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BillyOh Penton Corner Summerhouse with Side Store

The BillyOh Penton corner summerhouse with side store combines two garden buildings into one fantastic product; a stylish Summerhouse and a Garden Storage unit. With the Penton, you have a summerhouse in which you can relax and enjoy some quality time with your loved ones and a storage unit that is ideal for storing away all of your garden essentials.

Size measured in feet

2. Select Treatment

2. Customise

Just Bearers - Pre-cut pressure treated timbers that are designed to lock out ground moisture and still allow the air to circulate underneath your shed.

Eze Base - Solid stable pressure treated base to your shed and can even fill it in with concrete. This base ensures your garden building has a rigid, level base.

EcoBase Fastfit Full Base - A foundation grid system used as a base for garden buildings. Quick and easy to assemble

Eco Base

An alternative to using a concrete base or slabs. A grid system made from recycled plastic which can be filled with gravel to create a sturdy base for your building.

Shelving is a great way of increasing the usable space in your building by giving you another storage level. Whether your building is for tools, gardening equipment or your own personal workshop shelving will help you keep a tidy, organised space. Depending on which option you choose, your shelving will cover one side, two sides or all around. Each shelf is 21cm deep and can be placed at any height.

3. Add optional extras

Discover our range of BillyOh accessories that allow you to customise your very own garden building to very last detail.

Do you need high quality padlocks, paint, silicone and assembly kits?

This multipurpose wood stain is designed to provide protection to and weatherproof all types of timber, ideal for a garden building. With a number of different colour options available you can choose the perfect colour to compliment your garden. The wood stain is high quality and can be used on all types of timber products, such as furniture and buildings.
Cost-effective and waterproof wood stain that enhances the natural beauty of the wood. It is used and recommended by professionals as, unlike a lot of competitor brands, it can be applied to old surfaces, planned (finished) and rough sawn timber.
Please note the colours are not pre-painted on the product before delivery, and are supplied in a tub of paint.
Optional Extras:
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  • 2-in-1 summerhouse with handy side storage unit
  • 11mm Tongue & Groove Walls
  • 11mm Tongue and Groove Floor and Roof
  • Optional pressure treatment for longevity
  • Full length windowed front to let natural light flow in
  • Complete with felt, fixtures and fittings
  • Base Coat Treated for Transit
Overall Dimensions (Includes Roof Overhang)
  • (A) Width: 2.15m (7ft1)
  • (B) Depth: 3.36m (11ft)
  • (C) Height: 2.09m (6ft10)

Why Buy the Penton Summerhouse?

10 Year <br/>Anti-Rot Guarantee
10 Year
Anti-Rot Guarantee

Protects the wood on your building against rot and decay.

UK <br/>Manufactured

Over 20 years of experience in design and production.

Convenient <br/> Corner Building
Corner Building

Designed to sit perfectly in the corner of your garden.

Easy to <br/>Assemble
Easy to

Interlocking boards, assembly instruction and fixings included ensures a stress-free installation.

Key Features

Strong Construction

The panels are 11mm thick and interlock together, giving the outdoor garden unit it’s incredible strength. With its strong T&G construction, the Penton Summerhouse has a reliable structure which can withstand the harsh weather and be a feature of your garden for years to come.

Full Span Windows

The long doors and windows of the Penton provide you with fantastic views of your garden, allowing the sunlight to enter and provide natural lighting and a spacious feel to the whole room.

Wide Double Doors

The wide double doors provide ease of access in and out of the summerhouse and on a summer's day can be left open to allow the warm summer breeze inside.

BillyOh Penton Corner Summerhouse with Side Store
Dual Room Building

If you want to have a summerhouse and a storage shed but garden space does not allow then this great 2-in-1 building could be the solution to your problem and provide you with both in one unit.

High Strength SAN Styrene Glazing

Durable Single SAN glazing included as standard. SAN is used for its UV properties and the tougher finish avoids breakages.

Pent Roof

The pent roof of this garden room makes it a stylish addition to any garden while offering excellent head height and versatile use options without taking up too much valuable garden space.

Frequently Asked Questions


  • 11mm Tongue & Groove walls

  • Single glazing

  • Pre-constructed 11mm Tongue & Groove Roof

  • Pre-constructed 11mm Tongue & Groove Floor

  • Tall single glazed double doors

  • 11mm Tongue & Groove Boarded door

  • Green mineral roof felt

  • All fixtures and fittings

  • Comprehensive assembly instructions

Spray Treated: Our sheds and summerhouses get a beautiful golden brown spray treatment before leaving the factory in order to preserve the quality of the wood up until the delivery. As this only lasts through the transit stage, we do advise treating the wood after installation to protect and preserve it, as well as annual maintenance.

Pressure Treated: For an extra level of protection, you can opt for a pressure treated building which is an effective way of keeping the wood long lasting. This is an extra step in the manufacturing process where the wood is treated in a pressurised tank. Chemical preservatives are forced deep into the wood’s fibres to resist rot, decay and termites. When you upgrade to Pressure Treatment, the guarantee is extended from 10 to 15 years.

All garden buildings should be assembled on a firm and level base. A base will ensure your building has a solid, long-lasting and well-drained foundation.

If you want to build your own base, from a sturdy material such as concrete or flagstones, you can find minimum dimensions for each size of this building in the tech specs. In order to protect your building from moisture, you should leave a 2ft gap around the exterior of your building, so remember to take this into consideration when laying any sort of base.

Our robust and simple to use EcoBase provides you with a firm, long-lasting foundation with suitable drainage for your garden building. It is quick and easy to install through the use of snap connectors that link the grids to each other.

If your building is shorter than 2.5m you should not require planning permission, (unless it’s more than 50% of your garden or will be placed in your front garden). Planning permission rules can vary by area so we would strongly recommend checking your local council rules before purchasing a garden building from us.

We do not offer an installation service on any of our buildings, as they are designed to be easy and simple to assemble. Using the digital assembly instructions included in your order confirmation and with a team of at least 2 people, the handy pre assembled panels mean you will have your BillyOh building up in no time!

Our sheds and summerhouse are delivered in easy to assemble panels. For your convenience the panels are no wider than 4ft so they can be easily maneuverable and fit through a standard doorway. Glazing and any additional wood is delivered in separate, clearly labeled packages.

Your order can be tracked through the account section on our website or by contacting us directly. You will be contacted after your order via your online account, email or text to provide updates on delivery dates.

More About The BillyOh Penton Summerhouse with Side Store...

The Penton corner summer house is a versatile building, offering you a bright, relaxing space with a separate area for storage. The main 11x7 area is perfect for use as a garden office, studio or summerhouse bar. The storage area sits on the back of the building and is a fantastic garden storage solution with space for shed shelves or even a small workbench creating a home workshop.

Corner Summer House Sheds

Another excellent option for the side store is to use it for bike storage or BBQ storage, giving you a secure yet accessible space for all of your possessions. A strong boarded double door is also included on the storage area to protect your items further. The Penton summer house with shed attached is a versatile multi-function building.

The garden room’s front walls are covered in tall glazed windows and glazed double doors. Natural light floods into your summerhouse while giving you great views of the rest of your garden space and creating a beautiful hub for your garden.

Tongue and Groove Roof

The Penton comes with an 11mm tongue and groove floor and roof, creating a solid construction for your building. Roofing felt is also included to cover both areas of the building, helping to protect from harsh weather conditions. If you wish to protect your building further, we offer a pressure treatment service, increasing your BillyOh guarantee to 15 years, as well as your buildings strength and weatherproofing.

Contemporary Summerhouse

If you’re looking for a large garden room, this corner summerhouse could be the one for you. This building improves your home’s storage capacity keeping your house and garden tidy and organised while also giving you valuable relaxing space in the comfort of your garden. Many of our customers use their buildings as summerhouse bars or outhouses and even customise them with summerhouse accessories or paint their buildings to suit their style.

Our BillyOh summerhouses lend themselves to a number of purposes, from everyday use office to brilliant storage space. With wide-opening double doors and a corner design, combi buildings like the Penton are built with corners in mind.

Our premium buildings feature tongue and groove construction which offers a tight seal against water ingress. Tongue and groove panels are highly weather resistant as this cladding style uses interlocking construction. The Penton pent tongue & groove summer house also features a stylish and contemporary pent roof which comes with green mineral roof felt as standard.


If you want convenient storage spaces at a budget-friendly price with dependable quality, then look no further. Using high-quality timber, the Penton is a cosy space that's protected against British weather and comes with our BillyOh 10-year guarantee against insect infestation, rot, and decay. Our pressure-treated models come with a 15-year guarantee.

Assembly Kits and Installation Service

Here at Garden Buildings Direct, we don't offer an installation service as the  assembly process is designed to be easy and straightforward. Simply follow the comprehensive assembly instructions provided with your order to erect your Pent summerhouse onto a level base.

Garden Buildings Direct - Delivery

Our BillyOh garden buildings, including the Penton, can be with you in as little as 1 - 4 weeks - that's a delivery time we think we can all get on board with!

And, with fast and free delivery to most of mainland UK, either order today or get in touch with our awesome customer service team.

Dimensions 11 x 7 11 x 7 Pressure Treated
Width 215.2cm 215.2cm
Depth 336.3cm 336.3cm
Width (Internal) 208.4cm 208.4cm
Depth (Internal) 332.3cm 332.3cm
Ridge Height (Inc Floor) 209cm 209cm
Eaves Height (Inc Floor) 176.1cm 176.1cm
Ridge Height (Internal) 199.7cm 199.7cm
Eaves Height (Internal) 175.4cm 175.4cm
Door Opening Size (w x h) 117.2cm x 172.6cm 117.2cm x 172.6cm
Door Width 58.3cm 58.3cm
Door Height 172cm 172cm
Minimum Base Width 215cm 215cm
Minimum Base Length 336cm 336cm
Window Dimensions 126.1cm x 363.5cm 126.1cm x 363.5cm
Glazing Thickness 0.18cm 0.18cm
Materials 11 x 7 11 x 7 Pressure Treated
Glazing Material Styrene Styrene
Floor Material Tongue & Groove Tongue & Groove
Roof Material Tongue & Groove Tongue & Groove
Features 11 x 7 11 x 7 Pressure Treated
Door Style Double Doors Double Doors
Windows 4 windows (all fixed) 4 windows (all fixed)
Factory Basecoat Treatment Red Cedar Water Based Treatment for Transit Pressure Treated
Material Wood Wood
Roof Style Corner Pent Corner Pent
Cladding Style Tongue and Groove Tongue and Groove
Please Note: This product has been designed as an affordable solution to most popular light domestic uses. All products supplied self assembly flat packed unless otherwise stated.

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