Steel Door Thresholds

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Selecting the correct threshold is an important factor when specifying a steel door-set, helping to ensure it performs as intended while meeting the practical needs of the building and its users.

Designed with inclusivity in mind, Strongdor thresholds are Part M compliant, providing safe and accessible access for all users. With a range of threshold options available to suit different environments and performance requirements, Strongdor makes it easy to specify a solution that is both fit for purpose and compliant with current building regulations.

  • Wide variety of options
  • Part M compliant
  • Making life easier
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Further information

Features

96mm steel door threshold

  • Mobility easy access threshold door sill.
  • Suitable for outward opening doors.
  • For all frame and door types.
  • Seals gaps 5mm-9mm

AM3 threshold

  • Mobility Easy Access Threshold Door Sill.
  • Suitable for inward opening doors.
  • Ergonomically tested for Part M compliance.
  • Seals gaps 18mm-23mm.
  • Designed to fit directly onto level thresholds.\
  • Ideal for use with carpeted floors.
  • Non-slip surface ensures a safe grip in wet conditions.
  • *Available in a 70mm narrower version.

AM5 threshold

  • Mobility easy access threshold door sill. Suitable for outward opening doors.
  • Ergonomically tested for Part M compliance.
  • Seals gaps 15mm-20mm.
  • Thermally broken to meet thermal bridging and insulation requirements.
  • Designed to fit directly onto level thresholds.
  • Non-slip surface ensures a safe grip in wet conditions.
  • Supplied with end caps to close off the ends of the front channel.
  • Optional clip-in internal transition ramp also allows use with tiled and wooden floors.
  • Adjustable locking keeps available for double doors to suit your shoot bolt position.
  • Plastic shootbolt catcher available for double doors.

Industrial door plate

  • Mill finish aluminium.
  • Use with bottom door brush or rubber seal for rain and draught exclusion.

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