Quick-turn PCB lead time depends on when the quoted clock starts, which production steps the price includes, and what happens if the file set or material changes. Ask the fabricator to state the first counted event, the unit (calendar or business days), the planned ship date, and the assumptions behind the route. Sending an inquiry is not automatically the same as releasing a complete, approved job.

Use this sequence to check where a date comes from. For the files needed to submit a quote, see the bare-board RFQ checklist. For changing a verified engineering sample into a low-volume release, see the prototype-to-low-volume release gates.

On this page: Name the start event · Follow the release sequence · Separate production from delivery · Request a date you can compare

Name the event that starts the quoted clock

A quick-turn PCB lead time is only comparable when two quotes count from the same point. One offer may count from order placement, while another starts after engineering approval, material confirmation, or receipt of payment. The quote should name its start event and the event it calls completion, such as shipment or delivery to a stated location.

Settle these terms in writing:

• Whether the duration uses calendar days or business days, including how weekends and holidays are treated.
• What must be complete before the clock starts, such as payment, approved files, stackup and finish selection.
• What the endpoint means: production complete, goods packed, carrier pickup, or arrival at destination.

Altium's fabrication-document package guide explains why artwork, drill data, material, stackup, and fabrication notes belong to one coordinated release. The date request should refer to that same approved package and revision.

Material storage racks in the PCB production area.

Follow the release sequence to find the schedule dependencies

Walk the quote in order. The vertical timeline below separates customer decisions from factory operations, so an open design question is visible before it moves a promised ship date.

1. Engineering package received. The fabrication team checks revision, layer count, outline, drill files, copper, finish, board thickness, and required reports. The quoted production clock starts here only if the supplier defines it that way.
2. DFM questions resolved. Hole spans, impedance notes, edge details, material substitutions, or incomplete outputs may need an answer. Ask who holds the job while that answer is pending and what date starts again after approval.
3. Material and construction confirmed. Ask whether the exact laminate, copper, thickness, and bonding construction have been checked for the requested order. A product family name does not establish that the stated grade is allocated or ready.
4. Fabrication and inspection completed. The number of layers, special holes, repeated lamination, surface finish, and requested inspections affect the route. Have the quote identify included checks and any customer review that must happen before dispatch.
5. Dispatch arranged. Record packing completion, carrier handover, destination, and whether transit is included in the quoted duration. Production-complete and delivered are different milestones.

At each handoff, request the status owner, the input needed to proceed, and the date that will be reported next. An approved DFM correction or a stock decision can move the plan. Mark the date impact against that dependency instead of changing the original milestone silently.

Laser-drilling equipment on the PCB production floor.

Separate factory time, waiting time, and shipping time

A factory route may include preparation, imaging, lamination, drilling, hole metallization, outer-layer processing, finish, inspection, and packing. Not every board uses every step, and some production activities can run in parallel. A short fabrication duration therefore cannot be estimated just by counting steps or using the calendar time from an unrelated board.

Ask the supplier to identify what the quoted number includes. Is it queue time before the first operation, active processing, final inspection, and packing? Does a material or DFM hold pause the clock? Are rework, customer review, and carrier transit included? Those details explain why two dates with the same number of days can represent different services.

If a revision changes copper, outline, finish, drill span, or material after release, ask whether it creates a new revision review or restarts production planning. Keep a copy of the approved file list and the quote revision beside the date commitment. Altium's design-release documentation describes retaining a validated, revision-controlled set of fabrication outputs. That record helps both sides identify which package the current dates refer to.

Vacuum packaging of finished PCB panels.

Request a date with comparable assumptions

For an actionable quick-turn request, attach the released Gerber or ODB++ data, NC drill files, stackup, fabrication drawing, board quantity, panelization information, material and finish choices, and requested inspection documents. Identify the board revision and whether the order contains more than one design. The prototype and low-volume service page gives the purchasing context for this kind of bare-board request.

Ask the sales or engineering contact to confirm:

• The event that starts the quoted production time and whether the count uses business or calendar days.
• The specific date for DFM closure, material confirmation, fabrication completion, and dispatch.
• Which manufacturing, test, packing, and freight steps are inside or outside the quoted duration.
• Which unanswered item or approved revision change would move the plan, and who will notify you.

This lets procurement compare offers against the same released design and delivery endpoint. To request a board-specific manufacturing review, send the files through KnownPCB's contact page.