Pricing
One engineer. One price. Everything in it.
Every plan is the whole program — every member type, every code edition, the 3D model, and the printed calculation package. There is no feature ladder to climb.
StruxDraft v1.0 ships September 21, 2026
Monthly
The whole program, billed month to month. Cancel whenever you like.
$79per month
Billed monthly in US dollars.
- Every member type and code edition
- One licence runs on two machines
- Updates included while subscribed
- Cancel any time — access runs to the end of the paid period
Annual
The same program, paid once a year. Two months cheaper than monthly.
$790per year
Works out to $65.83 a month — you save $158.
- Everything in Monthly
- Two months free against the monthly price
- One renewal to think about instead of twelve
- Cancel any time — access runs to the end of the paid year
Founders Lifetime
Pay once. Keep StruxDraft for as long as it exists, including everything we build next.
$2,000one time
No renewal, ever. Less than 26 months of the monthly plan.
20 of 20 seats remaining
- Everything in Annual, permanently
- Every future release at no additional cost
- One licence runs on two machines
- Direct line to the engineers building it
Prices are in US dollars and exclude any applicable sales tax. Payment is handled by Stripe — we never see your card details.
What every plan includes
There is one edition of StruxDraft. The plans differ in how you pay for it, not in what it does.
Every member type
Beams, joists, floor and roof systems, columns, walls, foundation walls, spot and continuous footings, retaining walls, and base plates — in wood, steel, concrete, and masonry.
Every code edition
NDS, AISC 360, ACI 318, TMS 402, and ASCE 7, selectable per project. Older editions ship alongside current ones for existing-building work.
The full calculation package
Cover sheet, design criteria, load-path narrative, and a calc sheet for every member with its equations and code references written out.
Three connected views
Plan sheets in StruxDraft, the single-member workbench in StruxCheck, and the live 3D model in Strux4D — one project file behind all three.
Two machines per licence
Activate your desk machine and your laptop on the same licence. Once activated, StruxDraft runs offline for thirty days between checks.
Updates while you are current
New releases arrive through the built-in updater for as long as your plan is active — permanently, on a Founders licence.
Free to use. Upgrade when you need to.
Download StruxDraft and it opens in Trial Mode — free, no account, no card, and no time limit. It is not a countdown and it does not lapse: keep using it as long as it fits the work, and upgrade the day a project outgrows it. Draw a small real building over a real plan set and watch every member check itself. Trial Mode is capped in size, not in honesty: the engine, the code editions, and the checks are the ones you would be buying.
Windows 10 or 11, 64-bit · v0.3.19 · roughly 14 MB
What Trial Mode gives you
- Up to 5 beams, 5 joists, 5 columns, and 10 walls per project
- Foundation walls, footings, and base plates in smaller counts
- Every design check, on the same engine, with code references
- Import and scale the architect's PDF, and draw over it
- The calculation report on screen
What a licence unlocks
- Unlimited members of every type
- PDF and DXF export, and the printed calc package
- Every schedule — beam, joist, column, footing, hold-down
- Concrete design, lateral design, and retaining walls
- Floor and roof systems, and the load database
Questions people ask before buying
When does v1.0 arrive?
September 21, 2026. If you buy before then, your licence activates immediately against the current build and updates itself to v1.0 the day it ships.
What happens to a Founders licence if the price changes?
Nothing. A Founders licence is bought once and never renews, whatever the list price does afterwards. There are twenty of them and there will not be more.
Can I put it on my desk machine and my laptop?
Yes. Every licence activates two machines. You can move an activation between machines from your account dashboard.
Does it need to be online?
Only to sign in and activate. After that StruxDraft runs offline for thirty days at a time before it re-checks the licence.
Do you seal or stamp the calculations?
No. StruxDraft shows its work — every equation, input, and code section — so a licensed engineer can verify it. The seal, and the responsibility, stay with you.
What if I cancel?
Your access runs to the end of the period you have paid for, and your project files stay yours and readable. Nothing is held hostage.