CIDB Grading Explained: What Grades 1 to 9 Mean

Bid for a public sector contract above your CIDB grade and your tender is set aside before anyone reads your price. Your grade decides which contracts you can bid for, and your evidence decides how fast you can move up. Many contractors, even experienced ones, are unsure what their grade allows or what the cidb actually looks at when they apply to upgrade.

This guide explains what CIDB grading is, how classes of works and grades fit together, what each grade allows, how the cidb sets your grade, how to plan an upgrade and how tender evaluators check your grading.

What Is CIDB Grading?

CIDB grading is the system the Construction Industry Development Board uses to rank contractors from Grade 1 to Grade 9 by the largest contract value they can take on. Each grade is linked to a class of works, such as general building or civil engineering. Public sector clients use the grade to decide who may bid for a contract.

The cidb is a statutory body set up under the Construction Industry Development Board Act 38 of 2000. It keeps the national Register of Contractors. When you register, you apply for a grade in each class of works you want. The result is your grading designation, written as the grade number followed by the class code. For example:

3GB means Grade 3 in general building.
5CE means Grade 5 in civil engineering.

Registration and grading happen together. You apply for a specific grade when you register, and you apply again when you want to move up. For the step-by-step application, see our guide to the CIDB registration process.

Grading serves clients and contractors. Clients get a quick risk filter: a contractor with the right grade has shown the financial and works capability for that size of contract. Contractors get a clear path to grow, one grade at a time.

What Are the CIDB Classes of Works?

A class of works describes the type of construction you are graded for, and each class carries its own grade. You can hold Grade 6 in general building and Grade 2 in electrical works at the same time. The class on your registration must match the class the tender asks for, or you are not eligible.

Code	Class of works	Typical scope
GB	General building	Houses, housing projects, schools, clinics, commercial buildings
CE	Civil engineering	Roads, stormwater, water and sewer networks, bridges
EB	Electrical works (building)	Electrical installations in buildings
EP	Electrical works (infrastructure)	Power lines, substations, street lighting
ME	Mechanical engineering	HVAC, lifts, pumps, mechanical plant
SB to SQ	Specialist classes	Specific trades such as piling, demolition, asphalt or fencing

Source: cidb, Register of Contractors overview, checked 08-10-2026.

Residential builders and developers mostly work in GB. Estate infrastructure, such as internal roads and services, is usually tendered under CE. If civil works are your main business, our sister product covers that side in its civil engineering software guide.

Register in a new class only when you have completed work you can prove in that class. A class with no evidence behind it will stay at Grade 1.

What Does Each CIDB Grade Allow?

Each grade sets the upper limit of the tender value you can bid for, from R500,000 at Grade 1 to no limit at Grade 9. These limits come from Regulation 17 of the CIDB Regulations (Table 8), as amended in 2019. The table below summarises them with the kind of work each grade usually covers.

Grade	Tender value limit	Typical work in GB
1	R500,000	Repairs, small renovations, maintenance
2	R1,000,000	Single houses, larger renovations
3	R3,000,000	Small housing phases, small commercial buildings
4	R6,000,000	Multi-unit housing, schools, clinics
5	R10,000,000	Larger housing projects, municipal buildings
6	R20,000,000	Large residential and commercial developments
7	R60,000,000	Major developments, complex multi-trade projects
8	R200,000,000	Very large public and private programmes
9	No limit	The largest national projects

The “typical work” column is illustrative. The value limit is what counts. For the detailed reference with fees and upgrade notes per grade, see our CIDB grading table with tender limits.

In practice, the grades group into four stages:

Grades 1 and 2: entry. Small contracts, light evidence requirements. Grade 1 registers online with no track record. This is where most new builders start and learn to document every job.
Grades 3 and 4: established small contractor. The step to Grade 3 is where many contractors stall, because the cidb now expects proper financial statements and a completed contract of real size in the class.
Grades 5 and 6: mid-market. Contracts of R10,000,000 to R20,000,000 need site management, cost control and a strong balance sheet. Clients at this level often add their own requirements, such as quality or safety systems.
Grades 7 to 9: large contractors. These grades need significant capital and a record of large completed contracts. The largest public programmes sit here.

How Does the CIDB Decide Your Grade?

The cidb grades you on two things: financial capability and works capability in the class of works you apply for. Financial capability looks at your turnover and available capital. Works capability looks at the largest contract you have completed in that class. Both must support the grade you apply for.

Financial capability. Your annual financial statements show turnover and available capital. The higher the grade, the more formal your statements need to be. A business that trades at a loss or has thin capital will struggle to move up, even with good projects behind it.

Works capability. The cidb wants proof that you have completed a contract of a certain size in the same class. Strong evidence includes:

The signed contract or appointment letter
A completion certificate or final payment certificate (JBCC, NEC or GCC)
A reference letter from the client or principal agent
The final account showing the contract value

Other things matter to your business but are not CIDB grading criteria. B-BBEE status, for example, affects your preference points at tender stage. Read our B-BBEE construction sector code guide to see how that works. ISO certification or specific staff may be required by a client in a tender, but they do not set your CIDB grade.

How Do You Upgrade Your CIDB Grade?

You upgrade by applying to your cidb provincial office with new financial and works evidence that supports the higher grade. Upgrades are never automatic. The application is the easy part. The real work is building three streams of evidence during the year, so that your pack is ready when your numbers qualify.

Build three evidence streams

Evidence stream	What it proves	What to keep, project by project
Delivery	You complete work of this size in this class	Site diaries, progress photos, completion certificates, client references
Commercial	You manage money and contract changes properly	Payment certificates, variation orders, final accounts
Compliance	Your business is in good standing	Tax Compliance Status, CSD profile, CIPC record, B-BBEE certificate, insurance

Most upgrade delays come from gaps in one of these streams. A project was finished, but nobody filed the completion certificate. Variations were agreed on WhatsApp, so the final account cannot be explained. The company name on the bank letter does not match the CSD record. Each gap means a query, and each query means weeks lost.

The fix is to treat evidence as part of delivery. File the completion certificate the day you receive it. Keep a daily site diary. Record every variation in writing. Software that ties documents, site diaries, variation orders and payment certificates to each project makes this routine. Wakha does this for residential builders and developers, and its autocompliance tracker flags expiring documents before they block an application.

Plan your pipeline toward the next grade

The fastest route to an upgrade is a pipeline of in-grade contracts that sit close to your current limit. A Grade 3 contractor who completes a R2,800,000 GB contract builds better upgrade evidence than one who completes five R400,000 jobs. Choose tenders with your next grade in mind.

Submit the upgrade application

Check that your latest financial statements are signed and support the new grade.
Assemble works evidence for your largest completed contract in the class.
Confirm that your identifiers match across CIPC, CSD, SARS and your bank.
Apply to your provincial office and pay the admin fee for the new grade.
Answer queries quickly, using the same identifiers as the rest of the pack.

The cidb’s standard for Grades 2 to 9 is up to 21 working days, once the pack is complete.

Managing CIDB compliance across live projects? Wakha keeps each project’s documents, completion certificates and compliance evidence in one place, ready for your next upgrade or tender: see a product demo.

How Do Tenders Check Your CIDB Grade?

Evaluators check your grade at the first gate, before price or functionality is scored. They compare your grading designation with the minimum stated in the tender data. If your grade or class does not match, or your registration is not active, the bid is not evaluated. A low price does not help.

What the evaluator checks	What it means for you
Grade vs the tender value	The tender states the minimum grade, based on the client’s estimate of the contract value. Read how the tender defines that value.
Class of works vs scope	A GB grade does not qualify you for a CE tender, even for a small one.
Registration status at closing	Your grading must be active on the register. A suspended or lapsed grade fails.
Identifiers vs CSD	The name and registration number must match your CSD profile and other returnables.
Joint venture rules	If the tender allows joint ventures, it states how the partners’ gradings are assessed.

Before every bid, run a short pre-bid check: grade, class, registration status and identifiers. It takes five minutes and avoids the most common disqualification. Our construction tender compliance checklist covers the other returnables.

Subcontracting does not change your eligibility. The grade that counts is the grade of the bidding entity. Subcontractors on public work usually need their own appropriate registration too. Main contractors and developers should vet them; see how in our guide to vetting subcontractors by CIDB grade.

Common CIDB Grading Mistakes

Most grading problems come from poor records and poor timing, not from a lack of skill on site. The mistakes below cost contractors tenders and slow down upgrades. Each one is easy to fix once you know it is there.

Bidding outside your grade or class. Always check the minimum grade and class before you spend time pricing.
Letting the annual update slip. Grades 2 to 9 need an annual update and fee. Two years without one and the grade is suspended.
Applying to upgrade too early. If your largest completed contract does not support the new grade, the application will fail. Wait until it does.
Losing completion evidence. A job without a completion certificate barely counts toward an upgrade.
Mismatched identifiers. Old trading names or missing “(Pty) Ltd” on documents cause queries in both upgrades and tenders.
Ignoring cash flow. A grade tells you what you may bid for. It says nothing about the cash you need to fund the job. Bidding at the top of your grade without the working capital to fund it is a common route to trouble.

The Bottom Line

Your CIDB grade is a summary of your evidence, so the way to a higher grade is better evidence, kept all year. The value limits are fixed by the CIDB Regulations, from R500,000 at Grade 1 to no limit at Grade 9. What you control is how quickly you can prove you belong in the next band.

Pick the class of works that matches your market. Most residential builders and developers live in GB. Target in-grade contracts close to your limit. File completion certificates, payment certificates and variations as you go. Keep your annual update, Tax Compliance Status and CSD profile current. Check grade, class and status before every bid. Contractors who do this upgrade on their own schedule. Those who do not end up rebuilding their history from old emails every time a bigger tender appears.

Frequently Asked Questions

What is CIDB grading?

CIDB grading ranks South African contractors from Grade 1 to Grade 9 by the largest tender value they may bid for in a class of works. Grade 1 allows tenders up to R500,000 and Grade 9 has no limit. Public sector clients use the grade to decide who is eligible for a contract.

What is the tender value limit for each CIDB grade?

Under Regulation 17 of the CIDB Regulations (Table 8, as amended in 2019), the limits are: Grade 1 R500,000, Grade 2 R1,000,000, Grade 3 R3,000,000, Grade 4 R6,000,000, Grade 5 R10,000,000, Grade 6 R20,000,000, Grade 7 R60,000,000, Grade 8 R200,000,000 and Grade 9 no limit.

Can I bid above my grade if I plan to subcontract?

No. Eligibility is based on the grading of the entity that submits the bid. Subcontracting part of the work does not raise your grade. If a tender allows joint ventures, it sets out how the partners’ gradings are assessed, and that is a separate route.

Can I have different grades for different classes of works?

Yes. Each class of works is graded on its own. A builder can hold Grade 5 in general building (5GB) and Grade 2 in electrical works (2EB). Each grade depends on your completed contracts and capability in that class.

How long does it take to upgrade my CIDB grade?

The cidb’s processing standard for Grades 2 to 9 is up to 21 working days once your pack is complete. Building the evidence takes much longer. Most contractors need at least one completed contract close to the next grade’s range before an upgrade succeeds.

What happens if I do not do my annual update?

Grades 2 to 9 must be updated every year and the annual fee paid. If a grade is not updated for two consecutive years, the cidb suspends it. A suspended contractor does not appear as active on the register and cannot tender until the grading is restored.

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