Short Window | Pent Extra Heavy Duty and Tall Workshop 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

Grandmaster “Heavy Duty” Pent Shed – Pressure Treated

Free Anti-Rot Treatment - Guaranteed for 15 years*
  • Extra STRONG
  • EXTRA TALL
  • UK Manufactured By Us
  • Multiple Design Options
  • Fully Pressure Treated*
  • Free UK Delivery*
  • Shatter Resistant Styrene Glazing

For 10% discount use code SPRING10

1 Choose your treatment

  • Standard Dip Treatment
  • FREE PRESSURE TREATMENT
    WORTH £0
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 10ft grandmaster workshop short window
    12 x 10 (12 x 8 Building Size)
    £1,899 £1,709
  • 14 x 10 (14 x 8 Building Size)
    £2,149 £1,934
  • 16ft x 10ft grandmaster workshop short window
    16 x 10 (16 x 8 Building Size)
    £2,499 £2,249
  • 18ft x 10ft grandmaster workshop short window
    18 x 10 (18 x 8 Building Size)
    £2,749 £2,474
  • 20ft x 10ft grandmaster workshop short window
    20 x 10 (20 x 8 Building Size)
    £2,999 £2,699

4 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
  • 11mm Floor
    £0
  • 11mm Floor
    £0
  • 11mm Floor
    £0
  • 11mm Floor
    £0
  • 19mm Floor
    £207
  • 19mm Floor
    £241
  • 19mm Floor
    £276
  • 19mm Floor
    £310
  • 19mm Floor
    £344
  • 28mm Floor
    £409
  • 28mm Floor
    £477
  • 28mm Floor
    £545
  • 28mm Floor
    £613
  • 28mm Floor
    £681

5 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
  • none
    £0
  • none
    £0
  • None
    £0
  • None
    £0
  • Guttering
    £116
  • Guttering
    £133
  • Guttering
    £137
  • Guttering
    £144
  • Guttering
    £154

6 Choose your roof cover

Details watch

X

  • Mineral Felt

    Standard with all buildings.

  • Rubber Roof

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

  • Mineral Felt
    £0
  • Mineral Felt
    £0
  • Mineral Felt
    £0
  • Mineral Felt
    £0
  • Mineral Felt
    £0
  • Rubber Roof
    £1,161
  • Rubber Roof
    £1,369
  • Rubber Roof
    £1,485
  • Rubber Roof
    £1,677
  • Rubber Roof
    £1,860

7 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
  • None
    £0
  • None
    £0
  • None
    £0
  • None
    £0
  • Doormouse Grey
    £163
  • Doulting Stone
    £163
  • Foxwhelp Red
    £163
  • Goblin Blue
    £163
  • Moorland Green
    £163
  • Sedge Green
    £163
  • Doormouse Grey
    £246
  • Doulting Stone
    £246
  • Foxwhelp Red
    £246
  • Goblin Blue
    £246
  • Moorland Green
    £246
  • Sedge Green
    £246
  • Doormouse Grey
    £246
  • Doulting Stone
    £246
  • Foxwhelp Red
    £246
  • Goblin Blue
    £246
  • Moorland Green
    £246
  • Sedge Green
    £246
  • Doormouse Grey
    £246
  • Doulting Stone
    £246
  • Foxwhelp Red
    £246
  • Goblin Blue
    £246
  • Moorland Green
    £246
  • Sedge Green
    £246
  • Doormouse Grey
    £246
  • Doulting Stone
    £246
  • Foxwhelp Red
    £246
  • Goblin Blue
    £246
  • Moorland Green
    £246
  • Sedge Green
    £246

8 Choose your colour trim

Details watch

X

  • Swan White

    Swan White Trim Paint

  • Chantry Cream

    Chantry Cream Trim Paint

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

9 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
    £648
  • Laminated Floor - Summer Oak Brown
    £648
  • Laminated Floor - Trend Oak Grey
    £743
  • Laminated Floor - Summer Oak Brown
    £743
  • Laminated Floor - Trend Oak Grey
    £838
  • Laminated Floor - Summer Oak Brown
    £838
  • Laminated Floor - Trend Oak Grey
    £933
  • Laminated Floor - Summer Oak Brown
    £933
  • Laminated Floor - Trend Oak Grey
    £1,052
  • Laminated Floor - Summer Oak Brown
    £1,052

10 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
    £618
  • Base
    £753
  • Base
    £821
  • Base
    £959
  • Base
    £1,018

£0

  • Size, Wall Thickness, Floor, Guttering, Roof Cover, 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*.

Grandmaster Pent Extra Heavy Duty and Tall Workshop Shed Features

High quality materials

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

15 year anti-rot guarantee*

Our buildings are pressure treated as standard, giving your building extra protection from rot and decay.

Longer lasting

Our shiplap tongue and groove cladding is specially designed to give your building extra weather protection

Thicker and doubled-up framing

Made with extra thick 44mm framing to give your building increased strength and rigidity.

Extra tall interior

Our grandmaster range gives you a generous 2m internal eaves height so that you have more useable space.

Small opening windows for added privacy

Small opening windows give you added privacy and also extra ventilation.

Fully braced doors

Our tall and wide double doors allow for better access and better security with our thicker timber bracing.

Pent style contemporary roof

A flat contemporary roof gives your building a modern look.

Heavy duty tongue and groove roof construction

Our pent roof is made from heavy duty purlins and tongue and groove cladding for a stronger and longer lasting roof.

Tongue and groove flooring thicknesses available

Upgrade to a thicker floor for everyday use and to store those heavier items.

multiple sizes available

For heavy-duty storage or a heavy-duty workshop, you can choose the size that's best for you.

Pre-assembled Panels that fit through your door

Our buildings come flat packed using pre-assembled panels, which are easier to lift and also fit through your door.

Mineral felt included as standard. Upgrade to rubber roof

For the ultimate weather protection choose our heavy-duty rubber roof for protection that lasts up to 50 years.

All fixings and instructions included

Our simple stage by stage instructions makes assembly easy with all fixings provided.

Select options
SCROLL UP TO SEE YOUR BUILDING
  • Size
    Please Select..
  • Wall Thickness
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  • Floor
    Please Select..
  • Guttering
    Please Select..
  • Roof Cover
    Please Select..
  • Paint Colour
    Please Select..
  • Colour Trim
    Please Select..
  • Laminate Floor
    Please Select..
  • Base
    Please Select..
        


            

                   
                
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