Evolution™ Insulated Garden Room | Premium Garden Offices
Continue Shopping
Mon-Fri / 08:30 - 21:00  |  Sat-Sun / 10:00 - 20:00
PHONE LINES OPEN UNTIL 9:00PM CALL NOW
0
Basket

Project Timber accepts Visa, Mastercard, Maestro through our 100% secure SSL payment providers - WorldPay & PayPal.

cards
01777 802300 - Click here to call now!
Oops..
It appears you are visiting us on Internet Explorer 9 or earlier. Please upgrade to a later version of Internet Explorer. Alternatively, you can view our website on Google Chrome, Mozilla Firefox or Apple Safari.
15-YEAR ANTI-ROT GUARANTEE
Terms and conditions apply
FREE PRESSURE TREATMENT
on selected products*
FREE NEXT DAY OR PICK A DATE DELIVERY ON CHECKOUT

The Project Timber Evolution Cedar Insulated Garden Room

My Den Pressure Treated Version

Cool in the Summer, Warm in the Winter
  • Zero Maintenance*
  • Insulated as standard
  • Double glazed as standard
  • Rubber Roof as standard
  • Free UK Delivery*
  • Free UK Delivery*
  • UPVC Doors and Windows Included
  • Laminate Flooring Included as Standard
  • Assembly Service Included as Standard
  • Plain Internal Wall Cladding

For 10% discount use code SPRING10

1 Rubber Roof

  • FREE RUBBER ROOF
    WORTH £
In stock
Multiple sizes available
Easy composite cladding construction
Multi purpose interior
Fully insulated
10 year anti rot guarantee

2 Choose your size

  • 8 x 8
    £20,274 £18,247
  • 10 x 8
    £22,374 £20,137
  • 12 x 8
    £27,846 £25,061
  • 10 x 10
    £29,278 £26,350
  • 10 x 12
    £31,176 £28,058
  • 12 x 10
    £31,386 £28,247
  • 14 x 8
    £32,786 £29,507
  • 12 x 12
    £32,826 £29,543
  • 14 x 10
    £35,720 £32,148
  • 16 x 8
    £36,643 £32,979
  • 18 x 8
    £39,348 £35,413
  • 16 x 10
    £39,741 £35,767
  • 14 x 12
    £41,174 £37,057
  • 20 x 8
    £41,673 £37,506
  • 16 x 12
    £44,123 £39,711
  • 18 x 10
    £45,589 £41,030
  • 18 x 12
    £48,119 £43,307
  • 20 x 10
    £48,130 £43,317
  • 20 x 12
    £51,196 £46,076

4 Choose your front window style

Please note: UPVC will increase the lead time of the building. Please contact us before placing your order.

 Details

X

  • Fixed front window options

    The Evolution Garden Room comes with fixed timber windows as standard. These also come with toughened glass double glazing to lock the temperature in. The fixed windows are extra tall and give you excellent views of your garden and letting lots of natural light into your building.

  • Opening Front windows

    We also offer the option to upgrade your fixed windows to opening windows so you can let in even more fresh air into your building. All of the opening windows come with casement stays and hinges as standard.

  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0
  • Fixed Front Window - UPVC - White
    £0
  • Fixed Front Window - UPVC - Light Oak
    £0
  • Fixed Front Window - UPVC - Graphite
    £0

Fixed Front Window - UPVC - White

£0

5 Choose your side panels

 Details

X

  • No side door

    Standard option, your building will come with one opening window each side.

  • With boarded side door

    Select this option for a boarded side entrance door into your building. We will contact you to confirm the location.

  • With Glazed Side Door

    Select this option for a glazed side entrance door into your building. We will contact you to confirm the location.

  • One extra side opening window

  • Extra single side door and Plain side

  • Extra side single door and one opening window

  • Extra side single door and two fixed windows

  • 4 extra side fixed windows

  • No Side Door
    £0
  • 1 Extra UPVC Side Window
    £665
  • 2 Extra UPVC Side Window
    £1,019
  • With UPVC Glazed Side Door
    £1,151
  • 1 Extra UPVC Side Window and UPVC Glazed Side Door
    £1,504

6 Choose your floor

 Details watch

X

  • 11mm Tongue and Groove Floor

    If you are planning to use your building more frequently and have furniture items to add, then an 11mm floor is a more solid choice. It is constructed with engineered interlocking boards, giving you a stronger floor to walk on and store items. Our tongue and groove floors come untreated but with pressure treated joists as standard.

  • 19mm Tongue and Groove Floor

    If you will be having heavier items, such as storage shelves and sofas, then a 19mm tongue and groove floor will support all of your items. The tongue and groove floor is untreated but comes with pressure treated joists to make them more resistant to ground moisture.

  • 28mm Tongue and Groove Floor

    For the ultimate heavy duty floor, choosing our 28mm thickness will give you an extremely solid and extra durable floor which you can store heavy items, such as gym equipment and large furniture items. The 28mm thickness also offers superior strength and rigidity and is strong enough to support the weight of a van driving over it!

  • Pressure Treated 11mm T&G Floor
    £0
  • Pressure Treated 19mm T&G Floor
    £127
  • Pressure Treated 28mm T&G Floor
    £283

7 Choose your guttering

 Details watch

X

  • Guttering

    Adding guttering to your building is a great way to help reduce any water run-off down the sides of your building. This can help prevent any moisture ingress and any water pooling around your building, especially in particularly damp or exposed areas. You can also use your guttering to collect rainwater with a water butt, which is ideal if you have a lot of plants and need a lot of water during the dryer summer months.

  • None
    £0
  • Guttering
    £61

8 Choose your paint colour

 Details watch

X

  • Doormouse

    Doormouse Paint

  • Doulting Stone

    Doulting Stone Paint

  • Foxwhelp Red

    Foxwhelp Red Paint

  • Goblin Blue

    Goblin Blue Paint

  • Moreland Green

    Moreland Green Paint

  • Rock Rose

    Rock Rose Paint

  • Sedge Green

    Sedge Green Paint

  • None
    £0
  • Doormouse Grey
    £138
  • Doulting Stone
    £138
  • Foxwhelp Red
    £138
  • Goblin Blue
    £138
  • Moorland Green
    £138
  • Sedge Green
    £138

9 Choose your colour trim

 Details watch

X

  • Swan White

    Swan White Trim Paint

  • Chantry Cream

    Chantry Cream Trim Paint

  • None
    £0
  • Swan White
    £29
  • Chantry Cream
    £29

10 Choose your laminate floor

 Details

X

  • Laminated Floor Trend Oak Grey

    Choose from our laminated flooring options giving your buildings floor a clean and smooth surface and for a more professional look.

  • Laminated Floor Summer Oak Brown

    Our Laminated flooring comes in packs of 2.39m lengths along with underlay.

  • Laminated Floor - Trend Oak Grey
    £0
  • Laminated Floor - Summer Oak Brown
    £0

11 Choose your building assembly service

 Details

X

  • Assembly Team

  • Assembly Service Postcodes

    We are currently only able to offer the service to limited postcodes – The postcodes for Assembly are AL, B, BB, BD, BL, BR, CB, CH, CM, CO, CR, CV, CW, DA, DE, DH, DL, DN, DY, E, EN, GU, HA, HD, HG, HR, HP, HU, HX, IG, IP, KT, L, LE, LN, LU, M, ME, MK, N, NE, NG, NN, NR, NW, OL, OX, PE, PR, RG, RH, RM, S, SG, SK, SL, SM, SN, SR, SS, ST, SW, TF, TS, TW, UB, W, WA, WD, WF, WN, WR, WS and YO. If you are outside the above postcodes we may be able to assemble at an extra charge.

    Call us for more information.

  • Building Assembly Service
    £0

12 Choose your roof cover

X

  • Rubber Roof

    Select this option for full lifetime (20 Year) protection. Saving time and money replacing standard felt.

  • Rubber Roof
    £0

£1,393

  • Size, Side Panels, Floor, Guttering, Paint Colour, Colour Trim, Laminate Floor, Building Assembly Service, Roof CoverPlease choose an option.
  • Window and Door MaterialThe chosen option is incompatible with your previous selections.

Available for delivery in 5-10 working days.

Disclaimer : Painted buildings are for illustration purposes only. All buildings are in their standard or pressure treated colour upon delivery. A distance of 1m must be kept between the boundary and your building to allow access for annual treatment and to comply with the anti-rot guarantee*.

The Project Timber Evolution Cedar Insulated Garden Room

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 double door, double glazed as standard
  • Opening side windows
  • EPDM Rubber Roof
  • Tongue and groove floor, multiple thickness available
Evolution Insulated Garden Office
Fully Insulated

Fully Insulated

The Evolution Cedar comes fully insulated as standard with our multi-foil insulated panels. With the same U-values as 120mm glass wool insulation, your building will lock in the heat in the colder months and reflect the heat in the warmer months. This means your building will be comfortable to use all year round.

Our smooth to the touch, beaded and primed mdf internal cladding gives the inside of your building a premium feel. The multi-foil insulation is housed inside the panel which traps the air inside, with just an 80mm panel thickness, which means that your internal space isn’t affected by the insulation, maximising your internal space.

Hand Crafted

Developed by our highly experienced design team of designers, the Evolution Cedar is our flagship range, where only the best materials are used to create them. Handcrafted with hand-selected Western Red Cedar timber at our manufacturing facility on the cusp of Sherwood Forest, to ensure your building is of the highest quality.
Hand Crafted
Team Hard Work

We do the hard work for you

The Evolution Cedar is made with pre-assembled panels, which means assembly is much quicker compared to assembling a log cabin. This means that you can spend less time assembling and more time enjoying your building. It could also save you money on assembly costs.

To make it even easier for you, we pre-insulated each panel with our multi-foil insulation so you don’t have to. With our easy to follow, stage by stage instructions and all fixings included, we aim to make your experience a pleasant one.

The Perfect Garden Office

If you are looking for a spacious home office, or something smaller, the Evolution Cedar has a wide range of sizes available to accommodate your needs. With upvc windows and doors as standard and fully insulated panels, you can use your building all year round and for a wide range of uses. With its tongue and groove floor and roof, your building is extra durable and suitable for those heavier items. With its Western Red Cedar cladding and double glazed upvc windows and doors as standard, it has even better acoustic absorbing properties, making it perfectly suited for a quiet place to work or exercise in a home gym, or even a music room. With its modular construction, you can also choose to have an extra door on the side or an extra window, so you can tailor your building to your requirements. If you would like a more bespoke building to what we have on our website, please give us a call and we will design you the perfect building.
Create your own Evolution
Team Hard Work

UPVC Windows and Doors as Standard

The Evolution Cedar comes with UPVC windows and doors as standard with a choice of three colours; white, light oak, or graphite. Our UPVC windows and doors have greater U-values than our timber framing, and also come with 28mm double glazing, made up of 4mm toughened glass with a 20mm spacer. Coupled with our multi-foil insulation, your building is suitable for all year-round use. Both single and double doors come with multi-point locking systems to ensure your items are safe and secure inside. They are manufactured in the UK and tested in compliance with quality standards, making them ideal for your building.

Bring The Outside In

Enjoy panoramic views from your garden with tall fixed windows at the front and opening windows on the sides. If you are working from home the Evolution Cedar creates the perfect working environment where you can still enjoy the views of your garden from inside your building. With tall and wide double doors, you can enter your building with ease, and have enough space to fit larger furniture items through the doors. If you require additional access, such as a single door on the side, please select one of our side options or give us a call.
Create your own Evolution
Team Hard Work

Lasting Protection

Our heavy-duty EPDM rubber roof is included as standard, which will provide up to 50 years of weather protection. Due to the increased durability of the rubber roof covering, you won’t need to change the roof covering over time, unlike standard felt, which means your building requires less maintenance. The extra protection also means that your building will last even longer than it would having just standard felt, giving you even better value for money.

Easy self assembly

When it comes to assembly, your building has been designed to be simple to install where a large building is as simple to assembly as a smaller building due to be being constructed from modular panels.

Your building will be supplied flat packed in modular panels with instructions and all of the fixings required. The instructions show how each panel is positioned and fixed in place clearly in simple stages. This means that if you have some basic DIY knowledge and experience you will be able to assemble your building. It is recommended that two people assemble the building so that the parts can be held in place and fitted at the same time, for safety and to handle any heavier parts.

Before the building arrives, a solid level base must be prepared ready before assembly and you should also have space outside your house for the delivery to be made. Our panels are also pre-lined with our multi-foil insulation so that all you need to fix for the insulation is the internal cladding, making the build an enjoyable experience.

Easy selft assembly

The Project Timber Evolution Cedar Insulated Garden Room All Sizes

Select options
SCROLL UP TO SEE YOUR BUILDING
  • Size
    Please Select..
  • Window and Door Material
    Please Select..
  • Front Window Style
    Please Select..
  • Side Panels
    Please Select..
  • Floor
    Please Select..
  • Guttering
    Please Select..
  • Paint Colour
    Please Select..
  • Colour Trim
    Please Select..
  • Laminate Floor
    Please Select..
  • Building Assembly Service
    Please Select..
  • Roof Cover
    Please Select..
        
Buy Now
PRICE

Delivery from Thu 29 May*
Check Delivery Time
Simply enter your postcode to customise delivery times to your address.
Request a callback