How to get your C-61 license for raised floor construction work.

Raised Access Flooring Contractor: C-61/D-10 License

Table of Contents


What is a Raised Access Flooring Contractor?

A raised access flooring system. typically used to keep wiring and computing data cool within an office building

An elevated floors contractor installs wood or metal framed elevated computer flooring systems. This work does not include the construction of mezzanines – CSLB.GOV

The D-10 license is the classification required in the state of California for anyone looking to bid on raised floor systems  projects where the cost of labor and materials exceeds $500

C-61 Limited Specialty Classification

The C-61 Limited Specialty License is an umbrella term for all licenses that may fall under a more obscure category of construction work.

They cover specific areas of construction and construction-related tasks.  

If your skillset or business is limited to one particular portion of trade work, you could obtain a C-61 limited specialty license to contract over $500 for your services legally.

Typical duties of Raised Access Flooring Contractors

A contractor fixing wires and cabling in an raised floor system

Raised floor systems are typically found in modern office buildings.

  • Servers, cabling and computing equipment associated with IT data must be housed in cool conditions within a building. 

  • Up until the 1990's office buildings generally housed this equipment in a separate room. 

Today, the common practice is to house wiring and computing equipment in a raised access floor system.

C-61 / D-10 license for elevated flooring contractor duties include:

  • Installation of wires and cables
  • check Fabrication and design of raised access flooring systems
  • check ​​​​Use of steel-clad particleboard, carpet tiles, laminates, marble, and stone 
  • Installation and troubleshooting of IT Data Centers
  • Inspecting HVAC ducts and proper air distribution
  • check Regular maintenance and inspection of functionality and safety
  • check  Job site evaluation, cost calculation and blueprint reading
  • check Maintaining Job-site and personal safety

Recommended Courses

What is a Subcontractor?

In a construction setting, a General Contractor may hire a raised access flooring contractor specifically for their expertise and equipment.

As a result, a general contractor ensures that this phase of the project is executed correctly.

Learn more about the General Contractor License!

C-10 License, Low Voltage license and Flooring Contractors

Raised access flooring contractors may often also hold the Low Voltage license or C-10 Electrical License if they offer IT or wiring services in addition to the design and installation of raised floor systems. 

While flooring contractors may also hold the D-10 classification if they offer raised system flooring services.


The logo of the CSLB. illustration features a paint brush, hand saw and cement truck with the letters CSLB above in white

The Contractors State License Board (CSLB) is the governing body for all contractors in the state of California. Their sole responsibility is to protect the consumer public. 

They ensure that anyone charging over $500 for construction services is qualified and registered with the state.

The C-61 / D-10  Raised Access Flooring contractor license is issued to contractors by the CSLB. 

EPA Certification

Logo of the united states environmental protection agency

When making alterations to or around structures built before 1978, contractors must know how to contain lead paint if it is present.  

Lead paint can travel miles through air, rest on soil, and enter air ducts causing potentially fatal respiratory damage.

Raised Access Flooring contractors looking to build profitable businesses must position themselves as experts and the authority within their industry. 

Contractors must be a source of information for their clients and community if they want referrals and repeat business. Learn how to get an EPA Certification in 8 hours!

Blue Print Reading Course

a ruler and brown book laying on a desk, image talks about a free construction blueprint reading course for raised access flooring contractors

It is raised access flooring contractors to be able to read designs and symbols on construction blueprints.

If installation or repair is part of a larger project, being able to execute their duties within the larger scope of the job is essential. 

Reading blueprints is an invaluable skill for all tradesmen but can be especially important for elevated flooring contractors.

Check out our Free Blueprint Reading Course!

C-61 / D-10 Contractor License Requirements

Contractors specializing in raised floor systems must prove a minimum of 4 years journeyman level experience and pass a law exam.

To qualify for an exam date you must meet the following requirements:

  • Be at least 18 years of age
  • Have a valid Driver's License or USA Issued Identification
  • Have a Social Security or ITIN #
  • check Not Currently be on probation or parole

You must also have:

  • 4 Years Journey Level Experience 
  • A Qualifying Individual to sign off on your experience
  • A way to prove your experience if the state asks for documentation

What is journey level experience?

Getting a raised access flooring contractor license requires that you have atleast 4 years journey level experience. a construction worker lifting up a large tile to access a raised floor system

Journeyman level experience means that you have worked unsupervised full time for a raised access flooring company, or for a contractor that holds the D-10 License.

  • A journeyman can perform all of the duties associated with his or her trade.

The CSLB will want to see four full-time years over the last ten years. The years do not need to be consecutive, but they do need to be four years in total. 

Signature of a Qualifying Individual

The following people may act as a Qualifying Individual when applying for the Raised access flooring contractor license

  • Licensed General Contractor
  • C-61 / D-10 License Holder
  • Former Supervisor (within the last 10 years)
  • check Fellow Employee (within the last 10 years)
  • check Business Associate
  • check Fellow Journeyman
  • check Union Representative

How to fill out the Contractor License application

In addition, your Qualifying Individual will need to provide a brief but detailed description of your knowledge and skillset.

The way this description is written is critical to whether or not your application gets accepted.

For example: 

“Steve installed our raised floor system” is not descriptive enough.

​The CSLB will want to see: 

“Steve has fabricated raised floor systems using: steel-clad particleboard, carpet tiles, laminates, marble, and stone. He has done cost calculations, inspected wiring and installed data centers” etc.

Most importantly, the description written by your qualifying individual has to include the core skills required for raised access flooring contractors.

Work experience for the Contractor License

You must be prepared to submit documentation supporting the experience you claim to have. The Contractors State License Board gives you a few ways that you can prove your experience which include:

  • Tax Returns
  • Check Stubs
  • Contracts
  • Material Order Invoices or Receipts

The CSLB  receives thousands of applications per month so there is a good chance they won’t document your experience.

However, if you are one of the applicants that get reviewed you will need to be ready to submit something. 

The CSLB does not accept pictures of projects.

Application Processing, Fees and Criminal History

The time it takes to get your application processed and assigned a test date fluctuates throughout the year.

Typically you can expect:

  • 6-8 Week Application Processing Time
  • 3-4 Week wait for an Exam date

I have seen some situations where applicants got their test date sooner and somewhere they got their test date much later.

The most common reasons your application would get held up are:

  1. Time of year (processing time slows down during the holidays) 
  2. Criminal History 
  3. Proving Experience
  4. Mistakes on your application 

Contractor License Costs

The Current CSLB fees are: 

Can you get a Contractors License with a Felony in California?

a wooden gavel and law book laying on top of a white surface, you will want to be 100% honest on your contractor license application

Having a criminal record in no way stops you from getting a raised access flooring contractor License. Thousands of tradesmen get licensed each year in California despite having criminal records.

The key is, to be honest on the application, even if the felony or misdemeanor happened years ago and even if it was expunged.

BE 100% HONEST ON THE APPLICATION, because they will see everything anyway when you do fingerprinting. The CSLB handles criminal records on a case-by-case basis.

Remember, their responsibility is to protect the public. Typically the CSLB is most concerned with Fraud, Embezzlement, and Forgery.

The Contractor License Exam

Contractor licenses are broken down into four categories:

1) A-General Engineering

2) B-General Building

3) C-Specialty classes

4) C-61 / D-Limited Specialty classes

Each category of license except the D-Limited Specialty license class requires that you pass a TRADE exam. C-61 Classification licenses do not have trade portions.

You must only pass a LAW exam. The exam is:

  • 115 Questions on Contractor LAW
  • 3 Hours to complete
  • Multiple choice, taken on a computer
  • check Closed Book

For Study Guides and Online Practice Exams, click here

The Law Examination is divided into eight major sections:

1. Business Organization (10%)

  •  Company organization
  •  Project organization

2. Business Finances (15%)

  • Cash management
  • Budget and planning
  • Taxes
  • Financial reporting

3. Employment Requirements (12%)

  • Employment regulations
  • Evaluation and record-keeping
  • Payroll

4. Bonds, Insurance, and Liens (10%)

  • Bonds
  • Workers’ compensation insurance
  • Liens and other remedies
  • Other insurance

5. Contract Requirements and Execution (23%)

  • Bidding
  • Cost control
  • Contracts
  • Payments

6. Licensing Requirements (8%)

  • Business license
  • Contractor’s license
  • Activity regulation

7. Safety (15%)

  • Training and reporting requirements
  • General safety
  • Hazardous/unknown materials

8. Public Works (7%)

  • Prevailing wage requirements
  • Bonding requirements
  • Insurance requirements

Learn more about Contractor License LAW!

CSLB Test Locations

The CSLB has testing locations in the following cities:

  • Berkeley
  • Fresno
  • Norwalk
  • San Jose

  • Oxnard
  • Sacramento
  • San Bernardino
  • San Diego

  • The CSLB will assign you a testing center based on your location
  •  The test is not available online 
  • The CSLB allows you to bring a pre-approved translator with you 
  • The CSLB will grant you 18 months after your application is accepted to pass the test 
  • You must wait three weeks before retaking the state exam ( $60 per retake )

California Contractors License Exam Prep

A calculator and pencil laying on top of a piece of grid paper with some writing in pen

  • Getting your contractors license for raised floor systems is a smooth process if you have the right information. 

  • It can be confusing to see un-familiar terms used to describe tools or job site practices. The Contractor LAW exam covers a number of different topics.

  • Questions are presented to you as if you are running a large scale remodeling business with multiple employees.

  • Being prepared and knowing what to study is the most important thing you can do in ensuring your success on the contractor license exam.

Construction Apprenticeships

Four construction workers analyzing a construction blueprint. with several tools, including rulers, screwdrivers and pencils laying on a table

If you do not have the experience required to get the C-61/D-10 raised floor systems Contractor license, not to worry! 

Your journey begins here. Generally, someone looking to become a contractor would want to look into an apprenticeship to find an experienced person to work with.

For a detailed explanation on this process, check out my article: Apprentice vs Journeyman!