CAD designers send quotes before starting nearly every project, because clients usually compare several freelancers or shops and need a number to budget against. Clients look at price, turnaround time, software compatibility, and how many revisions are included. A clear quote with a defined scope helps you win work and avoid unpaid changes later.
When to use estimates: Use estimates to provide project quotes and get client approval before starting work. Once approved, convert your estimate to an invoice with one click to collect payment.
Create an invoice for payment collection
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Invoice_1001_Client_2026-10-14.pdf
Naming the exact outputs, such as 3D model, 2D drawings, BOM, STEP, DWG, or PDF, sets expectations and prevents requests for extra formats later.
State whether you are working from sketches, scans, existing models, or field measurements. Poor or incomplete inputs affect the time required and should be noted.
A client on an older version of AutoCAD or a different CAD platform may need exports or conversions that add time.
Limits unpaid rework and gives you a clear point at which to charge for further changes.
ASME, ISO, architectural standards, or GD&T requirements change the effort. Naming them avoids surprises when the client expects a certain level of detail.
Delays in client feedback can stall the project. Set expected review times and note that the schedule shifts if feedback is late.
Clients sometimes assume drafting includes engineering review, structural calculations, or a licensed professional's seal. State clearly that it does not unless you are licensed and it is quoted.
| Service | Priced | Typical range |
|---|---|---|
| General 2D drafting and drawing updates | per hour | $35-75 |
| 3D part and assembly modeling (SolidWorks, Fusion 360, Inventor) | per hour | $50-110 |
| Manufacturing drawings with GD&T | per drawing sheet | $75-250 |
| Architectural floor plan set from field measurements | per sq ft | $0.40-1.50 |
| Permit or construction drawing set (residential) | flat fee | $800-3,500 |
| 3D model for printing or prototyping | per model | $100-600 |
| Photorealistic rendering | per image | $75-400 |
| On-site measuring and field verification | per hour | $50-90 |
Typical US ranges. Rates vary by region, experience, and job size.
Break the job into parts, drawings, and review cycles, estimate each, and add 15 to 25 percent for clarification and unexpected changes. Quote the total as a flat fee or a not-to-exceed hourly cap.
Quote concept modeling, detailed drawings, and final release as separate phases. This lets the client commit step by step and gives you natural points to bill.
Surfacing, sheet metal, weldments, and tight-tolerance assemblies take longer than simple prismatic parts. Reflect that in your hourly estimate or per-part price.
Set a window, such as 30 days, so you are not held to old pricing if the client comes back months later or if your schedule has changed.
Use a fixed quote when scope and inputs are clear. Use an hourly estimate with a cap when requirements are likely to evolve. Either way, explain what happens if the scope changes.
Simple quotes are usually free. For large jobs that require a site visit, review of complex files, or a detailed feasibility study, some designers charge a fee and credit it toward the project if the client moves forward.
Refer to the written scope and send a change order with the added hours and cost before doing the extra work. Get approval in writing, then add it to the final invoice.
Many designers ask for 25 to 50 percent upfront, especially for new clients or fixed-fee jobs. It covers your early time and confirms the client is committed. Include the deposit terms in the quote.
Use the CAD Designer invoice template to bill the client, or convert this estimate once it's approved.
CAD Designer invoice template