Why door jobs generate so many changes
Division 08 sits at the intersection of architecture, security, life safety and whoever actually occupies the building, and all of them change their minds. A door job can run for months between bid and installation, and over that time the openings rarely stay exactly as first drawn.
The causes are familiar to anyone who has run this work.
- Spec revisions: the architect updates drawings or hardware sets after the bid
- Product substitutions: a specified item is swapped for an approved equal
- Discontinued items: a manufacturer drops a product mid-job and it must be replaced
- Field conditions: an opening is not the size, hand or wall type the drawings showed
- Value engineering: the team cuts cost by changing products or scope
- Keying changes: the owner revises how the building is keyed, late in the job
What a change actually costs
A change order is rarely just a price difference on one line. Changing a single opening can ripple: a different door may need a different frame prep, a different hardware set, a new cut sheet on the submittal and a fresh purchase order to a different manufacturer with its own lead time.
The schedule cost is often larger than the material cost. If a changed item is long-lead, the re-order can push an opening past the date the rest of the trade needs it, and the labor to handle the paperwork and re-coordinate is real even when the dollar value of the change looks small.
Document and price changes promptly
The single most important discipline with change orders is handling them when they happen, not at the end of the job. A change that is agreed verbally in the field and written up weeks later is a change you may not get paid for, and one you cannot reliably trace.
Good practice is to capture each change as it arises: what changed, why, which opening it affects, what it costs and who authorized it. Price it against current data and get it approved before the re-order goes out. The paperwork is tedious, but it is what turns a change from a loss into a billable line.
Keep the estimate, order and accounting in step
The thing that goes wrong on changes is that the different records drift apart. The estimate still shows the original opening, the order shows the first product, the accounting shows the original contract value, and the change lives only in someone's email. When that happens, nobody can say with confidence what was furnished, what it cost or what should be billed.
The goal is traceability: a change should be followable from the revised opening, to the re-order that fulfills it, to the invoice that bills it. Keeping those in step by hand across spreadsheets and separate systems is where the thread gets lost. eMullion keeps releases, orders and change orders on the same job data, so a change updates the opening, the purchase order and the cost record together rather than in three disconnected places.
A workable change-order routine
You do not need a heavy process, you need a consistent one. The shops that manage changes well tend to follow the same few steps every time.
- Log the change against the specific opening as soon as it is known
- Price it from current manufacturer data, not the original estimate
- Get written authorization before re-ordering
- Issue the revised purchase order and update the lead-time expectation
- Reflect the change in the contract value so the invoice matches
- Keep the original and revised states both visible for the audit trail







