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The Build Process

Garden Room Sanctuary / The Build

The Build Process

If you’re curious about the materials, construction process or anything else to do with a Garden Room Sanctuary North build, we’ve tried to compile as much information as possible into one page for your convenience. But if you have further questions, please do contact us directly and we’ll be happy to help.

See The Build Process

Watch our one-minute build video to see the different construction stages of how our garden rooms come together. Garden Room Sanctuary handle everything from groundworks right through to internal plastering and finishes to ensure you’re left with the finished product.

The Build Process
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Start to finish – How does it work?

Here’s a breakdown of the build process to give you a better understanding of what to expect and the materials used to assemble your garden room.
Base / Floor Construction

The base structure consists of 6 x 2 treated timbers placed at 400mm centres. Once the timber base is squared and levelled, 50mm x 50mm galvanised angle iron is concreted into the ground at each corner and at 1m intervals around the perimeter. Additionally, two steel supports are evenly spaced on each joist.

For insulation, 25mm Kingspan is installed within the cavity, followed by 75mm of Rockwool. The subfloor is then laid on top of the timber base, using 2400mm x 600mm x 18mm chipboard floor sheets, which are securely fixed in place.

Stud Wall Construction

The external stud walls are constructed and positioned on the timber base, following the perimeter. These walls are designed to include door and window openings and are built using 4×2 CLS timber with studs placed at 600mm centres. The front wall height is 2175mm, decreasing by 105mm for a 3m deep room and 140mm for a 4m deep room (a gradient of approximately 2 degrees, or 35mm per meter).

The walls are externally clad with 11mm OSB sheets, which extend flush to the bottom of the 6×2 base. The exterior is then wrapped with breathable roof felt. Horizontally, 50mm x 25mm timber battens are fixed from bottom to top at 450mm centres. A 6×2 timber lintel is installed above the door opening to support the roof.

Door and Window Installation

The door and window are now installed. Our standard setup includes a French door with two side panels, totalling 2500mm x 2020mm. The door itself measures 1500mm, to include 500mm panels on each side. The window, measuring 1600mm in height and 600mm in width, features a half-split design with the top section opening. Both the door and window are finished in anthracite grey for a modern aesthetic.

Stud Wall Insulation and Plasterboard Installation

The stud walls are first fitted with electrical cables. A 75mm layer of Rockwool is installed within the cavities, followed by a 25mm layer of Kingspan on the interior. Finally, the walls are lined with plasterboard and finished with plaster.

External Cladding and Decking Installation

The exterior of the room is now clad vertically with Western Red Cedar, starting 150mm above the bottom of the timber base and extending flush to the roof. The cladding measures 86mm x 18mm with a V-groove profile. A 100mm cedar fascia board is installed along the roofline. An anthracite grey PVC board is then fixed along the bottom of the timber base below the cladding line. Finally, timber decking is constructed, extending 1m along the front elevation.

Internal Finishing

The internal finishing begins with the installation of oak laminate flooring, measuring 200mm x 1200mm x 6mm. This is complemented by 100mm x 18mm pencil round MDF skirting boards. Finally, electrical sockets and lights, all in brushed chrome, are fitted to complete the interior.

Hear From Our Customers

Our customers’ satisfaction speaks for itself: we’re proud to be rated 4.7/5 on Google. See what our customers have to say about their garden rooms and their experience with us.

How Do I Get Started?

Firstly, simply contact us….

From this we’ll be able to give you more specific information around pricing, lead times, specifications and any other queries you might have.

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