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10 Year Guarantee
Every Powersheds Summerhouse is made to stand the test of time. Any Powersheds Summerhouse purchased on the mygardenbuildings.co.uk comes with a free 10 year guarantee provided by Powersheds, against timber rot, decay or insect infestation.
Scandinavian Timber
Powersheds source only the finest high grade timber available, making it suitable for a garden summerhouse. The timber is specially and responsibly imported from forests in Scandinavia in line with our sustainability policy. Powersheds select slow-grown timber which means the timber is stronger and resistant to warping.
Adaptable Configuration
You can choose where you want the door and windows of the summerhouse side of this product while assembling, allowing it to fit your garden and be the last summerhouse you'll ever have to buy.
Tongue & Groove Throughout
All Powersheds Summerhouses are made from 12mm thick shiplap tongue and groove timber. Even the floor and roof are 12mm tongue and groove to give extra strength and durability. Shiplap cladding has the additional feature of a small profile at the top of each board. This little channel, allows water to run off the shed quicker than normal tongue and groove. This also helps the shed dry quickly after exposure to rain, helping to protect it from any water damage.
Heavy Duty Framing
The framing is 44x28mm and rounded at each corner to give a stunning finish. The panels are screwed together and so when joined it creates double strength 44x56mm thick framing.
Additional Height
The summerhouse really is something competitors look up to with it being that extra bit taller to give you ample headroom inside.
Collapsible content

Toughened Glass
Powersheds Summerhouses come with toughened safety glass as standard. The toughening process improves the structural durability and thermal strength of the glass, in turn increasing its resilience and ability to withstand heat. Toughened glass is 500% more resistant to heat and shock than ordinary glass. The glass is already internally beaded so you don't have to fit the glass yourself and PVC sills complete the window units to prevent water ingress and provide a stunning finish.
Galvanised Ironmongery
A Powersheds Summerhouse comes with galvanised hinges, turn buttons and door pull this ensures the structure lasts longer and minimises oxidisation. Galvanising is coating with a protective layer of zinc, in order to protect it from rust and other damage.
Corner Bracing
Internal corner bracing has been added to every wall panel on your summerhouse to maximise strength and rigidity.
Premium 'Super' Felt
The summerhouse is complete with a high performing waterproof felt with special 'polyester' backing ensuring it lasts longer and doesn't ripple or tear easily. The felt is saturated with a protective coating called bitumen (asphalt), which repels water but still allows the product to breathe.
Advanced Preserver
Powersheds' special formula wood preserver has a wax additive allowing you to go a WHOLE YEAR without the need to re-treat your apex shed. However, it is water based and has just the right amount of wax so that if you want to paint the shed a different colour, you can. Summerhouse panels are dip treated into a tank of preservative fully submerging the panel into the treatment. All surfaces are thoroughly immersed before being removed and dried.
Roof Truss Support
Apex summerhouses come with a roof truss every 4ft. A truss is a structural framework of timber designed to provide support for a roof, stopping it from sagging after years of use.

Internal Partition
The Powersheds Summerhouse Combi with Side Shed comes with an internal partition to separate the summerhouse section from the side storage room. This divider wall ensures the clutter of your possessions in the side store are out of sight and securely stored for when you're spending precious time in the summerhouse.

A Base For Your Summerhouse
All summerhouses must be assembled on a firm and level base to give it a solid foundation and maximise the longevity of the building. Without a firm and level base, you may find that the summerhouse can drop out of square causing issues with the doors not closing properly or the roof twisting potentially leading to water ingress. If you do not install the summerhouse on a firm and level base, you will invalidate the 10-year guarantee.
You should install your summerhouse on any of the following bases:
- Powersheds Base Kit
- Concrete Base
- Paving Slab Base
The image here is depicting the Power Shed Base Kit. The base kit can be bought on this page along with your summerhouse.
Summerhouse Combi Specifications
Dimensions
Please scroll across the table to view all the columns and scroll down the table to view all the rows on the 1st table. There is also a 2nd table below the 1st table.
Power Pent Combi (Including 4ft Side Store)
External Length |
External Width |
External Length With Overhang |
External Width With Overhang |
Base Length |
Base Width |
Internal Length (Main Building) |
Internal Width (Main Building) |
Internal Length (Side Store) |
Internal Width (Side Store) |
Internal Eaves Height |
External Eaves Height |
Internal Ridge Height |
External Ridge Height |
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
8x4 | 2548mm | 1214mm | 2572mm | 1308mm | 2524mm | 1190mm | 1190mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
8x6 | 2548mm | 1814mm | 2572mm | 1908mm | 2524mm | 1790mm | 1190mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
8x8 | 2548mm | 2404mm | 2572mm | 2604mm | 2524mm | 2380mm | 1190mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
10x4 | 3148mm | 1214mm | 3172mm | 1308mm | 3124mm | 1190mm | 1790mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
10x6 | 3148mm | 1814mm | 3172mm | 1908mm | 3124mm | 1790mm | 1790mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
10x8 | 3148mm | 2404mm | 3172mm | 2604mm | 3124mm | 2380mm | 1790mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x4 | 3738mm | 1214mm | 3762mm | 1308mm | 3714mm | 1190mm | 2380mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x6 | 3738mm | 1814mm | 3762mm | 1908mm | 3714mm | 1790mm | 2380mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x8 | 3738mm | 2404mm | 3762mm | 2604mm | 3714mm | 2380mm | 2380mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x4 | 4338mm | 1214mm | 4362mm | 1308mm | 4314mm | 1190mm | 2980mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x6 | 4338mm | 1814mm | 4362mm | 1908mm | 4314mm | 1790mm | 2980mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x8 | 4338mm | 2404mm | 4362mm | 2604mm | 4314mm | 2380mm | 2980mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x4 | 4928mm | 1214mm | 4952mm | 1308mm | 4904mm | 1190mm | 3570mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x6 | 4928mm | 1814mm | 4952mm | 1908mm | 4904mm | 1790mm | 3570mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x8 | 4928mm | 2404mm | 4952mm | 2604mm | 4904mm | 2380mm | 3570mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x4 | 5528mm | 1214mm | 5552mm | 1308mm | 5504mm | 1190mm | 4170mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x6 | 5528mm | 1814mm | 5552mm | 1908mm | 5504mm | 1790mm | 4170mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x8 | 5528mm | 2404mm | 5552mm | 2604mm | 5504mm | 2380mm | 4170mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x4 | 6118mm | 1214mm | 6152mm | 1308mm | 6094mm | 1190mm | 4760mm | 1102mm | 1190mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x6 | 6118mm | 1814mm | 6152mm | 1908mm | 6094mm | 1790mm | 4760mm | 1702mm | 1190mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x8 | 6118mm | 2404mm | 6142mm | 2604mm | 6094mm | 2380mm | 4760mm | 2292mm | 1190mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
Power Pent Combi (Including 6ft Side Store)
External Length |
External Width |
External Length With Overhang |
External Width With Overhang |
Base Length |
Base Width |
Internal Length (Main Building) |
Internal Width (Main Building) |
Internal Length (Side Store) |
Internal Width (Side Store) |
Internal Eaves Height |
External Eaves Height |
Internal Ridge Height |
External Ridge Height |
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
10x4 | 3148mm | 1214mm | 3172mm | 1308mm | 3124mm | 1190mm | 1190mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
10x6 | 3148mm | 1814mm | 3172mm | 1908mm | 3124mm | 1790mm | 1190mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
10x8 | 3148mm | 2404mm | 3172mm | 2604mm | 3124mm | 2380mm | 1190mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x4 | 3738mm | 1214mm | 3772mm | 1308mm | 3714mm | 1190mm | 1790mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x6 | 3738mm | 1814mm | 3772mm | 1908mm | 3714mm | 1790mm | 1790mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
12x8 | 3738mm | 2404mm | 3762mm | 2604mm | 3714mm | 2380mm | 1790mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x4 | 4338mm | 1214mm | 4362mm | 1308mm | 4314mm | 1190mm | 2380mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x6 | 4338mm | 1814mm | 4362mm | 1908mm | 4314mm | 1790mm | 2380mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
14x8 | 4338mm | 2404mm | 4362mm | 2604mm | 4314mm | 2380mm | 2380mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x4 | 4928mm | 1214mm | 4962mm | 1308mm | 4904mm | 1190mm | 2980mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x6 | 4928mm | 1814mm | 4962mm | 1908mm | 4904mm | 1790mm | 2980mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
16x8 | 4928mm | 2404mm | 4952mm | 2604mm | 4904mm | 2380mm | 2980mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x4 | 5528mm | 1214mm | 5552mm | 1308mm | 5504mm | 1190mm | 3570mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x6 | 5528mm | 1814mm | 5552mm | 1908mm | 5504mm | 1790mm | 3570mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
18x8 | 5528mm | 2404mm | 5552mm | 2604mm | 5504mm | 2380mm | 3570mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x4 | 6118mm | 1214mm | 6152mm | 1308mm | 6094mm | 1190mm | 4170mm | 1102mm | 1790mm | 1102mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x6 | 6118mm | 1814mm | 6152mm | 1908mm | 6094mm | 1790mm | 4170mm | 1702mm | 1790mm | 1702mm | 1801mm | 1913mm | 1906mm | 2028mm |
20x8 | 6118mm | 2404mm | 6142mm | 2604mm | 6094mm | 2380mm | 4170mm | 2292mm | 1790mm | 2292mm | 1801mm | 1913mm | 1906mm | 2028mm |
Technical Details
- Timber: High grade, slow grown Scandinavian softwood
- Timber Size: 12mm
- Framing: Superior rounded four corner framing
- Framing Thickness: 44x28mm doubled up to create 44x56mm
- Roof & Floor: High grade, tongue and groove Scandinavian softwood
- Roof & Floor Thickness: 12mm
- Door: Well braced tongue and groove door with press lock and key
- Door Size: Shed door is a single - 750x1630mm. Summerhouse door is a double - 1034x1630mm
- Window: Toughened safety glass with PVC sills
- Window Size: 1620x457mm
From Delivering...to Assembling
FAQs
What should the summerhouse go on?
All summerhouses must be assembled on a firm and level base to ensure a solid foundation and longevity. Without it, the shed may become misaligned, causing issues with doors and the roof. You can either buy a Power Base Kit with this product, or get a level concrete or paving slab base installed by a local tradesperson.
Has the timber been treated?
In general, it is advisable to apply paint to a summerhouse shortly after receiving it. Nevertheless, thanks to Power's cutting-edge treatment, there's no immediate necessity to paint it for a whole year- as the summerhouse has been treated. However, if you prefer, you can commence painting over it right away!
How thick is the wood?
The timber used is 12mm thick. However, the framing is 44x28mm and doubled up to create 44x56mm.
Can I choose where to place the door and window(s)?
Summerhouses by Powersheds are the most adaptable summerhouses, allowing you to position doors and windows anywhere during assembly without pre-selection. Each summerhouse includes easy-to-follow instructions and all necessary fixings for simple building.
How much clearance should I leave around my summerhouse?
When planning your garden summerhouse, it's crucial to leave enough clearance for practical and legal reasons. In the UK, it's recommended to leave at least 50cm from boundaries like fences or walls for easier access and maintenance.
Customisations
Do you need more doors & windows? This can be done by replacing a blank panel with a door or window panel. Do you need less windows, this can be done by replacing a window panel with a blank panel. You could also request EPDM roofing instead of the premium felt used as standard.
Please contact us by completing the form below stating the customationsations you require, the summerhouse type (standard or combi) and summerhouse size.
Do You Have a Question About This Product?
Have a question about this product? Send it to us via the form below and we will get back to you as soon as possible with an answer.