The Evolution is a fully insulated composite garden room with double glazing, an EPDM rubber roof and 80mm wall construction designed for year-round comfort.
The Evolution Insulated Garden Room is a fully insulated composite garden room with double glazed windows and 80mm insulated walls for year-round comfort. A UPVC door and smooth primed interior give it a warm, ready-to-decorate finish, while pre-assembled modular panels make for a straightforward build. It's finished with an EPDM rubber roof and backed by a 15-year anti-rot guarantee* for lasting peace of mind.
Prices as per the live configurator. Paint/trim swatch colours are indicative approximations.
Composite boards resist moisture, impact and weathering better than standard timber, for a longer-lasting finish.
Fully insulated walls, floor and roof with a smooth primed interior, ready to decorate and use straight away.
Double glazed windows and doors included as standard, for better warmth and year-round use.
Composite materials are guaranteed against fungal decay and rot for 15 years.
An 11mm tongue and groove roof deck with multi-foil insulation and an EPDM rubber covering keeps it weatherproof for years.
Panels arrive built and ready to bolt together, so assembly is quick and straightforward.
No hidden extras and no surprise add-ons. Your Garden Office arrives complete — every panel, fixing and fitting ready to go.
More resistant to moisture, impact and weathering than standard timber cladding.
Walls, floor and roof insulated with multi-foil for year-round comfort.
Wide double doors as standard for easy access and a bright, open feel.
Double glazed windows and doors included as standard for better warmth.
A substantial 80mm wall build-up for strength and thermal performance.
Composite materials are guaranteed against fungal decay and rot for 15 years.
Pre-assembled modular panels with illustrated instructions and all fixings.
Free delivery to most UK mainland postcodes on a day that suits you.
The Evolution is insulated in the walls, floor and roof with high-performance multi-foil insulation. Its layered design traps heat in the cold months and reflects it in summer, achieving U-values comparable to 120mm of glass wool, in a far slimmer profile that leaves more room inside. An EPDM rubber roof is included as standard for long-lasting, maintenance-free weather protection.
Each panel is built on a 27x44mm structural timber frame and clad in composite boards that are more resistant to moisture, impact and weathering than standard tongue and groove timber. The whole building should be painted or treated annually to maintain the anti-rot guarantee and keep the structure in the best condition.
Each panel is built on a 27x44mm structural timber frame and clad in composite boards that are more resistant to moisture, impact and weathering than standard tongue and groove timber. The whole building should be painted or treated annually to maintain the anti-rot guarantee and keep the structure in the best condition.
Arrives as pre-assembled modular panels in sections small enough to fit through a standard door. Stage-by-stage illustrated instructions and every fixing and fitting included in the same delivery.
Upgrade the floor for extra strength underfoot.
Choose from a wide range of sizes to suit your garden and how you plan to use the space.
Upgrade to UPVC doors and windows for a low-maintenance, double glazed finish.
Add guttering and a downpipe to control rainwater run-off.
Choose from a range of paint colours to match your garden.
Add a pressure treated timber base for a level, long-lasting foundation.
Turn the bottom of your garden into a private, professional workspace, quiet, insulated and distraction-free. Just as at home as a gym, studio, hobby room or therapy space.
| Overall Width | 253 cm |
| Overall Depth | 229.2 cm |
| Total Wall Thickness (incl. insulation) | 80 mm |
| Width (internal) | 229 cm |
| Depth (internal) | 174.3 cm |
| Eaves Height (inc. floor) | 230.7 cm |
| Eaves Height (excl. floor) | 218.2 cm |
| Ridge Height (inc. floor) | 240.2 cm |
| Ridge Height (excl. floor) | 227.7 cm |
| Eaves Height (internal) | 204.4 cm |
| Ridge Height (internal) | 212.4 cm |
| Door Height | 180 cm |
| Door Width | 73 cm |
| Door Opening (H × W) | H180 × W73 cm |
| Glazing Thickness | 4–20–4 mm |
| Frame Thickness (H × W) | 2.7 × 4.4 cm |
| Overall Floor Size (W × D) | 249 × 194.3 cm |
| Base Size | 244 × 189.3 cm |
| Cladding | 9mm LP Strongcore composite |
| Floor material | Tongue & groove |
| Roof material | Galvanised steel & foam insulation |
| Roof covering | Galvanised steel |
| Glazing | Double glazing |
| Building type | Garden room |
| Windows | 4 |
| Roof style | Pent |
| Cladding style | Composite board |
| Locking system | UPVC multi-point |
| U-value, metal roof | 0.49 W/(m²·K) |
| U-value, walls & floor | 0.31 W/(m²·K) |
| Pre-assembled panels | Yes |
| Interchangeable windows | No |
| Fixtures & fittings | Yes |
Free delivery to selected postcodes, and Made in Britain.
"Genuinely warm in winter — I work in here every day now. Build quality is excellent."
"Panels went together far faster than I expected. The composite finish looks premium."
"From order to install was seamless. The team kept me informed the whole way."
British-made garden buildings, designed and built in Nottinghamshire.
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