CAT Aluminium Stair Nosing 55mm Square Edge 5mm Gauge AN51/55

SKU: AN51/55 Categories: All Nosings, Premium Aluminium and Brass Stair Nosing Tags: 3PL, export, Nosing, Sample Brand: CAT Flooring Accessories

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5mm gauge aluminium stair nosing with square-edge profile
55mm nose and 62mm tread for enhanced stair safety
Supplied in lengths up to 2.70m
Compatible with ANRE25, ANEXT and ANE nap details
Available in Polished Aluminium, Bronze & Light Bronze
Suitable for commercial and residential interiors

AN51/55 Datasheet

Catalogue Reference	AN51-55BA
Uniclass2015	Pr_35_90_31_74 RIGID STAIR NOSINGS
General Description	Single Channel/Square Front Stair Nosing. Supplied with choice of infill.
Nosing Construction	Stair Nosing With Infill
Material	Aluminium Alloy 6063 T6
Tread Dimension	62 mm
Nose Dimension	55 mm
Gauge	5.0 mm
Supplied Cut To Size, up to a maximum length of	2700mm, 3200mm
Screw Size	8
Compatible Products	ANE NAP For abutting to carpet and carpet tiles to finish the nose edge of stairs. Can be rebated to sit, ANEXT, ANRE25
Application	ANRE25 Ramp Detail and ANEXT extension tread installation guide available. Suitable for stairs with low to medium traffic volumes where heavy foot traffic and impacts may cause wear., flush in wooden steps. Compatible with profiles ANE Nap Detail
Suitability	through the finish to reveal the natural aluminium colour beneath.
Post Consumer Recyclability	This product is 100% recyclable at suitable disposal centres.
Profile Type	Stair Nosing
Length	2700 mm, 3200 mm

Price range: £40.45 through £98.95 inc. VAT

ex. VAT £33.71-£82.46

Finish

Colour

Clear

The AN51/55 Aluminium Stair Nosing is a 5mm gauge, square-edge, single-channel stair nosing designed for durability, safety, and refined aesthetics in commercial and residential interiors.

Manufactured from Aluminium Alloy 6063 T6, the AN51/55 features a 55mm nose and 62mm tread, providing excellent edge protection and slip resistance when paired with the wide range of available infill options.

The profile incorporates an interlocking back edge, allowing seamless compatibility with ANRE25 ramp extensions, ANEXT tread extenders, and ANE nap details, making it ideal for use with broadloom carpets, carpet tiles, and rebated timber stairs.

Part of the Designer Collection, the AN51/55 is available in premium finishes including Polished Aluminium, as well as Bronze and Light Bronze options that replicate the look of aged brass without the associated cost. Matching flooring trims are also available within the Designer Home Collection.

Suitable for medium to heavy foot traffic, this stair nosing is commonly specified in hotels, offices, schools, retail spaces, cafés, pubs, and apartment buildings. Supplied cut to size up to 3200mm and fully 100% recyclable.

Dimensions may vary by up to ±5mm in line with supplier manufacturing tolerances.

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Catalogue Reference	AN51-55BA
Uniclass2015	Pr_35_90_31_74 RIGID STAIR NOSINGS
General Description	Single Channel/Square Front Stair Nosing. Supplied with choice of infill.
Nosing Construction	Stair Nosing With Infill
Material	Aluminium Alloy 6063 T6
Tread Dimension	62 mm
Nose Dimension	55 mm
Gauge	5.0 mm
Supplied Cut To Size, up to a maximum length of	2700mm, 3200mm
Screw Size	8
Compatible Products	ANE NAP For abutting to carpet and carpet tiles to finish the nose edge of stairs. Can be rebated to sit, ANEXT, ANRE25
Application	ANRE25 Ramp Detail and ANEXT extension tread installation guide available. Suitable for stairs with low to medium traffic volumes where heavy foot traffic and impacts may cause wear., flush in wooden steps. Compatible with profiles ANE Nap Detail
Suitability	through the finish to reveal the natural aluminium colour beneath.
Post Consumer Recyclability	This product is 100% recyclable at suitable disposal centres.
Profile Type	Stair Nosing
Length	2700 mm, 3200 mm

What floor types is the AN51/55 suitable for?

The AN51/55 is designed for use with broadloom carpet, carpet tiles, and timber stairs, and can be rebated to sit flush where required.

What infill options are available?

Infills include Castellated PVC, Smooth Textured PVC, ATI49.5 Aluminium, and Olympic Grip, available in multiple colours and finishes.

Is this stair nosing suitable for commercial use?

Yes, it is rated for medium to heavy foot traffic and is widely used in commercial and public buildings.

Can this profile be used with ramp or extension details?

Yes, the interlocking back edge is compatible with ANRE25 ramp extensions, ANEXT tread extenders, and ANE nap details.

Orders placed before 1400 Mon-Friday will normally be dispatched the same day. Please see our shipping options below:

Standard Delivery

Standard delivery is available for most of our items that are under 1.2m in length. Standard delivery is tracked and normally takes 3-4 working days.

£3.99 Available for products under 1.2m in length

Express Delivery

Express delivery is available for most of our items. Express delivery is tracked and normally takes 1-2 working days with most deliveries arriving next day.

from £8.99 for products under 1.2m in length
from £11.99 for products over 1.2m up to 2.0m
from £12.49 for our commerical range

Long Length Delivery

Long Length delivery is an Express delivery service that applies to most of our items that are over 1.2m in length. Express delivery is tracked and normally takes 1-2 working days with most deliveries arriving next day. Products over 1.2m have to be shipped using these services

From £12.49 - £24.99 for products over 1.2m. Free if you spend over £300

FREE Delivery

For orders over £300

*Please note the above rates apply to most GB mainland postcodes. On rare occassions our couriers may increase their rates for some postcodes in which case we will call you to discuss your options.