Architectural · A-G5C3K

Typical Wall Backing Plate Assembly for Handrails and Cabinets

Materials

Steel Metal (misc.)

Elements

Walls Partitions Railings / Guards Millwork / Casework Anchors / Embeds Connections / Plates

Connections

Base Plate / Anchorage

About this detail

A standard backing plate assembly supports handrails, grab bars, toilet accessories, and wall-hung cabinetry within metal stud partitions. The assembly uses a minimum six-inch by sixteen-gauge steel plate attached across a minimum of three studs, extending at least six inches beyond the mounting point in each direction. Double studs are required at the ends of partitions, and all framing and anchorages must use a minimum of twenty-gauge material. Three number eight pan head sheet metal screws secure the plate to each stud. This configuration is rated for loads up to one hundred pounds per square foot or two hundred fifty pounds per linear foot, with heavier loading requiring consultation with the structural engineer.

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