Cast Iron Box Gutter

About Cast Iron Box Guttering

Cast iron box guttering is a square profile cast iron gutter with a flat base and straight sides. Box gutters were traditionally used on commercial buildings, public buildings, and larger residential properties where a more structured, angular appearance was preferred over half round or ogee profiles. The flat base provides excellent water carrying capacity and the square profile sits neatly against the fascia. Supplied primed and ready for painting.

At Gutters.co.uk we stock cast iron box guttering with all fittings for fast UK delivery.

Cast Iron Box Gutter Components

Box Gutter Lengths available in 1.83m (6ft) lengths. Square profile with flat base and straight sides. Supplied primed.

Fascia Brackets brackets designed for the box gutter profile. Shop Gutter Brackets

Union Clips used to join two gutter lengths together.

Angles angle fittings for turning corners.

Stop Ends fitted at each open end of the gutter run.

Running Outlets the connection point between the gutter and the downpipe.

Cast Iron Box Gutter Specifications

Profile: box (square with flat base)

Material: cast iron, supplied primed

Gutter lengths: 1.83m (6ft)

Standard: BS 460

When to Use Cast Iron Box Gutter

Box gutters are less common than half round or ogee on domestic properties but are found on certain types of building. Common applications include commercial and industrial buildings from the Victorian and Edwardian era, warehouses and workshops with traditional cast iron rainwater systems, public buildings such as schools, libraries, and municipal buildings, residential properties where the original installation used box profile, and properties where a square, angular appearance suits the architectural style better than a curved profile.

Other Cast Iron Profiles

112mm Half Round standard profile for most domestic period properties.

Victorian Ogee decorative S shaped profile for period facades.

Moulded Ogee G46 wider ogee for grander properties.

Deep Half Round increased capacity for larger roof areas.

Beaded Half Round half round with decorative bead detail.

Cast Iron Box Gutter FAQ

Is box gutter the same as a parapet gutter? No. A parapet gutter is a concealed gutter built into the roof structure behind a parapet wall. Cast iron box gutter is an external gutter fixed to the fascia board like half round or ogee, but with a square profile.

Does it need painting? Yes. Supplied primed, must be painted before installation and repainted every 3 to 5 years to prevent rust.

Is there a PVC or aluminium equivalent? FloPlast SquareLine and Marshall Tufflex SquareLine offer square PVC profiles. For aluminium, the Marley Alutec Evolve range focuses on half round and deepflow profiles rather than box.

Can I connect box gutter to half round downpipe? Yes. The outlet connects to standard cast iron downpipe regardless of the gutter profile above.

How heavy is box gutter? Similar weight to other cast iron profiles. Two people recommended for installation. Fascia boards must be in good condition.