Hollow Metal Sills

Hollow metal sills are used in commercial applications. They are all ADA approved and therefore are not greater than 1/2″ tall. Saddle thresholds are installed in high traffic public areas. They allow easy access for items such as wheel chairs and strollers. The 520S saddle threshold is designed for use with surface mounted vertical rod exit devices. It will provide for a smoother operation of the bottom rod latches.

Click here for installation instructions.

Click here for the standard hole spacing.


412S Saddle Threshold

  • For use in high traffic areas
  • Use with door closers or RIM exit devices
  • 5″ Saddle Threshold
  • 3/0 and 6/0 widths in a mill or dark bronze finish
  • 4/0 width in mill
  • CAD Drawing

416S Saddle Threshold

  • For use in high traffic areas
  • Use with door closers or RIM exit devices
  • 7″ Saddle Threshold
  • 3/0, 4/0, and 6/0 widths in a mill finish
  • CAD Drawing

520S SVR Saddle Threshold

  • Use with surface mounted vertical rod exit devices
  • Provide for a smoother operation of the bottom rod latches
  • 7″ Saddle Threshold
  • 6/0 width in a mill finish
  • CAD Drawing



Updated on May 14, 2021

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