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Garden room project · Sanctum Garden Studios

Triangular garden studio slots into the corner

A triangular garden studio by Sanctum Garden Studios, built to fit the corner of the garden, with a 4.6m front wall wide enough for French doors and sidelights.


Published 23 December 2017 · Updated 1 November 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

The acute angle garden studio
Sanctum Garden Studios  triangular garden studio with a 4.6m front wall

Triangular garden studios designed to slot into the corner of a garden are a clever solution for maximising space. This bespoke build by Sanctum Garden Studios showcases some of the sharpest angles we’ve seen in such designs.

At a glance

  • Shape: An acute triangular plan to fit the corner of the garden, with the longest side, the 4.6m front wall, taking uPVC French doors and floor-to-ceiling sidelights.
  • Cladding: Western Red Cedar on the front; Rangewood weatherboard, made from wood strands and resins, on the rear and left-hand walls near the boundaries.
  • Tight to the boundary: Rangewood is fixed to the panels before assembly, so no working space is needed round the building.
  • Base and interior: A steel floor frame made for this building for accurate levelling, and plasterboarded walls and ceiling, skimmed by a local plasterer the owner hired.
  • Company: Sanctum Garden Studios, who designed the studio for the owner, Nigel.

Part of our garden room cladding guide →

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Design

A bespoke design for a unique space

Sanctum Garden Studios were approached by Nigel, a customer seeking a custom garden studio that would fit neatly into the corner of his garden. The result was an acute triangular floorplan, with the longest side-the front wall-measuring 4.6 metres. This allowed ample room for a wide set of uPVC French doors, complemented by floor-to-ceiling sidelights.

The front wall has cedar cladding
Western Red Cedar  on the front wall
Cladding

Premium cladding for a stylish finish

The front elevation is clad in timeless Western Red Cedar, adding natural warmth to the design. For the rear and left-hand walls, which are positioned close to the garden boundaries, a low-maintenance weatherboard cladding was used. Sanctum Garden Studios selected Rangewood, a durable material made from wood strands and resins. This highly resilient cladding is available in various colours, with dark grey being particularly popular.

Unlike traditional cladding methods, Rangewood can be pre-fixed to the panels before assembly, eliminating the need for access space around the building. This is a key advantage, as some companies require at least 450mm clearance for installation, which can compromise interior space.

Chippings make the epode roof look neat
The roof  finished with chippings
Base and interior

Smart foundations and custom interiors

For the studio’s base, a steel floor frame was custom-manufactured, ensuring precise levelling and quick installation of the insulated floor panels.

Inside, the walls and ceiling were plasterboarded. Nigel opted to hire a local plasterer to skim the interior, as Sanctum Garden Studios advise that this approach can sometimes be more cost-effective than extending the on-site work of their team.

Planning something similar?

Learn more about Sanctum Garden Studios

To learn more about creating a bespoke garden room, chat with the Sanctum Garden Studios team on 01257 279 161 or email info@sanctumgardenstudios.com. Explore www.sanctumgardenstudios.com to view their range of garden room options.

Visit Sanctum Garden Studios More Sanctum Garden Studios projects
More projects like this Corner garden rooms Garden room cladding Garden room foundations
Read the guides What garden rooms cost Permitted development What is a garden room?

Published 23 December 2017 · Photographs courtesy of Sanctum Garden Studios.

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