1. Define specifications before setting a price
Record box style (such as RSC or die-cut), inside dimensions, flute, paper combination, required strength, printing, order quantity and destination. Changes to design or strength May affect both material area and the production route.
Use the approved flat blank to determine material area. For an RSC, account for the manufacturer's joint, closure flaps and manufacturing allowances. Multiplying assembled length × width × height does not determine sheet consumption.
2. Separate useful material, waste and converting cost
An initial per-unit cost structure is: estimated cost = material consumed + converting + printing and finishing + allocated tooling + attributable logistics + other plant-defined costs. For materials, start with sheet area per box, paper combination or sheet cost per m² and expected yield. Corrugating and converting waste May have different causes and should be measured separately.
For converting, record the processes the part will actually use: printing, slotting, die-cutting, gluing or stitching. Include setup time, expected speed, planned downtime and batch size. Die and printing plate costs can be allocated based on commercial terms and expected volume; they should never be omitted from the quote.
3. Calculate the price from the target margin
If target margin is defined as a share of selling price, the formula is price = estimated cost ÷ (1 − target margin). Adding 25% to cost is not the same as achieving a 25% margin on sales.
Material $12.00 + converting $4.00 + other attributable costs $2.00 = estimated cost $18.00. At a 25% target margin on sales, price is $18.00 ÷ 0.75 = $24.00. If actual cost reaches $20.00 while the price remains $24.00, actual margin falls to 16.7%. Illustrative figures in MXN; each plant must use its own costs.
Before approval, review payment terms, volume, freight, special waste allowances and discount rules. Record the version of rates and assumptions used in the quote.
4. Compare estimates with the completed order
After production, compare actual paper consumption, waste, times, yield, allocated energy and delivery cost against the budget. Calculate variance by component, rather than only the total, to distinguish specification errors from material price changes or efficiency losses.
To analyze order margin, link the approved quote to the production order and reliable actual data. If information is missing, state the limitation instead of assigning the entire difference to an unverified cause.
Where does quoting software help?
Software can centralize specifications, drawing versions, material rates, process rules and approvals. When production data is available, it can also show expected versus actual costs for team review. Explore ProfitFlow for corrugated packaging manufacturers; DXF analysis, integrations and analytics scope are defined during the pilot.