The Most Common PVC Pipe Size

PVC pipe is a widely-used plastic in plumbing and drainage applications due to its lightweight, flexible nature and safety for indoor as well as underground use.

The two most widespread PVC pipe sizes are schedule 40 and 80. These can be used for drain lines as well as low-pressure water flow systems.


PVC pipe is the most commonly used plastic type by plumbers to construct sewer and water mains. Its durability and smooth inner surface allow water to move smoothly through it.

The most widely-used pvc pipe size is 12″. This dimension can be used for collecting water from kitchen sinks, bathroom vanities or tubs.

It is also commonly employed as drainage pipes for washing machines and shower stalls, as well as vertical stacks in kitchen sinks.

To measure a PVC pipe, position it face-down on a hard surface and use either a tape measure or ruler to measure from one outer edge to another. Complement your measurement with the average outside diameter (OD) listed on the chart below to get an exact size for your project.


The most widely-used pvc pipe size is 14″. This dimension works well for plumbing projects requiring some flexibility but also needing a strong enough material to withstand stress.

Depending on the application, you may want to opt for thinner wall PVC pipe like Schedule 40 instead of thicker ones like Schedule 80. This will save weight and money while still enabling you to construct a stable framework.

Most often, schedule 40 or 80 pipe is the ideal option for your project. However, it’s essential to consult your local building codes before selecting a specific type of pipe for construction purposes.


The most commonly used pvc pipe size is 16″. This standard-sized pipe connects homes to the sewer system and can also be used for draining shower stalls, washing machines and kitchen sinks.

Pipe size is measured by its internal diameter (ID) and wall thickness. ID measures from the outer wall to the inner wall, with wall thickness increasing as pipe size increases.

Schedule 40 pipes have thinner walls than their schedule 80 counterparts and can be used in high-pressure applications like chemical processing and industrial plating.

When selecting the ideal pipe, it’s essential to be aware of its schedule and pounds per square inch rating. Doing this can help avoid plumbing issues, cost overruns, and project delays.


The most widely-used pvc pipe size is 18″. This dimension is ideal for most residential plumbing applications.

PVC pipes are a type of plastic pipe commonly used in sewer and water mains as well as irrigation systems. They’re lightweight and easy to install, making them an ideal choice for many industries.

They feature a smooth surface that helps water runoff freely. They come in an assortment of sizes and shapes for convenient convenience.

PVC pipes are measured by their internal diameters, which may be either nominal or copper tube size (CTS). Typically light gray in color with a technical description printed on them, these pipes come in different lengths.


The most widely used pvc pipe size is 20″. This pipe size works great for residential homes and other small plumbing projects, as well as sewer drain lines.

This pipe is incredibly strong, stiff and durable – ideal for construction projects where strength is paramount.

Metal piping, however, is more susceptible to thermal expansion or contraction. This makes it a perfect option for drainage, irrigation and cold-water systems.

PVC pipes come in both nominal pipe sizes (NPS) and copper tube sizes (CTS). Their technical specifications are printed on their sides for convenient verification.


PVC pipes are a reliable and convenient option for drainage and plumbing projects. Not only are they lightweight and easy to install, but their durability also makes them an attractive option.

The most widely-used pvc pipe size is 22”. This dimension works well for residential plumbing needs.

This standard size drain is used to empty kitchen sinks, bathroom vanities and tubs. It’s also great for draining washing machines and shower stalls.

It is essential to be aware that a PVC pipe’s outside diameter (OD) may vary slightly depending on the thickness of its inner walls.

Plumbing professionals often struggle to identify the proper piping size. To guarantee accuracy, plumbers should always check the ID rather than OD of a pipe to guarantee they use the appropriate size. Doing this helps avoid cost overruns or misuse as well as potential plumbing malfunctions.


PVC pipe is an ideal option for plumbing applications due to its ease of working and ability to fit into tight spots where metal piping cannot go.

The most widely-used pvc pipe size is 24 inches. This measurement works well for both residential and commercial projects alike.

Take accurate measurements with a tape measure and compare them with the average OD from this chart to get the correct size for your project.

Schedule 40 PVC pipes are robust and stiff, resistant to pressure. They’re perfect for drainage and irrigation systems as well as withstanding high temperatures caused by heated water – making them popular in septic or city sewer lines. Furthermore, these PVC pipes boast incredible longevity; many can last years!


The most commonly available pvc pipe size is 26″, or its metric equivalent. This is the largest available diameter for commercial grade products.

This is the most commonly used pipe diameter for home use. You can find it in most home improvement stores, usually accompanied by a bell or pipe fitting to facilitate installation.

This high quality and safe material should not be confused with the softer and more fragile PVC. The most common application is water supply and sewer drainage systems – in Europe for plastic irrigation pipe, while in America it’s used primarily for sewer mains. Cutting and shaping this pipe requires only power tools; plus it is lightweight and eco-friendly as well as being one of the least expensive options available for your piping requirements.


When planning a plumbing project, it is essential to know the appropriate pvc pipe size. Doing so will save time, money and materials in the long run.

PVC pipe sizes and dimensions vary based on the material, schedule, and class of pipe. These factors determine a pipe’s strength and flexibility.

PVC pipes can be divided into three distinct schedules. These are schedule 40, 80, and 120.

Schedule 40 pipes are thinner than their two counterparts, making them perfect for drainage systems and water/gas lines around homes. Furthermore, they can withstand considerable pressure.

Schedule 40 pvc pipe is commonly used for sewer drains in homes. It also serves as a support pipe for potable water lines, pools, spas and gas lines.


The most widely-used pvc pipe size is 30″. While it’s economical, it won’t withstand prolonged pressure. Therefore, it’s wise to check the water pressure in your home before beginning any plumbing project.

When selecting a type of pipe for your application, there are numerous types to choose from – each with its own distinct features. To determine which material is ideal for your needs, reach out to an expert like Total Piping Solutions Inc. We offer professional guidance with every piping project! To start, take a look at our PVC Pipes and Fittings page for popular sizes as well as our FAQ section with any queries you may have. With accurate information at your fingertips, you can make an informed decision about which PVC pipe to purchase; using the correct one will guarantee success while saving both time and money in the long run.

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