Flooring Material Cost vs Installation Cost: Which Area Should You Use?

THE SGFLOORHUB WORKBOOK · VISUAL GUIDE

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Follow the material from measurement to order

The demonstration project measures 32 m². After the illustrative allowance and pack rounding, the order becomes 37.5 m². If material is priced at a hypothetical S$30/m² of ordered coverage, the supply amount is S$1,125. Using only 32 m² in that material line would produce S$960 and omit S$165 associated with the larger order. Check pack coverage, the required number of packs and the quantity basis in the proposal before accepting either figure.

Read the labour charging basis

If the written installation rate is a hypothetical S$12/m² of measured area, 32 m² produces S$384. Applying that same rate to 37.5 m² produces S$450, a difference of S$66. This comparison explains the arithmetic; it does not establish the supplier’s contractual charging method. A provider might use a fixed package, a minimum charge or another agreed basis. Ask for that basis explicitly rather than assuming every installer follows the worksheet’s model.

Keep other units on their own lines

Skirting may be described by running length, trims by item count and delivery by a fixed lot. Those quantities should not be treated as square metres. Enter each additional cost with the unit used in the quotation. If a job has a minimum installation charge, confirm how it replaces or supplements an area rate. Where a package includes material and labour together, preserve the package description and avoid charging the included work again in separate fields.

Ask one precise question per ambiguous line

A useful enquiry is: ‘Does your installation rate use the 32 m² measured area, the 37.5 m² material order, or a fixed project quantity?’ Ask a separate question about skirting, preparation and minimum charges. Keep the answers with the final proposal. The Budget Planner helps you test the resulting arithmetic; the Quotation Checklist helps you record whether the quantity and unit have been verified. Both records become more useful when the provider’s charging basis is written down.

Compare the quantity basis without assuming the contract

Different charging bases are not automatically double-billing or misconduct. Obtain the agreed basis in writing. For another rounding example, 72 × 1.10 ÷ 2.2 = exactly 36 packs, giving 79.2 m²—not 81.4 m².

Practical questions