1. Two documents
The budget is the company's internal calculation, the tender the document submitted to the client, and their relationship explains most of the difficulty in comparing offers. The difference is substantive rather than formal.
| Budget | Tender | |
|---|---|---|
| For whom | the company itself | the client |
| Content | actual costs as precisely as possible | costs plus overheads and profit |
| Detail | greater | usually lower |
The margin is not spread evenly across the lines: according to professional sources, the lines a company can build more cheaply often carry a larger margin. Comparing line by line therefore compares pricing strategy, not costs.
2. Structure and the standard
Nothing has to be invented in order to classify construction costs, and this is the guide's most practical observation. A published standard already exists.
Estonia has a standard in force that has applied for more than twenty years, and one of the drafts it was built on was prepared by the construction companies' own representative organisation. Structured budgeting is therefore not a requirement imposed from outside but the sector's own agreement, used less than it might be.
3. Quantities
The centre of gravity in budgeting is not price but quantity, and that shifts where attention belongs. Quantities determine the accuracy of the result.
According to professional sources, calculating quantities is time-consuming and demands precision and experience, and the number of errors grows with the size of the project. If the source data are the same for every tenderer, all should arrive at the same result, which is why, in the words of a professional teaching text, the only thing that actually differs between separate calculations is the errors.
4. Tracking
A budget that is not tracked is a forecast, and a forecast manages nothing. Tracking begins before the works do.
Overrunning a budget is not an event that happens at the end: it accumulates throughout construction and is discovered at the end. The real purpose of tracking follows, and it is often misunderstood: the aim is not to reduce cost but to make a decision possible in time.
5. The client's role
A company does not change the form of its tender without a reason, and no single tenderer can impose a common form alone, since that would mean a document differing from its competitors' and harder to read. The form is set by the conditions of the procurement.
According to professional sources, the client's awareness and requirement is the lever that should move the market towards a common tender form. The change therefore comes from the demand side, not the supply side.
6. Three things to ask for
Three requirements solve three different problems, and none of them touches the company's costs. They bear only on presentation.
| What to ask for | What it solves |
|---|---|
| A common structure | comparability |
| Quantities | duplicated work and disputes over quantity |
| Unit prices | the pricing of variations |
None of them reveals the company's costs or margin, because a unit price is a selling price, not a purchase price. All three already exist within the company, so the requirement means a different presentation rather than extra work.
7. One test that requires no budgeting skill
A check question formulated in a professional source, which any client can put. The answer shows whether tenders are comparable.
If the builder handed the same tender tomorrow to a bank, to a site supervisor or to another construction professional to read, would they understand exactly what is to be done for that price? If the answer is no, the tender is not sufficient for a decision.
The test is useful precisely because it presumes no budgeting skill: it assesses the readability of the document, not the correctness of its figures. The question is the same for every tenderer.
8. Five rules that follow from the above
Decide whether the quantities are binding before asking for tenders, because silence places the risk on whoever does not know they are carrying it. The decision belongs in the conditions.
Ask for unit prices, not costs, because a selling price is negotiable and a purchase price is not. That boundary is worth respecting.
Compare the total at equal content, not lines one by one, because the margin is unevenly spread across them. A difference in a line shows nothing about cost.
Track the obligation, not the amount paid, because an approved but uninvoiced variation is already a cost. Payment always lags the commitment.
Agree how variations will be priced before the works begin, because a variation during construction is not in competition. Afterwards there is no basis for comparison.
Why this guide does not state prices
A deliberate choice, of the same kind as in the energy performance guide. The structure is settled beforehand, not after.
Construction prices change and published references often come from marketing material. A wrong price expectation is worse than no price, because it leads to a wrong decision and lends that decision a feeling of certainty.
The guide therefore addresses method, not price level. Orders of magnitude for construction cost are covered in a separate guide.
What this guide does not cover
Orders of magnitude for construction cost and price indices are covered in a separate guide, as are public procurement, building permits, energy performance and renovation. This guide concentrates on structure.
Summary
A construction company calculates twice: a budget for itself and a tender for the client, and the second is usually less detailed than the first. The margin is not spread evenly across the lines, so comparing them compares pricing strategy rather than costs. Estonia has had a construction cost classification standard for more than twenty years, and the centre of gravity in budgeting is quantity, not price.
A client can require three things that reveal no margin: a common structure, quantities and unit prices. All three already exist within the company, and according to professional sources it is the client's requirement that is the lever towards a common tender form.
This guide offers professional orientation as at the date of verification. It replaces neither a quotation nor the assessment of a competent specialist.