Custom Filler Bar™ 

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Make your own custom filler panels or transition panels on the spot

Steel Dog® Filler Bars™ are strong, extruded aluminum channels with attached, sliding latch hardware to connect 1-1/8” form panels to 3/4” plywood. With Filler Bars, you can make custom fillers on the job with inexpensive 3/4” plywood for a myriad of uses.



Aluminum channels are lightweight, strong, and corrosion-resistant
Latches and bolt plates can be easily moved to match any bar pattern
Use inexpensive 3/4” plywood to make your own fillers


  • Custom fillers

  • Pass-throughs

  • Step-ups

  • Transition panels

  • Architectural elements

  • Custom-made corners