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What Is a Bill of Quantities for Commercial Work?

The Construct GH Team

  • bill-of-quantities
  • cost
  • quantity-surveying
  • procurement

You will hear the term “BoQ” in every serious conversation about a commercial building in Ghana — and almost no one explains it to the client. This article does. If you are funding, tendering, or governing a commercial or institutional project, understanding the Bill of Quantities is how you take control of the cost.

What a Bill of Quantities Is

A Bill of Quantities (BoQ) is a measured, itemised document, prepared by a quantity surveyor, that lists every element of a building and prices it. Rather than a single headline number, it breaks the project into hundreds of priced lines — so the cost is built up from measured reality, not estimated from a rate.

It is prepared from your drawings and specification, measured to a recognised method (Ghana practice adapts the RICS standard methods used internationally), and priced at current local rates. The result is a document you, your funders, and a tender committee can all read, challenge, and rely on.

What’s Inside a BoQ

A commercial BoQ is typically organised by work section:

Each line carries a quantity, a unit, a rate, and a total. That structure is what makes the cost auditable.

Why It Is the Only Reliable Cost Figure

A commercial building’s cost cannot honestly be taken from a per-square-metre rate. Published per-m² figures in Ghana diverge by three to five times — roughly GH₵1,200 to GH₵6,500+ — because they are blog estimates, not measurements of your design. A BoQ replaces that guess with a number tied to your drawings.

It also lets you sanity-check inputs. Real published material prices are roughly cement at GH₵85–130 a bag and steel rods at GH₵6,300–11,000 a ton. A BoQ priced on cement at GH₵185+ or rods at GH₵19,000+ is using figures that have leaked into search at roughly double the market — a measured BoQ from a real quantity surveyor avoids that.

What a BoQ Does for You

It makes your project fundable

A bank or board commits against a measured, line-by-line cost — not an estimate that drifts once site starts.

It makes your project tenderable

When every bidder prices the same BoQ, you can compare like with like. Without one, you are comparing different scopes dressed as one price.

It controls the project as it runs

The BoQ becomes the baseline for valuing work done, agreeing variations, and tracking cost — so the final figure doesn’t surprise you.

It supports value engineering

Because the cost is itemised, you can see exactly where money sits and make informed trade-offs on frame, façade, or finish before you commit.

Who Prepares It

A BoQ is the work of a quantity surveyor — in Ghana, the Ghana Institution of Surveyors (GhIS) governs the quantity-surveying profession. Construct GH prepares a tender-ready BoQ with GhIS quantity-surveying and GhIE engineering input, built to L.I. 1630 and the Ghana Building Code (GS 1207:2018). See Commercial Construction Cost & BoQ for how a real budget is built.

Get a Real BoQ, Not a Guess

A classified, credentialed contractor since 1977, Construct GH gives you a measured BoQ before you commit — across Accra, Kumasi, Takoradi, and Lomé, Togo. Request a capability statement: +233 23 063 0028.