Sioux Chief 525-16WLB Strong Arm Shower Blocking 16 Inch

Product Description

The SIOUX CHIEF 525-16WLB is a Strong Arm shower valve blocking plate designed for 16-inch on-center stud bay framing. It includes an integrated Shower Wall Nut Lock Block that secures the shower valve during rough-in installation, preventing rotation and movement when tightening supply connections. Licensed plumbers and plumbing contractors use this component in new construction and remodel shower installations to provide a solid, code-ready mounting point for shower valves behind the finished wall surface.

This blocking plate fits standard 16-inch stud bay framing commonly found in residential bathroom construction. It is installed during the rough-in phase, before wall board or tile backer is applied. The integrated lock block feature is particularly useful in single-person installations where holding the valve body in place while making connections is otherwise difficult.

Key Features

• Designed for 16-inch on-center stud bay framing
• Integrated Shower Wall Nut Lock Block prevents valve body rotation during connection tightening
• Supports single-technician rough-in workflow
• Provides solid backing for shower valve mounting behind finished wall surfaces
• Suited for new construction and remodel applications

Compatibility

Designed as an OEM-style blocking solution for residential shower valve rough-in installations in standard 16-inch on-center stud bay framing.

Installation Notes

Installation is performed by licensed plumbers during the rough-in phase before wall board is applied. Shut off the water supply to the work area before making any supply connections. Secure the blocking plate to the stud framing per local plumbing code requirements, referencing the IPC or applicable local amendments. Do not overtighten supply fittings beyond the valve or fitting manufacturer specifications.

Technical Specifications

• Stud Bay Spacing: 16 inches
• UPC: 739236267696

Standard Information

• Brand: SIOUX CHIEF
• Manufacturer Part Number: 525-16WLB