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Marathon Senior Sliding Door System

Internal straight sliding door system for residential or light commercial use, with ball cage top assembly and optional self closing set. Fire door set also available.

Marathon fire door sets are systems developed as part of a half hour sliding fire door assembly toBS 476-22:1987, and should be installed on the non-fire risk side of an aperture. Assembly must be fitted with a solid core FD30 or FD60 timber based fire door.

General information

Uniclass 2015

Pr_30_36_36_23 Door track and running gearPrimary


P21/10 Quantities and locations

P21/350 Door track and running gear

Specification data - Door track and running gear

Product Reference

Marathon Senior Sliding Door System

Fitting set


For doors to 1100 mm wide.


For doors to 1800 mm wide.



For standard doors. Door width: 750–900 mm.


For standard doors. Door width: 900–1050 mm.


For standard doors. Door width: 1050–1200 mm.


For standard doors. Door width: 1200–1500 mm.


For fire doors. With self close.


For fire doors. Without self close.

Self closer

Not required

Required, 407.52.004

Standard product features

Fitting set:

- Standard:

  • Top assembly: Track, hanger bracket, ball cage and runner bar with nylon top plates with integral buffer.
  • End stops, wall mounted.
  • Bottom channel, mortised into bottom of door.
  • Bottom guide, nylon.

- Fire door:

  • Z-section profile.
  • Apron plate.
  • Track stopper.
  • Bottom guide.

Product Options

Maximum door sizes:

  • Weight: 90 kg.
  • Height: 3000 mm.
  • Width: 1500 mm (with standard guide). Use bottom channel for wider doors.
  • Thickness: 32–50 mm.

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