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    [1] =>  2019-05-23
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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.

Pressure Treated Grandmaster Fusion With Partition Wall

This product is Pressure Treated - We guarantee for 15 years*

From £36.54 / month


In stock
Mortice lock and lockable windows
Extra tall inside
Stronger and taller double doors
16mm cladding upgrade
15 year anti rot guarantee
Fully opening windows

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

High Quality Materials

Thicker & doubled up timber framing with shiplap construction.

Optionally Insulated with Multi-foil Insulation

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

15 year Anti Rot Guarantee

Pressure treated to protect against fungal decay and rot.

Fits through a standard door

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

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 Grandmaster 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.

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

Choose from one of the sizes we offer. Our Traditional Windowed 2 Doors Grandmaster Workshop Shed comes with the following as standard –

High quality materials

We only use the very best materials for our garden buildings.

15 year anti-rot guarantee

Peace of mind that your building will stand proud for years.

Longer lasting

Our buildings are designed to last.

Thicker and doubled up framing

Thicker than standard. Key supports are doubled up for extra support.

Extra tall interior

  • Room for taller items
  • A comfortable space for all day use

Lockable windows

Extra security to keep your belongings safe.

Extra strong, double sided roof trusses

Extra support to maximise the roof strength.


Easy and strong tongue and groove construction

Our shiplap panels keep rainwater and other harsh elements from entering the building. This is primarily due to its construction where the panels closely interlock, leaving no space for water penetration and weather damage.