Materials are only part of what the customer buys. Fabrication, installation, travel, adjustments and additional services also consume time and resources.
Describe the scope
List what is included, where your responsibility ends and what conditions could change the price. A clear description reduces disagreements later in the project.
Calculate effort and cost
Consider staff, hours, travel, tools, access difficulty and expected rework. Use units that make proposals easy to review and compare.
Separate services from materials
Showing components separately helps explain the proposal and update an item without rebuilding everything.
Read about overlooked quoting costs.