Skip to main content
NEXA Logo
DEEN
Modular Manhole System · EU Patent

The shaft,redesignedfor fibre.

FODIS Box is a fully modular underground manhole system, engineered to remove the rework, storage overhead and depth guesswork from fibre rollouts. Two formats. Three cover types. One disciplined system.

FODIS Box modular underground manhole system
  • 10 standard formats
  • A15 – D400
  • 3 standard heights
  • 3 cover materials
  • Cascadable
  • HDPE modular
  • Hot-galvanized
  • EU patented
  • Fibre · Telecom · Data centre
  • 10 standard formats
  • A15 – D400
  • 3 standard heights
  • 3 cover materials
  • Cascadable
  • HDPE modular
  • Hot-galvanized
  • EU patented
  • Fibre · Telecom · Data centre
Engineering

Six reasons this works underground

Every detail is chosen for installation crews, project planners and asset owners — not catalog optics.

  1. 01

    Three cover types

    Choose ductile iron (heavy-duty), concrete, or paveable covers — all height-adjustable, all metal parts hot-galvanized.

  2. 02

    Modular body

    Flexible construction, easy to customize depth on site. Smallest step to change depth is 75 mm.

  3. 03

    Cluff hole element compatible

    Possibility to add 2 types of cluff in hole element (stepped grommet) for cable entry.

  4. 04

    D400 reinforced frame

    D400 execution contains a double frame in the middle with galvanized metal, certified for heavy-traffic loading.

  5. 05

    Four locker mechanisms

    Available with hex, inner hex, LICK-LOCK, or COLT/TELNET locking — or no-locker option.

  6. 06

    Anti-slip base

    Reinforced frame and anti-slip base plate included as standard.

MODULAR CONSTRUCTION

Engineered as a modular system

Cover, frame, height segments and base plate are configured independently, ship flat and assemble directly on site. The modular concept reduces storage space, transport volume and installation overhead — without bespoke fabrication.

Load classes
A15–D400
Standard heights
3
Expandable
Cascadable
FODIS Box exploded view showing modular layered construction
FODIS Configurator

Build the manhole that fits your project

Pick clear dimensions, cover material and body height — we calculate the external dimensions and confirm the load class for you.

Clear dimensions
Cover type

Plastic HDPE A15 and composite shield covers are not available for these formats.

Clear width (height)
Load classEN 124-1

Manhole covers in load class D400 must always be screwed down or locked in accordance with DIN EN 124.

Configurations

Built around your site, not the catalog

Mix covers and locking mechanisms across both formats. All metal parts are hot-galvanized.

  • Ductile iron cover
  • Concrete cover
  • Paveable cover
  • LICK-LOCK locking
  • COLT/TELNET locking
  • Hex locking
  • Hot-galvanized
  • 2-piece covers
Build it with us

Specify FODIS for your next deployment

Our engineering team supports planning, variant selection and site logistics — from first specification to handover.