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AN51/55 BA 5mm Aluminium Stair Nosing

Product Description

The AN51/55 BA is a 5mm gauge, square-edged, single-channel aluminium stair nosing available with a variety of infill options and colours such as castellated PVC or aluminium ATI's. The body of this nosing is available in bronze, light bronze, mill aluminium, satin aluminium, polished aluminium and black anodised, and can be ordered to measure.


This profile has a 62mm tread a 55mm square riser and is ideal for use with carpet, carpet tiles and all resilient floor coverings. These stair nosings can be supplied drilled retrofit for hidden fixing, with castellated PVC insert or with ATI49.5 for a full aluminium concealed fixing installation.

Available Finishes:

  • Black Anodised Aluminium

Size Options​: Cut-to-size

Max Lengths

  • 2.75m

Infill Options:

  • PVC Castellated

  • Smooth Textured

  • ATI49.5 Insert

Drilling Options​ PVC Infill:

  • Drilled retro

  • Drilled for countersunk screws

  • Drilled for concealing plugs 

  • Undrilled 

Drilling Options​ ATI & Olympic:

  • Drilled retrofit infill

  • Undrilled​

Screw size 8.


Fixings not supplied.

Drilling is available - 5% charge

Black Anodised.png
CAT Castellated PVC Infill Colours

Stringer angles also available in Satin and Polished Aluminium.

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Aluminium Technical Data Sheets

AN51/55 BA Castellated

Infill Technical Data Sheet

AN51/55 BA ATI Infill

Technical Data Sheet

AN51/55 BA Smooth PVC

Infill Technical Data Sheet

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