At LESSO America, we work with professionals across the plumbing and construction industries who rely on dependable materials for consistent, long-term performance. Schedule 40 plumbing has become a common specification for many of these applications due to its strength, versatility, and ease of installation. Understanding what sets Schedule 40 apart can help contractors make the right call when designing and building new systems.

What Does “Schedule 40” Really Mean?

When it comes to plumbing, “schedule” refers to the wall thickness of a pipe. The higher the schedule number, the thicker the pipe wall. Schedule 40 is one of the most frequently used classifications, balancing strength with cost-effectiveness. It’s suitable for water distribution, drainage, and even some pressurized applications depending on the pipe size and operating temperature.

Schedule 40 pipes and fittings are typically white PVC or gray CPVC, both offering excellent corrosion resistance and a long service life when installed correctly. At LESSO America, we provide a full range of Schedule 40 products that align with ASTM standards and meet the needs of today’s American job sites.

How Schedule 40 Compares to Other Options

Contractors often ask how Schedule 40 compares to Schedule 80. While both types are used in similar environments, there are key differences:

• Wall Thickness: Schedule 80 has a thicker wall than Schedule 40, which increases its pressure rating.

• Cost: Schedule 40 is typically more affordable and easier to work with due to its lighter weight.

• Use Cases: Schedule 40 is commonly used for residential and light commercial plumbing, irrigation, and drain-waste-vent (DWV) systems. Schedule 80 is preferred when higher pressure or mechanical strength is needed.

Choosing between them depends on your system’s pressure and structural requirements. In many cases, Schedule 40 plumbing offers the right balance of performance and efficiency.

Common Applications for Schedule 40 Plumbing

At LESSO America, we see contractors across the U.S. using Schedule 40 materials in a wide variety of settings:

Residential Water Supply Lines: Reliable for both cold and hot water systems.

Irrigation Systems: Ideal for agriculture and landscaping projects where corrosion resistance is essential.

Vent and Drain Lines: Effective in DWV systems that require smooth flow and chemical resistance.

Light Commercial Builds: Used in many office and retail spaces with moderate pressure needs.

Schedule 40’s compatibility with a wide range of fittings and its ability to handle most standard plumbing pressures makes it a smart choice across these applications.

Our Commitment to Reliable Supply

We know that quality and consistency matter on every project. At LESSO America, we offer Schedule 40 piping and fittings that are tested, certified, and readily available through a well-established distribution network. Our support team works closely with contractors to provide technical guidance, product specs, and order fulfillment when it's needed most.

Conclusion

Schedule 40 plumbing has earned its place as a standard in both residential and commercial construction across America. Its durability, compatibility with various fittings, and cost-efficiency make it a practical solution for contractors seeking dependable results.

When your next project calls for Schedule 40, you can count on LESSO America to deliver what you need, when you need it with the quality and service you expect.