CSI Division Plumbing is a division in CSI MasterFormat. Architects, engineers, and cost estimators use the masterformat as a standard to organize construction-related information. CSI MasterFormat streamlines construction projects through effective planning and communication.

There are 50 (0-49) divisions of masterformat, each representing a part of construction such as electrical, finishes, equipment etc. The CSI Division Plumbing is numbered 22. It is further divided into subgroups and subsections.

Understanding Master Format Divisions

MasterFormat can seem overwhelming when you take a look at it the first time. All the numbers and divisions may seem like it’s complicating things even more. On the contrary, the main purpose of masterformat is to organize things. 

So let’s take a look at the levels it is divided into.

Levels of MasterFormat Divisions

• Level 1

Level one is the highest level of the hierarchy. It is the number of divisions as we know it. The divisions from 0-49 are Level 1 of the CSI format.

• Level 2 

Each division is further broken down into sections. These sections are the level 2 division. In the case of CSI Division Plumbing 22 is level one but 22 10 50 is Plumbing Pipes and Tubes. Don’t get confused by these digits, we’ll shed light on them as well.

• Level 3 

The sections are further divided into subsections known as level 3 in the hierarchy. For example, level 2 CSI Division Plumbing Pipes and Tubes 22 10 50 is categorised into subsections Plumbing  22 10 53 Metallic Pipes and Fittings, 22 10 55 Plastic Piping Valves and Fittings. 

Number Specifications of MasterFormat

By now you may have noticed that there is a pattern to the numbers. 

It is important to understand number specifications to get used to the format.

Let’s take an example of 22 30 51 ADA Protective Under Sink Pipes.

• 22 represents the CSI Division Plumbing. It shows that whatever falls under 22 is going to be related to plumbing 

• 30 is the level 2 of division. It represents plumbing equipment. So any division starting with 22 30 falls within the plumbing equipment category. 

• Finally, the number 51 is the level 3 of division. 22 30 51 is ADA Protective Under Sink Pipes

Three-Part Specifications 

MasterFormat consists of three-part specifications where the details within each section are arranged as three sections. This division is useful for Plumbing Estimation and project management as it helps to narrow down the details of the plumbing system.

Part 1: General

The general part consists of information such as submittals, standards such as UL, scope of work, warranty etc. 

Part 2: Products

The product part contains information about the product such as manufacturing, quality of product, finishes etc. Construction Estimating Services Company can greatly benefit from it to create accurate estimates. For example, Bidding Estimate is one of the leading cost-estimating agencies that takes help from MasterFormat to organize the data.

Part 3: Execution Section 

The execution section contains all the details about installation. One can consult with the execution section before they start the construction process. It will help to effectively plan and strategies.

CSI Division Plumbing

22 00 00 – Plumbing

• 22 05 00 – Basic Materials and Methods

22 05 10 – Valves (Metallic)

22 05 20 – Hangers, Struts and Supports

22 05 50 – Sound, Vibration and Seismic Control

22 05 60 – Identification

23 05 70 – Pipe Concealment

23 07 50 – Plumbing Insulation

• 22 09 00 – Instrumentation and Control for Plumbing

• 22 10 00 – Plumbing Piping and Pumps

22 10 50 – Plumbing Pipes and Tubes

22 10 53 – Metallic Piping & Fittings

22 10 55 – Plastic Piping, Valves and Fittings

22 10 57 – Corrosion Resistant Piping, Valves and Fitting

• 22 1100 – Facility Water Distribution

22 11 40 – Piping Specialties

22 11 50 – Plumbing Pumps

• 22 12 00 – Facility Water Storage Tanks

• 22 13 00 – Facility Sanitary Sewerage

22 13 20 – Sanitary Waste Piping Specialties

22 13 30 – Interceptors and Separators

22 13 40 – Sanitary Sewerage Pumps

22 13 47 – Vacuum Plumbing Systems

22 13 60 – Septic Tank and Leach Field Systems

• 22 14 00 – Facility Storm Drainage

22 14 20 – Storm Drainage Piping

22 14 30 – Facility Storm Drains

22 1435 – Roof Drains

22 14 40 – Sump Pumps

• 22 30 00 – Plumbing Equipment

22 30 50 – Plumbing Equipment Specialties

22 3051 – ADA Protective Under Sink Pipe Covers

• 22 31 00 – Domestic Water Softeners

• 22 32 00 – Domestic Water Treatment Equipment

22 32 40 – High Purity Water Systems

• 22 33 00 – Domestic Water Heaters

22 33 10 – Domestic Water Heaters

22 33 20 – Tankless Water Heaters

• 22 35 00 – Indirect-Fired Water Heaters

• 22 40 00 – Plumbing Fixtures

• 22 42 00 – General Plumbing Fixtures

22 42 10 – Plumbing Fixtures

22 42 40 – Faucets

22 42 45 – Laboratory Faucets

22 42 50 – Plumbing Fixture Specialties

22 30 51 – ADA Under Sink Pipe Insulation

22 42 70 – Composting & Incinerating Toilets

• 22 43 00 – Healthcare Plumbing Fixtures

• 22 44 00 – Food Service Fixtures

• 22 45 00 – Emergency Plumbing Fixtures

• 22 46 00 – Security Plumbing Fixtures

• 22 47 00 – Drinking Fountains – Interior & Exterior

• 22 48 00 – Residential-Specific Plumbing Specialties

22 48 10 – Shower Bases

22 48 20 – Linear Shower Drains

22 48 50 – Specialty Sinks

22 48 70 – Whirlpool Bathtubs

• 22 49 00 – Prefabricated Modular Bathrooms

• 22 50 00 – Pool and Fountain Plumbing Systems

• 22 60 00 – Gas & Vacuum Systems

22 6100 – Compressed Air

• 22 63 00 – Medical Gas Systems

• 22 65 00 – Firefighter Breathing Air System

Final Words

To wrap up the article, CSI Plumbing Division has become an integral part of construction. CSI masterformat is now seen as a requirement in most construction projects. It is so popular that it is known as the Dewey Decimal System of Construction. So if you are new to the construction industry, you need to familiarise yourself with MasterFormat to streamline your construction processes.