Check an Interior BOQ Before Approving Your Quotation
What Is a BOQ in Interior Design?
A BOQ, or bill of quantities, is an itemised document listing the work and materials required for an interior project, together with their quantities and measurement units. A priced BOQ also includes rates and amounts.
It helps homeowners, designers and contractors understand what is being priced and supplied.
For example, “bedroom wardrobe” is a broad description. A useful BOQ identifies the wardrobe’s dimensions, materials, finish, internal arrangement and hardware—or refers to drawings and schedules containing those details.
The more clearly the work is defined, the easier it becomes to compare quotations and track changes.
Why Do You Need a BOQ for Home Interiors?
A single project total tells you how much a vendor proposes to charge. A BOQ explains what that amount covers.
It helps you:
- Compare equivalent work across vendors.
- Identify missing items and exclusions.
- Understand how quantities affect the price.
- Separate essential work from optional upgrades.
- Check additions, substitutions and credits.
- Review supplied work against the agreed scope.
A BOQ supports budget control, but its usefulness depends on accurate quantities and clear specifications. An itemised document can still be incomplete.
BOQ vs Estimate vs Quotation: What Is the Difference?
These terms are sometimes used loosely. Check the actual contents of each document.
| Document | Main purpose | What to look for |
|---|---|---|
| Estimate | Gives an early indication of likely cost | Assumptions, scope and provisional amounts |
| BOQ | Lists work items, units and quantities | Measurement details and specification references |
| Priced BOQ | Adds rates and amounts to the item list | Calculation basis, inclusions and exclusions |
| Quotation | Presents a vendor’s commercial offer | Price, validity, payment terms and conditions |
| Drawings and specifications | Explain what will be built and how | Dimensions, materials, finishes and construction details |
A vendor’s quotation may contain a priced BOQ. The document’s title matters less than whether the information is complete.
What Should an Interior Design BOQ Include?
Item Number and Location
Give each item a clear reference and identify its room.
For example, “BR-01: Main bedroom wardrobe” is easier to track than several rows labelled “wardrobe.”
Description and Specifications
Describe the work clearly or reference the relevant drawing and specification schedule.
For cabinetry, this may include material, thickness, finish, dimensions and internal configuration. Hardware can be listed separately or included through a clearly referenced schedule.
Measurement Unit
State whether the item is measured by square foot, running foot, number, set or lump sum.
The unit must match the description. “Sq ft” should explain whether it refers to cabinet frontage, painted surface or another measured area.
Quantity
Record the measured quantity or number of items.
Where quantities are provisional, mark them accordingly and explain how they will be verified.
Rate and Amount
A priced BOQ should show the rate and calculated amount for each measurable item.
Item amount = Quantity × Unit rate
For a lump-sum item, provide a sufficiently detailed scope to make the amount reviewable.
Inclusions, Exclusions and Notes
Clarify whether rates include materials, labour, hardware, delivery and installation.
Identify taxes and other charges without assuming they receive the same treatment across every quotation.
Sample BOQ Format for Interior Design
The following is a hypothetical example for a limited room refresh. Rates are illustrative calculations, not market-price recommendations.
| Item | Description | Unit | Quantity | Illustrative rate | Amount |
|---|---|---|---|---|---|
| 1 | Wardrobe, 6 ft wide × 7 ft high; materials, depth, internals and hardware as approved schedule | Frontage sq ft | 42 | ₹1,500 | ₹63,000 |
| 2 | Study desk, dimensions and finish as approved drawing | Number | 1 | ₹18,000 | ₹18,000 |
| 3 | Wall painting, preparation and paint system as specified | Surface sq ft | 400 | ₹30 | ₹12,000 |
| 4 | Ceiling light fittings, selected model | Number | 4 | ₹1,500 | ₹6,000 |
| 5 | Delivery and installation for the listed items, as defined in scope | Lump sum | 1 | ₹6,000 | ₹6,000 |
| Subtotal | ₹1,05,000 |
Example assumptions: Furniture rates include fabrication but exclude the delivery and installation listed separately. Lighting excludes rewiring. Applicable taxes, unlisted repairs, appliances and furnishings are outside this subtotal.
A real BOQ needs the referenced drawings, material schedules and scope notes attached. Descriptions such as “as approved” are useful only when everyone can identify the approved document.
How Are Quantities Measured?
Different interior items require different measurement methods.
| Work item | Possible measurement basis | What to confirm |
|---|---|---|
| Wardrobe | Front-facing width × height | Depth, lofts, internals and hardware |
| Kitchen cabinets | Modules, running length or frontage area | Base, wall, tall and corner units |
| Painting | Measured wall or ceiling surface | Preparation and treatment of openings |
| False ceiling | Defined ceiling area | Drops, coves, finishing and access panels |
| Furniture | Number or set | Dimensions and included components |
| Electrical work | Defined points, lengths or individual items | Wiring, fittings, installation and testing scope |
Ask for the measurement sheet behind significant quantities.
For L-shaped kitchens, corners and other complex arrangements, confirm how the components are counted. Do not assume all vendors use the same convention.
When Should a BOQ Be Prepared?
An initial BOQ can be developed once the layout and main requirements are reasonably defined.
It should become more detailed as you finalise materials, furniture dimensions, hardware and site work.
Before execution approval, reconcile the priced BOQ with:
- Verified site measurements.
- Approved layouts and furniture drawings.
- Material and finish selections.
- Hardware and fitting schedules.
- Known site-preparation requirements.
Keep the revision number and date visible. This helps prevent an older price list from being used with a newer design.
How Do You Use a BOQ to Compare Interior Quotes?
Give Vendors the Same Information
Share the same drawings, quantities and specifications wherever possible.
Ask vendors to identify proposed substitutions rather than silently changing the specification.
Compare Item Rates and Scope
A lower wardrobe rate may exclude drawers or use a different material. A higher rate may include delivery and installation.
Resolve those differences before comparing totals.
Review Exclusions
Ask each vendor to list what you must buy or arrange separately.
Add those required costs to your comparison so an incomplete quotation does not appear cheaper.
Check Provisional Amounts
Identify allowances for undecided items.
Ask how the price will change once the actual material, fitting or quantity is confirmed.
Check for Overlapping Charges
If installation is included within cabinet rates, ask what a separate installation line covers.
There may be a valid explanation, but it should be documented.
Does a BOQ Prevent Hidden Charges?
A BOQ makes the scope easier to inspect, but it does not guarantee a fixed final amount.
Costs can change because of approved additions, revised quantities, product substitutions or previously unidentified site conditions.
Agree on a written change process. Each change should record:
- The affected BOQ item.
- What is changing and why.
- The additional charge or credit.
- Any effect on the schedule.
- Approval before the work proceeds.
If you remove an item, ensure the updated total reflects the appropriate credit.
Is Budget Guidance the Same as a BOQ?
Not necessarily.
Budget guidance may help you understand likely spending categories or compare design choices. A detailed BOQ needs defined items, quantities, units and specification references.
Houspire’s published offer includes Budget Direction alongside room visualisation. Additional drawings are separately priced, while execution and on-site supervision are excluded. Ask for a sample of any budgeting document before purchasing. Confirm whether it provides indicative guidance or the detail required for contractor pricing.
Related Planning Guides
- Compare interior quotations using the same scope
- Understand design-only and turnkey responsibilities
Final Thoughts
A useful interior BOQ connects the proposed design to measurable work and clearly described components.
Review it alongside the drawings, specifications and commercial terms. Keep it updated as decisions change, and use the approved version to compare quotations and track execution costs.
Explore Houspire’s design plans to clarify your room requirements before requesting execution quotations.
Frequently Asked Questions
What does BOQ stand for in interior design?
BOQ stands for bill of quantities. It lists the required work items, measurement units and quantities. A priced BOQ also includes rates and amounts.
Who prepares an interior BOQ?
Depending on the project, a designer, quantity surveyor, contractor or specialist vendor may prepare it. Establish who verifies quantities and coordinates it with the drawings.
Does a BOQ include labour?
It can. Labour may be included in item rates or listed separately. The document should state the treatment clearly.
Is a BOQ enough to start carpentry?
Usually, it must be read with approved drawings and specifications. A quantity and price alone do not explain every dimension or construction detail.
Can the final bill differ from the BOQ?
Yes, depending on the agreed pricing terms and approved changes. Record quantity adjustments, additions, substitutions and credits throughout the project.
What should I check first in a BOQ?
Check that it matches the approved design, uses clear specifications and identifies exclusions. Then verify quantities, calculations and the final payable amount.