Delegate
Hand off the calc.
Ask in plain language, in the app, by email, or from Claude on your desktop. The agent runs clearspan's tested solvers, the same ones you would use yourself. The model never does its own math.
Same tools you use
AI that shows its work
Clearspan gives AI real calculation tools. Every run is saved as a live calc you can open, check, and edit.
Looking for a beam design? See the contractor experience →
What can I help you with today?
AskReview
Open the live calc.
Every run is saved as a real calculation in your workspace, not a chat transcript. Open it, check the inputs, change a value, rerun it. You stay the engineer of record.
Edit anything, rerun instantly
clearspan
Wood Beam Capacity
#412NDS beam capacity check · 1 caseSaved from chat
Result
PASS
Bending DCR
0.61
Shear DCR
0.34
Deflection
0.93
Section & service conditions
Span
13.5ft
Section
2x6
Species
Douglas Fir-Larch
Grade
No. 1 & Btr
Load cases
| Case | Bending DCR | Shear DCR | Status | ||
|---|---|---|---|---|---|
| D + Lr | 1.25 | 0.61 | 0.34 | 0.93 | Pass |
Privacy
Your projects stay yours.
Project redaction strips client names and project identity before anything reaches the model. The AI sees a beam, not your business.
Identity stays on your side
clearspan
Project settings · AI privacy
Johnson Residence
214 Elm St, Sacramento
Hide this project's identity from AI assistants
AI codename:
drifting-trussCopyagent chatRedacted
Check the roof rafter on drifting-truss and update the calc.
Running the rafter check for drifting-truss now. The saved span is 13'-6" at 16" o.c.
Calculation tools
Built for engineers first.
Every tool works the same for you as it does for the AI. Run calculations and generate reports yourself, with or without the agent.
- Beam analysis.
- Demands, deflections, and reactions with custom load patterns, combinations, and linked loads between beams.
- Wood design.
- NDS wood beam and post checks with clear results. Steel beams and columns are coming.
- Report compiler.
- Bundle calcs into a report package with cover sheets, a live table of contents, and sections.
Client service
Simple tools to improve client service.
Send proposals for e-signature, share a project dashboard, and collect payment when files are released.
- Project dashboard.
- Clients check status, contacts, and shared files without emailing you.
- Deliverables portal.
- A firm-branded portal for downloads. Link it to payment so files release when the invoice is paid.
- Payments.
- Collect payments through clearspan's Stripe integration.
Inbound work
Leads that already did their homework.
Receive residential referrals from the client platform and the Find an Engineer search.
- Self-service intake.
- Contractors and architects start simple beam calcs themselves. Opt in to receive requests with the calculation already started. Submissions are free for clients.
- Free firm listing.
- Every account includes a public directory profile, even on the free tier. It promotes your expertise, not reviews and ratings.
Pricing
Plans for solo engineers.
Start free with the full calculation suite. Step up for the desktop connector, included AI usage, and AI privacy.
Free
Solo engineers — calc tools, compiler & the in-app AI assistant.
Free
Includes:
- Full calculation tools
- Calculation report compiler
- Design & load criteria
- In-app AI assistant (pay-as-you-go usage)
- Not included:Claude desktop (MCP) connector
Pro
Everything in Free, plus the Claude desktop (MCP) connector.
$5
USD per month
Includes:
- Everything in Free
- Claude desktop (MCP) connector
- Not included:1X included AI usage
- Not included:AI privacy tools (project redaction)
Max
Everything in Pro, plus included AI usage & AI privacy.
$25
USD per month
Includes:
- Everything in Pro
- 1X included AI usage
- Discounted additional AI usage (about 17% compared to Pro)
- AI privacy (project identity redaction)
Prices in USD. Billed monthly via Stripe. Extra AI usage may be purchased separately.
FAQ
Common questions from engineers.
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