What a BOQ in interior design is, how it differs from a lump-sum quote, how to read eight typical lines and which red flags to watch for in Mumbai.
Short answer: A BOQ (Bill of Quantities) in interior design is an itemised list of every piece of work in your project, with the material, specification, quantity and cost for each line. Unlike a single lump-sum figure, a BOQ lets you see what you are paying for, compare quotes fairly and avoid disputes about what was included.
If you have collected two interior quotes for the same flat and the numbers look nothing alike, you have already met the problem a BOQ solves. One quote may say "complete interiors for a set amount". Another may list hundreds of lines. Without detail, you cannot tell which one is cheaper, which one is more complete or which one will grow later. This guide explains what a BOQ is, how to read one and what to look for before you agree to a quote.
What is a BOQ?
BOQ stands for Bill of Quantities. In construction, it is a document that lists the items of work and the quantities required. In interiors, it does the same job for your home: it breaks the project into rooms and items, such as a wardrobe, a TV unit, a kitchen run, a false ceiling or painting, and states what each one is made of, how much of it there is and what it costs.
A BOQ is not just a price list. It is also a shared understanding of scope. When both you and your designer sign it, everyone knows what will be built.
Lump-sum quote vs itemised BOQ
- Format: One total, sometimes room-wise; Itemised BOQ: Line-by-line items with specifications
- Transparency: Low: hard to see what is included; Itemised BOQ: High: each item is visible
- Comparing designers: Difficult; Itemised BOQ: Straightforward for like-for-like items
- Changes: Disputes are common; Itemised BOQ: Add or remove specific lines
- Risk of exclusions: Higher; Itemised BOQ: Lower, if exclusions are listed
A lump sum is not automatically dishonest. For a small job it can be fine. For a full flat, however, an itemised BOQ is the more reliable way to understand and control cost. Our guide on interior design cost per sq ft in Mumbai explains why a single rate rarely tells the full story.
What a good BOQ contains
- Room-wise or area-wise sections, so you can see where the money goes.
- A description of each item with dimensions or quantity.
- Material and finish: board type, thickness, laminate or paint specification.
- Hardware and accessories: hinges, channels, handles, locks, drawers.
- Unit of measurement (square feet, running feet, numbers, lump sum for a defined item).
- Cost per unit and total per line.
- Notes on inclusions, exclusions and tax.
How to read eight sample lines
The lines below are a simplified example only, not a quote. The figures are placeholders to show how a BOQ is read. They are not rates and do not reflect any real project.
- 1: Bedroom wardrobe, hinged; Specification: Plywood carcass, laminate shutters, soft-close hinges; Qty / unit: 40 sq ft; Cost (example): Rs XX,XXX
- 2: Wardrobe internal fittings; Specification: 2 drawers, 1 hanging rod, 3 shelves; Qty / unit: 1 set; Cost (example): Rs XX,XXX
- 3: TV unit with storage; Specification: Board type and thickness named, finish named; Qty / unit: 8 running ft; Cost (example): Rs XX,XXX
- 4: Kitchen base units; Specification: Moisture-resistant board, named hardware; Qty / unit: 12 running ft; Cost (example): Rs XX,XXX
- 5: False ceiling, living room; Specification: Gypsum board, framing type named; Qty / unit: 120 sq ft; Cost (example): Rs XX,XXX
- 6: Electrical points; Specification: Concealed wiring, switch type named; Qty / unit: 10 nos; Cost (example): Rs XX,XXX
- 7: Painting, walls; Specification: Primer plus two coats, product named; Qty / unit: 900 sq ft; Cost (example): Rs XX,XXX
- 8: Debris removal and cleaning; Specification: As per site; Qty / unit: Lump sum; Cost (example): Rs XX,XXX
What each column tells you
Item and specification: The more specific, the better. "Wardrobe" alone is not enough. You want to know the board, the finish and what is inside.
Quantity and unit: Check that the quantities match the drawings. If your wardrobe wall is 8 feet wide and 8 feet tall, a 40 sq ft line does not add up. Ask how the measurement was taken, because some firms measure the front elevation and others measure carcass and shutters separately.
Cost: Look at unit rates and totals. Be wary of lines that give a unit cost far below or above the others without explanation.
If you would like to see a real itemised BOQ prepared for your flat, book a free site visit and we will prepare one after the visit.
What to check line by line
Material
Is the board type named? Mumbai's humidity makes this important in kitchens, bathrooms-adjacent walls and wardrobes. Our guide on kitchen cabinet materials explains the main options. Whichever you choose, the BOQ should state it.
Thickness
Thickness affects strength and durability. A BOQ should state it for carcass and shutters.
Hardware
Hinges, channels, handles, drawer systems and locks affect daily use more than most people expect. Ask for the type, and for brand or equivalent grade where relevant.
Finish
Laminate, veneer, paint, acrylic or other finishes have different looks, costs and maintenance. Request the finish name and ask to see a physical sample.
Scope boundaries
Is it supply only or supply and installation? Does it include civil work, electrical, plumbing, paint and cleaning? Does it include GST? Our article on hidden costs in interior work covers the usual gaps.
Red flags in a quote
- A single number with no breakdown for a full-flat project.
- Terms such as "as per site", "branded" or "standard" in place of named specifications.
- Large lump-sum items without drawings, for example "false ceiling, whole house".
- No exclusions list.
- Quantities that do not match the drawings or the 3D views.
- Pressure to sign quickly because the rate is available only for a short time.
- Unwillingness to revise or explain a line.
Questions to ask your designer about the BOQ
- Which lines are most likely to change once work begins, and why?
- Are measurements based on drawings or on the finished unit?
- What is the process if I want to replace a material with a different one?
- Which items are supplied by you and which by the designer?
- How will the BOQ be updated if the scope changes?
How to compare two BOQs
- Put both side by side, room by room.
- Match items: wardrobe to wardrobe, kitchen to kitchen.
- Compare specifications first and cost second. A cheaper line may use a different board or hardware.
- Check what is present in one BOQ and missing in the other.
- Ask each designer to explain differences you do not understand.
A BOQ is easier to produce when a design exists. That is why we prepare drawings and 3D views first. Read why in our article on 3D design before interior work, and see where the BOQ fits in the full interior design process.
How the BOQ protects you during the project
A signed BOQ works as a reference point at every stage. If a unit is installed with a different finish, you can point to the line. If you decide to add a drawer, the designer adds a line with its cost. If a payment milestone is due, you can check that the related work has been done. And at handover, the BOQ is your checklist: every item listed should be present, in the specification stated. Keep a copy of the final version with any change notes attached.
When you are ready to see how an itemised BOQ looks for your own home, book a free site visit. We will visit, measure, discuss your priorities and give you a free estimate, followed by an itemised BOQ you can read line by line. You can also read about our residential interior design service.
Frequently asked questions
Is a BOQ the same as a quotation?
They are related. A quotation gives a price. A BOQ gives the price along with the detailed list of items, specifications and quantities behind it. For interiors, an itemised BOQ is the more useful form of quotation.
Should I get the BOQ before or after the 3D design?
After the design is settled. The BOQ is based on the drawings and materials you approve, so changes to the design will change the BOQ.
Can the BOQ change after I sign it?
Yes, if you ask for additions or if site conditions require it. Any change should be recorded in writing with the cost and time impact before work proceeds.
What if my designer refuses to give a BOQ?
Ask why. For a full home, an itemised BOQ is a reasonable request. If the answer is unclear or the designer will not provide any breakdown, consider whether you are comfortable proceeding, and compare with other options.
