Calculation Modules

The core of ENERCALC's Structural Engineering Library is its calculation modules. Dating back to 1983 when the Structural Engineering Library was released as a set of spreadsheet templates, our modules are designed as “fill-in-the-blanks” style of interactive programs. Simply type in a value and the resulting analysis or design is instantly there for your review.

All modules in the currently available build conform to:

IBC 2018 / 2015
CBC 2019 / 2016
ASCE 7-16 / 7-10
ACI 318-14
ACI 530-13
TMS 402-16
AISC 360-16 / 360-10
NDS 2018 / 2015

The calculation module list is an ever-expanding set of structural calculations that provide analysis and design for the elements of a building. As requests are received from our users we develop additional modules…..and make use of the proven steel, concrete, timber, finite element analysis, and other engineering “solvers” we have developed.

Currently Included Modules:
Click on a module name to see a module-specific feature list

Multiple Simple Beam

Analyzes and designs up to 12 different non-composite beams within a single calculation item
Permits wood, steel, and concrete beams
Permits cantilevers to be modeled at one end or both ends
Includes full wood and rolled steel section databases
Allows fixed or pinned support conditions
Incorporates point loads, concentrated moments, full-length uniform loads, partial-length uniform loads, and trapezoidal loads
Includes option to perform automatic unbalanced live load placement (skip-loading)
Incorporates either ASD or LRFD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Steel Beam

Analyzes and designs individual non-composite steel beams
Permits multi-span continuous beams
Permits cantilevers to be modeled at one end or both ends
Allows fixed or pinned support conditions
Includes full rolled steel section database
Incorporates point loads, concentrated moments, full-length uniform loads, partial-length uniform loads, and trapezoidal loads
Includes option to perform automatic unbalanced live load placement (skip-loading)
Incorporates either ASD or LRFD design methodology
Considers user-specified allowable ratios for total load deflection and live load deflection
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Composite Steel Beam

Analyzes and designs individual composite steel beams
Includes full rolled steel section database and metal floor deck database
Incorporates point loads, concentrated moments, full-length uniform loads, partial-length uniform loads, and trapezoidal loads
Allows user to specify the timing of the application of individual loads with respect to the concrete achieving 75% of design strength
Incorporates either ASD or LRFD design methodology
Considers user-specified allowable ratios for total load deflection and live load deflection
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Steel Beam with Torsional Loads

Analyzes and designs individual non-composite steel beams
Allows fixed or pinned support conditions
Includes full rolled steel section database
Incorporates point loads, full-length uniform loads, partial-length uniform loads, and trapezoidal loads at a specified eccentricity
Incorporates concentrated moments causing bending or torsion
Incorporates either ASD or LRFD design methodology
Considers user-specified allowable ratios for total load deflection and live load deflection
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenario
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Wood Beam

Analyzes and designs individual sawn lumber, glulam, and manufactured wood beams
Permits multi-span continuous beams, Permits cantilevers to be modeled at one end or both ends
Allows fixed or pinned support conditions
Includes sawn lumber and glulam databases, and a growing list of databases for manufactured wood products
Incorporates point loads, concentrated moments, full-length uniform loads, partial-length uniform loads, and trapezoidal loads
Includes option to perform automatic unbalanced live load placement (skip-loading)
Incorporates either ASD or LRFD design methodology
Considers user-specified allowable total and live load deflection ratios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Concrete Beam

Analyzes and designs individual reinforced concrete beams
Permits multi-span continuous beams
Permits cantilevers to be modeled at one end or both ends
Allows fixed or pinned support conditions, Permits up to six groups of reinforcing bars per span
Capable of analyzing and designing rectangular, tee, H, and trapezoidal shaped sections
Incorporates point loads, concentrated moments, full and partial-length uniform loads, and trapezoidal loads
Includes option to perform automatic unbalanced live load placement (skip-loading)
Considers user-specified allowable ratios for total load deflection and live load deflection
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

Masonry Beam

Analyzes and designs individual single-span masonry lintels
Allows fixed or pinned support conditions
Capable of analyzing and designing rectangular reinforced sections
Incorporates point loads and uniformly distributed loads
Incorporates either ASD or SD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases

General Beam Analysis

Provides analysis capability (without design or code checking functionality) for an individual beam of specified section properties
Permits multi-span continuous beams
Permits cantilevers to be modeled at one end or both ends
Allows fixed or pinned support conditions
Incorporates point loads, concentrated moments, full-length uniform loads, partial-length uniform loads, and trapezoidal loads
Includes option to perform automatic unbalanced live load placement (skip-loading)
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Steel Column

Analyzes and designs individual steel columns
Permits slenderness to be defined in a variety of ways, including the use of built-in non-sway alignment charts
Allows various top and bottom support conditions
Includes full rolled steel section database
Considers combined axial load and biaxial bending
Axial loads may be specified with or without eccentricity
Lateral loads can be point loads, concentrated moments, full-length uniform loads, and partial-length uniform loads creating bending about either axis
Incorporates either ASD or LRFD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Wood Column

Analyzes and designs individual wood columns
Permits slenderness to be defined in a variety of ways
Allows various top and bottom support conditions
Includes full wood stress database with sawn lumber sections, glulam members and a growing number of proprietary manufactured wood products
Considers combined axial load and biaxial bending
Axial loads may be specified with or without eccentricity
Lateral loads can be point loads, concentrated moments, full-length uniform loads, and partial-length uniform loads creating bending about either axis
Incorporates either ASD or LRFD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Concrete Column

Analyzes and designs individual concrete columns
Permits slenderness to be defined in a variety of ways, including the use of built-in non-sway alignment charts
Allows various top and bottom support conditions
Includes twelve parametrically defined concrete section shapes with user-definable rebar sets
Considers combined axial load and biaxial bending
Axial loads may be specified with or without eccentricity
Lateral loads can be point loads, concentrated moments, full-length uniform loads, and partial-length uniform loads creating bending about either axis
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Masonry Column

Analyzes and designs individual masonry columns
Permits slenderness to be defined in a variety of ways
Allows various top and bottom support conditions
Considers square or rectangular section shapes with user-definable rebar sets
Considers combined axial load and uniaxial bending
Axial loads may be specified with or without eccentricity
Lateral loads can be point loads, concentrated moments, full-length uniform loads, and partial-length uniform loads creating bending about X-X axis
Incorporates either Allowable Stress Design or Strength Design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Concrete Slender Wall

Analyzes and designs individual concrete walls
Analysis incorporates P-Delta deflections
Permits 1-story or 2-story walls with or without parapet
Allows various top and bottom support conditions
Incorporates reveals with various reinforcing options
Considers combined axial load and bending
Axial loads may be specified with or without eccentricity
Lateral loads can be concentrated loads, distributed loads, or uniform pressure loads from wind or seismic
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Masonry Slender Wall

Analyzes and designs individual masonry walls
Analysis incorporates P-Delta deflections
Permits 1-story or 2-story walls with or without parapet
Allows various top and bottom support conditions
Considers combined axial load and bending
Axial loads may be specified with or without eccentricity
Lateral loads can be concentrated loads, distributed loads, or uniform pressure loads from wind or seismic
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Concrete Shear Wall

Analyzes and designs individual concrete shear walls
Allows solid walls and walls with setbacks
Considers combined axial load and bending
Vertical and lateral loads can be specified as point loads or uniformly distributed loads
Offers the option to design a wall footing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Masonry Shear Wall

Analyzes and designs individual masonry shear walls
Allows solid walls and walls with setbacks
Considers combined axial load and bending
Considers the resistance from bond beam reinforcing and/or horizontal joint reinforcing
Vertical and lateral loads can be specified as point loads or uniformly distributed loads
Offers the option to design a wall footing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Wood Shear Wall

Analyzes and designs individual wood shear walls with the Individual Full-Height Wall Segment Shear Walls method
Allows solid walls or walls with openings
Considers combined axial load and bending
Vertical and lateral loads can be specified as point loads or uniformly distributed loads
Reports results for sheathing design, sheathing attachment, and chord design
Offers the option to design a wall footing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Cantilevered Retaining Wall

Analyzes and designs individual cantilevered retaining walls
Permits multiple stem sections to be defined with concrete or masonry of various thickness
Offers a choice of lateral pressure method (E.F.P., or Coulomb)
Considers combined axial load and bending
Allows the definition of a wide variety of loads including wind load on exposed stem above soil, surcharges on toe and heel, vertical load applied on top of stem, lateral load on stem, and effects of adjacent footing loads
Provides user with control over which components of resisting forces to consider
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

General Footing

Analyzes and designs individual spread footings for uniaxial or true biaxial moment
Incorporates user-specified factors of safety on sliding and overturning
Offers ability to automatically increase allowable soil bearing pressure as a user-specified function of footing width and/or depth below a reference elevation
Permits the application of vertical loads, overburden loads, shears, and moments
Allows the definition of eccentricity for vertical loads
Provides option to automatically calculate footing plan dimensions and thickness
Offers option to enter user-specified allowable stress increase factor for soil bearing pressure
User defined reinforcing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Wall Footing

Analyzes and designs individual wall footings
Incorporates user-specified factors of safety on sliding and overturning
Offers ability to automatically increase allowable soil bearing pressure as a user-specified function of footing width and/or depth below a reference elevation
Permits the application of vertical loads, overburden loads, shears, and moments
Provides option to automatically calculate footing width and thickness
Offers option to enter user-specified allowable stress increase factor for soil bearing pressure
User defined reinforcing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Combined Footing

Analyzes and designs combined footings subject to loads from two columns
Incorporates user-specified factors of safety on sliding and overturning
Offers ability to automatically increase allowable soil bearing pressure as a user-specified function of footing width and/or depth below a reference elevation
Permits the application of vertical loads, overburden loads, shears, and moments
Offers option to enter user-specified allowable stress increase factor for soil bearing pressure
User defined reinforcing
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Point Load on Slab

Evaluates an unreinforced, soil-supported slab subject to rectangular patch loads
Incorporates user-specified factor of safety
Permits the application of vertical loads
Incorporates either ASD or LRFD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

2-D Frame Analysis

Provides general purpose 2D frame analysis capability
Incorporates stress checking based on ASD or LRFD design methodology
Frame Wizard offers the ability to quickly define geometry parametrically for many typical configurations of trusses and frames
Features free-form definition of joint coordinates and member incidences
Joint generation function facilitates the automatic generation of joints and members for repetitive geometry
Allows loads to be applied to joints and to members
Offers option of fixed or free boundary conditions
Includes full wood and rolled steel section databases
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Torsional Analysis of Rigid Diaphragms

Analyzes a rigid diaphragm to determine the distribution of loads to resisting elements
Incorporates user-specified diaphragm force and two options for specifying optional orthogonal force
Considers user-specified point of application of diaphragm force
Automatically incorporates accidental torsion due to minimum eccentricity as required by ASCE 7
Creates a load application point at a user-specified number of locations around an ellipse defined by the eccentricities along the two axes of the diaphragm
Applies the vector sum of the primary and orthogonal force components in a user-specified number of directions at each load application point, or varies the load in an elliptical pattern between two specified magnitudes that occur at 90 degrees to each other
Convenient input tools facilitate the data entry for up to 160 resisting elements of walls, beams, or general resisting elements of specified stiffness
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

General Section Property Calculator

Analyzes a user-defined section and reports section properties
Includes full rolled steel section database
Permits rectangular and circular shapes to be defined and incorporated into the section
Includes eight parametrically defined custom shapes
Sketches the section and reports area, moments of inertia, radii of gyration, elastic and plastic section moduli, c.g. locations, and dimensions from c.g. to extreme edges
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Pole Footing Embedded in Soil

Analyzes a pole footing embedded in soil and returns the minimum required embedment depth or the resulting pressures based on a user-specified embedment depth
Evaluates round or square poles
Provides option to consider restraint at ground surface
Offers two options to limit the maximum allowable lateral bearing pressure
Permits the application of lateral concentrated loads, lateral distributed loads, applied moments, and vertical loads
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Pile Group Analysis

Analyzes a pile group for the applied loads and returns the maximum and minimum pile forces
Accommodates pile groups with up to twelve piles
All pile locations are user-defined, making it possible to evaluate pile groups in their as-driven locations
Allows vertical loads to be applied at up to three different locations on a pile cap
Force distribution is based on the assumptions that the pile cap is rigid and that all piles have equal vertical stiffness
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Rebar Development

Calculates straight development length, hooked development length, and lap splice lengths
Allows up to 15 individually identifiable development/splice conditions to be defined per calculation item
Performs calculations according to ACI 318-14/11/08/05
Convenient dropdown list boxes and simple checkboxes collect all of the pertinent data required
Reports straight and hooked development lengths for bars in tension and in compression
Reports splice lengths for Class A, Class B, and compression splices
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient summaries and generous detail in the on-screen and printed results

Wood Ledger

Analyzes and designs a wood ledger connected to a wood or concrete support with steel bolts at a user-defined spacing
Includes full wood stress database
Permits loads to be applied as uniformly distributed vertical loads, repetitive concentrated vertical loads at a uniform spacing, and horizontally oriented shear loads
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Includes rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.

Steel Base Plate

Analyzes and designs individual steel base plates
Includes full rolled steel section database for column selection
Incorporates axial loads, shear loads parallel to the web of a wide flange column, and moments about the strong axis of the column
Offers two options for determining the assumed bearing area
Incorporates either ASD or LRFD design methodology
Provides flexible method of defining anchor bolt locations and strengths
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Steel Bolt Group Analysis

Analyzes a user-defined pattern of bolts and returns the total shear force applied to each bolt in the group
Allows complete flexibility with regard to the location of the center of force and the orientation of the force
Incorporates either ASD or LRFD design methodology
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results

Beam on Elastic Foundation

Analyzes and designs individual soil-supported reinforced concrete beams
Permits up to six groups of reinforcing bars per span
Capable of analyzing and designing rectangular, tee, H, and trapezoidal shaped sections
Incorporates point loads, concentrated moments, full and partial-length uniform loads, and trapezoidal loads
Considers user-specified allowable soil bearing pressure
Offers the convenience of fill-in-the-blanks style forms and instantaneous recalculation to facilitate the evaluation of "what-if" scenarios
Provides highly efficient results summaries as well as generous detail in the on-screen and printed results
Provides sketch graphics to verify dimensions and load placement - including rich, 3D graphics that support zoom, pan, and many customizable view options. Example 3D image shown below.
Provides shear, moment and deflection diagrams for all load cases