CSMFG / Extrusion buyer guide
Aluminum extrusion die cost: price the whole order.
A custom extrusion quote starts with the cross-section. Compare the die, parts, machining, finish and delivery together to see what your first order will cost.
What is an extrusion die, or mold?
An aluminum extrusion die is the tool that forms the profile’s cross-section. A new custom section needs suitable tooling; an existing standard section may use tooling that is already available. The die cost is a separate line from the price of the extruded and cut parts. It does not describe the total project price.
Start with the section you actually need, including its internal voids, wall thicknesses and overall dimensions. A hollow profile and a solid profile with the same outside width can have different tooling requirements. Material weight alone cannot establish the die price or whether the section is practical to extrude.
What changes a custom aluminum extrusion quote?
| Quote input | What to compare |
|---|---|
| Cross-section geometry | Overall size, enclosed cavities, thin walls and narrow features. Check the recovered geometry and drawing units. |
| Alloy and temper | Specify the material your application requires. Keep it consistent when comparing quantities. |
| Cut length and quantity | These determine the ordered material and how a separate tooling charge spreads across your parts. |
| Machining and finish | Compare cut ends, holes, taps, anodizing or powder coating as separate requirements. |
| Freight and destination | Use the same destination and delivery scope when comparing delivered totals. |
How to compare first-order and repeat-order costs
For a first order, compare the full project amount rather than the parts-only unit price. A useful calculation is:
First-order cost per piece = (die + parts + applicable fees + machining + finish + freight) ÷ ordered quantity
The calculator shows die tooling separately from the parts-only unit price. Raising the quantity spreads a fixed tooling charge over more pieces, but also increases the amount you buy. Compare the total cash required and the quantity you can use. A lower effective unit cost does not automatically make a larger batch the better purchase.
For a repeat order, ask CSMFG to confirm that the existing die is available, suitable for the approved revision and covered by the quoted terms. Do not assume a new-die charge will be waived automatically, or that changing the drawing leaves tooling unchanged. Die ownership, storage, maintenance and replacement terms should be confirmed for your project.
Use CAD or a picture to calculate the section
- Open the custom aluminum extrusion calculator with a DXF or STEP file. If you have only a picture or PDF, use extrusion-specific picture-to-DXF tracing and supply a known dimension.
- Check the cross-section, scale and calculated area. A picture-derived outline needs review, particularly around small holes and thin walls.
- Select the alloy, temper, cut length, quantity, machining and finish. Review the die and piece-pricing lines.
- Estimate delivery for your destination and download the quote PDF. Compare another quantity with the same specifications.
For a quick geometry check, weight per metre can be calculated from the material area: kg/m = area in mm² × density in g/cm³ ÷ 1,000. For example, 100 mm² at 2.70 g/cm³ is 0.270 kg/m. Use the selected alloy’s density, and subtract internal voids from the material area. This calculation estimates weight; it does not replace the tooling and production quote.
Small orders and standard profiles use different fee rules
The current CSMFG calculator has no minimum quantity. A new custom mold has no small-order fee. Standard profiles under one metric tonne have a $45 small-order fee and do not need a new custom die. A stock or catalog sample can exclude new tooling, so it should not be used as the tooling price for a different custom section.
These are calculator rules checked on November 1, 2026. Use the current quote for the amount payable. Availability, manufacturing feasibility and final specifications require review; production requires drawing sign-off. For small quantities, read the low-volume and prototype guide before choosing between a new die and an existing section.
What should I send for an engineering review?
Send the cross-section drawing, units, critical tolerances, alloy and temper, finished length, quantity and finish requirements. Identify any surfaces or dimensions that must fit a mating part. Include machining details, your destination and expected repeat demand. For capabilities and production evidence, visit the aluminum extrusion manufacturer page.