BillyOh Devon Log Cabin
BillyOh Devon Log Cabin
The BillyOh Devon Log Cabin features an asymmetrical design with offset doors and increased height. The glazed double doors and wide-opening make for a bright and airy garden room.
1. Select Size
2. Select Treatment
- Protection against rot, decay & fungal attack
- Resistant to insect and pest damage
- Extended lifespan – guaranteed for 15 years
- Low maintenance – no annual preservative treatments needed
- Environmentally friendly water-based treatment
2. Select Log Thickness
Design insights
- Reverse Apex Roof Provides Plenty of Headroom
- 44mm thick log walls for superior insulation, a stronger build, and year-round comfort
- Upgrade to UPVC doors and windows for added insulation, security and aesthetics
- A-symmetrical Window Design
- Offset Doors With A Secure Locking System
- 11mm Tongue And Groove Floor & Roof As Standard
- High Strength SAN Styrene Glazed Opening Window
- High-Quality Roofing Felt
- 10 Year Anti-rot Guarantee
£3,082.00
| Total Cash Price | £3,082.00 |
| Total Amount of Credit | £2,773.80 |
| Deposit | £308.20 |
| Interest Rate | 14.9% p.a.fixed |
| Total Amount Payable | £3,503.47 |
| Total Charge fo Credit | £421.47 |
| APR representative | 14.9% |
| Monthly Repayment( 24 months ) | £133.14 |
Overall Dimensions (Includes Roof Overhang)
- (A) Width: 3.63m (11ft11)
- (B) Depth: 2.38m (7ft10)
- (C) Ridge: 2.42m (7ft11)
- (D) Eaves: 2.04m (6ft8)

10 Year
Anti-Rot Guarantee
UK
Manufactured
Complete
Building
Easy
To Assemble
Devon Customer Testimonials
Key Features
Strong Construction
Opening Window
Generous Headroom
Offset Double Doors
Green Mineral Felt
Secure Garden Room
44mm Log Cabin For Premium Comfort
The BillyOh Devon Log Cabin is a DIY log cabin kit crafted from 44mm interlocking logs, giving you a naturally insulated and robust structure. On its own, it’s a sturdy and reliable wooden garden room, ideal for year-round use. For even more warmth, you can add optional upgrades to the floor, roof, and double-glazed windows — creating a truly insulated garden room for both work and leisure.
Your Perfect Garden Office Log Cabin
One of the most popular uses for the Devon is as a stylish outdoor office. Large front glazing floods the space with natural light, while the versatile interior provides plenty of room for a dedicated study, home studio, or hobby space. Or, turn it into a family garden room — a cosy retreat where everyone can relax. With its solid build and adaptable design, the BillyOh Devon is the ideal log cabin for work, play, or quiet downtime.What Accessories Do I Need?
Paints and Treatments
Give your building the look it deserves - or simply give it an extra layer of treatment to keep it in great shape. We have a wide range of paint colours and timber treatments available. Simply explore our collection.
Wooden Shelving Unit
Make use of the vertical space afforded by your building with these handy shelving units. Available in two sizes, you can buy as many shelves as you need, with the units themselves specially designed to fit with BillyOh buildings. Use them as a place to keep tools, boxes, toys and more.
Gutter System
Ensure your shed is getting great drainage with our flexible guttering addition. Simple to assemble and with a universal fit to any shed or building with its screw-on design. Comes with a downpipe to effectively channel rainwater.
BillyOh Ecobase Foundation
Give your building the foundation it deserves with the Ecobase. A versatile plastic base, the Ecobase is available in a wide combination of sizes with its connectors to tailor to the building you’ve bought. Made from recycled plastic, you can fill with gravel to allow for natural drainage.
Deluxe Padlock and Hasp
Stay secure with the deluxe padlock and hasp combination. Screws, hasp, shackle, and padlock with key all included. Easy to install and ensures your building is kept safe from intruders. Padlock protector is also available.
Frequently Asked Questions
Our 44mm log boards are a thick-profile wall material, with a double tongue and groove built in, giving you a sturdier build. The walls are 57% thicker than a 28mm cabin and have a solid, rigid construction, so you can look forward to enjoying your log cabin all year round, no matter the weather.
Roof:
We offer two roof thickness options, so depending on how you’re going to use your log cabin, you can choose the better option for you.
The first option is our standard 11mm thick board that interlock together, providing you with a solid roof for basic use. If you’d prefer something more robust for more heavy-duty use, such as a home gym, the upgrade option is a 15mm roofing that provides extra strength and durability to your log cabin.
Floor
We offer two flooring thickness options, so depending on how you’re going to use your log cabin, you can choose the better option for you.
The first option is our standard 11mm thick board that interlock together, providing you with a solid base for basic use. If you’d prefer something more robust for more heavy-duty use, such as a home gym, the upgrade option is a 15mm flooring that provides extra strength and durability to your log cabin. This upgrade option is perfect for housing heavy equipment and withstands the knocks and spills of everyday life. We supply timber bearers with both flooring options.
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.
Single Glazing is used as standard. Our single glazing is crafted from shatter-resistant plastic (SAN) and suitable for seasonal use. SAN is used for its UV properties and the tougher finish avoids breakages when compared to glass. Single glazing is the perfect choice for seasonal buildings such as summerhouses, log cabins and sheds providing plenty of natural light into the building.
You can upgrade to Double Glazing. Crafted from toughened glass, double glazing is the ideal option for a building that is used all year round. The extra thickness will provide better insulation and keep your building warmer in those colder months of the year.
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 a team of at least 2 people, the interlocking logs that simply slot together mean you will have your BillyOh building up in no time!
Our Log Cabins arrive as individual boards that are designed to be easily slotted together. This makes assembly easy and gives a strong building with interlocking corners for strength. If you opt for double glazed windows and doors, these are delivered pre-assembled for your convenience.
The Devon is versatile and you can transform it into whatever you like! The cabin is ideal for use as a home gym or games room where you can entertain your friends, or you could choose to turn it into a living space where you and your loved ones can relax in the comfort of your garden. The Devon is also ideal to turn into a home office, perfect for those who work from home or run a business from home.
The offset design of the doors offers maximum floor space away from the doors, allowing room for larger furniture items such as desks, gym equipment and soafs - whatever you like!
We offer two roof and roof thickness options, so depending on how you’re going to use your log cabin, you can choose the better option for you.
The timber of our log cabins naturally provides a good level of insulation, as long as it is well maintained. With 44mm thickness, double glazing options, and upgrades to the floor and roof, they can offer a comfortable garden room for most of the year. However, a greater level of insulation can still be achieved through our structurally insulated panel buildings.
This log cabin needs to be maintained with the following measures:
- Regular inspection for gaps that can form with the natural movement of timber, and sealing when they occur.
- Annual treatment of the timber with paint or stain
- Check for any wear and tear to the roof and floor.
Standard (untreated): the log boards are supplied untreated. Check all parts against your delivery note, assemble the building, and then apply a preservative wood stain or paint. Don't treat or paint components before or during assembly — painted or stained parts are classed as accepted as seen, so they can't be returned or exchanged if a part turns out to be incorrect. From then on, re-treat annually to protect the timber against rot, wood decay and insect infestation. Untreated buildings carry our 10-year anti-rot guarantee.
Pressure treated: the timber is loaded into a sealed vessel where a vacuum draws the air out of the wood and preservative is then forced in under pressure. Because the preservative is carried into the timber rather than sitting on the surface, it keeps working as the wood weathers, giving longer-lasting resistance to rot, wood decay and insect infestation and reducing how often you need to re-treat. Pressure treated buildings carry our 15-year anti-rot guarantee.
A few things worth knowing before you choose:
- The guarantee covers the timber against rot, wood decay and insect infestation.
- Pressure treatment affects biological decay only. It doesn't change the strength of the timber, prevent water ingress, or increase strength.
- Pressure treated timber still takes paint and stain once it has dried. Treatment protects the wood, but a coating is what gives you colour and UV protection, so most customers still finish their building to suit their garden.
Customer Images
BillyOh Devon Log Cabin
As part of our range of log cabin products, the Devon comes with 44mm wall thickness. We offer multiple upgrade options, such as log cabin treatment, double glazing, or upgrading the floor and roof from robust 11mm Tongue and Groove to 15mm.
The Devon is delivered as a flat-pack building made from strong interlocking log boards with tongue and groove connections. All fixtures and fittings are included along with comprehensive assembly instructions, and this building is quick and easy to install!
This garden cabin has a reverse apex roof offering you and your guests increased headroom. This reverse apex style is synonymous with log cabins giving you a classic yet extremely stylish finish to your building. The Devon is one of our smaller Log Cabins, making it perfect for a garden office or a space to relax in the comfort of your garden. Natural light floods in through the large, fully glazed double doors and opening front window.
Options such as a garden bar can be added to your building; these are built with the same quality materials and hold the style of a traditional log cabin transforming your building into a great hosting space. Customise your building further with our wide range of paints and create the perfect garden building for your garden.
Premium Quality BillyOh Log Cabin
The Devon Log Cabin is a premium option garden building that you can be proud of. With Modern style windows, this cabin provides you with a stylish building in your garden and will be a stylish addition to your outdoor area.
Whether you’re looking for an attractive summer house, a home gym, or a home office for working from home, the Devon Log Cabin will accommodate your every need.
The 6-foot high reaching offset double door design is a unique feature that maximises the potential of your inner space allowing you to fully utilise the cabin however you want to.
Premium Living Space
If you’re searching for a cost-effective, creative way to extend your living space then a BillyOh Devon log cabin is the ideal solution and is much cheaper and quicker than building a conservatory or extension. Easily used as a games room to enjoy with family or friends or a summerhouse for unwinding and relaxing, a premium log cabin is completely versatile meeting all your needs.
The Devon is designed with your comfort and satisfaction in mind, enabling you to spend more time outdoors, getting the most out of your garden. Creating your very own outdoor lifestyle has never been easier and with the 2.4m building height affording you plenty of headroom, giving a spacious feel, you’ll never want to leave your BillyOh log cabin.
A Garden Building for All Your Needs
The Devon Log Cabin is your perfect garden find.However you wish to furnish and decorate the inside of your building, the tall double doors allow you to easily move your furniture and accessories in and out and the offset design of the doors offers maximum floor space, allowing room for larger furniture items such as desks, gym equipment and sofas - whatever you like!
Cabin Home Gym or Garden Office
The cabin is versatile and you can transform the extra space into whatever you like! The larger buildings are ideal for use as a home gym or games room where you can entertain your friends. Or they make the perfect space to turn it into a living space where you and your loved ones can relax in the comfort of your garden. The Devon is also ideal to turn into a home office, perfect for those who work from home or run a business from home. The cabin gives you somewhere private and quiet to work, away from the rest of the house.
44mm Interlocking Log Walls for Year-Round Use
The Devon Log Cabin is built from thick interlocking log boards. Each log has precision-cut double tongue and groove edges that slot tightly together, while the logs themselves cross over at the corners to create a strong, weather-resistant structure. This interlocking system provides superb stability, insulation, and long-term protection for both the cabin and its contents.
The 44mm thick walls naturally keep out wind and rain, ensuring your cabin stays warm and dry in harsh conditions. And when summer arrives, the large glazed doors and windows bring in light and ventilation, keeping the interior cool and inviting. With options for 11mm or 15mm roof boards, you can choose the perfect level of protection to suit how you want to use your cabin — whether as a garden office, studio, or relaxing retreat.
Choose your Doors and Window Option
If you wish to use your building as a summer getaway, the single glazed windows and doors will be perfectly suitable for you. The double glazing option we offer enhances the safety, and reliability of the cabin and also shuts the cold weather out; ideal if you’re looking for a cabin for year-round use.
What Is SAN Glazing?
Styrene Acrylonitrile (SAN) glazing is a high-strength rigid plastic glazing that’s UV-stable and shatter resistant. Aesthetically pleasing and safe to handle it comes at an attractive price point.
Toughened, double-glazed glass may be available as an upgrade. Features of toughened glass include added strength versus regular glass and double-glazing with a space between panes to reduce heat transfer.
How does my building arrive?
Log cabins are delivered via kerbside delivery as stacks of pre-assembled panels that require fitting together. All panels are designed to be smaller enough to fit down side entrances and even for transport through houses.
Add the Finishing Touches
You can further customise and enhance the building by putting your own personal stamp on your new Devon Log Cabin by painting and decorating it. We recommend adding an annual treatment or paint for untreated cabins for the best weather and heat protection to keep them in their best condition and looking pristine for years to come.
Easier and Better For You
You'll have all the headroom you need to house tall furniture and equipment or hang lights in your cabin. The eaves height, which is the lowest point of the roof at 2.04m, has also been raised to allow for a higher ceiling, keeping your cabin feeling fresh and airy. The tall double doors give extra entrance clearance; perfect for adding and transporting furniture. This also prevents the need to duck down as you enter the cabin.
Planning Permission
The BillyOh Devon has been designed at 2.4m tall to comply with most planning regulations. Depending on location and intended use, planning rules vary, therefore we advise you to contact your local borough council for more information regarding planning permission and building use restrictions before purchase.
What’s in the Pack (Cabin Inventory)
The Devon Log Cabin comes with the following standard parts: 44mm Tongue and Groove timber walls.
- Roof with your finishing of choice
- Pressure-treated bearers
- All fixtures and fixings to complete the log cabin
- Clear and easy to understand assembly instructions including building plans and itemised parts
We also have other options for you to choose from:
- Single glazed doors and windows (to be glazed by your) or
- Toughened double glazed doors and windows (pre-glazed to save you time)
- 11mm flooring suitable for seasonal use or
- 15mm flooring suitable for high-intensity usage and for year-round usage
- 11mm standard roof option or
- 15mm for a stronger roof
Garden Buildings Direct Delivery
At Garden Buildings Direct, we make premium garden log cabins from high-quality materials at a price that stays affordable — and your BillyOh Devon Log Cabin is delivered free to most of mainland UK. Simply enter your postcode during the order process and we'll confirm straight away whether free delivery applies to you, along with the current lead time for your chosen build. You'll be kept updated from the moment you order through to the day your cabin arrives. If you have any questions along the way, our friendly customer service team are on hand to help.
| Dimensions | |
|---|---|
| Cladding Sizes Available | 44mm 44mm |
| Door Opening Size (w x h) | 156cm x 185cm 5'1" x 6'1" |
| Window Dimensions | 65.6cm x 121.1cm 2'2" x 4' |
| Depth | 238cm 7'10" |
| Eaves Height (Inc Floor) | 204cm 6'8" |
| Eaves Height (Excl Floor) | 208cm 6'10" |
| Ridge Height (Inc Floor) | 242cm 7'11" |
| Ridge Height (Excl Floor) | 238cm 7'10" |
| Door Width | 77.4cm 2'6" |
| Door Height | 187cm 6'2" |
| Depth (Internal) | 212cm 6'11" |
| Width | 363cm 11'11" |
| Width (Internal) | 331cm 10'10" |
| Minimum Base Width | 359cm 11'9" |
| Minimum Base Length | 239cm 7'10" |
| Materials | |
| Glazing Material | Single Glazed (SAN) or Double Glazed (Toughened Glass) Single Glazed (SAN) or Double Glazed (Toughened Glass) |
| Features | |
| Cladding Style | Tongue and Groove Interlocking Boards Tongue and Groove Interlocking Boards |
| Door Style | Double Doors Double Doors |
| Windows | 1 opening windows 1 opening windows |
| Factory Basecoat Treatment | Optional - Non Treated or Pressure Treated Optional - Non Treated or Pressure Treated |
| Roof Style | Reverse Apex Reverse Apex |
| Material | Wood Wood |
| Overhang Style | Traditional Styled Overhang Traditional Styled Overhang |
Devon Customer Testimonials
Hayley
Catharine
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