The short answer
What this setting controls
Working days run Monday to Friday. The estimate shows the available choices after the board and its specifications have been analysed; it is not a promise that shipping or delivery takes the same number of days.
Treat the option as a production lead-time preference. Confirm dependencies such as engineering queries, file corrections, assembly inputs and domestic delivery separately.
Options in the order form
How the available choices differ
| Choice | Use it for | Engineering note |
|---|---|---|
| Standard working-day option | Normal schedule | Best when engineering review and logistics have reasonable margin. |
| Expedited working-day option | Schedule-critical builds | Availability can change with material, layer count, finish and special processes. |
Compatibility
What can change with this selection
- Available options arrive from the live pricing response and can differ by build.
- A working-day target starts after the order is accepted for production, not necessarily at file upload.
- If the page disables a choice, treat it as a compatibility result and adjust the controlling design decision rather than forcing the value.
Practical recommendation
How to make the decision
- Use the standard option when schedule pressure is moderate.
- Select an expedited choice only when the saving in calendar time is worth the surcharge.
- Allow review and shipping time in the programme plan.
Before release
Check these points before adding the quote to cart
- Confirm the selected value matches the released Gerber, drawing, stack-up, BOM or assembly plan.
- Review any fields that changed automatically after this selection.
- Check the board preview and server-calculated estimate before adding the quote to cart.
- Use the standard option when schedule pressure is moderate.
- Select an expedited choice only when the saving in calendar time is worth the surcharge.
- Allow review and shipping time in the programme plan.
Frequently asked questions
Answers for ordering and design review
Are weekends included?
No. The page expresses the adjustment in working days from Monday to Friday.
Why did the list change after I changed a specification?
Build-time availability and surcharge rules can depend on the material, layer, quantity and special processes.
When should I change PCB fabrication time?
Change it when the released electrical, mechanical, thermal, assembly or quality plan gives a measurable reason. Otherwise keep the compatible default and review the resulting board preview and estimate.
Why is an option disabled?
The current material, geometry, layer count, quantity or another selected process makes that combination unavailable. Change the controlling selection or revise the design package rather than trying to bypass the disabled state.
Can I rely on the online choice as final manufacturing approval?
No. The interface screens known combinations and requests pricing, while final manufacturability remains subject to the released files and technical review.
What should I record outside the order form?
Put controlled requirements in the fabrication drawing, assembly drawing, stack-up, BOM or acceptance plan. Use Special instructions only for a concise pointer to that controlled requirement.
Will changing this update other selections?
It can. The order form re-evaluates compatibility and may replace a now-invalid dependent choice before requesting a fresh server-side estimate. Review every highlighted or automatically changed field.
What if the design requires an option that is not offered?
Do not approximate it with a different label. Recheck the controlling material and geometry, document the actual requirement, and request technical review before placing the order.
Further reading
Standards and technical references
Use the latest applicable revision and your organisation’s controlled requirements when a standard forms part of product acceptance.