Firehouse Building with M-Loc metal siding in black

All Purpose Metal Panel with Exposed Fastener


APPLICATION: Roofing, Siding, Interior Projects, Buildings

GAUGE:  26 gauge | 24 gauge*


STEEL THICKNESS:  26 ga. 0.0185″ | 24 ga. 0.0230″


  • Top coat paint: .70 mil
  • Top coat primer: .30 mil
  • Bottom coat backer: .35 mil
  • Bottom coat primer: .35 mil

TOTAL THICKNESS: 26 ga. 0.0202″ | 24 ga. 0.0247″


STEEL STRENGTH:  80,000 PSI (26 ga.) | 50,000 PSI (24 ga.)



  • Lifetime limited paint adhesion
  • 30-yr. chalk and fade
  • 20-yr. Galvalume perforation

*24 ga. available in Polar and Galvalume (acrylic-coated bare) in select plants

M-Loc Specifications and Line Drawing

Central States offers a variety of educational tools for your use. We recommend reviewing the below documents when making your decision to buy M-Loc.

M-Loc Product Sheet
Trim Selection Tool
Product Guide
Product Guide (Spanish)

When considering the best panel for your project, keep in mind the many benefits of this versatile option. With its exceptional durability and attractive appearance, M-Loc is a reliable choice that can withstand even the harshest weather conditions. Additionally, its low-rib design is perfect for commercial projects that require both aesthetic appeal and commercial-grade strength.

  • Available in 26 gauge with a coverage area of 36-inches.
  • Full-bearing sidelap rib provides consistent weather-resistant joint.
  • M-Loc is a structural roof and wall panel that can be installed directly over purlins, joists, or solid decking.
  • Recommended for 1:12 or greater roof slopes.
  • This panel is produced in our Cedar Hill, TX, and Mount Airy, NC, facilities. Longer lead times may apply.

M-Loc comes in a multitude of popular colors to complement your project and other finish materials. Refer to the downloadable color charts below to find the best solution for you.

Contact your sales representative for custom color options.

Color Chart (Lowell, AR / St. Peters, MO / Texas / Hartford, SD / Michigan City, IN / Jasper, AL / Scottsville, KY)
Color Chart (Claysburg, PA / Mount Airy, NC / Graniteville, SC)
Thrifty Color Chart

Our products have been rigorously tested to make sure that they meet the highest standards of quality. We seek to meet, or exceed, the industry standards by focusing on quality control checks to ensure a consistent, reliable product. The testing documents below showcase testing and approvals for M-Loc.

UL2218 UL Approval, Impact Resistance, Class 4
UL580 UL Approval, Uplift Resistance, Class 90
UL790 UL Approval, Fire Resistance, Class A
RC-445 Texas Windstorm Approval, 26 gauge min. over steel purlins
FL30071.1 Florida Approval, Roof panel, 26 gauge min. over steel purlins
FL14016 Florida Approval, Roof panel, 26 gauge min. over steel purlins

When you buy Central States metal roofing, siding, or buildings, you can be assured that your new investment will look great for a lifetime. Our warranties cover you in unexpected times. We offer a variety of warranties, depending on the material and panel profile you choose.

M-Loc comes with a Limited Lifetime warranty helping protect your investment in home or business.


Central States has taken the guesswork out of selecting a panel quality with our CentralGuard® system – our specific combination of everything that goes into making the highest-quality metal panels. The CentralGuard name guarantees that you have the best protection and a lifetime paint warranty.

Choose M-Loc for the ultimate protection from rain and snow, plus the perfect balance of fade protection, rust blocking, and dent resistance.

Download these helpful tools to learn more:

Layers of Protection
Fade, Rust, Dent
White house with steel roof
Metal products distributor yard
Central Snap Metal Roof