Make sure the site is building from the latest drawing.
LatestDrawing.com gives your structural drawings and calculation packs a live, traceable revision history — QR-stamped, shareable, and always current on site.
Free forever on the Free plan. No credit card required.
Revision Tracking
Every structural revision tracked and traceable.
Structural drawings and calculations change as the design develops and site conditions are confirmed. Every issue you upload is versioned automatically — labelled O, A, B, C — with the full revision history always visible, so there's a clear, traceable record of what was designed and when.

QR Code Stamping
Make sure steel goes up against the current drawing.
Stamp a QR code onto any issued structural drawing before it's printed. A steel erector or groundworker on site scans it to instantly confirm whether the drawing in their hand is current or has been superseded — critical when a structural detail has changed since the last print run.

Viewer Access
One register for the architect, contractor, and building control.
Invite everyone who needs your structural drawings as free Viewers. The architect, main contractor, and building control officer always see the latest structural issue — no re-sending calculation packs by email every time a detail is revised.

Collaboration
Work inside the architect's project register.
Join the architect's project as a collaborator and upload your structural drawings and calculation packs directly into the shared register — clearly attributed, fully versioned, sitting alongside the architectural and interior drawings.

Site Visits
Inspection records the whole project can see.
Record every inspection from your phone — purpose, date and time, notes and up to 50 photos of the steel, foundations or temporary works. Publish it with its own SV- reference number and the architect and contractor all see the same record, kept alongside your drawings.
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Documents
Reports and letters, sent for acceptance.
Write inspection reports, appointment letters and fee proposals on your practice letterhead. Send them to anyone on the project, see when they have been read, and record exactly what was accepted.
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Forms
Get the information you need from site.
Send the contractor a Form to confirm as-built dimensions, upload photos of a connection before it is covered up, or confirm a temporary works check. Answers are locked once submitted.
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Everything in one place
Everything you need. Nothing you don't.
Full revision history
Every structural drawing and calculation pack versioned automatically. Nothing deleted when a new issue is released.
QR code stamping
Stamp a QR code onto issued structural drawings so a builder on site can confirm the steel schedule they're holding is current.
Free Viewer access
Invite the architect, main contractor and building control as Viewers of your structural drawings. Viewing is free.
Invite collaborators
Join the architect's project register directly, uploading your own structural drawings alongside theirs, clearly attributed.
Site Changes
A structural detail changes on site — issue it instantly to everyone involved, with a full record of who was notified.
Traceable calc packs
Keep calculation packs and drawings linked by revision, so the design history is traceable from first issue to final as-built.
Site Visits
Record inspections with notes and photos, published to the whole project.
Documents
Send reports and appointment letters on your letterhead for acceptance.
Forms
Ask the contractor for dimensions, photos and checks, locked once submitted.
Never let steel go up against a superseded drawing.
Join structural engineers keeping calculation packs and drawings traceable from first issue to as-built.
Get Started FreeFree forever on the Free plan. No credit card required.