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Frequently Asked Questions

Wesanco-ZSI Products FAQ:
Your Questions Answered

Wesanco-ZSI delivers reliable support systems for piping, conduit, and equipment across industrial, commercial, and rooftop applications. This FAQ covers the most frequent questions about our strut, clamps, blocks, and custom solutions.

Still need help? Contact Wesanco-ZSI and we'll assist you.


What products do Wesanco-ZSI offer?

Wesanco-ZSI offers a complete line of support and framing products designed for pipe, conduit, and equipment installation. Our product offering includes:

  • Cush-A-Clamp® cushioned clamps
  • Cush-A-Block® rooftop support systems
  • Strut channels (metal and fiberglass)
  • Strut fittings
  • Channel nuts and spring nuts
  • Pipe hangers and riser clamps
  • Beam clamps and brackets
  • U-bolts and clevis hangers
  • Threaded rod and hardware
  • Support kits and pre-assembled systems
  • Custom fabricated framing and rooftop assemblies

These products are designed to provide strong, reliable support across mechanical, electrical, plumbing, and HVAC/R applications.

What industries use Wesanco-ZSI products?

Wesanco-ZSI products are used across a wide range of industries and applications that require pipe, conduit, or equipment support. These include:

  • Commercial and industrial HVAC
  • Data centers and telecommunications infrastructure
  • Food and beverage processing plants
  • Industrial manufacturing and chemical processing
  • Mechanical, electrical, and plumbing (MEP) systems
  • Power generation and utility systems
  • Refrigeration and cold storage
  • Rooftop solar and renewable energy installations
  • Water and wastewater treatment facilities

Our product line includes Cush-A-Clamp® cushioned clamps, Cush-A-Block® rooftop supports, channel nuts, pipe hangers, fiberglass and metal strut, brackets, threaded rod, and a full range of strut hardware and accessories.

What are Wesanco-ZSI pipe clamps and support products used for?

Wesanco-ZSI offers a broad selection of pipe clamps and support products designed for securing mechanical, plumbing, electrical, and HVAC/R installations. This includes Cush-A-Clamp® cushioned clamps, stainless steel U-bolts, riser clamps, clevis hangers, split ring hangers, and strut-mounted hardware. These components are engineered to reduce vibration, isolate noise, and ensure long-lasting, secure pipe and conduit support in commercial and industrial settings.

Cush-A-Clamp® cushioned clamps are widely used in HVAC systems, chilled water loops, hydraulic piping, and electrical conduit installations. Their cushioned insert helps absorb shock and vibration, protecting both the piping and the structure over time.

Wesanco-ZSI also supplies structural supports such as strut channel, brackets, beam clamps, and pipe hangers that enable complete, code-compliant support systems. These products are commonly used in mechanical rooms, industrial plants, and data centers.

In addition, Wesanco-ZSI offers a wide range of threaded rod, fasteners, and strut accessories such as spring nuts, washers, and hardware kits. These components provide critical connection points and load-bearing support for assembling framing systems, suspending piping, and integrating clamps with strut. They are essential for secure and reliable installations across structural, mechanical, and electrical projects.

What is a Cush-A-Block®?

A Cush-A-Block® is Wesanco-ZSI's rooftop support system designed to elevate and secure pipes, conduit, and mechanical equipment above flat or low-slope roofs. It distributes weight evenly without penetrating the roof membrane, helping to protect the surface and reduce the risk of leaks. Cush-A-Block units are often combined with strut channel and clamps to create a durable, adjustable, and weather-resistant rooftop support solution.

How are Wesanco-ZSI rooftop systems used in building applications?

Wesanco-ZSI rooftop support systems are used to elevate and secure mechanical piping, conduit, ductwork, and HVAC units on commercial and industrial roofs. These systems help protect roof membranes by eliminating the need for penetrations and distributing weight evenly across the surface.

Our rooftop solutions are ideal for flat or low-slope roofs and are commonly used in data centers, solar installations, warehouses, and large-scale commercial buildings. When combined with pipe clamps, strut framing, and support accessories, Wesanco-ZSI rooftop systems provide a durable, adjustable, and weather-resistant solution for rooftop equipment installation.

Do you offer fiberglass strut systems?

Yes. Wesanco-ZSI offers a full line of fiberglass strut systems designed for use in harsh and corrosive environments. Made from high-strength, non-metallic materials, fiberglass strut is ideal for applications where metal corrosion, electrical conductivity, or chemical exposure is a concern.

Fiberglass strut is commonly used in wastewater treatment plants, chemical processing facilities, coastal installations, pulp and paper mills, food and beverage plants, and cleanroom environments. It is lightweight, non-conductive, UV-resistant, and maintenance-free, making it a long-lasting alternative to galvanized or stainless steel strut in demanding conditions.

Our fiberglass offering includes channel profiles, fittings, brackets, and accessories—compatible with standard metal hardware for seamless integration. Wesanco-ZSI fiberglass strut systems deliver durable performance while helping reduce total lifecycle cost in corrosive or safety-sensitive environments.

How can I choose the right support product for my application?

Choosing the right Wesanco-ZSI support product depends on factors like the type of piping or conduit, environmental conditions, load requirements, and installation location. Our digital catalog and product filters make it easy to narrow down options by size, material, and application.

For common installations, such as mechanical piping, rooftop systems, or corrosive environments, we offer dedicated product lines like Cush-A-Clamp®, fiberglass strut, and Cush-A-Block®. Each product page includes specifications, installation guides, and load ratings to support your decision.

If you're working on a custom project or have specific engineering requirements, our experienced support team is available to provide personalized recommendations and help you build a complete, code-compliant system.

Are Wesanco-ZSI products made in the USA?

Yes. Many Wesanco-ZSI products are proudly made in the USA. Our support systems are manufactured across several strategically located facilities including plants in California, Florida, Michigan, and Tennessee to ensure fast lead times, consistent quality, and regional service.

Can Wesanco-ZSI support custom or engineered solutions?

Absolutely. We offer custom fabrication, kitting, and engineered support systems tailored to specific project requirements. Contact our expert team to discuss your application.

Do you have certifications, technical documentation, or product literature?

Yes. Wesanco-ZSI provides a full range of technical support materials to help with product selection, installation, and compliance. You can access certifications, load data, technical specs, installation instructions, and safety information through our Resources section and Literature Library at www.wesanco-zsi.com.

Our support tools include downloadable catalogs, product data sheets, installation videos, and selection guides. If you need help finding a specific document or require custom engineering support, our technical team is here to assist. Visit the Resources page or contact us for additional information.

How do I place an order or check inventory?

You can order Wesanco-ZSI products online at www.wesanco-zsi.com or through our distributor network. Online tools allow you to check available inventory, track orders, and view pricing in real time. Chat online with our customer service team with any questions, and for distributor inquiries, contact our sales team.




Wesanco-ZSI delivers American-made support solutions built for strength, flexibility, and long-term performance. From pipe clamps and fiberglass strut to rooftop supports and framing hardware, our products are trusted across mechanical, electrical, and plumbing systems, as well as industrial and rooftop applications.

With strategically located manufacturing facilities, a wide range of standard and custom components, and a reputation for quick turnaround, Wesanco-ZSI helps agents, distributors, contractors, and engineers chose the right products to build reliable systems that last. Whether you're outfitting a rooftop, securing piping in a mechanical room, or designing for corrosive environments, we have the right solution to support your project.

Visit wesanco-zsi.com to explore products, view specifications, check inventory, or place your next order.