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50 years experience
Manufactured in Great Britain
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  • We'll deliver any product to your home, 5 days a week and even in two working days.
  • We schedule deliveries from 8am until 6pm.
  • Free delivery is also available.
  • We'll text you a 3 hour timeslot on the morning of your delivery.
  • Your driver will attempt to call you when they're on the way.

Diplomat Grandmaster Insulated Garden Room

From £73.22 / month

OPTIONALLY INSULATED

For 10% discount use code SUMMER10
In stock
Mortice lock and lockable windows
Extra tall inside
Stronger and taller double doors
16mm cladding upgrade
10 year anti rot guarantee
Fully opening windows
Fully insulated

Disclaimer : Painted buildings are for illustration purposes only. All buildings are on their standard or pressure treated colour upon delivery.

High Quality Materials

Composite timber and tongue and groove construction.

Insulated as Standard with Multi-foil Insulation

Multi-foil Insulation locks the heat in with the same U-Values as 120mm Glass Wool Insulation

10 year Anti Rot Guarantee

Treated to protect against fungal decay and rot

Fits through a standard door

Modular sections that fit through your door and make assembly easier.

What’s included?

  • All fixings and fittings
  • Easy to follow instructions
  • Pre-assembled panels, roof and floor
  • Insulation and interior cladding
  • Extra high ridge and eaves height
  • Long fixed windows and door, double glazed as standard
  • Opening side windows
  • Signature mineral felt

Hand Crafted

Grandmaster is built by our fully trained product assembly team using hand-selected graded scandinavian slow grown timber at our facility in Nottinghamshire, in the cusp of Sherwood Forest.

All of products are picked, checked and packed for delivery making sure everything meets our high standards.

We do the hard work for you

Grandmaster comes with pre-assembled panels which we build in house and check before it’s delivered to your door. Making the installation of Grandmaster easier for you or your installer, whilst saving you time and money

Alongside this we have created a set of easy to follow instructions which are sent out with every building, making your Evolution experience a pleasant one.

Insulation Upgrade

We can offer an insulation package on Grandmaster giving you even more options and possibilities when it comes to decorating your building.

All of products are picked, checked and packed for delivery making sure everything meets our high standards.

Build Grandmaster to your specification

Just like the Evolution, the Grandmaster is built up of modular panels. Meaning that you can customise your building to your needs. Choose from base-coated or pressure treated finsh which comes with a 15 year anti-rot guarantee. Upgrades from external cladding thickness (11mm or 16mm) to flooring thickness (11mm, 19mm or 28mm) providing a stonger base for heavier applications. You have two glazing options with Grandmaster the first being styrene forseasonal use or double glazing to enjoy your Grandmaster all year round. For extra protection we can upgrade you to a rubber roof protecting your outdoor building up to 50 years.

Evolution Insulated Garden Office

Start creating your Grandmaster today

At Project Timber, we aim to provide you with the best customer experience as possible. We want to help you find the perfect outdoor building, exactly the way you want it

Features

Include

High Quality Materials

HIgh quality 11mm tongue & groove shiplap as standard on the Diplomat with a 16mm upgrade option available

Include

Insulated as standard with Multi-foil Insulation

Multi-foil Insulation locks the heat in with the same U-Values as 120mm Glass Wool Insulation

Include

Profiled internal walls as standard

Durable, attractive, and premium appearance on the inside

Include

10 year anti-rot guarantee

Peace of mind that your building will stand proud for years. (15 Years if pressure treated)

Include

Fully braced double glazed windows & doors as standard

Double glazed doors & windows as standard Open fully for extra comfort Extra high for more headroom Fully braced for increased strength

Include

Mortice lock and lockable windows

Extra high security with a three lever sash lock and lockable windows to keep your belongings safe.

Include

Floor options available

11mm tongue & groove floor as standard. Thicker floor options available

Include

Extra high eaves and ridge height

Ideal for office or personal use

Select Size
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Metric
Imperial
Overall Dimensions
Overall Width
Value
Overall Depth
Value
Width Internal
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Depth Internal
Value
Eaves & Ridge
Eaves Height Inc. Floor
Value
Eaves Height Excl. Floor
Value
Ridge Height Inc. Floor
Value
Ridge Height Excl. Floor
Value
Eaves Height Internal
Value
Ridge Height Internal
Value
Features
Windows
Value
Shed Type
Value
BillyOh Range
Value
Roof Style
Value
Fixtures & Fittings
Value
Cladding Style
Value
Locking System
Value
Interchangeable Windows
Value
Basecoat Treatment
Value
Pre-Assembled Side Panels
Value
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