When a revised drawing set comes in on a job you already bid, the usual next step is slow: open the new set next to the old one and cross-reference them sheet by sheet, member by member, to find what changed. Miss a size change or a deleted beam and your re-bid is wrong.
LIFT compares the two sets for you. Upload a revision and LIFT marks every member as changed, added, or removed, so you can re-bid or produce a change order without throwing out the takeoff you already finished.
This guide walks through how it works.
Once you have completed a takeoff on the original drawing set, you process the revised set the same way you would any drawing set. LIFT analyzes the new drawings, then compares the results against your existing takeoff instead of starting from a blank slate.
The work you already did stays intact. You are reacting to what changed, not redoing the whole job.
Open the Quantities Panel and you will see a status on every member, based on LIFT's comparison of the two sets:
Color-coding the members gives you a fast visual read on where the changes are concentrated across the drawing.
For any member marked Changed, hover over the changed icon and LIFT gives you a summary of what moved. That might be the member size, the stud count, the camber, a label, or a combination.
So instead of "something on this beam is different," you get "the size changed, the studs changed, and the camber was removed." You know what to verify before it affects your number.
Use LIFT's overlay to check the comparison visually. You can confirm that a member flagged as added really is new, or that a change LIFT caught matches what the architect actually revised. It is a quick way to trust the results before you build them into a re-bid.
Revision management does not stop once LIFT finishes its comparison. Any changes you make manually from there are tracked too, and summarized in the Quantities Panel and in the exports available through LIFT.
That gives you a clean record of everything that moved between the original bid and the revision, which is exactly what you need when you are walking a general contractor through a change order.
This 2-minute video covers every step above, with a live demo inside LIFT from our Head of Product, Grayson Ingram.
Questions about processing a revision? Reach out to your Customer Success rep. We are happy to walk through it on one of your own projects.
New to LIFT? Book a demo and we will run a takeoff on one of your past projects.
