ILX Calcs user manual
ILX Calcs does structural calculations on the web: documented member and element calculations for steel, wood, concrete, foundations, masonry and cold-formed steel, and the loads and analysis tools around them. Every calculation shows its equations with the code clause, the governing load combination and a status for each check, with diagrams, a calculation report and, for most types, a drawing sheet.
You are the engineer of record. ILX Calcs applies the code provisions as written; where a provision leaves a choice to the engineer (a deflection limit, a load factor option, a bracing assumption), the choice is an input with its usual value prefilled, never a hidden assumption. How far each type has been checked is stated plainly in its chapter, under Verification examples.
New here: training #
Short walk-throughs with real inputs and the results the app gives.
| Training | What you learn |
|---|---|
| 1. Getting started | One steel beam, start to report |
| 2. Projects, settings, title block and output | Your firm on every report and sheet |
| 3. Reading checks, steps and clauses | How to read a calculation that fails |
| 4. The Wizard and auto-design | Picture cards, and letting the search propose a member |
| 5. Units, and shapes from other markets | Metric, and European shapes on AISC 360 |
| 6. Steel, 7. Wood, 8. Concrete, 9. Foundations, 10. Masonry, 11. Cold-formed steel, 12. Loads, 13. Utilities | One worked calculation per subject |
| 14. A small project | From floor load to footing, chaining calculations |
| 15. The section builder | Properties of any section, built up from parts |
| 16. The truss designer | Layout, automatic sizing, and its preview label |
| 17. The verification report and deviations | What stands behind a result |
| 18. Limits and your responsibility | What stays with you |
Using the app #
Getting started, Projects and files, Reports and settings, Verification, Keyboard shortcuts and troubleshooting.
Calculation types #
This version has 230 types. The New calculation window lists the ones this server has.
Steel #
- Steel beam
- Steel column
- Column base plate
- Composite beam
- Steel section selection
- Steel beam with torsion
- Eccentric bolt group
- Eccentric weld group
- Member stability bracing
- Steel joist
- Steel deck (gravity)
- Steel deck diaphragm
- Steel truss
- Concrete-filled HSS column
- Steel lintel
- Floor vibration
- Steel stair
- Beam with web openings
- Crane runway beam
- Castellated or cellular beam
- Guard or barrier post
- Monorail beam
- Steel tension member / brace
- Concentrated forces on beams
- Steel fire resistance
- Roof ponding
- Seismic member checks
- Encased composite column
- Plate girder
- Web-tapered member
Wood #
- Sawn lumber beam
- Glulam and SCL beam
- Wood column and post
- Wood stud wall
- CLT panel
- Wood shear wall
- Wood diaphragm
- Wood fastener connection
- Wood bearing and notches
- CLT shear wall
- Continuous rod tie-down
- Wood ledger
- Flitch-plate beam
- Wood stair
- Wood I-joist
- Rafters and ceiling ties
- Wood truss
- Fire design of exposed wood
- Wood deck framing
- Split-ring and shear-plate connections
- Wood design values
- Wood shrinkage and moisture
- Steel side and knife plate connections
- Moment and eccentric fastener groups
- Timber rivet connections
- Notched and tapered member ends
- Wood floor vibration
- Built-up and spaced columns
- Round timber poles and piles
- Curved and tapered glulam
Concrete #
- Concrete beam
- Concrete column
- One-way slab
- Two-way slab
- Concrete shear wall
- Punching shear
- Anchors in concrete
- Post-installed anchors
- Rebar development and splices
- Beam-column joint
- Post-tensioned slab strip
- Shear friction
- Embed plate
- Concrete diaphragm
- Deep beam (strut-and-tie)
- Corbel
- Tilt-up wall panel
- Concrete stair
- Coupling beam
- Dapped-end beam
- Bearing on concrete
- Joist and waffle slab
- Continuous concrete beam
- Prestressed concrete beam
- Special moment frame members
- Ledge and inverted-tee beam
- Hollow-core plank
- Concrete deflection
- Liquid-containing tank wall
- Concrete fire resistance
Foundations #
- Spread footing
- Wall footing
- Pole footing
- Combined footing
- Strap footing
- Mat foundation
- Pile cap
- Pile group
- Laterally loaded pile
- Beam on elastic foundation
- Slab on grade
- Retaining wall
- Basement (restrained) retaining wall
- Gravity retaining wall
- Segmental retaining wall
- Gabion retaining wall
- Sheet pile wall
- Soldier pile wall
- Bearing capacity and settlement
- Pile axial capacity
- Laterally loaded pile (p-y)
- Drilled pier
- Helical pile
- Pile capacity from CPT
- Braced excavation
- Slope stability
- Liquefaction triggering
- Ground improvement
- Micropile
- Ground anchor
Masonry #
- Masonry shear wall
- Masonry lintel and beam
- Masonry column and pilaster
- Masonry wall out-of-plane
- Masonry pilaster with wall
- Masonry bearing
- Masonry anchor bolts
- Masonry wall at openings
- Anchored veneer
- Adhered veneer
- Masonry lap splice
- Masonry retaining wall
- Unreinforced masonry wall
- Masonry infill
- Prestressed masonry wall
- AAC masonry wall
- Glass unit masonry
- Freestanding masonry wall
- Masonry fire resistance
- Masonry strength f′m
- Empirical masonry design
- Corbelled masonry
- Masonry parapet
- Ledger to masonry wall
- Masonry arch
- Bond beam chord and collector
- Movement joints
- Masonry partition wall
- Masonry chimney
- Masonry beam and deep beam
Cold-formed steel #
- Cold-formed steel stud
- Cold-formed steel shear wall
- Cold-formed steel joist
- Cold-formed steel header
- Cold-formed steel fastener connection
- Cold-formed steel rafter
- Cold-formed steel curtain wall
- Cold-formed steel bridging
- Cold-formed steel strap braced wall
- Cold-formed steel purlin
- Cold-formed steel truss
- Cold-formed steel clip angle
- Cold-formed steel diaphragm
- Cold-formed steel parapet
- Cold-formed steel ceiling framing
- Cold-formed steel girt
- Built-up cold-formed steel member
- Cold-formed steel jamb studs
- Cold-formed steel track
- Web holes in cold-formed members
- Cold-formed steel track anchorage
- Cold-formed steel floor vibration
- Cold-formed steel soffit framing
- Cold-formed steel bypass and infill framing
- Sheathing-braced cold-formed steel stud
- Cold-formed steel special bolted moment frame
- Cold-formed steel shear wall chord studs
- Cold-formed steel truss bracing
- Cold-formed steel storage rack
- Cold-formed steel sloped and mansard wall
Loads calculations #
- Wind loads
- Seismic base shear (ELF)
- Load takeoff
- Snow loads
- Diaphragm forces
- Rain load
- Flood loads
- Lateral pressure from surface loads
- Tornado loads
- Story drift and P-delta
- Seismic site parameters and spectrum
- Wind loads, envelope procedure
- Wind on other structures
- Rigid diaphragm torsion
- Seismic nonstructural components
- Seismic wall anchorage
- Live load reduction
- Atmospheric ice loads
- Simplified seismic design
- Nonbuilding structures (seismic)
- Modal response spectrum
- Gust-effect factor
- Impact and machinery loads
- Fall-protection anchorage
- Fluid and hydrostatic pressure
Utilities #
- Continuous beam analysis
- 2-D frame analysis
- 2-D truss analysis
- Section properties
- Load chasedown
- Load combinations
- Wall and pier rigidity
- Plate bending
- Effective length factor
- Moving load
- Dead load build-up
- Unit converter
- Beam with varying stiffness
- Cable and catenary
- Natural frequency and dynamic response
- Stress transformation
- Custom calculation
- Thermal movement
- Quantity takeoff
- Rebar tables
- Roof geometry
- Shape browser and comparison
- Influence lines
- Arch analysis
- Beam grid (grillage)
Code basis #
The target editions: AISC 360-22 and the AISC Manual 16th Ed.; ACI 318-19; NDS 2024 and SDPWS 2021; TMS 402/602-22; AISI S100-16 and S400-20; ASCE/SEI 7-22; IBC 2021 for the deflection limits you enter. Not every module has been compared line by line with its target edition: each chapter says what its module rests on, and Verification explains how to read that.