Plan your assembly budget
PCB Assembly Cost
Understand the cost of your complete build—from bare boards and components to assembly, testing and delivery.
GreatPCB reviews your files, batch quantities and acceptance requirements to prepare a project-specific quotation.
PCB fabrication · Component sourcing · SMT/THT · Programming & testing
A quotation for your actual buildCompare the required deliverable, manufacturing scope and batch size.
Complete scopeBoards, materials and assembly
Clear cost driversQuantity, process and testing
Flexible sourcingTurnkey or supplied materials
Quote from filesEngineering and BOM review
Define the deliverable
What Does the Price Include?
“PCB assembly cost” can describe two different amounts:
Assembly service cost: setup and the work required to populate and solder the board, with the inspection or other operations included in that quotation.
Complete PCBA order cost: bare PCBs, purchased components, assembly, tooling, specified tests and finishing, plus the delivery charges included in the order.
An assembly-only price and a turnkey price cover different work. Confirm whether the estimate includes bare boards, purchased components, inspection, testing and delivery before using it as your project budget.
There is no single per-board price that describes every project. A board populated with common passive parts has different purchasing and process requirements from a board containing expensive processors, hidden solder joints and a long functional test. A meaningful budget needs the actual design and bill of materials.
Understand the quotation
PCB Assembly Cost Breakdown
Ask for the quotation to distinguish preparation, recurring production work and additional purchases. Suppliers may bundle some of these items, so check what each line covers before adding them together.
| Cost item | What can be included | What to check |
|---|---|---|
| Bare PCB | Materials, stackup, fabrication, finish and board testing | Board specification and whether PCB fabrication is included |
| Components | Parts required for the populated BOM | Exact part numbers, quoted quantities, availability and permitted alternatives |
| Engineering and setup | File preparation, assembly programs and production setup | Which charges apply to this order and which may recur |
| Stencils and fixtures | Paste-printing stencils, board supports or test tooling | Quantity, ownership, storage and reuse conditions |
| Assembly operations | SMT placement, reflow, insertion and soldering | Populated sides, manual work and special operations |
| Inspection and testing | Specified inspection, electrical tests and functional checks | Coverage, acceptance limits and records |
| Programming and finishing | Firmware loading, coating, labels or mechanical integration | Setup costs and processing time per unit |
| Packaging and delivery | Protective packing and shipment | Destination, shipment method and excluded charges |
An engineering fee may apply to each released order even when some tooling can be reused. Conversely, a fixture-development charge may be spread across several planned batches. Ask for the charging basis rather than assuming that every item labeled “setup” is a lifetime one-time expense.
Know the cost drivers
What Affects Assembly Cost?
Quantity and Product Mix
Small-batch PCB assembly spreads setup work across fewer units. As quantities increase, that portion of the unit price can fall, while PCB and component purchasing may qualify for different price breaks.
Quantity alone does not define the savings. Several variants can require separate material preparation, programs, instructions and checks. Request quantities by variant, not just one combined board count. For repeat production, compare the first order with the expected repeat-order price.
Packages and Assembly Steps
Fine-pitch devices, small packages and hidden joints can change placement, inspection and rework requirements. Double-sided SMT adds processing steps; mixed assembly adds the operations needed for leaded parts.
SMT automation can be efficient, but converting every through-hole component to SMT is not automatically a better product or a cheaper build. Consider mechanical loads, thermal requirements, available packages and the process needed for the actual quantity.
Board shape and panel design also affect handling and production. A panel that helps placement but makes separation difficult can shift costs to a later operation. Review both assembly and depanelization requirements. See GreatPCB’s panel requirements for assembly.
Placements & Parts
These are different counting units:
A placement is a component mounted on the board.
A solder joint is an individual connection being soldered.
A unique part is a distinct part identity that needs to be sourced and prepared for the build.
A two-terminal resistor represents one placement but normally two solder joints. An eight-lead IC is also one placement, with eight lead connections. Ten identical resistors create ten placements while using one component type.
Suppliers may price by joints, placements, operations, time or a combination. Confirm the definition, treatment of exposed pads and through-hole parts, and any minimum charges. A low per-joint rate does not describe setup, parts, testing or the final unit price.
Also check what a supplier means by a billable point. It may represent a component, a pin or a supplier-defined equivalent, rather than one physical solder joint. Two quotations using “price per point” can therefore use different quantities as well as different rates. Ask for both the counting rule and the total chargeable count.
Plan the materials
Component and Material Costs
The BOM establishes which parts are required; purchasing determines how many parts must be bought and at what price. Those quantities may differ from the number fitted to the finished boards.
Check minimum purchasing quantities, reel or tray packaging, stock, supplier lead time and any extra material needed for setup. An inexpensive component may still create a noticeable upfront purchase if only a larger package quantity is available.
Keep consumed material cost separate from excess inventory. If leftover parts belong to your company and can be reused, they are not the same as material consumed by this batch. They still require cash and a plan for storage or return. Confirm ownership, usable remaining quantities and disposition before approving procurement.
Part consolidation can simplify sourcing and preparation when the design allows it. Approved alternatives can also help, but package compatibility is only one check: electrical characteristics, temperature ratings, firmware behavior and qualification requirements may matter. Your design team should approve substitutions before they enter the purchasing plan.
Provide exact manufacturer part numbers and clearly identify DNP positions. A BOM with unresolved specifications produces a less dependable estimate, even if the spreadsheet looks complete.
State purchasing-channel restrictions and documentation requirements at the enquiry stage. Quotes based on different sourcing conditions may not be equivalent even when they list the same part numbers. Ask the supplier to identify those assumptions before comparing the material totals.
Define acceptance
Testing and Programming Costs
Inspection and functional testing answer different questions. AOI checks visible assembly features; it does not power the board to verify its operation. A quotation that includes AOI therefore does not necessarily include the test your product needs.
For cost planning, distinguish:
A short power-on check and a test that exercises communications, outputs and operation under load have different time and equipment requirements. Specify the functions and pass/fail limits so the supplier can price the work.
Fixture-based testing may justify its preparation cost over repeat batches. A different test approach may suit an early build, but its coverage and cycle time must still meet the project’s requirements. Use GreatPCB’s assembly testing overview to discuss the available methods, then confirm the quoted scope for your board.
Budget your build
How to Calculate Cost Per Board
For budgeting, use a model that keeps each charge in one place:
Order cost = batch setup and tooling + quantity × recurring cost per board + additional procurement commitment + delivery charges.
The recurring cost can include the bare board, the components consumed in one assembly, assembly work and per-unit testing or finishing. Additional procurement commitment covers purchases beyond that consumed quantity, when charged separately.
Budgeted cost per delivered board = order cost ÷ delivered quantity.
This calculation measures the cash commitment assigned to that shipment. If you also need a recurring production-cost figure, separate reusable tooling and retained component inventory. Include each cost once: do not add a stencil fee or excess-material allowance again if it is already inside another quoted line.
Worked Example
The following figures are invented solely to demonstrate the calculation. They are not GreatPCB prices, a supplier quotation or an industry price range. Delivery is represented by a freight allowance; duties and taxes are excluded.
| Budget item | Assumed amount |
|---|---|
| Setup and tooling for the batch | $300 |
| Bare PCB per delivered board | $3 |
| Components consumed per board | $18 |
| Assembly work per board | $4 |
| Per-board testing | $2 |
| Separately purchased excess components | $80 |
| Freight allowance | $90 |
For 50 delivered boards, the recurring amount is $27 per board:
$300 + (50 × $27) + $80 + $90 = $1,820, or $36.40 per delivered board.
For comparison, holding every assumed charge constant and changing only the quantity to 200 boards gives:
$300 + (200 × $27) + $80 + $90 = $5,870, or $29.35 per delivered board.
This illustrates cost allocation, not a forecast. A real larger order can change component prices, tooling needs, procurement quantities and shipping charges. It also requires more total cash despite the lower unit figure.
Choose your supply model
Sourcing Options
With turnkey assembly, the supplier quotation can include board fabrication, component procurement and assembly. With consigned assembly, you supply the materials, so those purchases may sit outside the assembly quotation. Partial turnkey divides responsibility between the two parties.
Compare the whole project using the same quantity, materials and acceptance requirements. Add your own PCB and component purchases, inbound shipments and necessary preparation to a consigned quote. For customer-owned stock, record its consumed value separately from new cash purchases if your budgeting process distinguishes them.
Existing qualified inventory can make consigned assembly practical. Turnkey sourcing can reduce purchasing handoffs. Neither model is automatically cheaper: packaging, shortages, purchasing terms and the work your team must perform determine the result.
Compare the same scope
How to Compare Quotes
Give suppliers the same released files and requirements. Then resolve these differences before ranking their prices:
| Check | Question to resolve |
|---|---|
| Quantity | Does the price refer to finished units, bare boards or panels? |
| BOM | Are the same exact parts and populated variants quoted? |
| Materials | Are customer-supplied items excluded consistently? |
| Tooling | Are setup, stencils and fixtures included or separate? |
| Acceptance | Do the workmanship standard, required class, inspection and test coverage match? |
| Finished deliverable | Are programming, coating, labels and packaging matched? |
| Delivery | Does the price use the same destination and shipment basis? |
| Purchasing conditions | Are quote validity, stock assumptions and leftover materials clear? |
Check whether the quote is provisional or based on engineering review and confirmed sourcing. Identify unresolved items explicitly instead of treating a blank line as included.
Expediting is another scope difference. An assembly rush does not necessarily shorten procurement for unavailable parts. Ask which stage controls the schedule and what the quoted expedite charge changes.
Make practical savings
How to Reduce PCB Assembly Cost
Resolve the BOM before purchasing. Remove duplicate or ambiguous entries, align quantities with reference designators, and approve alternatives where appropriate. This improves the reliability of the purchasing plan.
Review assembly requirements while changes are still possible. Check footprints, polarity, clearance, board handling and test access. Correcting a layout before fabrication is a different expense from investigating and rebuilding an assembled batch.
Reduce unnecessary process steps. Evaluate whether a second populated side, hand-installed part or special finish is required. Compare the complete effects of a proposed change, including PCB size and product performance.
Use quantities that match realistic demand. A larger batch may spread preparation costs, but unused finished boards can tie up more cash than the unit-price saving justifies. Ask for price breaks at quantities you could reasonably consume.
Plan reusable tooling and stable repeat builds. Confirm which stencils, fixtures and instructions remain valid for the next revision. Reuse depends on compatibility and the supplier’s storage arrangements, not simply on having ordered before.
Define testing early. Provide the procedure, firmware and interfaces during quoting. Avoid paying for a fixture redesign because essential connections or acceptance limits were omitted.
Prepare your enquiry
RFQ Checklist
To request a useful PCB assembly cost estimate, provide:
Keep the file package on one released revision. If information is incomplete, identify what remains open so the estimate can distinguish confirmed costs from assumptions.
Before you order
PCB Assembly Cost FAQs
Send your project
Request a Quote
GreatPCB’s PCB assembly services connect fabrication, component sourcing, SMT/THT assembly, programming and testing. Share your files, batch quantities and required deliverable so our team can review the manufacturing scope and prepare a quotation.
Email your RFQ and attachments to sales@greatpcb.com, or contact GreatPCB.
Attach your Gerber files, BOM and assembly requirements to the email before sending.