Aluminium Box Gutter Corner - 90° Internal Angle for Seamless Drainage Solutions

The Aluminium Box Gutter Corner 90° Internal Angle is designed to create a clean inward 90 degree turn within an aluminium box gutter system. It helps connect two gutter runs around an internal roofline corner, supporting a neater drainage layout on residential, commercial, and refurbishment projects.

This product is available in 100mm x 75mm, 125mm x 100mm, and 150mm x 100mm size options, with a RAL colour selection available on the product page. The current product page lists the price from £35.50 excluding VAT and £42.60 including VAT. It is also marked as a custom-fabricated item made to the selected size and finish, so measurements and colour choice should be checked carefully before ordering.

For a complete roof drainage setup, this internal corner can be planned alongside matching aluminium rainwater goods, aluminium box gutter external stopends, aluminium box internal stopends, and suitable downpipe connections.

Key Benefits.

• Creates a neat 90 degree internal angle for aluminium box gutter systems.

• Helps continue gutter runs around inward-facing roofline corners.

• Available in 100mm x 75mm, 125mm x 100mm, and 150mm x 100mm size options.

• RAL colour selection helps match the corner with gutters, fascia, soffits, copings, cladding, and downpipes.

• Aluminium construction provides a lightweight and corrosion-resistant option for external rainwater systems.

• Suitable for residential, commercial, and refurbishment projects where a tidy internal gutter angle is required.

• Can be used as part of a wider rainwater goods system for a more coordinated roof drainage layout.

Product Details and Specification.

These details are based on the current Online Metal Store Ltd product page, which lists the product title, price, size options, RAL colour option, and custom-fabricated item notice.

Where This Product Is Commonly Used.

This aluminium box gutter 90° internal corner is commonly used on homes, extensions, flat roof edges, commercial units, office buildings, schools, refurbishment projects, and modern roofline drainage systems. It is useful where the gutter needs to turn around an inward-facing corner while keeping the roofline neat and consistent.

For wider roof drainage planning, buyers can also browse the full aluminium rainwater goods range. If the project also needs an outward-facing corner, use the matching Aluminium Box Gutter 90° External Corner.

Why Aluminium Is a Good Choice.

Aluminium is a practical material for gutter corners because it is lightweight, easy to handle, corrosion resistant, and suitable for long-term external use. It also works well for modern architectural roofline products where clean edges and colour matching are important.

Aluminium is also a recyclable building material. The Aluminum Association states that aluminium is highly durable, 100% recyclable, and can be recycled repeatedly without degrading its inherent value. This makes aluminium a sensible option for buyers who want strong, long-lasting rainwater goods with good material recovery potential at the end of life.

Finish and Colour Options.

This product includes a RAL colour selection option, allowing the internal gutter corner to match or coordinate with other visible roofline components. This is useful when the same finish is required across gutters, downpipes, fascia, soffits, aluminium copings, cladding, or window and door surrounds.

For a coordinated roofline, you can also view Fascia and Soffits and Aluminium Copings from Online Metal Store Ltd.

For external architectural finishes, QUALICOAT UK & Ireland explains that QUALICOAT is focused on maintaining and promoting powder coating quality on aluminium and aluminium alloys for architectural applications.

Installation and Ordering Notes.

Before ordering, check whether your project requires the 100mm x 75mm, 125mm x 100mm, or 150mm x 100mm size. You should also confirm the internal corner direction, RAL colour, adjoining gutter lengths, outlet position, stopends, joiners, brackets, sealant, and downpipe connections.

This product is custom fabricated to the selected size and finish, so the size and finish should be checked carefully before purchase. The product page states that custom-fabricated items are non-returnable unless faulty.

For larger drainage layouts, Approved Document H is a useful UK reference because it provides guidance on drainage, including surface water and rainwater.

If the system needs other matching components, consider the Aluminium Box Gutter External Stopend, Aluminium Box Internal Stopend, and Aluminium Rectangular Hopper Head Box Outlet. These related products list matching size options and RAL colour selection for rainwater system coordination.

Why Buy From Online Metal Store Ltd.

Online Metal Store Ltd supplies aluminium rainwater goods and architectural metal products for UK building, roofing, and refurbishment projects. The website includes product categories for rainwater systems, aluminium copings, fascia and soffits, accessories, metal planters, and aluminium door canopy products.

This product is useful for buyers who need a custom-fabricated aluminium gutter corner in a selected size and RAL colour. Ordering compatible rainwater goods from the same supplier can also help keep the guttering, stopends, corners, outlets, and downpipe connections more consistent across the project.

If you are unsure about sizing, colour matching, or system compatibility, use the Contact Us page before ordering.

FAQ Section.

What is an aluminium box gutter 90° internal corner used for?

It is used to create a 90 degree inward turn in an aluminium box gutter system. This helps the gutter follow an internal roofline corner while keeping the drainage layout neat.

What sizes are available?

The product page lists 100mm x 75mm, 125mm x 100mm, and 150mm x 100mm size options.

Can I choose a RAL colour?

Yes. The product page includes a RAL colour selection option, allowing the corner to coordinate with the rest of the guttering and roofline system.

Is this the same as an external gutter corner?

No. This product is for an internal 90 degree angle. For an outward-facing corner, use the Aluminium Box Gutter 90° External Corner.

What other fittings may I need?

Depending on the layout, you may need box gutter lengths, outlets, stopends, joiners, brackets, sealant, fixings, and downpipe connections.

Is this product returnable?

The product page states that this is a custom-fabricated item made to the selected size and finish, and it is non-returnable unless faulty.

What should I check before ordering?

Check the gutter size, internal corner direction, RAL colour, matching fittings, outlet position, and full rainwater drainage layout before placing the order.

Choose the correct size and RAL colour for your aluminium box gutter 90° internal corner before ordering. If you are unsure about compatibility, corner direction, or the fittings needed for your rainwater system, contact Online Metal Store Ltd for guidance before purchase.