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  • No. 17 Steel Platform

The No. 17 platform is for use with our No. 17 gravity-lift, wood bottom seat exclusively and uses a 1" x 3" vertical steel column and a heavy-gauge steel socket assembly for the seat pivot.


  • Formed from 14 gauge steel into a 1” x 3” vertical column
  • Formed 14 gauge steel mounting foot for floor mounting
  • 1/4” thick steel mounting plate used for riser mounting
  • Seat socket formed from 12 gauge steel
  • Dovetail armrest plate is formed from 14 gauge steel
  • Aisle end standards use a formed 14 gauge steel pan welded to the column
  • All components are MIG welded


  • Available with all backs except 406, 408, 505 & 507 models
  • Available with No. 17 wood bottom seat only
  • Available in 19”, 20”, 21” and 22” chair widths
  • Available for level floor mount, A, B & D incline floor mount, and six riser mount heights


  • Aisle end standards are available with cantilevered mounting foot
  • Available with a variety of armrests
  • Powder-coated in 15 standard colors (custom colors are available)

No. 17 Steel Platform Collections


Focal LED Aisle Light

Beacon LED Aisle Light

Concealed LED Aisle Light

Transfer Arm

Swing Away Aisle Panel

Movable Base