Perforated Metal Panels: What Contractors Need to Know

What are perforated metal panels?

Perforated panels are metal panels that have a predetermined series of perforations (or holes). The holes can be of various sizes across the entire panel or only within the major panel ribs. Common substrates for perforated metal panels include Galvalume^® and aluminum. There are three basic perforation types: round holes, square holes, and slots.

Perforated panels are most commonly used to increase light and ventilation, and they are an excellent source of sound absorption. Common applications include gymnasiums, parking garages, and other projects that need those features.

What Should Contractors Know About Perforated Metal Panels?

• Lead time: Some manufacturers stock perforated material for commonly requested panel profiles. When the material is already in stock, lead times may be similar to non-perforated panels. If the requested material or profile isn't stocked, contractors should plan for potentially longer lead times and minimum order quantities. At McElroy Metal, we stock perforated material for our Max-Rib, Multi-Rib, and R-Panel.
• Price: Perforated panels typically cost more than non-perforated panels because of the additional step required during production. After the coil is coated, material intended for perforation is sent through an additional process before it reaches the panel manufacturer. That additional production, transportation, and handling can increase the cost of the finished panel.
• Load Carrying Capability: Perforating a metal panel affects its load-carrying capability. Because perforated panels are often used in applications where they aren't intended to serve a structural function, that may not be an issue. However, contractors should verify requirements for the specific application if structural performance is a concern.
• Warranty Considerations: Perforation can also affect warranty coverage. Because the metal is typically perforated after the coating has been applied, the edges created during perforation may not have the same coating protection as the rest of the panel. Contractors should verify applicable warranty coverage before ordering perforated material.

Perforated metal panels give contractors another option when a project calls for ventilation, light, sound control, or a specific architectural look. Understanding lead times, cost, structural requirements, and warranty coverage before ordering can help avoid surprises once the project is underway. Contact us today to discuss your project specifics.