How to Meet Your Target Prices with Cost Engineering in Product Design
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- Author: SVI Content Team
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Product design is a process of continuous iterative optimization. A product often undergoes tremendous changes from its initial concept to final production, because conception is an idea, whereas the physical product must be built and tested for structural and functional feasibility.
When the estimated cost is higher than your target price, removing features or lowering quality is rarely the best solution. Instead, cost engineering takes the optimal balance between cost and performance in a more structured approach while maintaining core value.
This guide uses apparel manufacturing to show how cost engineering works in practice, identify where costs come from, and evaluate alternatives. The same principles can be applied to many other manufactured products.
Part 1. What Is Cost Engineering
Cost engineering is the process of analyzing and managing product costs during the design and development stage to meet a defined target price. Instead of cutting costs after production begins, cost engineers work with design and sourcing teams to identify cost drivers early and make informed trade-offs before the product is finalized.
It focuses on the product itself and breaks the design down into the elements that drive cost, such as materials, components, construction, and manufacturing processes. This helps engineers evaluate alternatives that can reduce cost without compromising the product’s core function, appearance, or customer value. A costing team can:
1) Review a design or sample against the target price and recommend more suitable materials or construction methods.
2) Identify unnecessary costs and simplify parts of the design
3) Compare suppliers based on both pricing and manufacturing capability to determine where the product can be produced most efficiently.
4) Match the right design with the right cost and the right manufacturing capability.
However, product cost engineering is not about cutting every possible cost. It works within clear boundaries by protecting the elements that matter most:
1) Design features: Signature prints, distinctive silhouettes, or functional details that define the product’s appeal should not be compromised.
2) Compliance and safety requirements: Regulatory and retailer standards are non-negotiable; the risk of non-compliance, especially for baby and children’s products, far exceeds any cost savings.
3) Quality: Every product has a minimum quality level to make sure it is reliable, below which the product can lead to defects and customer complaints.
The goal is to find room in the cost structure while protecting the design intent.
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Part 2. What Does a Factory's Cost Per Unit Include
Before reducing cost, you need to know where it comes from. A factory’s unit price is made up of several cost components, but not all of them can be changed equally. Cost engineering focuses mainly on the parts that can be influenced through design, materials, processes, and sourcing decisions.
For an apparel product, factory cost prices usually include:
- Main fabric — Material type, weight, width, yield. This is often the largest cost component.
- Trims and accessories — Labels, zippers, buttons, packaging and other components.
- Print and embellishment — Printing, embroidery, or other decoration costs.
- CM cost — Cutting, sewing, finishing, quality control, and packing.
- Others — Factory general expenses & profits, tooling and setup, packing materials & freight for transporting goods to ports, etc.
Here’s a breakdown of those factors that account for a factory price.
| Cost Item | What Included | Appro. Share of Total Cost |
|---|---|---|
| Main fabric | material type, weight, width, yield | 40–50% |
| Trims and accessories | labels, zippers, buttons, packaging | 10–15% (together) |
| Print and embellishment | Printing, embroidery, or other decoration costs | |
| CM cost | Cutting, sewing, finishing, quality control, and packing | 20% |
| Others | Finishing, tooling and setup, local logistics and overhead, margin, etc. | 10% |
These percentages are illustrative rather than fixed industry standards. The actual cost structure varies by product, manufacturing country, and order volume.
This cost breakdown helps identify where manufacturing cost engineering should start. The higher the cost contribution of a component, the greater the potential impact of optimizing it.
Part 3. What Is the Cost Engineering Process
Here’s the how-to:
Step 1: Receive the design brief and target price
The brief may come as a tech pack, a reference sample, or a mood board with an ex-factory/FOB price. The target costing is given by the customer.
Step 2: Build the cost breakdown
Break the product down into its main cost components and calculate the current cost for each one. For apparel, this may include fabric, trims, printing or embroidery, sewing, finishing, and packaging.
The result is a clear cost model that shows where the money is going.
Step 3: Identify the cost gap
Compare actual cost to target price. If the actual cost exceeds the target, how large is the gap? Which components contribute most to the overage?
Not every cost can or should be changed. Classify each item into fixed and variable costs and you can pinpoint the major cost drivers.
Step 4: Generate cost-reduction options
For each addressable cost driver, develop specific alternatives and quantify the savings per unit for each option.
You should write down the optional choices for each item and see count the costs of the alternatives. It is to seek lower-cost ways to deliver the same required function and customer value.
For example, an apparel product might use a similar but lower-cost fabric, a simpler printing method, fewer print colors, or reduced fabric length.
Step 5: Evaluate trade-offs
Not every cost saving is worth taking. Compare each option against the original brief and make the trade-offs clear: what changes, what stays the same, how much it saves, and what risks it creates. Consider the impact on appearance, function, durability, compliance, and brand positioning.
Step 6: Align with the buyer
Once the alternatives are evaluated, present them to the buyer with both the cost impact and product impact clearly defined. The buyer can then decide which changes are acceptable and which are not.
The goal is to reach an agreed balance between target costing, product value, and acceptable risk. Once approved, the selected option becomes the basis for the revised product design and costing.
Step 7: Prototype, approve, and validate
The selected solution should be built into a prototype and tested before mass production. Once approved, the final prototype becomes the golden sample or production reference standard.
During and after bulk production, compare the actual results with the original cost model and use that to improve the next costing round and future product development.
Part 4. What Aspects Can Cost Engineers Use to Reduce Cost
The strongest opportunities usually come from changing elements of the product or production process that have a large cost impact while preserving the features customers actually value. These are the main areas where cost engineering finds room to adjust.
1: Main Material Substitution — The Most Direct Method
Material is often one of the largest contributors to product cost, so it can be the most direct method for cost optimization in apparel. This could include:
- Swap a 100% cotton fabric for a cotton-polyester blend with a similar hand feel.
- Use a lighter-weight version of the same fabric type to reduce material consumption per unit.
- Source an equivalent quality from a more competitive supplier.
The key is to preserve the required appearance, hand feel, performance, and durability.
2: Print and Embellishment Technique — The Most Impactful Method
Printing and embellishment can affect both material consumption and production time. Changing the decoration method can therefore create meaningful savings without changing the overall design. For example:
- Different printing techniques vary in cost. Choose the optimal one between screen print vs. digital print vs. heat transfer.
- Move from multi-color screen printing to a more suitable digital or transfer method
- Reduce the number of print colors
- Move from all-over print to placement print or reduce print area
The best option depends on order volume, artwork complexity, fabric, and required appearance.
3: Dimensions and Pattern Adjustment
Small changes to the pattern can reduce the amount of material consumed per unit, and at production scale, material yield efficiency has a significant cumulative effect.
For example:
- Adjusting cut lengths, seam allowances, or silhouette to reduce fabric yield
- Small pattern changes can save meaningful material cost at scale
The same principle applies to other products through part geometry and packaging optimization. At high production volumes, even a small reduction in material usage per unit can create significant savings.
4: Construction and Sewing Technique
More complex and precise products may apply different technique, which adds more time and errors in production. Simplifying the construction can therefore reduce manufacturing cost while maintaining the required strength and appearance.
For example:
- Replace seam types where both are structurally acceptable
- Use a simpler hem finish — turned and topstitched instead of blind hem
- Reduce stitch density on non-structural seams
- Remove an internal facing and replace with a clean-finish edge
This follows the Design for Manufacturing and Assembly (DFMA) principle: fewer steps and simpler assembly generally mean lower production cost.
5: Accessories and Trim Selection
Trims and accessories are often the most underestimated cost category because each item may have a small unit cost. Together, however, they can add significantly to the final price.
It’s better to review whether each component is genuinely necessary and whether a standard alternative can achieve the same result. For example:
- Replace a metal zipper pull with a standard or no-pull option
- Swap a woven label for a printed or heat-transfer label
- Remove a hang tag tier or simplify the packaging insert
- Evaluate whether every trim item is visible or functional to the end customer
The principle applies the same idea across industries: remove unnecessary components, standardize where possible, and keep the functions customers value.
Conclusion
It is rare for any product design to go in one easy step. A concept that looks perfect on paper may require several tweaks after matching with real manufacturing. Materials, construction, components, and production methods can all affect the final cost and production.
Cost engineering breaks the product down into its cost drivers; thus, supporting teams can identify where adjustments are possible without losing the design intent.
It takes practical factory experience to understand how a design will translate into production, where costs come from, and which changes will actually work.
With hands-on experience across multiple product categories, SVI Global supports you from early product development through to production. Whether you are developing a new product or testing an existing concept, we are able to help you find the right balance between design, cost, and capability.
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