Home > Companies > Howe Green Ltd > 5000 Series (Aluminium) Duct Cover

Aluminium light duty floor access cover for pedestrian traffic, including wheeled trolleys, sack trucks, etc. Includes inset lifting points as standard.


  • Covers can be fitted quickly and unobtrusively into all types of hard floor finish: ceramic tiles, marble, terrazzo, concrete, resin, wood or parquet.
  • Unique patented cover sections are tapered for easy removal, frame sections give a good key to bedding mortar.
  • Covers are precision-made to avoid distortion.
  • Top edge seal on aluminium covers helps prevent dirt, grout or grinding waste penetrating joint between cover and frame.
  • Double seals available.
  • Lifting blocks are anchored to the inner frame. Stainless steel securing bolts are stiletto heel proof.
  • Aluminium, brass or coloured high impact PVC show edge is continuously secured; there are no fasteners to rust or break.
  • Provides easy access to under floor services using lifting keys.
  • Quick to install ensuring minimum disruption.

Manufactured in accordance with BS EN ISO 9001.

Standard product features


Aluminium cover and frame with steel baseplate and reinforcement. Galvanized carbon steel support beams and pockets (where necessary).


50 mm.

Weight (when filled):

90 kg/m².

Overall frame size:

Clear opening size plus 120 mm.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
90-05-20/320 Covers, gratings and frames for access chambers

Product specification

An important note about specifying



Howe Green Ltd


+44 (0)1920 463230

Product reference

5000 Series (Aluminium) Duct Cover


As drawing - Insert reference.

Clear opening width

As drawing - Insert reference, available 100–600 mm.


 - Base plate:
[Galvanized steel]
[Stainless steel, grade 1.4301 (304)]
[Stainless steel, grade 1.4401 (316)]
 - Show edge:
Standard, matching lifting blocks.
Matching lifting blocks.
[Colouredge high impact PVC, Black]
Aluminium matching lifting blocks.
[Colouredge high impact PVC, Forest green]
Aluminium matching lifting blocks.
[Colouredge high impact PVC, Sandstone]
Aluminium matching lifting blocks.
[Colouredge high impact PVC, Slate grey]
Aluminium matching lifting blocks.
[Colouredge high impact PVC, Terracotta]
Aluminium matching lifting blocks.
[Colouredge high impact PVC, White]
Aluminium matching lifting blocks.


[Double sealed with socket head securing bolts]
[Unsealed with blanking bolts]

Fire rating

[Two hours]
To BS 476-20.

Support beam pockets

[Not required]
For use where support beams are required.
[Surface mounted]
For use where support beams are required.

Sets of combined lifting/ securing keys

[Not required]

Cover skate lifting device

[Not required]

Manufacturer details

Marsh Lane,
Hertfordshire, SG12 9QQ
Tel +44 (0)1920 463230
Fax +44 (0)1920 463231
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