MEP BOQ Format for a Factory Project: Structure, Units and the Items Everyone Forgets

An MEP BOQ for a factory is organised by discipline (electrical, HVAC, plumbing and drainage, fire fighting, ELV), then by system, then by item. Every line carries a reference, a full description with specification and make, a unit, a quantity, a rate and an amount. Add preliminaries, testing and commissioning, approvals, documentation and handover as their own sections, or they will be missing.

What a BOQ is for

A bill of quantities lets every bidder price the same work. The Department of Expenditure's works manual says the bill forms an important part of any contract, that its quantities are best estimates, and that payment is made for the quantities actually measured. It warns that major errors in items or quantities let a bidder shape the rates to be lowest on paper and gain when the quantities are corrected. In item-rate contracts it describes quantity variations of about 10 to 15 per cent as reasonable, with larger changes needing approval. So the format is not paperwork. A clear format is how you make bids comparable and keep the final account close to the contract.

The columns every line needs

The reference ties the line to a drawing and a specification clause. The description says what is included in the rate: supply, fixing, jointing, testing, and which accessories are part of it. Rates are left empty for the bidder. The quantities come from the drawings, not from a previous job. The above table is an illustrative layout, not a priced sample.

Sections and the units each discipline uses

Units depend on the discipline, and should be written in the preamble so that nobody measures differently. The following are the usual conventions, which your specification should confirm.

• Electrical: cables and trays in metres by size and type; panels, transformers, DG sets and luminaires in numbers; wiring in points or metres; earthing pits in numbers with the earth conductor in metres.
• HVAC: chillers, AHUs, fans and VRF units in numbers with duty stated; ductwork typically in square metres of sheet by gauge (some specifications use kilograms); refrigerant and chilled-water pipe in metres by diameter; insulation in square metres.
• Plumbing and drainage: pipes in metres by diameter and class; valves and fittings in numbers; sanitary fixtures in sets; tanks and pumps in numbers with capacity stated; STP as a package with its civil scope defined.
• Fire fighting: pumps in sets with duty, pipework in metres, valves and hydrants in numbers, sprinkler heads and detectors in numbers, panels in numbers, with the subsystem split shown in our fire fighting BOQ guide.
• ELV: cameras, access points, outlets and racks in numbers; cabling in metres; software and licences as separate lines.

The items everyone forgets

A BOQ that lists only equipment and pipe and cable is missing the cost that appears at the final account. Add these as lines or sections.

• Preliminaries: mobilisation, site office, safety measures, insurance, scaffolding, cranes and hoists, temporary power and water.
• Builder's work in connection: cutting, chases, sleeves, trenches, plinths, equipment foundations and the making good of finishes. State whether this is in the MEP contractor's scope or the civil contractor's.
• Supports and hangers for pipes, ducts and trays, which are often 'included' and then argued over.
• Fire stopping and sealing where services pass through fire-rated walls and floors.
• Identification: labelling, colour coding, valve tags and cable markers.
• Testing and commissioning: insulation resistance and earth tests, pressure tests, flushing, air and water balancing, functional tests of alarms, with the test certificates as deliverables. See our testing and commissioning service.
• Statutory approvals and fees: Fire NOC, electrical inspector clearance, pollution consents and utility connections, with who files and who pays.
• Documentation: shop drawings, as-built drawings, O&M manuals, warranty certificates, training sessions.
• Spares and consumables for the first year of operation, if you want them priced.
• Dismantling and disposal of existing services in an expansion.

Provisional sums, alternates and rate-only items

A provisional sum is a placeholder for work whose scope is not yet known, such as a connection to an existing panel. Use it sparingly, state what it covers and how it will be drawn down, and require the contractor's rate for the same work to be re-measured when the scope is known. A rate-only item is priced but not added to the total, which suits optional work such as extra points. An alternate lets bidders price a different make or system beside the base case. Mark each type clearly, because a total that quietly includes a placeholder cannot be compared with one that does not.

How to check a BOQ before it goes out

Take the drawings and walk every symbol into a line, and every line back to a symbol. Check the units against the preamble. Check that the Fire NOC drawing and the fire BOQ describe the same scope. Compare quantities against the hydraulic, load and heat calculations. Our guides on a BOQ that cannot be gamed and on quantity mismatch explain what happens when the check is skipped, and the MEPF cost calculator gives a top-down sense of the budget against which to read the bottom-up bill. See also the BOQ glossary entry.

How Secured Engineers helps

We write BOQs for our own turnkey MEPF jobs and we review BOQs prepared by others. Design is done in-house, so the bill is built from the same drawings that go for approval, and Fire NOC, CEIG and DISCOM net-metering applications are filed in-house. Mechanical, electrical, plumbing, fire and solar work can sit under one contract. We work from offices in Noida (Delhi NCR) and Ludhiana, with 535+ projects across 18+ states and 89.77% repeat clients.

If you hold a BOQ and drawings, send both. We will check that every line has a drawing behind it and every drawing item has a line, and tell you what is missing or measured differently. See our MEPF contracting service, message us on WhatsApp, call +91 70099 85817, or ask for a free proposal.