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Garden room project · Bridge Garden Rooms

Garden room with 4m wide bi-fold doors

A 6m × 4m Derwent garden room with a 4m set of bi-folds and a corner window, opening onto a large composite deck.


Published 16 July 2020 · Updated 23 October 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

Garden room with 4m wide bi-fold doors by Bridge Garden Rooms
Bridge Garden Rooms  6m × 4m, the Derwent range

Your choice of doors has a significant impact on the appearance, functionality, and enjoyment of your garden room. This example of Bridge Garden Rooms’ Derwent Range highlights how a 4-metre set of bi-fold doors can open up a space and connect it seamlessly with the outdoors.

This spacious 6m x 4m garden room from Bridge Garden Rooms boasts a corner of floor-to-ceiling glazing, integrating the 4m-wide bi-fold doors with an additional 1100mm window. This wraparound glazing not only frames beautiful garden views but also maximises natural light, enhancing the space’s brightness and warmth.

At a glance

  • Size: 6m × 4m.
  • Glazing: 4m four-leaf bi-folds with integral blinds, and a 1100mm window round the corner.
  • Outside: Western Red Cedar, Anthracite Grey frames and skirting shaped to the slope, and a composite deck.
  • Lighting: LEDs in the roof canopy and recessed in the ceiling; plastered walls and a wooden floor inside.
  • Company: Bridge Garden Rooms, the Derwent range.

Part of our garden office guide →

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The doors

Indoor-outdoor flow with bi-fold doors

The four-leaf bi-fold doors are more than just windows to the outside-they transform the way the room feels and functions. When closed, they provide a panoramic view, bathing the interior in light. But the real magic happens when you open them. The doors concertina smoothly along their track, stacking neatly to one side, creating a wide, seamless entryway to the large composite deck. This layout extends the living space onto the deck, blending indoor and outdoor areas for an expansive feel.

With their high-spec, powder-coated aluminium frames, these doors are built for durability and style. The double-glazed panels also include integral blinds, which provide a sleek, low-maintenance solution for privacy and shade control-a worthwhile addition for any garden room with generous glazing.

Garden room with 4m wide bi-fold doors by Bridge Garden Rooms
4m bi-fold doors  opening onto the deck
Outside

Anthracite grey and Western Red Cedar: a striking combination

The Anthracite Grey frames of the bi-fold doors and window are colour-matched to the building’s skirting and roof fascias, creating a polished, unified appearance. The Bridge Garden Rooms team has also cleverly designed the skirting to accommodate the natural slope of the ground, making it look smart and well-finished.

The rich, warm tones of the Western Red Cedar cladding contrast beautifully with the darker grey elements, while the lighter grey composite decking adds a modern touch. Composite decking, now a popular choice in garden room designs, maintains its colour and durability without the upkeep of traditional wood decking.

Lighting

Roof canopy with integrated LED lighting

Enhancing both style and functionality, the garden room’s roof canopy features exterior-grade LED lights, creating a soft, welcoming glow along the building’s exterior at night. Interior LED lights are recessed into the ceiling, providing bright, efficient lighting for the fully plastered and decorated room, which is finished with a modern wooden floor.

Planning something similar?

Learn more about Bridge Garden Rooms

If you’re interested in creating a garden room with bi-fold doors, contact the Bridge Garden Rooms team on 01422 832 863 or via email at info@bridgetimber.com. To see more of their unique designs and quality finishes, visit the Bridge Garden Rooms website.

Visit Bridge Garden Rooms More Bridge Garden Rooms projects
More projects like this Garden offices 20–30sqm garden rooms
Read the guides What garden rooms cost Permitted development Building on a sloping site

Published 16 July 2020 · Photographs courtesy of Bridge Garden Rooms.

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