How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- ETABS is the building specialist: the most productive environment for concrete and steel buildings and high rise work, priced by quote through CSI.
- SAP2000, from the same company, is the generalist for bridges, tanks and unusual geometry that ETABS handles awkwardly.
- STAAD.Pro is the broad general analysis standard, with guide pricing around 3,995 dollars per year and code coverage across many countries.
- RISA-3D at about 1,970 dollars per year is the US firm's versatile workhorse, and SkyCiv from a reported 79 dollars per month brings real analysis to the cloud.
- Software calculates; a licensed engineer stamps. No tool here replaces engineering judgement, code interpretation or the professional liability that sits with the engineer of record.
Quick comparison
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The best structural design software
#1ETABS
Best for: Building and high rise analysis3.8/5 on
G2 (6 reviews, checked Oct 2026)
Visit csiamerica.com
Starting priceSee website
Free planNo
ETABS is what building engineers mean when they say structural software. Its whole model of the world, storeys, similar floors, wall and frame objects, matches how buildings are actually designed, and in seismic regions its workflow for lateral systems is the profession's common language.
Its maker, CSI, prices through quotes and resellers, so the field says See website. Budget in the multi thousand dollar range per seat with maintenance, and budget the training too: ETABS repays firms that invest in both, and punishes dabbling in ways that only show up at checking time.
What we like- Purpose built for buildings: floors, walls, cores and diaphragms are first class objects, not workarounds, the standard environment for high rise and seismic building design in much of the world, nonlinear and staged construction analysis for demanding projects, taught widely in engineering schools, so hiring engineers who know it is easier
Watch out for- Pricing is quote based through CSI and its resellers, with historical licence costs in the thousands, building focus is a real limit: odd geometry and non building structures strain it, the interface assumes training
- This is not software you hand to a novice, output quality depends entirely on modelling judgement, as with every tool here
Starting priceSee website
Free planNo
SAP2000 is the answer when the structure is not a building. Its modelling freedom, any geometry, any support condition, any load that moves, made it the default for bridges and special structures over four decades, and its analysis depth remains the benchmark rivals measure against.
Firms with mixed portfolios often keep both CSI tools: ETABS for the towers, SAP2000 for everything unusual. That dual licence cost is the honest price of breadth, and the reason single product firms below compete on focus.
What we like- The general purpose sibling: bridges, stadiums, tanks, towers and industrial structures with geometry ETABS would resist, a mature finite element engine with moving load, staged construction and nonlinear tools, bridge design features and vehicle load patterns built in, the same CSI ecosystem, so skills and licences transfer within a firm
Watch out for- Quote based CSI pricing, as with ETABS, general purpose means more modelling decisions fall on you
- Nothing is assumed, buildings work is slower here than in ETABS, which is why firms license both, documentation assumes an experienced analyst
#3STAAD.Pro
Best for: General structural analysis4.4/5 on
G2 (75 reviews, checked Oct 2026)
Visit bentley.com
Starting price$3,995 per year (reported)
Free planNo
STAAD.Pro is structural engineering's common denominator. A plant structure in Texas, a substation in India and a warehouse frame in the Gulf can all be designed in it, to their local codes, by engineers who learned it on another continent. That universality is its moat.
For a US building firm it is rarely the most productive choice; ETABS and RAM exist precisely for that work. For general practice with varied structures and codes, STAAD.Pro's coverage and the reported 3,995 dollar annual figure make it the safe institutional buy.
What we like- The generalist standard in many markets, especially infrastructure and industrial work, with guide pricing around 3,995 dollars per year, design code coverage spanning US, European, Indian and many other national codes in one product, part of Bentley's ecosystem, connecting to its civil and plant tools, a huge installed base, so models, staff and reviewers who know it are everywhere
Watch out for- The interface and workflow feel older than the Trimble and cloud rivals, breadth means building specific production is less slick than ETABS or RAM, Bentley licensing and product packaging change often enough to need checking each renewal, reported pricing varies by region and bundle
Starting price$1,970 per year (reported)
Free planNo
RISA-3D is the firm down the road's software: capable across the ordinary range of practice, priced for a small business, and productive without a specialist administrator. Its reports deserve their reputation; a calculation package a plan checker can actually follow is worth money at permit time.
Its limits are the mirror of its virtues. RISA aims at the centre of US practice. Firms chasing towers, bridges or international codes will add or switch to the specialists, and many keep RISA for the everyday work even then.
What we like- The favourite general tool of US small and mid size firms: buildings, tanks, culverts and odd one off structures in one approachable program, comparison listings put licensing near 1,970 dollars per year, clear reporting with graphical and numerical results that reviewers and plan checkers can follow, a family around it, floor systems, foundations, connections, that grows with the firm
Watch out for- US code centric
- International code depth trails STAAD.Pro, very tall or highly nonlinear work belongs in ETABS or SAP2000, pricing reported from listings rather than a public price page, so confirm the current subscription figure, cloud collaboration is limited compared with SkyCiv and Tekla
#5Tekla Structural Designer
Best for: Integrated analysis and design4.3/5 on
G2 (12 reviews, checked Oct 2026)
Visit tekla.com
Starting priceSee website
Free planNo
Tekla Structural Designer sells the joined up building: model once, analyse, design the members, and hand the same model toward detailing. For steel framed commercial buildings that flow removes the re entry errors that plague tool chains.
It competes most directly with RAM for the building production role, and the choice usually follows the firm's detailing side: Tekla shops take Structural Designer, Bentley shops take RAM. Both are defensible; an orphaned analysis tool nobody downstream uses is not.
What we like- Analysis and member design in a single model based process, aimed at delivering a designed building, not only an analysed one, strong in steel and concrete buildings, with automated design that sizes members as you model, connects naturally to Tekla Structures for detailing and fabrication, the analysis to steelwork chain is its home turf, part of Trimble, with the stability and support that implies
Watch out for- Pricing is quote based through Trimble and resellers, the single model approach asks you to adopt its workflow, not visit it occasionally, non building structures are not its purpose, US small firm pricing is less transparent than RISA's or SkyCiv's
#6RAM Structural System
Best for: Concrete and steel building design4.0/5 on
G2 (13 reviews, checked Oct 2026)
Visit bentley.com
Starting priceSee website
Free planNo
RAM is the quiet incumbent of US building design offices: less famous than ETABS, deeply embedded in the firms that produce ordinary commercial buildings at volume. Its gravity design speed on repetitive floors is the kind of productivity that never makes a brochure and always makes a deadline.
Price it as a system, not a product: the modules a real office needs, and the training to template them, are the purchase. Bentley's packaging changes are the recurring complaint; pin the configuration and its renewal terms in the quote.
What we like- The production building tool in Bentley's line: gravity design of steel and concrete frames, floor systems and foundations in a workflow tuned for US commercial buildings, RAM Concept covers the concrete floor and mat work its users need daily, long standing in US building firms, with staff and templates everywhere, integrates with Bentley's wider infrastructure platform
Watch out for- Quote and subscription pricing through Bentley, not published in our sources, building focused
- General structures belong in STAAD.Pro, the product family has several modules, and the full stack cost needs assembling carefully, less present outside North American building practice
Starting priceSee website
Free planNo
Robot's case is the model you already have. An Autodesk firm designing in Revit can push geometry into Robot, analyse, and return member sizes, and for many projects that loop is the whole argument. Its code library, particularly for Eurocode work, is genuinely broad.
Evaluate it with your eyes open about its place in Autodesk's portfolio, and test the round trip on a real project model before standardising. When the link works on your typologies, Robot is nearly free at the margin for AEC Collection subscribers.
What we like- The analysis partner to Revit: models move between the BIM environment and analysis with less re building than cross vendor routes, broad code coverage with a strong European following, finite element tools for shells and complex geometry beyond simple frames, included within Autodesk's AEC Collection licencing for subscribing firms, so many already own it
Watch out for- Sold inside Autodesk's collection and subscription structure
- Standalone pricing needs checking on its site, development pace and product attention have drawn questions in the user community for years, a point to raise in evaluation, US building production firms more often standardise on ETABS or RAM, the Revit link still needs an engineer checking what transferred
#8SkyCiv
Best for: Cloud analysis for small teams4.6/5 on
G2 (15 reviews, checked Oct 2026)
Visit skyciv.com
Starting priceFrom $79 per month (reported)
Free planNo
SkyCiv is the insurgent: it took the analysis engine out of the installed program and put it in a browser tab, at a subscription a sole practitioner can expense without a committee. For low and mid rise work, member design and independent checks, its capability surprises engineers raised on five figure licences.
The professional questions are fair ones: model size ceilings, uptime, and the permanence of your calculation archive. For a growing number of small firms the answers suffice, and SkyCiv's published pricing alone earns it a place in every shortlist conversation.
What we like- Real structural analysis entirely in the browser: no installation, models accessible anywhere, with linear, buckling, frequency and response spectrum analysis, integrated design checks across AISC, Eurocode, Australian, Canadian and other codes, published subscription pricing, with listings from 79 dollars per user per month, though some guides cite 109 dollars, an API and integrations that suit small, distributed teams, a fast start for students, sole practitioners and checking work
Watch out for- Reported starting prices differ between sources, so confirm the current plan table, cloud only means your practice depends on connectivity and a vendor's servers, very large or highly specialised models still belong in the desktop majors, per user subscription pricing grows with the team like any SaaS
How we chose
We compared structural analysis and design tools in professional use in October 2026, spanning building specialists, general analysis standards and the cloud challenger. Pricing is the weak point of this market: most vendors sell by quote through resellers, and fields say See website wherever no reliable figure exists; the published numbers used are labelled reported and come from comparison listings and buying guides. Code coverage, modelling scope and ecosystem fit were weighed over feature counts. We are not engineers and did not run calculations for this guide; nothing here is engineering advice.
What the software does not do
It does not know your building. Every tool here will cheerfully analyse a model with a missing support, a wrong load path or a unit error, and return beautifully formatted nonsense. The profession's defence is checking: hand calculations on key members, a second model or method on critical results, and an engineer who expects the software to be wrong until proven otherwise.
It does not interpret the code. Design codes contain judgement clauses, exceptions and local amendments no program applies for you. The software checks the clauses it implements; knowing which clauses govern your structure, and what your jurisdiction expects, is licensed practice, not a settings page.
It does not stamp anything. Drawings and calculations carry the seal of a licensed professional engineer who takes responsibility for them. If a project needs a stamp, and most construction does, the software decision is secondary to the staffing one, which is why firms buy the tools their engineers are trained and insured to use.
Buy for your typology, then train like it matters. ETABS depth is wasted on culvert work; SkyCiv's agility does not design a tower core. Match the tool to the structures that pay your fees, then invest in templates and training, because in this category the licence is the smaller half of the cost.
Frequently asked questions
How much does structural design software cost?
Published figures: SkyCiv from a reported 79 dollars per user per month, RISA-3D around 1,970 dollars per year, STAAD.Pro around 3,995 dollars per year in buying guides. ETABS, SAP2000, Tekla Structural Designer and RAM are quote based through resellers, typically multi thousand dollar annual commitments per seat once configured.
What is the difference between ETABS and SAP2000?
Both are CSI products. ETABS is specialised for buildings, with storeys, floors and wall objects modelled the way buildings are designed. SAP2000 is general purpose, for bridges, tanks, towers and any geometry. Building firms use ETABS; special structures go to SAP2000; mixed firms often hold both.
Can a non engineer use this software for a house project?
You can run it; you cannot stamp with it. Most construction needs calculations signed by a licensed engineer, and insurers, lenders and permit offices rely on that seal. Homeowners and builders hire the engineer, whose software choice comes with them.
Which tool is best for a small firm starting out?
SkyCiv for the lowest commitment and genuine capability, or RISA-3D for the traditional US general practice toolset at a reported 1,970 dollars per year. Both cover the ordinary range of small firm work; graduate to the specialists when your projects do.
Does BIM integration matter?
If your architects and detailers work in Revit or Tekla, yes: Robot and Tekla Structural Designer exist to keep the analysis model and the project model the same object. Every manual rebuild between tools is an error opportunity and an unbilled hour.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.
SAP2000
RISA-3D
Autodesk Robot Structural Analysis