PVC Pipes: Sch 40 PVC Pipe Dimensions

PVC pipe sizes and dimensions are categorized into three major segments schedule 40, 80, and 120; here, I will discuss PVC schedule 40 pipe sizes and dimensions.

Sch 40 PVC Pipe Dimensions

Schedule 40 PVC Pipe Dimensions Table

Nominal Pipe Size Outside diameter Average I.D. Min. Wall Nominal wt./ft. Maximum W.P PSI
1/8″ 0.405 0.249 0.068 0.051 810
1/4″ 0.54 0.344 0.088 0.086 780
3/8″ 0.675 0.473 0.091 0.115 620
1/2″ 0.84 0.602 0.109 0.17 600
3/4″ 1.05 0.804 0.113 0.226 480
1″ 1.315 1.029 0.133 0.333 450
1-1/4″ 1.66 1.36 0.14 0.45 370
1-1/2″ 1.9 1.59 0.145 0.537 330
2″ 2.375 2.047 0.154 0.72 280
2-1/2″ 2.875 2.445 0.203 1.136 300
3″ 3.5 3.042 0.216 1.488 260
3-1/2″ 4 3.521 0.226 1.789 240
4″ 4.5 3.998 0.237 2.188 220
5″ 5.563 5.016 0.258 2.874 190
6″ 6.625 6.031 0.28 3.733 180
8″ 8.625 7.942 0.322 5.619 160
10″ 10.75 9.976 0.365 7.966 140
12″ 12.75 11.889 ..406 10.534 130
14″ 14 13.073 0.437 12.462 130
16″ 16 14.94 0.5 16.286 130
18″ 18 16.809 0.562 20.587 130
20″ 20 18.743 0.593 24.183 120
24″ 24 22.544 0.687 33.652 120

Having detailed knowledge about the dimensions is extremely important if you deal with anything related to PVC. However, I admit that it is a challenging process, often confusing to the point you don’t even know what to do.

Interesting Read – PVC Pipes: Schedule 40 VS 80

What is Pipe Scheduling? 

Scheduling is a process for determining the measurement of PVC pipes, and take note that it has nothing to do with the human concept of time management. Instead, scheduling is a fabrication plan utilized to determine a plumbing material’s wall thickness. In simple language, a pipe schedule is a fixed standard for how thick a pipe’s wall must be established on how large or wide the pipe is in diameter.

Hypothetically, a pipe schedule is a table with complex data prefigured with standardized textbook values for pipes and fittings. For instance, manufacturers looking to produce 2″ Schedule 40 PVC pipe will know the exact thickness of the pipe wall categorized as a 2″; Schedule 40 PVC pipe.

On the surface, as the pipe schedule value increases, the pipe wall thickness also zips. The same phenomenon is noticeable in Sch 40 and 80 pipes. That means Schedule 80 pipes will always have thicker sidewalls than Schedule 40 when utilized for a specific PVC pipe size or diameter. The pipe’s wall thickness is the main criterion that changes and corresponds with the pipe’s consistently changing Inner diameter (ID). Therefore, pipe schedules usually don’t affect Nominal Pipe Size (NPS) and Outer Diameter (OD).

How to Apply Scheduling to Determine Pipe Sizes and Dimensions?

As established earlier, Pipe scheduling is more important than people give it credit for. It is utilized by construction and engineering firms, contractors, plumbing handlers, and installers. A pipe schedule is a fantastic way to understand the pipe’s suitability for its intended application. While evaluating and estimating plumbing components and materials, professionals will go for the pipe size and schedule rating designed to meet or exceed the planned application’s demands.

In layman’s terms, Pipe scheduling is the key to determining which plumbing equipment is best for the job. To get the best results in plumbing situations, it is necessary to analyze and understand pipe thickness, pressure ratings, chemical suitability, and total costs. All these attributes are in line with pipe scheduling ratings.

Fascinating Read  – CPVC VS PVC | Difference Between PVC and CPVC 


Below are the frequently asked questions on schedule 40 pvc dimensions, Lets dig deep to know more.

Is Schedule 40 PVC pipe strong?

Ans. Schedule 40 PVC pipes are strong, rigid, and can handle good pressure, specifically in household applications. However, in applications where more pressure and heat are involved, Schedule 80 pipes will prove to be a better choice. In addition, most PVC pipes have a maximum pressure rating listed on them to make it easier for you.

Can you use Schedule 40 PVC for hot water?

Ans. The answer is no. As PVC is thermoplastic, at one point, it will degrade and break down after it is heated up. Shown the same thing in the above Sch 40 pipe dimensions table. It just so happens that the Schedule 40 pipe’s maximum handling temperature is 140 F°, around the same temperature when hot water reaches most homes.

Is PVC pipe cheap?

Ans. Yes, PVC pipe is quite cheap, and that’s perhaps its biggest advantage over any other thermoplastic material. However, specific pipes’ prices depend on factors like thickness, pressure ratings, chemical suitability, etc.

Which Pipe is stronger, PVC or ABS? 

Ans. ABS pipes are stronger than PVC pipes in brute strength and shock resistance. However, PVC steals the show for flexibility. ABS is better for underground applications as it can handle extreme cold and warp if exposed to direct sunlight. For home applications, PVC is a better choice as it is soundproof and muffles the sound of water.

How long is a normal PVC pipe?

Ans. All the PVC pipes sold are within 10 to 20 feet long.

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Final Thoughts

To sum up, Schedule 40 PVC pipe dimensions is a highly versatile and commonly employed piping material utilized in numerous applications. Familiarizing oneself with its dimensions is crucial for selecting the suitable size and guaranteeing correct installation. Armed with this information, you can confidently choose and install Schedule 40 PVC pipe for your unique requirements, ensuring dependable and secure operation.

Thanks for reading. Kindly share your thoughts and reviews in the comment section.

Have a Fantastic day.

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