BillyOh Canvas Insulated Garden Room

Create your dream garden room with the BillyOh Canvas! Crafted with 15mm Tongue and Grooved panels, our thickest panel construction yet, insulated with high-performance multi-foil insulation and 14mm double-glazed windows, the Canvas is designed for all-year-round use. With a choice of uPVC doors and windows and an additional side window, this contemporary garden building will be the centrepiece of any garden.
Size measured in feet

2. Select Treatment

2. Customise

Transform your Log Cabin into your own bar with this garden bar unit

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.
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  • Insulated With High-Performance Multi-Foil Insulation
  • Fully Customisable Modular Garden Room
  • 15mm Insulated Panel Construction - Our Thickest Panel!
  • 15mm Tongue And Groove Floor And Roof
  • Premium 27x44mm Interior Framing
  • 14mm Double Glazed Windows For Year-Round Use
  • White Or Anthracite uPVC Glazing Upgrade Available
  • Wide-Opening Double Doors For Ease Of Access
  • Optional Side Window For Additional Natural Light
  • Optional Pressure Treatment For Longevity
  • Multi-Point Locking System
  • Complete With Felt, Fixtures And Fittings
Overall Dimensions (Includes Roof Overhang)
  • (A) Width: 3.08m (10ft1)
  • (B) Depth: 3.04m (10ft)
  • (C) Height: 2.39m (7ft10)
Canvas Logo
Fully Insulated
Fully Insulated

Eco Quilt insulated roof, floor and walls create an all year round building

10 Year Anti-Rot Guarantee
10 Year Anti-Rot Guarantee

Protects the wood on your building against rot and decay

Easy Assembly
Easy Assembly

Comes in pre-assembled modular sections for easy DIY installation

UK Manufactured
UK Manufactured

Over 20 years of experience in design and production

Canvas Insulated Garden Building

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Key Features

Contemporary Design

This stylish log cabin creates an iconic centrepiece for any garden. Floor-to-gable windows and doors provide a modern look and plenty of natural light.


Thanks to its full insulation, this garden building can be used for an array of uses, from a home office with a view of the garden to a beautiful relaxation space to entertain your family and guests.

Double Skinned and Insulated Walls

44mm thick framing and reflective multi-foil insulation are sealed between two 15mm Tongue and Groove cladding layers to form 66mm thick fully-insulated panels.

15mm Tongue and Groove

Constructed using our thickest panels yet, the Tongue and Groove walls offer a premium, weatherproof build with a stylish finish. The floor & roof is also 15mm Tongue and Groove.

Double-Glazed uPVC Doors and Windows

14mm double-glazed doors and windows as standard with optional uPVC window and door frame for peak energy efficiency.

EcoQuilt Insulation

Multi-foil insulation in the walls, floor and roof keeps your building at an optimum temperature allowing you to use your building all year round.

Versatile, Insulated, Luxurious

Suit the Canvas specifically to your needs. Pick from a number of sizes, the framing of the windows and doors, pressure-treatment, and even which side the additional window faces. No matter how you design yours, you can always rely on the strong tongue and groove wooden cladding, in-built multi-foil insulation, and double glazing to provide a touch of comfort and luxury.
Versatile, Insulated, Luxurious

A Blank Page For Your Story

The Canvas is a blank page, ready for you to write your story in. With the fully-adaptable and open nature of the interior, the Canvas can perform a range of functions and can act as an additional room for your house. Use it as a creative environment, a studio, an office, or - if you need a space to shed the stress - a bright living area or games room. Whatever your life needs, paint it on the Canvas.
A Blank Page For Your Story

How the Canvas is constructed...

1. 11mm Tongue and Groove Interior

The tongue and Groove roof provides a durable and attractive internal ceiling.

2. 44x44 Framing

Thick, durable framing adds extra strength to the roof and is designed to give you a robust and long-lasting building, with a significant air gap to enhance the insulation of the Ecofoil lining.

3. Ecofoil Insulation

This 6-layer Multifoil blanket ensures your building is comfortable year-round, cool and relaxing in the summer, and warm and cosy through winter.

4. 15mm Tongue and Groove Exterior

Tongue and Groove roof provides a durable, external roof - strong all year round, rain, wind or snow.

1. 15mm Tongue and Groove Boards

Provides an additional layer of insulation, and the thick Tongue and Groove floor offers a durable, solid foundation and underfoot to the building.

2. Ecofoil Insulation

Easy to install and protects against cold weather. Heat can easily be lost through the floor of your building, so our foil protects against this, making ita cosy space for all seasons.

3. 38x38 Pressure Treated Bearers

Make for a sturdy base to assemble your building. Pressure treated as standard to protect your building against moisture and rot.

1. 11mm Tongue and Groove Interior

A perfect base for you to decorate the interior of your building, ready primed to be painted or decorated however you prefer.

2. 27x44 Framing

Thick, durable framing adds extra strength to the walls and is designed to give you a robust and long-lasting building, and the added air gap enhances the insulation of your building.

3. Ecofoil Insulation

This 6-layer Multifoil blanket ensures your building is comfortable year-round, cool and relaxing in the summer, and warm and cosy through winter.

4. 15mm Tongue and Groove Exterior

Interlocking cladding offers a premium, weatherproof build with a stylish finish.

More About the Canvas Insulated Building...

Garden rooms are the perfect way to revolutionise the way you use your outdoor space and even your home. With a multipurpose building like the Canvas, that you can use all year round, you can give yourself a whole new room to live in.

With loads of customisable options and three sizes, you can make a Canvas Insulated Building that fits just what you’ve been searching for.

Modern Garden Room

The Canvas is the perfect example of a modern garden room. With its fully modular design, contemporary exterior look, and a swathe of reliable features and amazing upgrades, the only limit with this building is it your imagination. Not only will this insulated garden building unlock the potential of your home and garden spaces, it’ll look sleek and refined while it does so.

Insulated Walls

The Canvas’ hidden power is its insulating capabilities, which let it effectively retain heat and provide a comfortable indoor space that you can use throughout the year. It achieves with the structural composition of its walls which use a layering system to trap heat.

The insulating foil is wedged between the inner wall and outer cladding, providing effective insulation which is subtly hidden in the makeup of the building. To enhance the insulating power of the building, we also supply double-glazed window fittings so that there’s no easy way for that valuable warmth to escape!

Robust Framing

There’s no need to worry about the weather with the Canvas, designed to stand up to even the most chaotic conditions. It enjoys robust structural strength thanks to its super-strong timber framing. The 27x44mm beams provide firm robustness and let the building stand up to strong winds, lashing rain, and the worst storms the British weather can throw at it. That’s the reliability you get from Canvas.

Built for Natural Light

Life is never dull in a BillyOh Canvas, thanks to its natural-light-oriented design. With a series of huge windows and glazed doors that reach from the floor to the ceiling, as well as the option for an additional side window, this garden room will stay bright and fresh with an excess of natural light.

To get the best out of your building, place it somewhere it’ll get lots of sunlight. And, if you want to take your windows to the next level, you can opt for anthracite grey or white UPVC window fittings that provide ideal protection against harmful rays.

Tongue and Groove Timber

This building is cladded with 15mm tongue and groove log panelling which provides exterior strength as well as a clean, modern look. T&G cladding means that panels click together with “tongue” and “groove” sections that provide a smooth exterior and a sealed thermal envelope that’s essential for insulation.

Our Guarantee & Pressure Treatment

As a tongue and groove building, we provide the canvas with a fantastic 10-year guarantee as standard. This guarantee protects against decay, rot and insect infestation for a whole decade of use.

But that’s not all. Opt to have your Canvas building pressure treated, a chemical process that adds extra preservatives to the wood, and you can enjoy an extended guarantee for up to 15 years!

Free Delivery

As with all the amazing garden buildings in our extensive range, the Canvas is eligible for our free delivery offer. We deliver our buildings at no extra cost across the UK mainland. To discover if you can take advantage of this offer, simply take your building to the checkout and enter your delivery address.

Dimensions 10ft x 8ft 12ft x 8ft (3.5x2.5m) 14ft x 8ft
Width 308cm 366cm 425cm
Depth 304cm 304cm 304cm
Eaves Height (Inc Floor) 207cm 207cm 207cm
Eaves Height (Excl Floor) 193cm 193cm 193cm
Ridge Height (Inc Floor) 239cm 239cm 239cm
Ridge Height (Excl Floor) 219cm 219cm 219cm
Door Opening Size (w x h) 156cm x 185cm 156cm x 185cm 156cm x 185cm
Door Width 77.4cm 77.4cm 77.4cm
Door Height 187cm 187cm 187cm
Width (Internal) 293cm 351cm 410cm
Depth (Internal) 234cm 234cm 234cm
Window Dimensions 53 cm x 187.4cm 53cm x 187.4cm 53cm x 187.4cm
Glazing Thickness 14mm 14cm 14cm
Minimum Base Width 304cm 362cm 421cm
Minimum Base Length 245cm 245cm 245cm
Materials 10ft x 8ft 12ft x 8ft (3.5x2.5m) 14ft x 8ft
Glazing Material Double Glazed (Glass) Double Glazed (Glass) Double Glazed (Glass)
Floor Material Tongue & Groove Tongue & Groove Tongue & Groove
Roof Material Tongue & Groove Tongue & Groove Tongue & Groove
Features 10ft x 8ft 12ft x 8ft (3.5x2.5m) 14ft x 8ft
Door Style Double Doors Double Doors Double Doors
Overhang Style Pent Pent Pent
Material Wood Wood Wood
Roof Style Pent Pent Pent
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.

Below you'll find answers to the questions we get asked the most about our products.


The BillyOh guarantee covers this building against:

  • rot
  • decay
  • insect infestation

Please note: The guarantee does not cover timber splits or warping which may occur naturally over time.

Duration of Guarantee:

  • Tongue and Groove Buildings - up to 10 years
  • Log Cabins - up to 10 years
  • Pressure Treatment Buildings - up to 15 years

For more information about BillyOh Guarantee, please visit our terms and conditions

Because the building is fully insulated it can be used all year round for various uses, including but not limited to, a home gym, gaming room, salon, home office, gin bar or general family outdoor living. Whatever you use it for, in winter, you’ll be cosy and cool in the summer, thanks to the Multi-foil insulation.
The Canvas Insulated Garden Room is highly secure with tough, double-glazed glass windows and doors that feature a multi-point locking system with security measures like anti-pick, bump and drill door locking cylinders. With no exposed fixings, the garden building is both aesthetically pleasing and well-sealed.
Unplasticised polyvinyl chloride (uPVC) is a highly durable, low-maintenance building material alternative to timber. It’s used around window and door frames.

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

If you want to build your 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. 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 base.

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

We offer a range of roofing and flooring options, so depending on how you use your log cabin, you can choose the best one.

The Outpost comes with an 11mm Tongue and Groove Floor and Roof as standard. The interlocking roof and floor provide a reliable ceiling and a solid foundation underfoot. Tongue and Groove give your building a stronger construction and a premium look and feel.

With the upgrade to 19mm, you can opt for a more premium floor that’s also perfect for higher-intensity usage. This specific floor is the perfect option if you’re planning on using the building as an everyday use office, gym or games room with heavy objects.

The Canvas has 14mm double glazing as standard to provide extra insulation. This is created from toughened glass and the extra thickness will provide better insulation and keep your building warmer in those colder months of the year.
The Canvas panels are 66mm thick, with 15mm Tongue and Groove Cladding on the exterior, thick heavy-duty 27x44mm framing and 15mm of EcoQuilt insulation. Coupled with a large air gap to lock the heat in the building, this gives the same insulating properties as 100mm of Glass Wool or 50mm of Rigid Board. To finish we also use the same 11mm Tongue and Groove board to finish the interior and to ensure your building is sturdy and long-lasting.
The insulation used on the Canvas is a Highly Reflective 6 Layer Multifoil Insulation Blanket. It is designed to insulate Roofs, Walls and Floors. It is 15mm thick and is equivalent to around 100mm of Glass Wool or 50mm of Rigid Board.
The Canvas Garden Building is fully insulated so that it can be used all year round for various uses, from a hobby room, home gym, work from a home office or simply extra space to relax and retreat. Whatever you use it for in winter, you’ll be cosy and cool in the summer, thanks to the Multi-foil insulation.

The Canvas can be delivered to you untreated, providing you with a natural wood appearance. You must treat this annually and after assembly to protect your wood against rot or decay.

For increased longevity, you can opt for pressure treatment for your building. Here, wood is treated with chemical preservatives in a vacuum to allow them to penetrate deep into the wood’s fibres to resist rot or decay. Upgrading to a Pressure Treated Canvas means getting an extended 15-year guarantee.

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