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Mounting bases


Arlington's one-piece, non-metallic mounting Bases provide a smooth, flat mounting surface for most electric meters, including the largest sizes as well as a variety of other products such as disconnects, timers, inlet boxes and more.

Designed for easy use, squared-off corners provide 'gangability' so installers can create a custom-sized mounting base for the product they're intalling.

Available in a variety of sizes, our mounting bases install on siding and other surfaces. They work on any siding type, and install before or after the siding goes up.


  • Paintable, textured surface
  • UV-rated plastic for long outdoor life
  • The new smaller MM7 (measures 5"x7") helps meet  the NEC 2020 code requiring an outside disconnect for AC and other service

    1.) Fasten mounting base to substrate through 'notched' flanges.

    2.) In SIDING Installation, butt siding to mounting base into the J-channel and overlapping the 'notched' flanges. The 1" overhang hides the cut ends of siding.

    3.) If GANGING bases together, seal vertical joint channels with Arlington's DSCI Duct Seal Compound. 

    TO COMPLETE Mount meter or other product on the mounting base. Caulk as required.   

    Download the Specification Sheet
    French Spec Sheet
    Watch the Product Video

    How to Buy

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    Purchasing in Canada? Please click here to contact our Canadian Representatives.