Custom Coil & Flat Sheets

At Mueller, we stock a wide range of gauges, widths and paint finishes for your custom coil and flat sheet requirements. Our vast inventory selection of premier metal products, coupled with the personal service you can only find from Mueller, has been the foundation of our business for over 90 years.


  • Vast selection of designer colors and gauges
  • Custom coil widths and lengths (minimum of 200 linear feet)
  • Custom trim and matching colors
  • Supporting products (fasteners, underlayment, clips & closures)
  • Quick turnaround time
  • Convenient locations for easy pickup
  • Job site delivery (for a fee)

Flat Sheets

  • Available in full width up to 21 feet.
  • 26 gauge in 41 9/16" width
  • 24 gauge in 43" width, and 48" width (limited colors)
  • 22 gauge in 43" width (Galvalume Plus & Weathering Steel only)


Coils are packaged with rain cap, ID and OD protector.  

Flats are packaged with strippable plastic and can be rolled or palletized. (additional pallet charge)

For a larger view of our packaging click here.

Coil Color Availability 

Coil Color Availability

To download the Color Availability Chart, click here.         To download the 24 Gauge Coil Color Chart, click here.


Galvalume Plus primed cold rolled sheets with a coating weight of AZ50 or AZ55 are an exclusive limited warranty by STEEL DYNAMICS, INC®.

Aged Bronze, Medium Bronze, Dark Bronze, Dark Charcoal, and Bright White fall under Sherwin-Williams® liquid coatings for coil coat application limited warranty for Fluropon and WeatherXL.

All other colors fall under AKZO NOBEL liquid coatings for coil coat application limited warranty for CERAM-A-STAR® 1050 CC and Trinar CC coil sales only. 

Please visit Coil Warranty for more detailed information.