Highland Metal Roofing
Highland / Product imageGrated drainage box product image
Drainage / Inspect

Grated drainage box

A drainage box with an accessible grated top.

A grated drainage box provides an inspection and collection point in a suitable drainage layout. Its position, connections and access for cleaning need to be planned for the property.

Specialist option. Confirm availability, dimensions and compatibility with Highland for your project.

Technical details

Grated drainage box — dimensions

Match the letters in the drawing to the measurements below. System numbers identify the nominal size; use the listed measurements for the part itself.

Published component sizes
SystemLHD1D2
STEEL320 mm285 mm110 mm125 mm

Dimensions are in millimetres unless marked otherwise. Confirm the selected size and adjoining fittings with Highland before ordering.

Grated drainage box — technical drawing

Grated drainage box dimensioned technical drawing

Choosing the right fitting

Describe the existing roofline or drainage connection and the fitting you need. Fixing surfaces and adjoining components help establish the appropriate option.

The 3D view illustrates the component’s form. Use the published dimensions and installation instructions for the actual work.

Part of a coordinated system.

The eavestrough system is modular and jointed. Gutters, corners and downpipes connect through fittings selected to work together.

The steel eavestrough system carries a 40-year warranty from the manufacturer. Highland’s 5-year workmanship warranty is separate. Ask for the written terms and confirm the cover for your chosen components, including specialist accessories.

Explore installation & repair services →