The Leading Supplier of Walls and Roofing for

Post Frame & Agricultural Construction

McElroy Metal is the only manufacturer to offer Kynar® paint as a standard finish, ensuring long-term durability and color retention for post-frame projects. With both galvanized and Galvalume® substrates in stock, we provide the flexibility to choose the best option for each job. Plus, our specialized services—like edge coating and thermoforming—help builders create standout, high-performing structures.
Durability

Durability

Life Expectancy

Life Expectancy

Quick Installation

Quick Installation

Adds Curb Appeal

Adds Curb Appeal

Design Flexibility

Design Flexibility

The Quickest and Most Economical Way to Erect a Building

Post frame construction consists of pressure-treated solid wood posts or laminated columns and framing that create a building’s structure. While a wide variety of building materials can be used for walls and roofs, steel roofing and siding panels are the most common cladding for post frame buildings.

Post frame buildings are widely recognized as being economical and easy to erect. However, these aren’t the only advantages of post frame construction. Today’s post frame buildings offer superior aesthetics, durability, and long service life. Thanks to the design flexibility of post frame construction, their uses range from simple backyard storage units to high-end commercial structures.

Post Frame

We're proud to offer one of the industry’s most comprehensive post-frame product lines—designed for performance, precision, and long-term value. With an extensive selection of panel profiles, colors, and substrates, plus innovations like MoistureLok™ anti-condensation technology and manufacturing techniques like thermoforming, we take great pride in help post-frame builders meet every challenge with confidence. Backed by dependable lead times, industry-leading warranties, and nationwide support, McElroy delivers the strength behind exceptional structures. Click on the buttons below to learn more.

 

Post Frame

We're proud to offer one of the industry’s most comprehensive post-frame product lines—designed for performance, precision, and long-term value. With an extensive selection of panel profiles, colors, and substrates, plus innovations like MoistureLok™ anti-condensation technology and manufacturing techniques like thermoforming, we take great pride in help post-frame builders meet every challenge with confidence. Backed by dependable lead times, industry-leading warranties, and nationwide support, McElroy delivers the strength behind exceptional structures. Click on the buttons below to learn more.

 

McElroy Metal’s post-frame product offering has evolved well beyond its agricultural roots to support a wide range of structures—from large commercial and religious buildings to modern shouses and barndominiums across both rural and urban markets.

We offer a broad selection of metal panels in multiple profiles and gauges, with premium Kynar 500® and silicone-modified polyester paint systems. Our exposed fastened and standing seam systems, along with specialized accessories and trim components, are engineered to work together as integrated solutions—meeting the high standards of today’s post-frame contractors and their clients.

While long-term warranties like “lifetime” coverage can seem reassuring, they don’t always reflect true product performance. Many include proration clauses and exclusions that can offer less protection than expected.

Experienced contractors and building owners know that real value comes from time-tested material choices—like Galvalume® steel paired with Kynar 500® PVDF coatings—which deliver consistent, proven performance over the life of the building, with or without the marketing promises.

 

Discover how the right color choices can transform your post-frame building from ordinary to extraordinary—whether you want to blend seamlessly with nature or create a bold statement that commands attention from miles away.

McElroy Metal’s innovative warm roll-forming process helps prevent the microscopic paint fractures that can lead to rust staining—protecting your panels and preserving the appearance of your post-frame building for years to come.

It’s a breakthrough manufacturing technique that adds lasting value and performance to every project.

Discover how McElroy Metal's factory-applied MoistureLok membrane captures condensation droplets in specially designed pockets and releases them as natural humidity—eliminating the costly labor and unsightly appearance of traditional vapor barriers while keeping your building contents in the dry.

The wrong substrate choice could cut your metal roof's lifespan in half—discover why the 66% zinc difference between G100 and G60 galvanized steel, and the proven 23-year field testing that makes Galvalume two to four times more durable, could save you thousands in premature replacement costs.

McElroy Metal’s post-frame product offering has evolved well beyond its agricultural roots to support a wide range of structures—from large commercial and religious buildings to modern shouses and barndominiums across both rural and urban markets.

We offer a broad selection of metal panels in multiple profiles and gauges, with premium Kynar 500® and silicone-modified polyester paint systems. Our exposed fastened and standing seam systems, along with specialized accessories and trim components, are engineered to work together as integrated solutions—meeting the high standards of today’s post-frame contractors and their clients.

While long-term warranties like “lifetime” coverage can seem reassuring, they don’t always reflect true product performance. Many include proration clauses and exclusions that can offer less protection than expected.

Experienced contractors and building owners know that real value comes from time-tested material choices—like Galvalume® steel paired with Kynar 500® PVDF coatings—which deliver consistent, proven performance over the life of the building, with or without the marketing promises.

 

Discover how the right color choices can transform your post-frame building from ordinary to extraordinary—whether you want to blend seamlessly with nature or create a bold statement that commands attention from miles away.

McElroy Metal’s innovative warm roll-forming process helps prevent the microscopic paint fractures that can lead to rust staining—protecting your panels and preserving the appearance of your post-frame building for years to come.

It’s a breakthrough manufacturing technique that adds lasting value and performance to every project.

Discover how McElroy Metal's factory-applied MoistureLok membrane captures condensation droplets in specially designed pockets and releases them as natural humidity—eliminating the costly labor and unsightly appearance of traditional vapor barriers while keeping your building contents in the dry.

The wrong substrate choice could cut your metal roof's lifespan in half—discover why the 66% zinc difference between G100 and G60 galvanized steel, and the proven 23-year field testing that makes Galvalume two to four times more durable, could save you thousands in premature replacement costs.

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Your Coating Choice Matters!

You'll find two popular paint systems for metal roof and wall panels: Kynar 500® and Silicone Modified Polyester. The price point between the two on a residential project can be minimal, especially when considering the improved performance of the Kynar 500 system against fade and chalk.

Let’s look at a real-life example to showcase the difference. Both PVDF (Kynar 500) and Silicone-Modified Polyester (SMP) panels were installed on a home in Louisiana. On day one, the colors were an identical shade of green.

The accompanying photo, taken only eight years later, tells a powerful story of the differences between the paint systems as it highlights both the chalk and fade of the SMP paint system. Note that there is no visible fade or chalking on the darker (PVDF) panels.

KynarSP

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Samples & Color Charts

Request physical samples and color charts. All items will be sent out via UPS ground unless otherwise specified.

Samples & Color Charts

Substrates Matter Too

Substrates Matter Too!

Underneath the paint/coating, the substrate of the actual metal is the heart of a metal roof panel.

You'll find two common substrates for metal panels: Galvanized and Galvalume®. Galvanized substrates feature a zinc coating applied to the raw steel, while Galvalume substrates feature an alloy of zinc plus aluminum.

Galvalume substrates offer homeowners the highest quality long-term solution.

Our recommendation is based on decades of research and actual field performance. Galvalume delivers better results, excellent corrosion resistance, and long-term aesthetics. Galvalume substrates also carry a warranty from Steel Mills against rupture or perforation due to corrosion. Similar Steel Mill warranties for Galvanized substrates simply don’t exist. Want to know more about substrates? Contact Us, we're happy to help!

Ways We're Different

We're working hard to earn your business so multiple paint systems and substrate offerings aren't the only things we do differently at McElroy Metal. 

Check out the three additional options below that we offer specifically for our Post-Frame customers.  

thermoforming-warranty

Thermoforming for the Win!

Thermoforming (or warm forming) is just another example of our commitment to customer satisfaction and constant improvement.

Traditionally steel panels have been manufactured from steel at room temperature.  While that process worked for decades, new advances have proven that warming the steel prior to production can result in a better product with a longer life expectancy for Silicone Modified Polyester (SMP) paint systems.  

Edge Rust Inhibitor

Edge Rust Inhibitor

The cut ends of metal panels expose raw steel to Mother Nature’s elements, resulting in the appearance of red rust. McElroy Metal provides factory-applied edge coating to our Max-Rib and Mesa panels at our Post Frame manufacturing facilities*. 

McElroy Metal’s edge coating processes apply a clear coat rust inhibitor at panel ends, which helps to minimize corrosion. 

*Marshall, MI; Mauston, WI; Lewisport, KY and Winchester, VA

Factory Applied Anti Condensation Fabric

Factory Applied Anti Condensation Fabric

Max-Rib roof panels with McElroy's MoistureLok, offer a great option to address condensation challenges.  The design of our MoistureLok product traps moisture and then releases it back into the air as natural humidity once conditions go back below the dew point. 

Find a Distributor / Contractor Near You

We are the leading metal wall and roofing supplier to the post frame industry. To find quality products that meet your architectural and budgetary needs, contact a McElroy Metal distributor or contractor in your area today.

Choosing the Right Partner

Once you've decided on a post-frame building, it's time to choose the right partners to make your dreams come true!

First, you want to select a reputable contractor who installs only high-quality building materials. If you're exploring options, check out our Find-A-Contractor tool, which allows you to search for builders near you.

While selecting a great contractor is critical to your project's success, it's equally important to select a tier-one manufacturer for your metal roof and wall panels. While you might have a local manufacturer closer to you, there are tradeoffs for working with a regional manufacturer instead of a national one, like McElroy Metal.

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