ENERCALC Structural Engineering Software
Used for decades by thousands of small engineering firms
As of December 2025, ENERCALC users include…
- 373 firms who have been active subscribers for 10,000 days or more
(since at least July 1997) - 1815 firms who have been active subscribers for 5,000 days or more
(since at least Mar 2011) - SIXTEEN of the top 20 ENR 2025 Top 500 Design Firms are active ENERCALC users. Average tenure? 31 YEARS.
- We still have our very first customer from 1982.
- Despite these numbers, our “median customer” has 2 seats and fewer than 10 engineers. Small firms are where we live.
Reasonable pricing:
- ENERCALC: $1699 per year for 2 users, $199 per month for 2 users ($71 per seat per user per month)
- SEL-EARTH: $499 per year for 2 users. Includes only our 7 earth-retention structure / retaining wall modules
- See complete pricing details here.
Comprehensive, yet easy to use – by design.
ENERCALC (also known as ENERCALC SEL, or the ENERCALC Structural Engineering Library) is a structural / civil engineering calculation, analysis, and design software package that includes 64 structural engineering design and analysis modules in one system. See the bottom of this page for a complete list.
ENERCALC is a versatile toolkit for the practicing engineer. Small projects of 5 stories or fewer dominate the structures built nationwide and this is where our software excels.
ENERCALC is designed to help you complete 90% of your structural engineering design work – while simplifying the process as much as possible. You’ll find a consistent user interface, colors, fonts, and workflow across each module. This consistency produces a familiarity similar to the muscle memory you develop while training for a sport.
ENERCALC provides the practicing engineer with a large toolkit of capabilities to design the elements of structures and also provides an environment to develop sets of project engineering calculations that contain other project files you create or reference, such as EXCEL spreadsheets, WORD documents, PDF files, scanned images, and general project information.
Six fundamental properties of ENERCALC intended to make complex design work simpler and easier:
Diverse calculation
types & materials
Steel, wood, concrete, masonry, and composite in the same project. Switch materials without switching software. Beams, columns, walls, foundations, earth-retention structures, and analysis modules.
Easy Tabular Navigation
Every module follows the same layout: inputs on the left, results on the right. Learn one, you’ve learned them all
Rich Responsive Graphics
See your design update in real time as you change inputs. Catch errors visually before they reach a submittal
Simple Intuitive Inputs
Fill in what you know. ENERCALC handles the code lookups, load combinations, and iteration
Detailed Calculations
Detailed intermediate values, Excel intermediate value exports, and more.
Project Based Organization
Group your calcs, spreadsheets, PDFs, images, and reference docs in one project file. No more hunting through folders
Why ENERCALC?
Try it yourself using our free 30 day trial
Do real work. Submit project reports with your firm name on them for approval. No watermarks, 100% of our paid functionality.
64 calculation modules
Up to date including IBC 2024, ASCE 7-22, ACI 318-25 & more
Beams – Multiple Simple Beam – Steel Beam – Composite Steel Beam – Steel Beam with Torsional Loads – Concrete Beam – Masonry Beam – Wood Beam – Wood Ledger – Flitch Plated Wood Beam
Columns – Steel Column – Wood Column – Concrete Column – Masonry Column
Foundations – General Footing – General Footing by FEM – Wall Footing – Combined Footing – Beam on Elastic Foundation – Pole Footing Embedded in Soil – Pile Group Analysis – Point Load on Slab
Wind Loads – ASCE 7-22 Wind Forces, Chapter 27 (Directional Procedure) – ASCE 7-22 Wind Forces, Chapter 28 (Envelope Procedure) – ASCE 7-22 Wind Forces, Chapter 30, Part 1 – ASCE 7-22 Wind Enclosure – ASCE 7-16 Wind Forces, Chapter 27, Part 1 – ASCE 7-16 Wind Forces, Chapter 28, Part 2 & Chapter 30, Part 2 – IBC 2015 1609.6 Alternate All-Heights Wind – ASCE 7-10 Wind Forces, Chapter 27, Part 1 – ASCE 7-10 Wind Forces, Chapter 28, Part 2 & Chapter 30, Part 2 – ASCE 7-10 Wind Enclosure – ASCE 7-16 Wind Enclosure
Walls – Concrete Slender Wall – Masonry Slender Wall – Concrete Shear Wall – Masonry Shear Wall – Wood Shear Wall
Retaining Walls / Earth Retention Structures – Cantilevered Retaining Wall – Restrained Retaining Wall – Tapered Stem Retaining Wall – Gravity Retaining Wall – Gabion Retaining Wall – Soldier Pile Retaining Wall – Segmental Retaining Wall
Analysis – ENERCALC 3D – 2D Frame – Torsional Analysis of Rigid Diaphragm – General Section Property Calculator – General Beam Analysis
Miscellaneous – Steel Base Plate – Steel Base Plate by FEM – Steel Bolt Group Analysis – Rebar Development
Seismic Loads – ASCE 7-22 Seismic Base Shear – ASCE 7-22 Seismic Wall Anchorage – Seismic Demands on Nonstructural Components – ASCE 7-16 Seismic Base Shear – ASCE 7-16 / ASCE 7-10 Seismic Demands on Nonstructural Components – ASCE 7-16 / ASCE 7-10 Seismic Wall Anchorage
Other Loads – ASCE 7-22 Live Load Reduction – ASCE 7-22 Snow Loads – ASCE 7-16 / ASCE 7-10 Snow Loads – ASCE 7-16 / ASCE 7-10 Live Load Reduction – Project Load Group Builder