step, engineering-grade tool with downloadable report.

đť‘“(đť’™)
August 13, 2025
Moment of Inertia: Rectangular Hollow Sections - SHS/RHS
Structural engineering
STR-208

Moment of Inertia: Rectangular Hollow Sections - SHS/RHS

Free Moment of Inertia Calculator: Rectangular Hollow Sections - SHS/RHS. Step-by-step, engineering-grade tool with downloadable report.

đť‘“(đť’™)
August 13, 2025
Moment of Inertia Calculator: Angle Section
Structural engineering
STR-353

Moment of Inertia Calculator: Angle Section

Free Moment of Inertia Calculator: Angle Section. Step-by-step, engineering-grade tool with downloadable report.

đť‘“(đť’™)
August 13, 2025
Concrete Column Design to AS 3600
Structural engineering
Australia and New Zealand
STR-249

Concrete Column Design to AS 3600

Free Concrete Column Design Tool to AS 3600. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Concrete Rectangular Footing Design to AS 3600-2018
Structural engineering
Australia and New Zealand
STR-255

Concrete Rectangular Footing Design to AS 3600-2018

Free Concrete Rectangular Footing Design Tool to AS 3600-2018. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Concrete Rectangular Beam Design to ACI-318-19
Structural engineering
United States
STR-167

Concrete Rectangular Beam Design to ACI-318-19

Free Concrete Rectangular Beam Design Tool to ACI-318-19. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
Spreadsheet
August 13, 2025
Cement, Sand & Aggregate Needed for a Concrete Element
Construction
CON-71

Cement, Sand & Aggregate Needed for a Concrete Element

Free Cement, Sand & Aggregate Calculator. Step-by-step, engineering-grade tool with downloadable report.

Spreadsheet
August 13, 2025
Concrete Column Design to ACI-318-19
Structural engineering
United States
STR-172

Concrete Column Design to ACI-318-19

Free Concrete Column Design Tool to ACI-318-19. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
đť‘“(đť’™)
Python
August 13, 2025
Steel Base Plate to AISC 360
Structural engineering
United States
STR-163

Steel Base Plate to AISC 360

Free Steel Base Plate Design Tool to AISC 360. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
Spreadsheet
August 13, 2025
Timber Bolt Joint Design to AS 1720.1-2010
Structural engineering
Australia and New Zealand
STR-244

Timber Bolt Joint Design to AS 1720.1-2010

Free Timber Bolt Joint Design Tool to AS 1720.1-2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Steel Purlins and Girts Calculator to AISI
Structural engineering
United States
STR-170

Steel Purlins and Girts Calculator to AISI

Free Steel Purlins and Girts Calculator to AISI. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
Python
August 13, 2025
Timber Nailed Joint Design to AS 1720.1-2010
Structural engineering
Australia and New Zealand
STR-253

Timber Nailed Joint Design to AS 1720.1-2010

Free Timber Nailed Joint Design Tool to AS 1720.1-2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Concrete Beam Design to AS 3600
Structural engineering
Australia and New Zealand
STR-248

Concrete Beam Design to AS 3600

Free Concrete Beam Design Tool to AS 3600. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Python
đť‘“(đť’™)
August 13, 2025
Timber Strut Design to AS 1720.1-2010
Structural engineering
Australia and New Zealand
STR-3

Timber Strut Design to AS 1720.1-2010

Free Timber Strut Design Tool to AS 1720.1-2010. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Concrete Slab-on-grade Design to AS 3600-2018
Structural engineering
Australia and New Zealand
STR-245

Concrete Slab-on-grade Design to AS 3600-2018

Free Concrete Slab-on-grade Design Tool to AS 3600-2018. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Spreadsheet
August 13, 2025
Steel Member Design to AS 4100
Structural engineering
Australia and New Zealand
STR-252

Steel Member Design to AS 4100

Free Steel Member Design Tool to AS 4100. Step-by-step, engineering-grade tool with downloadable report.

🇦🇺
AS/NZ
Python
đť‘“(đť’™)
August 13, 2025
Steel Beam and Column Designer to AISC 360-89
Structural engineering
United States
STR-171

Steel Beam and Column Designer to AISC 360-89

Free Steel Beam and Column Design Tool to AISC 360-89. Step-by-step, engineering-grade tool with downloadable report.

🇺🇸
US
Spreadsheet
August 13, 2025
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