Skip To Content
Get a Quote



POLYvault™ is a modular design suitable for footway installations but is equally suited alongside rail tracks. The single wall design means the product remains very light even though it is a single piece construction.

Structural ribs on the outside provide resistance to vertical and sidewall loadings and this can be complemented with internal stiffening bars to accommodate higher specifications.

Enquiry Form

* indicates a required field

Enter your enquiry details
Tick if you wish to receive information regarding products, services, news and promotions from Cubis. We won't share your details with other companies. For more information about how we store your data view our privacy policy. If you wish to unsubscribe at any time please write to us or email
  • Commonly used alongside railway tracks
  • Single wall design ensures a light product
  • Structural ribs on the outside provide resistance to vertical and sidewall loadings
  • Covers are ‘dropped’ in the inner-lip of the chamber and do not require a frame

POLYvault™ is manufactured in nitrogen-foamed High Density Polyethylene, of which up to 70% is recycled material

Benefits of HDPE:

  • Excellent chemical resistance to ethanol, acetone, diesel etc.
  • Unaffected by sulfate ground conditions.
  • Recyclable
  • Robust - no breakage waste
  • Completely impervious to water
  • Nitrogen injection creates cellular core (CFC free)
  • High strength to weight ratio
  • High stiffness to weight ratio
  • Easy to cut for duct entries


  • Telecommunications 
  • Buried Cable Routes
  610 mm 910 mm 1220 mm 1370 mm 1530 mm 1835 mm 2140 mm
470 mm    
610 mm
910 mm  
1220 mm    
1370 mm      
1530 mm        
1835 mm          

Related Products