How to Read an Interior Design BOQ
A bill of quantities, or BOQ, translates the design into measurable items. It should help you understand what is being supplied and how the price is calculated. Read it alongside the latest approved drawings. If a visible feature is absent from the BOQ, ask whether it is included before authorising production.
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Understand each line item
A useful line identifies the room, item, dimensions, quantity, unit of measurement and specification. Cabinet fronts may be measured by area, some accessories by number and other work by length. Ask which convention applies and whether rounding is used. For illustration, a rectangular face measuring 2 metres by 2.4 metres has an area of 4.8 square metres; that calculation does not automatically describe every panel used to build the cabinet.
Read beyond the material heading
Check substrate, thickness, grade, face finish, reverse finish and edge treatment. Hardware descriptions should identify the required type and model where appropriate. Verify whether shelves, back panels, lofts and fillers are included. A broad line such as bedroom wardrobe may hide several assumptions. Ask for a breakdown when those assumptions affect function, quality or price. Keep selected samples and finish references connected to the written specification.
Reconcile the BOQ with drawings
Use room and unit labels that appear in both documents. Check widths, heights and quantities against the latest revision. Confirm that lighting provisions, service cut-outs and appliance spaces have an owner. A drawing can show items supplied by another vendor, so distinguish visual context from quoted work. Resolve discrepancies before manufacturing rather than relying on whichever document is more convenient later.
Check totals and revisions
Review applicable taxes, discounts, transport, installation and exclusions. Keep a dated accepted version. Changes should show the added or removed quantity, specification and price consequence. Ask for a revised total after a variation instead of tracking several verbal adjustments. The BOQ is most useful when it remains an active record through execution and handover. Keep any measurement conversion visible so that millimetres, metres and square feet are not accidentally mixed.
Questions homeowners ask
Is a BOQ the same as a render?
No. A render illustrates appearance; the BOQ records measurable supply and work.
What does a lump-sum line mean?
It prices a defined scope as one amount. Ask for the scope and exclusions when they are not clear.
Should changes be added to the BOQ?
Yes. Keep a revision or approved variation record so the final scope and amount remain traceable.
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