SkyCiv Base Plate Design Software

Design steel base plates and cast-in anchorage to AISC, EN, AS and CSA.
Run code checks, generate full calculation reports, and export detail drawings.

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Starting a model in SkyCiv Base Plate software and getting the full results and detail drawings

Base Plate Design, Start to Finish

Base Plate and Anchorage Design Software

SkyCiv Base Plate Design covers the full column-to-foundation connection. Model the column, base plate, concrete support, cast-in anchors and welds in one place, then run steel, concrete, anchorage and weld checks against AISC, EN, AS or CSA.

Real-time 3D rendering updates as you type, so you can reposition anchors, resize the plate or change weld sizes and see the effect straight away.

Every check comes with a full step-by-step calculation report — equations, code references and scaled illustrations. When the design is done, the same model produces a dimensioned detail drawing ready to issue.

SkyCiv Base Plate Design interface showing the input panel and real-time 3D base plate model

How It Works

Base plate design software that runs the full workflow

Model

Select your column from AISC, EN, AS or CSA section databases. Set plate, concrete, anchor and weld properties with live 3D feedback on every change.

Check

Run steel, concrete, anchorage, and weld checks together. Review demand-to-capacity ratio and governing load combination in one table.

Draw

Generate a dimensioned detail drawing with title block, weld callouts and load schedule. Download it as a PDF or open it in SkyCiv CloudCAD to edit.

WHY ENGINEERs SWITCH

Discover SkyCiv Base Plate Design

Capabilities for modelling and analysing simple to complex structures.

Real-Time 3D Modelling

See the effect of every change as you make it, not after you solve.

  • Watch the model update as you change dimensions, materials and anchor positions.

  • Support for I-beams, rectangular HSS, square HSS and circular HSS.

  • Position anchor rods directly on the plate with live layout feedback.

  • Show anchor tension zones to see which anchors are active under each load case.

  • Visualize applied loads by clicking any load input cell.

Selecting column shape and support condition in the SkyCiv Base Plate Design model setup

Section and Material Databases

Standard sections and grades built in, custom values when you need them.

  • Wide flange and HSS sections from AISC, EN, AS and CSA libraries.

  • British sections available for Eurocode design, including UB, UC and SHS profiles.

  • Standard steel grades for column, plate and anchor rods, or enter custom Fy and Fu.

  • Concrete compressive strengths from the dropdown or user-defined.

Selecting a rectangular HSS profile and steel grade from the built-in CSA section database

Support for Real Loading Conditions

Design for the loads your column actually carries.

  • Axial compression and tension.

  • Shear.

  • Bending about the strong axis.

  • Multiple load combinations in a single run.

  • Governing load combination reported for every check.

Isometric base plate model on a concrete support with axial, shear and moment load arrows and axis labels

Complete Cast-In Anchorage Design

Every anchor failure mode in the code, checked and explained.

  • Full ACI 318-19 anchor check suite, with equivalent provisions for EN 1992-4, AS 5216 and CSA A23.3.

  • Steel strength in tension and shear, including anchor rod bending under eccentric shear.

  • Concrete breakout in tension and shear, pullout, side-face blowout and pryout.

  • Tension-shear interaction for both anchor steel and concrete.

  • Single anchor and anchor group behavior determined automatically from your geometry.

  • Graphical illustrations of every failure mode, so you can see the mechanism behind a failed check.

  • Projected failure areas displayed for breakout checks.

Anchorage results table listing anchor rod tensile, concrete breakout and pullout checks with demand-to-capacity ratios

Automated Detailing Checks

Catch the constructability problems that only show up on site.

  • Verify clearances, edge distances, anchor spacing, concrete cover and minimum and maximum dimensions before you solve.

  • Detect clashes and overlaps between plate, anchors, welds and column.

  • Failed checks point to the specific dimension that needs adjusting.

  • Choose which detailing checks apply from Design Settings.

  • Override and run anyway where a flagged item is acceptable for your project.

Detailing Check Summary showing passed clearance and spacing checks with one flagged geometry conflict

Transparent Calculation Reports

Reports you can inspect, interrogate and understand.

  • Full step-by-step hand calculations for every check — no black boxes.

  • Referenced equations with clause numbers from your selected design code.

  • Drawn-to-scale illustrations of inputs, dimensions and anchor check geometries.

  • Pass and fail status summarised up front, with governing load combinations identified.

  • Export to PDF or HTML.

Calculation report extract showing base plate cantilever dimensions and the referenced AISC Design Guide 1 equations

Automatic Detail Drawings

Finish the design and leave with a drawing, not just a report.

  • Generate a complete drawing sheet from a finished design.

  • Includes plan and elevation views, dimensions, weld callouts, load schedule and title block.

  • Download as a PDF ready to issue, or open the drawing in SkyCiv CloudCAD.

  • Edit layers, add notes and adjust the sheet in CloudCAD.

Generated base plate detail drawing with plan and elevation views, dimensions and weld callouts

International Design Code Support

One module, four major design codes.

  • Column and base plate design to AISC 360-22, AISC Design Guide 1, EN 1993-1-8, AS 4100:2020 and CSA S16:19.

  • Concrete support design to ACI 318-19, EN 1992-1-1, AS 3600:2018 and CSA A23.3:19.

  • Anchorage design to ACI 318-19, EN 1992-4:2018, AS 5216:2021 and CSA A23.3:19.

  • NSCP 2015 also supported.

  • Imperial and metric units for AISC. Metric units for EN, AS and CSA.

Design code selection in SkyCiv Base Plate Design, with AISC, EN, AS and CSA options

API Access

Design base plates programmatically, at any volume.

  • Run base plate design calculations through the SkyCiv API.

  • Automate repetitive designs across a project, product line or configurator.

  • Retrieve full check results and calculation reports without opening the interface.

  • Available for AISC, EN, AS and CSA.

  • Integrate base plate design into your own tools and workflows.

SkyCiv API documentation for the standalone.baseplate module with code examples
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Watch the SkyCiv Base Plate Design Software demo

supported standards

Globally Supported Design Standards

Capabilities for modelling and analysing simple to complex structures.

design standards

Structural design codes and

design guides

Base plate, concrete, anchorage and weld design across major international code families, with imperial and metric support.

Region Supported Codes, Design Guides, and Unit System
United States AISC 360-22, AISC Design Guide 1 3rd Edition, ACI 318-19, and AISC Manual 15th Edition (Imperial and Metric)
Europe EN 1993-1-8:2005, EN 1992-1-1:2004, EN 1992-4:2018, SCI P358, and SCI P398 (Metric)
National Annex to BS EN 1993-1-8:2024
Australia AS 4100:2020, AS 3600:2018, and AS 5216:2021 (Metric)
Canada CSA S16:19, CSA A23.3:19, and CAC Concrete Design Handbook 3rd Edition (Metric)
Philippines NSCP 2015 (Metric)

FAQ’s

Your Questions Answered

Base plate design follows four steps. First, select the column section and size the plate, with enough room to place the anchors at adequate edge distances. Second, select a plate thickness and check it for bending. Choose from standard manufactured thicknesses rather than an arbitrary value, and increase it if the check fails. Third, size the anchor bolts for tension, shear and the concrete failure modes, again using commonly available anchor diameters. A total of four anchors is a common practical minimum. Fourth, specify the weld, with fillet welds usually the more economical choice unless the moment demand requires full penetration.

AISC Design Guide 1, EN 1993-1-8, AS 4100 and CSA S16 each set out this sequence. SkyCiv Base Plate Design runs all four steps in one model.

Base plate thickness is governed by bending in the plate, and where that bending occurs depends on the loading. Under axial compression, the plate is checked as a cantilever bending under the concrete bearing pressure at the critical sections just outside the column. Where moment or uplift is present, the plate is also checked for bending on the tension side, spanning between the column face and the anchor line. When moment acts, both checks apply and the thicker requirement governs.

SkyCiv Base Plate Design evaluates each and reports the governing case.

A pinned base is assumed to transfer axial load and shear only, with no moment — typically a thinner plate with anchors placed close to the column, giving a short lever arm. A fixed base resists column moment, requiring anchors set further from the column axis, a thicker plate, and often deeper embedment.

SkyCiv Base Plate Design covers both cases.

Anchor bolts are checked for both steel and concrete failure. Steel checks cover tensile and shear rupture of the anchor rod. Concrete checks, per ACI 318-19 Chapter 17, cover tension breakout, shear breakout, pullout, side-face blowout and pryout, with tension-shear interaction applied to both materials. The highest demand-to-capacity ratio governs, and it is frequently a concrete mode rather than the rod itself. EN 1992-4, AS 5216 and CSA A23.3 use equivalent provisions.

SkyCiv checks every mode and shows which one governs.

Yes. SkyCiv’s free online steel base plate calculator runs in your browser with no installation, covering column base plate and cast-in anchorage design to AISC, EN, AS, CSA and NSCP.

Try free calculator.

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testimonials

Trusted by thousands

The ease of use and the presentation of the results are both awesome. I have had ongoing interaction with the support team and everyone is excellent.

Mitch Frumkin

Mitch Frumkin

CEO OF KIPCON

It is used for various civil and mechanical engineering courses and the students love it. We are happy with the continuous updates to SkyCiv as well, highly recommended.

Mitch Frumkin

Dr Kenneth R. Leitch

Assoc. Prof. at Texas A&M

It was easily the most intuitive package available to learn; it is particularly easy to build the 3D model and define nodes, members, supports, materials, sections, then apply loads & combinations.

Mitch Frumkin

Stuart Agars

Managing Director of Struct-Sure Limited

SkyCiv has been a great tool to help efficiently and clearly document and update design results for a member of a small company with multiple responsibilities.

Mitch Frumkin

Lydia Fahrenkrug

Engineer at MT Solar

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case studies

Real projects using SkyCiv

Intuitive Interface

Our easy to learn, powerful to use, intuitive interface allows you to quickly access all the features you need. Packed with smart features like the Pen tool, Repeat/Mirror, and Bulk Editing.Your Content Goes Here

Comprehensive Design Code Support

Our software supports a comprehensive array of steel, wood, and concrete design codes including AISC, EN, AISI, NDS, AS, and CSA.

API Technology

SkyCiv is a customised solution featuring seamless integrations, easy implementations, automated reports and a scalable design and architecture.

24/7 Customer Support

SkyCiv is a customised solution featuring seamless integrations, easy implementations, automated reports and a scalable design and architecture.

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