3m Garden Rooms

3m garden room options here provide bright, airy spaces for work or leisure. Whether you’re looking for a hobby room, a snug home office, a gym, or just somewhere to sit and relax, an insulated 3m garden room can provide you with the space you need.

3m garden room options here provide bright, airy spaces for work or leisure. Whether you’re looking for a hobby room, a snug home office, a gym, or just somewhere to sit and relax, an insulated 3m garden room can provide you with the space you need.

18 products

Built to stand the test of time, these buildings feature 72mm double-skinned walls and efficient insulation using EcoQuilt technology. Buildings in the Sherwood range have 100mm double skinned walls, giving even more insulation. The floors are constructed from attractive and hard-wearing tongue-and-groove wood, featuring Air Tech insulation technology, and double-glazed windows complete the design.

All our insulated garden rooms are manufactured in the UK using only responsibly sourced timber, and come with a 10-year anti-rot guarantee as standard. They are also designed in compliance with 'permitted development' rules to allow you to expand your living space without requiring planning permission. For further details, see our article on planning permission for garden buildings. Also be sure to check out our guide to buying an insulated garden room to find out more about all the options available to you.

Uses for a 3m wide garden room

A 3m wide garden room offers a versatile space for a wide range of activities. You can transform it into a home office, providing a secluded workspace that fosters productivity and creativity. Alternatively, indulge your passion for fitness by converting it into a small private gym or a tranquil yoga room.

As a cosy retreat, your room can serve as a reading nook or an artist's haven, making use of natural light for inspiration. For small social gatherings, a 3m wide garden room can be your entertainment hub, accommodating game nights, movie marathons, or intimate dinners.

Alternatively, embrace mother nature and use the space as a stylish growing room for cultivating plants and herbs. With its adaptability and charm, a 3m wide garden room can be more than just an extension of your home – it’s a blank canvas for your own diverse personal interests and lifestyle.

Can someone install my 3m wide garden room for me?

Yes, absolutely – aside from the DIY range, our complimentary home installation comes standard with all our garden rooms. The process is designed to be completely straightforward for you – all you need do is prepare the foundation with a concrete or paving slab base (or opt for a ground screw base when you make your purchase), and then our team of professionals manage the installation of your new garden room. For detailed instructions on how to prepare the foundation, refer to our guide on garden room base installation

3m wide garden rooms – more info

 Find the perfect place to work, rest and entertain with a versatile 3m insulated garden room. Each can be custom designed to meet your own specific requirements.

Turn your Waltons garden room into a luxury home office, garden studio or entertainment space. Made from high quality materials, these garden buildings are designed for year-round use. Double skinned, 72mm thick walls, double glazed windows and insulation in the walls, roof and floor retain heat for comfortable use whatever the weather.

Emma says of her 3m wide building:

"This building makes a fabulous home office. We've had electricity installed and my desk and office furniture fits perfectly. The building is very substantial and the wood looks superb. The windows and doors seem to be really well built."

Why choose a 3m insulated garden room?

An insulated garden room extends your home in one easy purchase, with no need for tricky planning permission or a messy and expensive extension. And don’t worry if you’re not good at DIY – our free installation service takes care of all the hard work for you.

We have other spectacular garden buildings here at Waltons, but what makes the insulated garden rooms stand out is their all-year-round comfort. EcoQuilt insulation and thick double-glazing keep the interior cool in summer and warm in winter, meaning you can use the office during the day, entertain in the evenings, or work out at any time in comfort.

Our cosy 3m wide garden rooms are perfect for smaller gardens. The 3m x 3m garden room makes a light, bright and comfortable place to set up a desk, craft table or exercise bike. Recessed exterior spotlights help you find your way to and from the building at night, and sunlight floods in through the wall of floor-to-ceiling glazing during the day.

If you’ve got extended family to cater for and want to use the space for entertaining, consider getting a more spacious 5m x 3m garden room. You’ll be able to add a larger table, a sofa and even a drinks area tucked into a corner.

Can I customise my insulated garden room?

Just because our garden rooms are off the shelf doesn’t mean they can’t be personalised to suit you! Our modular designs allow you to choose where you’d like to place your windows and doors before delivery. Just give us a call to discuss where you’d like them when you make your order.

At the checkout, add a high quality wood treatment to paint the exterior of your 3m garden room. This will keep your timber healthy and start your 10 year anti-rot guarantee. Just give it a new coat every year to keep the guarantee rolling.

After we’ve installed your new garden room, there’s nothing to stop you from transforming it into a home gym, dream hobby space or home office. Lighting has a big impact on the feel of any interior, so choose whether you want traditional wall lights, multi-colour LEDs or warm hued lamps.

Make sure you use a professional to install an electrical supply to your garden room. This type of work must comply with building safety regulations. Find out all you need to know about getting your shed hooked up to the mains in our blog article.

How much does it cost to have an insulated garden room delivered and installed?

We don’t charge for the delivery or installation of your insulated garden room – that’s all included in the purchase price. Simply pick a day and we’ll deliver your garden room between the hours of 7am and 7pm. We’ll inform you in the morning via text or email of the two hour delivery slot so you don’t have to hang around all day! On installation day, our team will call in the morning with a rough ETA. They’ll come and professionally install your garden room on the base you’ve prepared, and clean up afterwards.

What foundation is best for an insulated garden room?

We recommend a paving stone or concrete foundation for your insulated garden room. These bases stand the test of time and, if completely flat and level, create a sturdy base to keep your timbers aligned.

It’s always a good idea to get a professional in to make sure you get the best results, but if you feel up to the task yourself, take a quick look at our comprehensive base building guide for the best way to go about it.

How to connect a garden room to the internet

You can connect your garden building to the internet in a few different ways. It’s quickest to simply use mobile tethering to get online in your garden shed but if you need lots of data to download big files and video call, consider a more permanent option like extending your current home WiFi or laying an ethernet cable.

Read our guide to getting your garden building online for tips on how to get your garden room connected.

Related content:

Read more about insulated garden rooms on our blog and support pages.

Customer Service

Whatever your question about insulated garden rooms or any Waltons product, we're happy to help. Just use one of the links below to get in touch with us or find more information