Structural engineering in the cloud
Structural engineering in the cloudAnalysis that shows its work.
Fifteen tools for sections, steel, concrete, frames, footings, and wind — every result cited to the code reference that produced it.
14-day free trial, no card required — pick your plan below
- ACI 318-19 / -14
- ACI 440.11-22
- AISC 360-16
- AISC 370
- AISC Design Guide 9
- ASCE 7-10 / -16 / -22
Fiber engine · live replay
308 fibers · 8 bars · f′c 4 ksi · fy 60 ksi
φ 2.7e-4 · M 516 k·ft · c 6.5 in
Not a mockup — precomputed by the production fiber engine for an 18×24 in column, replayed here.
Real output, replayed live
Everything below was computed by the same server-side engines the tools run — nothing is illustrated, mocked, or approximated.
Biaxial P-M-M, per ACI 318-19 / 318-14
Open P-M-M →Interaction diagram · θ = 0°
nominal + φ-factored
Biaxial capacity · φPn = 450 kip
Mx–My plane
Steel members, every check cited — AISC 360-16
Open W-Shape Design →AISC 360-16 design check · live replay
Pu 110 kip · Mux 165 k·ft · Vu 42 kip · Lb 14 ft · ASTM A992
Compression Ch. E
0.35
Flexure (major) Sect. F2
0.61
Shear Sect. G2.1
0.22
Combined Eq. H1-1a
0.90
every value cites its equation in the calc package
Mn vs. unbraced length
Sect. F2 · inelastic LTB at Lb = 14 ft
Fifteen tools, one subscription
Steel design
Concrete design
Structural analysis
Section analysis
One subscription, sized to your practice
Three tiers, from member design to the full analysis suite.
Basic
$49/mo
billed monthly
- ✓Stainless Steel W-Shape Design (AISC 370)
- ✓Isolated Spread Footing Design (ACI 318)
- ✓Structural Steel W-Shape Design (AISC 360)
- ✓Section Properties
- ✓Reinforced Concrete Beam Design (ACI 318)
- ✓Structural Steel HSS Design (AISC 360)
- ✓Unlimited saved projects, synced to your account
- ✓Cancel anytime
Pro
$89/mo
billed monthly
- ✓Everything in Basic, plus:
- ✓P-M-M Interaction (ACI 318)
- ✓Eccentric Weld Group Analysis (AISC 360)
- ✓Reinforced Concrete Column Design (ACI 318)
- ✓Cancel anytime
Ultimate
$149/mo
billed monthly
- ✓Everything in Pro, plus:
- ✓Moment-Curvature Analysis
- ✓2.5D Topology Optimization
- ✓P-M-M Interaction (ACI 440 GFRP)
- ✓Frame Analysis 3D
- ✓Components & Cladding Wind Loads (ASCE 7)
- ✓Strut-and-Tie Design (ACI 318)
- ✓API access
- ✓Cancel anytime
Subscriptions renew automatically at your plan's price — Basic $49, Pro $89 or Ultimate $149 per month — plus any applicable tax, until you cancel. Cancel anytime from the Billing page; you keep access until the end of the period you've paid for, and you won't be charged again. Payments are non-refundable except as the Terms of Service provide. See the Terms of Service.
Compare plans in detail
See exactly what's included in each plan.
| Feature | Basic$49/mo | Pro$89/mo | Ultimate$149/mo |
|---|---|---|---|
| Tools | |||
| Stainless Steel W-Shape Design (AISC 370) | ✓ | ✓ | ✓ |
| Structural Steel W-Shape Design (AISC 360) | ✓ | ✓ | ✓ |
| Structural Steel HSS Design (AISC 360) | ✓ | ✓ | ✓ |
| Isolated Spread Footing Design (ACI 318) | ✓ | ✓ | ✓ |
| Reinforced Concrete Beam Design (ACI 318) | ✓ | ✓ | ✓ |
| Section Properties | ✓ | ✓ | ✓ |
| P-M-M Interaction (ACI 318) | — | ✓ | ✓ |
| Eccentric Weld Group Analysis (AISC 360) | — | ✓ | ✓ |
| Reinforced Concrete Column Design (ACI 318) | — | ✓ | ✓ |
| Moment-Curvature Analysis | — | — | ✓ |
| P-M-M Interaction (ACI 440 GFRP) | — | — | ✓ |
| 2.5D Topology Optimization | — | — | ✓ |
| Frame Analysis 3D | — | — | ✓ |
| Components & Cladding Wind Loads (ASCE 7) | — | — | ✓ |
| Strut-and-Tie Design (ACI 318) | — | — | ✓ |
| Advanced | |||
| API access | — | — | ✓ |
Run your next check in STRENC
Open a tool, build a section, and have a code-cited result on screen in minutes.
14-day free trial, no card required — pick your plan above