Floor Door Hinge System

The Floor Door Hinge System allows for a smooth operating floor or trap door for any project. The hinge is engineered so the door sits flush with the floor, seamlessly hiding the hinges below. The hinge lifts the door up and away from the door frame preventing the door from binding.  Integrated mounting plates can be screw fastened or welded to the door and frame.

The Gas Struts assist in opening and closing the door. Each Floor Door Hinge System includes one Locking Gas Strut to hold the door open for safety during installation and on day-to-day use.

  • Made with 1/4″ stainless steel
  • Integrated mounting plates for door and frame
  • Gas struts included
  • Brandner Design is not liable for damage to persons or materials caused by improper use of hinges and/or not installing a locking mechanism

Floor Door Hinge Systems:

– Doors up to 72″ L: 2 Hinges ($625 x 2) + 1 Locking Strut ($185) + 1 Non-Lock Strut ($45). This system holds a door with a total weight up to 180lb.

– Doors between 73″ to 96″ L: 3 Hinges ($625 x 3) + 1 Locking Strut ($185) + 2 Non-Lock Strut ($45 x 2). This system holds a door with a total weight up to 270lb.

– Doors between 97″ – 120″ L: 4 Hinges ($625 x 4) + 1 Locking Strut ($185) + 3 Non-Lock Strut ($45 x 3). This system holds a door with a total weight up to 360lb.

– Doors greater than 121″ L: 5 Hinges ($625 x 5) + 1 Locking Strut ($185) + 4 Non-Lock Strut ($45 x 4). This system holds a door with a total weight up to 450lb.

If your door length and weight fall into different product categories, guide your choice by the weight of your door rather than the length.

If your door dimensions and weight do not fit any of our options, please contact our sales team at sales@brandnerdesign.com or 406-582-0711 before purchasing a Door Hinge System.

Our standard Floor Door Hinge Systems offer two gas strut size options:
• Door Width between 28” and 36” (17 1/8” Strut Length)
• Door Width between 36.1” and 42” (19 6/8” Strut Length)

Should your door width not align with these options, please contact our sales team at sales@brandnerdesign.com or 406-582-0711, and we will assist in sourcing a specific gas strut tailored to your needs.

Brandner Design also offers a Floor Door Package featuring an aluminum frame with flush plywood covering (ready for seamless installation of your chosen flooring), and a custom door jamb specially designed to accommodate our Floor Door Hinge System. For more information on this product, please contact our sales team at sales@brandnerdesign.com