Pressure Treated Grandmaster Fusion with Side Shed
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FREE NEXT DAY DELIVERY
on selected postcodes*
15-YEAR ANTI-ROT GUARANTEE
Terms and conditions apply
FREE PRESSURE TREATMENT
on selected products*
0% APR
with £0 deposit

Disclaimer : Painted buildings are for illustration purposes only. All buildings are in their standard or pressure treated colour upon delivery where the colour may vary from those shown. Adequate distance must be kept between the boundary and your building to allow access to apply the annual treatment to comply with the anti-rot guarantee*.

What our customers say

  • James, Merseyside
    "Fantastic communication and great service. Excellent quality shed. Would highly recommend."
FREE NEXT DAY OR PICK A DATE DELIVERY ON CHECKOUT

Pressure Treated Grandmaster Fusion with Side Shed

Free Anti-Rot Treatment - Guaranteed for 15 years*
  • Extra STRONG
  • EXTRA TALL
  • Free UK Delivery*
  • UK Manufactured By Us
  • Fully Pressure Treated*
  • Multiple Design Options
  • Upgrade to Glass Double Glazing
  • Shatter Resistant Styrene Glazing
  • Assembly time is 4x faster than a log cabin!

For 10% discount use code SPRING10

1 Choose your treatment

  • Standard Dip Treatment
  • FREE PRESSURE TREATMENT
    WORTH £750
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

2 Choose your size

  • 12ft x 8ft pressure treated grandmaster fusion with partition wall
    12 x 8
    £2,499 £2,249
  • 14ft x 8ft pressure treated grandmaster fusion with partition wall
    14 x 8
    £2,699 £2,429
  • 16 x 8
    £2,949 £2,654
  • 14x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    14 x 10
    £3,399 £3,059
  • Placeholder
    18 x 8
    £3,449 £3,104
  • 20ft x 8ft pressure treated grandmaster fusion with partition wall
    20 x 8
    £3,649 £3,284
  • 16x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    16 x 10
    £3,699 £3,329
  • 14 x 12
    £3,749 £3,374
  • 18x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    18 x 10
    £3,849 £3,464
  • 22x8 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    22 x 8
    £3,949 £3,554
  • 16x12 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding with timber windows and doors Main View
    16 x 12
    £4,099 £3,689
  • 20x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    20 x 10
    £4,199 £3,779
  • 24 x 8
    £4,249 £3,824
  • 18 x 12
    £4,549 £4,094
  • 22x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    22 x 10
    £4,599 £4,139
  • 14 x 14
    £4,699 £4,229
  • 16ft x 14ft pressure treated grandmaster fusion with partition wall
    16 x 14
    £4,999 £4,499
  • 24x10 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding and upvc windows and doors and painted
    24 x 10
    £4,999 £4,499
  • 20x12 Grandmaster Fusion Summerhouse with shiplap pressure treated cladding with timber windows and doors Main View
    20 x 12
    £5,099 £4,589
  • 22 x 12
    £5,549 £4,994
  • 18 x 14
    £5,699 £5,129
  • 24 x 12
    £5,999 £5,399
  • 20ft x 14ft pressure treated grandmaster fusion with partition wall
    20 x 14
    £6,299 £5,669
  • 22 x 14
    £6,899 £6,209
  • 24 x 14
    £7,499 £6,749

24 x 14

24 x 14
£7,499

4 Choose your window fixings

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

Details

X

  • Economy Fixings

    Our economy silver fixings are butt hinges that are suitable for our single styrene glazing option. The opening windows are top hung where they also come with silver casement stays as standard.

  • Premium Fixings

    Our premium brass hinges are more heavy-duty and can easily support the weight of our double glazed windows and doors. They are also supplied with brass casement stays. You can still choose to have our brass fixings with our styrene glazed windows and doors if you are looking for a more premium finish.

  • UPVC Fixings

    Our UPVC fixings are only available with our UPVC window and door options. Please select the UPVC Fixings to select our UPVC options in our three colour choices.

  • Premium Fixings
    £0
  • UPVC Fixings
    £120

5 Choose your window and door material

Please Note: Our Styrene Standard Modern Single Glazed windows and doors are for seasonal use. Should you want to use your garden building all year round, please upgrade to our Toughened Glass Premium Modern Double Glazed windows & doors.

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

Details watch

X

  • Standard modern single glazed windows and doors

    Our standard option, single glazed 1.2mm perspex

  • Premium Modern Double Glazed windows and doors

    Upgrade to this option for better insulation and a premium feel to your building.

  • UPVC Green

    Upgrade to UPVC Green for better security and a more premium look to your building.

  • UPVC Brown

    Upgrade to UPVC Brown for better security and a more premium look to your building.

  • UPVC White

    Upgrade to UPVC White for better security and a more premium look to your building.

  • UPVC Grey

    Upgrade to UPVC Grey for better security and a more premium look to your building.

  • Standard Modern Single Glazed Window
    £0
  • Premium Modern Double Glazed Window
    £238
  • UPVC Double Glazed Window - White
    £2,995
  • UPVC Double Glazed Window - Green
    £3,895
  • UPVC Double Glazed Window - Grey
    £3,895
  • UPVC Double Glazed Window - Brown
    £3,895

6 Choose your floor

Details watch

X

  • 11mm Floor

    Pressure treated 11mm tongue and groove Floor Boards. Standard option.

  • 19mm Floor

    Pressure Treated 19mm tongue and groove floor boards - select this option for medium use, if you intend on having furniture in the building and using occasionally.

  • 28mm Floor

    Pressure Treated 28mm tongue and groove floor boards. Select this option for Heavy use. This may include Gym/ heavy furniture use or heavy all year round use.

  • 11mm Floor
    £0
  • 19mm Floor
    £666
  • 28mm Floor
    £1,487

7 Choose your roof cover

Details watch

X

  • Mineral Felt

    Standard with all buildings.

  • Black Felt Tiles

    Select these to improve the aesthetic of your building. Available in black, Grey and Green.

  • Grey Felt Tiles

    Select these to improve the aesthetic of your building. Available in black, Grey and Green.

  • Green Felt Tiles

    Select these to improve the aesthetic of your building. Available in black, Grey and Green.

  • Rubber Roof

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

  • Mineral Felt
    £0
  • Black Felt Tiles
    £385
  • Green Felt Tiles
    £385
  • Grey Felt Tiles
    £385
  • Rubber Roof
    £1,324

8 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.

    Our guttering option on an Apex roof building gives you guttering for both sides, whereas on a pent building you will only require guttering for the back of your building due to the mono-pitched roof.

  • None
    £0
  • Guttering
    £323

9 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
    £326
  • Doulting Stone
    £326
  • Foxwhelp Red
    £326
  • Goblin Blue
    £326
  • Moorland Green
    £326
  • Sedge Green
    £326
  • Anthracite Grey
    £326

10 Choose your colour trim

Details watch

X

  • Swan White

    Swan White Trim Paint

  • Chantry Cream

    Chantry Cream Trim Paint

  • None
    £0
  • Swan White
    £63
  • Chantry Cream
    £63

11 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.

  • None
    £0
  • Laminated Floor - Trend Oak Grey
    £1,716
  • Laminated Floor - Summer Oak Brown
    £1,716

12 Choose your base

X

  • No Base

    Your building comes without a base as standard, where you will need to construct one from your own materials.

  • Project Timber Base

    The timber base we supply is made from pressure treated timber. It is made to measure to perfectly fit your building size.

    Some assembly is required and solid ground in the build area. Please ensure there is at least 1m clearance from any boundary on all sides.

  • None
    £0
  • Base
    £1,815

13 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.

  • None
    £0
  • Building Assembly Service
    £3,020

£7,499

  • Wall Thickness, Window Fixings, Window and Door material, Floor, Roof Cover, Guttering, Paint Colour, Colour Trim → Please choose an option.

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*.

High Quality Materials

Thicker & doubled up timber framing with shiplap construction.

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.

fusion infographic

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.

Free Delivery

Free Delivery

On selected postcodes

30 Days Returns

30 Days Returns

no-hassle returns

Made in our facility in Nottinghamshire

Made in our facility in Nottinghamshire

in the cusp of Sherwood Forest

Pressure Treated Grandmaster Fusion with Side Shed

High quality materials

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

15 Year anti-rot guarantee*

Our building panels and tongue and groove roof and floors are pressure treated as standard to protect your building from rot and decay.

Longer lasting

Made from interlocking shiplap tongue and groove boards. Upgrade to our 16mm cladding thickness for the ultimate building.

Thicker and doubled up framing

A stronger construction with extra timber where the panels join.

Extra tall building

High eaves and ridge height for a fully useable internal space.

Summerhouse with side storage

The Fusion comes with a partition wall and a single boarded timber door as standard so you can have a place to store your garden items.

Wide double summerhouse doors

Our extra tall and wide double summerhouse doors give you excellent access to your building and let in extra light.

Window and door options are available

Styrene glazed timber windows and doors are included as standard. Upgrade to toughened glass double glazed windows and doors.

UPVC Windows and Door Option

Upgrade to upvc windows and doors for extra security and increased u-values.

Floor options available

Upgrade to our thicker 19mm or 28mm tongue and groove floor thicknesses for those heavier items.

Mineral felt included as standard

Our black mineral felt is supplied as standard. Upgrade to our EPDM rubber roof that offers superior and longer lasting weather protection.

Tongue and groove roof as standard

The Grandmaster Fusion comes with a tongue and groove roof as standard for added strength and protection from the elements.

Easy to handle pre-assembled panels

Made in sections that fit through your door so you can easily get your building to your garden.

All fixings and instructions included

An assembly made easy with easy to follow stages by stage instructions.

Select options
SCROLL UP TO SEE YOUR BUILDING
  • Size
    Please Select..
  • Wall Thickness
    Please Select..
  • Window Fixings
    Please Select..
  • Window and Door material
    Please Select..
  • Floor
    Please Select..
  • Roof Cover
    Please Select..
  • Guttering
    Please Select..
  • Paint Colour
    Please Select..
  • Colour Trim
    Please Select..
  • Laminate Floor
    Please Select..
  • Base
    Please Select..
  • Building Assembly Service
    Please Select..
        


            

                   
                
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