• JRC-12 HDPE Manhole - Fortress 1220x675x750mm

5 nos. of Cubis StakkaboxTM Fortress 1220 x 675 mm stackable rings of 150mm height stacked to create a

total height of 750mm

 STAKKAbox™ Fortress is a range of modular and structural preformed access chambers, suitable for

use in carriageway and footway environments.

The Fortress system is moulded in HDPE and possesses excellent strength to weight properties.

 The innovative lightweigth, strong underground network access pit

  • Structural UV stabilised HDPE design and construction
  • No part >25Kg for easy of assembly
  • Twin wall vertical and horizontal ribbing for strength
  • All sections 150mm in height sections for easy assembly
  • Ideal for building over existing services
  • Designed for Class B and Class C load rating
  • Simple lock-in assembly process
  • No mechanical lifting of pit required
  • Easy to cut with standard drill saw or hand saw

Material Data:

Fortress is moulded in Nitrogen Foamed High Density Polyethylene (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

Clear Opening

Profile Type

Depth per Section

Externals Dimensions

Vertical Loading

Weight per Section

















Write a review

Please login or register to review

JRC-12 HDPE Manhole - Fortress 1220x675x750mm

Related Products

Manhole Ox Head Security Socket For 3636-26/36 Covers-A009

Manhole Ox Head Security Socket For 3636-26/36 Covers-A009

Manhole cover key with an Ox head socket to easily open Manhole covers. It has a tee handle for greater torque and added leverage ..

Send Price Request

Key Lifting Manhole Cover

Key Lifting Manhole Cover

A "T" shaped steel lifting key for use on circular, oval "woods" type and triangular carriageway manhole covers.It also incorporates an eye so that ..

AED 75.00

MULTIduct™  4 Way - 110mm Single Duct

MULTIduct™ 4 Way - 110mm Single Duct

MULTIduct™ is a multiple duct cable protection system, used for constructing underground ducting systems for under track or road crossings (UTX/URX)..

Send Price Request