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Analysis of Cost Composition and Quotation for Industrial Sheet Metal Fabrication

Release time:

2026-06-08

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Abstract

In the industrial manufacturing sector, sheet metal fabrication is widely used in products such as electrical cabinets, control cabinets, enclosures and racks, housings for automation equipment, new‑energy devices, and mechanical structural components. When requesting quotes, many customers’ primary concern is: “How is the price for sheet metal fabrication calculated?” This article provides a detailed analysis of the cost structure and pricing factors involved in industrial sheet metal fabrication, helping companies better manage their procurement expenses.

What factors determine the quotation for sheet metal fabrication?

The final price of sheet metal products is not determined solely by weight; rather, it is shaped by a combination of factors, including material costs, manufacturing processes, labor, surface treatments, and overhead expenses.

1. Raw material costs

Raw materials typically account for 50% to 70% of the total cost of a sheet metal product.

Common materials include:

Cold-rolled steel sheet (SPCC)

Hot-rolled steel plate

Galvanized Steel Sheet (SECC)

Stainless steel sheet (304, 316)

Aluminum sheets and aluminum alloy sheets

Material prices are influenced by market conditions, sheet thickness, order quantity, and brand. In general, stainless steel and aluminum alloy materials are significantly more expensive than ordinary carbon steel.

2. Laser cutting costs

Laser cutting is a critical process in sheet metal fabrication, and its cost is primarily influenced by the following factors:

Board thickness

Cutting length

Number of hole positions

Product complexity

Equipment operating time

The longer it takes to cut a complex part, the higher the machining cost.

3. CNC bending costs

Bending operations are typically billed based on the number of bends.

Factors affecting bending costs include:

Number of bends

Bending angle

Product dimensions

Machining accuracy requirements

For workpieces with complex structures and numerous bends, the bending cost will increase significantly.

4. Welding and Assembly Costs

For large sheet-metal products such as cabinets, enclosures, and electrical cabinets, welding and assembly costs account for a significant share of the total cost.

Mainly includes:

Tungsten inert gas welding

Carbon dioxide shielded welding

Spot welding

Robotic welding

Assembly and debugging

The longer the weld length and the higher the weld‑quality requirements, the greater the labor and man-hour costs.

5. Surface Treatment Costs

Surface treatment directly affects the product’s appearance and its corrosion‑resistance performance.

Common processes include:

Electrostatic powder coating

Spray painting

Hot-dip galvanizing

Electroplating

Anodizing

Silk-screen marking

Prices vary significantly across different manufacturing processes; in particular, outdoor equipment typically requires higher‑grade corrosion protection, which accordingly drives up costs.

6. Molds and Development Costs

For mass-production projects, the following may be involved:

Stamping die development

Tooling and Fixture Fabrication

Product Sample Verification

Small-batch orders typically require apportioning mold costs, resulting in a relatively higher per-unit cost; once production scales up to batch quantities, the unit cost drops significantly.

7. Labor and Management Costs

The sheet metal fabrication process involves:

Engineering Design

Process Programming

Quality inspection

Production Management

Packaging and Shipping

These are all essential components of the quotation that cannot be overlooked.

Sheet Metal Fabrication Quotation Calculation Logic

A complete sheet metal product quotation typically includes:

Material costs + laser cutting fees + bending fees + welding fees + surface treatment fees + assembly fees + packaging and shipping costs + administrative expenses + profit

Therefore, for two products of the same weight, differences in structural complexity can result in price disparities of several times.

How can sheet metal fabrication costs be reduced?

Companies can implement cost-control measures already during the product design phase:

Optimize structural design

Reduce unnecessary bends, welds, and holes to improve machining efficiency.

Improve material utilization rate

Optimize layout to minimize material waste.

Standardized design

Adopt standard dimensions and universal components whenever possible to simplify manufacturing.

Centralized bulk procurement

Mass production can effectively spread the costs of tooling, programming, and machine setup.

Choose a one-stop sheet metal fabrication manufacturer.

With design, manufacturing, coating, and assembly all handled in-house, communication costs and intermediate steps are minimized, boosting delivery efficiency.

Industrial sheet metal fabrication pricing encompasses multiple factors, including materials, processes, labor, surface treatments, and management. Understanding the cost structure of sheet metal fabrication not only enables companies to accurately evaluate supplier quotes but also allows for early structural optimization during the product design phase, thereby reducing overall manufacturing costs.

For projects involving electrical cabinets, control cabinets, chassis and enclosures, housings for automation equipment, and sheet-metal components for new-energy devices, partnering with an experienced, one-stop sheet-metal fabrication manufacturer can often ensure high quality while delivering more competitive procurement costs and more reliable lead times.

Key words:

How does sheet metal fabrication affect the service life of electrical equipment?

One-stop sheet metal fabrication manufacturer: from design to finished product delivery.

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