CIDB grades and the tenders you may bid for

Which South African public sector tenders a contractor can bid for at its CIDB grade and class of works, and when a client may look above the limit.

By Achekam · 11 October 2026 · 4 min read · For Construction businesses in South Africa

A tender appears on the eTenders portal for a municipal clinic upgrade. The scope suits the business perfectly, the site is close by, and the estimator thinks the job can be priced competitively. Then someone reads the tender data: it calls for a CIDB grade the business does not hold in that class of works. Is it worth bidding anyway?

For South African contractors chasing public sector work, the CIDB grade is the first filter on every tender. Understanding exactly what it allows, and the narrow exceptions around it, saves a great deal of wasted estimating time. This article explains the tender value limits, what clients must state, the exceptions the CIDB describes, and how to record the bid decision.

The tender value limit for each grade

The CIDB says each grade carries a maximum tender value. At the time of writing, the limits on its register overview are:

The CIDB says these tender value limits are reviewed periodically, so check its overview of the Register of Contractors before relying on a figure for a specific bid.

The grade is held per class of works. A contractor registered at grade 6 for general building may hold a lower grade, or no grade, for civil engineering. The limit that matters is the one for the class the tender calls for.

What public clients must do

The rules bind the client as well as the contractor. The CIDB says the Construction Industry Development Regulations bar public sector clients from awarding contracts to unregistered contractors, or contracts above the contractor's grade tender value limit, or outside its registered class of works.

The CIDB also says public sector clients must state the required CIDB grading in the tender data and the advert, and only consider contractors meeting that grade when evaluating tenders. That is why the grade appears at the top of every construction tender: it is the client's first evaluation step, before price or functionality.

Registering after the closing date

There is one timing exception. The CIDB says a client may not exclude a tender from an unregistered contractor that is capable of being registered in the required grade, provided the contractor is registered within 21 working days after the tender closing date.

That window helps a contractor that already meets the requirements for the grade but has not yet completed registration or an upgrade. It does not help a contractor that does not meet them. If you intend to rely on it, have the application ready to lodge immediately.

Potentially emerging status and the margin above the limit

Two further provisions allow a client some flexibility, but both are the client's choice, not the contractor's right.

Potentially emerging status. The CIDB says a client may use a contractor's potentially emerging (PE) status to award a contract one grade above its limit, but only if the client has a targeted development programme and gives the contractor financial, management or other support.

A margin above the limit. The CIDB recommends that a tender exceeding the contractor's tender value limit by a margin of 10 to 15% may be considered, provided the award imposes no undue risk and the client assesses the contractor's capacity.

Read both carefully before bidding on the strength of them. Neither applies automatically, and a tender evaluated strictly on the advertised grade may not use either.

Finding tenders and deciding whether to bid in Achekam

Achekam's tender scout reads live adverts from the National Treasury eTenders public data feed, and from any public RSS or Atom feed the business adds. Staff can also enter a tender by hand with its documents. Sources such as CIDB, Transnet and Eskom are shown as not connected, so tenders from those portals need to be entered by hand. An RSS tender with no closing date is given one 30 days after publication, so check the real closing date in the documents.

Every bid or no-bid decision must give a reason, and a decision to bid on a tender of R5 million or more must name an active partner as approver. Recording "no bid: grade 5 required in civil works, we hold grade 4" is useful in itself: over a year, those reasons show how much work the business is missing because of its grade, which is the argument for applying for the next one. The disqualification check on the tender page is advisory and does not stop a decision to bid, so the grade question still needs a person's judgement.

When the business does bid, the price is built line by line as cost plus markup from the business's rate card and locked as a version. A bill of quantities read in by AI changes the price only when a person applies it.

A pre-bid grade check

Before an estimator spends a day on a tender, confirm:

1. The class of works the tender calls for.
2. The grade required in the tender data.
3. The grade the business holds in that class, and that the registration is current.
4. The expected tender value, against the grade's limit.
5. Whether the tender mentions PE status or a margin, and on what terms.

For lodging the bid itself, see lodging a tender bid; for what moving up a grade requires, read what the CIDB reads from your financial statements and proving CIDB track record.

The grade decides which doors are open. Knowing exactly where they are saves the business from knocking on the closed ones.

General guidance only, not advice on your own circumstances. Tax and payroll rules change: check the current position with the authority or your adviser.