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Home » Summer Houses » Summer Buildings By Size » 4m x 3m Summerhouse

4m x 3m Summer House

Shop 4m x 3m summer houses at Leisure Buildings. Ideal for garden offices, gyms or relaxing spaces, crafted from quality timber with secure, weather-resistant designs.

FREE Installation
Toughened Glass
Bespoke Options
Coloured Paint Option
Insulation Options
Base Building Option
Garden Room Showroom
Wooden Floor & Roof
Double Door Option
Apex or Pent

Any queries? Showroom Place order
1st Choice – Known For Quality – Loved For Design
★★★★★Trustpilot ReviewsWhiteSpark Feedback

Wooden tongue & groove summerhouse with glass doors and windows. The doors are open to reveal a well lit interior.

All of our 4m x 3m summer houses are made from redwood deal (not cheap whitewood) with solid wooden floors and include free installation. Available in sizes from 7×5 right up to 28×16. Bespoke designs available. Toughened glass is standard. Base building service. Free local site surveys. VIEW at our summer house display site, near Guildford, Woking and Ripley in Surrey.

Building Type

Cladding

Roof Type

Sizes (Any Size Made)

Assembly

Height

Insulation Options

Showing all 19 results

  • Special Deals A green garden summerhouse with white trim and doors open to show the interior. The shed is surrounded by a beautiful garden.
    From £4931
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Platinum Apex Fleet

    Platinum Apex Fleet

    View Product
  • A wooden Platinum 12x12 Pent Odiham Garden Room with double doors and windows. Made in Britain
    £8,565 Fully Insulated 12ft x 12ft (Also, sizes up to 20 x 12) Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall Colour Treatment options Optional UPVC Doors & Windows

    Platinum 12×12 Pent Odiham...

    Platinum 12×12 Pent Odiham...

    View Product
  • A Platinum 10x10 Pent Odiham Garden Room with double doors and windows. Made in Britain
    £6,969 Fully Insulated 10ft x 10ft (Also, sizes up to 20 x 10) Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall Colour Treatment options Optional UPVC Doors & Windows

    Platinum 10×10 Pent Odiham...

    Platinum 10×10 Pent Odiham...

    View Product
  • A green Platinum 8x8 Pent Odiham Garden Room with an open door and window. The shed is in a well-manicured garden.
    £5,435 Fully Insulated 8ft x 8ft (Also, sizes up to 20 x 8) Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall Colour Treatment options Optional UPVC Doors & Windows

    Platinum 8×8 Pent Odiham...

    Platinum 8×8 Pent Odiham...

    View Product
  • A wooden Platinum 8x6 Pent Odiham Garden Room with double doors and windows. Perfect for garden storage or office.
    £4,757 Fully Insulated 8ft x 6ft (Also, sizes up to 20 x 6) Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall Colour Treatment options Optional UPVC Doors & Windows

    Platinum 8×6 Pent Odiham

    Platinum 8×6 Pent Odiham

    View Product
  • Platinum 6x10 Apex Fleet Garden Room with open doors and windows
    £5,709 Fully Insulated 6ft x 10ft (Also, sizes up to 14ft deep)
    Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall UPVC Doors & Windows Option Colour Treatment option

    Platinum 6×10 Apex Fleet...

    Platinum 6×10 Apex Fleet...

    View Product
  • A green Platinum 6x12 Apex Fleet Garden Room with open white doors and windows, surrounded by plants and trees.
    £6,257 Fully Insulated 6ft x 8ft (Also, sizes up to 14ft deep)
    Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall UPVC Doors & Windows Option Colour Treatment option

    Platinum 6×12 Apex Fleet...

    Platinum 6×12 Apex Fleet...

    View Product
  • Platinum 6x8 Apex Fleet Garden Room with large windows and a sloping roof.
    £4,931 Fully Insulated 6ft x 8ft (Also, sizes up to 14ft deep)
    Free Assembly & Delivery* Double Glazed as Standard UNDER 2.5m Tall UPVC Doors & Windows Option Colour Treatment option

    Platinum 6×8 Apex Fleet...

    Platinum 6×8 Apex Fleet...

    View Product
  • Special Deals A wooden garden shed with glass doors and windows, surrounded by a beautifully maintained garden.
    From £3589
    8x6 to 16x14
    2.4 x 1.8m to 4.8 x 4.2m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Highclere Apex

    Platinum Highclere Apex

    View Product
  • Special Deals A green garden shed with open doors and windows. Made in Britain.
    From £3415
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Twyford Pent

    Platinum Twyford Pent

    View Product
  • Special Deals A small grey garden building with white trim and doors. The building has a garden path leading to it.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Winchester Apex

    Platinum Winchester Apex

    View Product
  • A wooden garden shed with double doors and windows, surrounded by greenery. A garden path leads to the shed.
    From £2,114
    5 x 8ft to 12 x 16ft
    1.5 x 2.4m to 3.6 x 4.8m
    Free Installation
    Colour Paint Finish Option
    Bespoke Options

    Diamond Keymer Contemporary

    Diamond Keymer Contemporary

    View Product
  • A blue garden shed with double doors and windows. A serene garden background
    From £1,705
    5 x 7ft to 12 x 16ft
    1.5 x 2.4m to 3.6 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Bespoke Options

    Diamond Washington Classic

    Diamond Washington Classic

    View Product
  • A garden shed with light blue walls, white trim and a white roof. The shed has a double door and several windows.
    From £2,114
    5 x 8ft to 12 x 16ft
    1.5 x 2.4m to 3.6 x 4.8m
    Free Installation
    Colour Paint Finish Option
    Bespoke Options

    Diamond Bolney Georgian

    Diamond Bolney Georgian

    View Product
  • A wooden garden summerhouse with glass doors and windows in a garden
    From £1,520
    5 x 7ft to 12 x 16ft
    1.5 x 2.0m to 3.6 x 4.8m
    Free Installation
    Colour Paint Finish Option
    Bespoke Options

    Diamond Ashington

    Diamond Ashington

    View Product
  • Special Deals A green garden shed with large windows and doors. Made in Britain
    From £4931
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Platinum Pent Odiham

    Platinum Pent Odiham

    View Product
  • Special Deals A green wooden summerhouse with white trim and doors. A garden shed with large windows.
    From £3399
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Kingclere Apex

    Platinum Kingclere Apex

    View Product
  • Special Deals A wooden garden shed with double doors and windows. Made in Britain.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Winchester Transverse

    Winchester Transverse

    View Product
  • Special Deals A wooden garden summerhouse with double doors and windows, surrounded by a garden.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Winchester Pent

    Platinum Winchester Pent

    View Product
Any queries? Showroom Place order
Painted summerhouse
Insulated Range
Combo summer house Shed
Shed show rooms

View More Summerhouse Images
Click on images below to see larger versions of summerhouses
image of Diamond Arlington Summer building
image of Diamond Ashington sun room
image of Diamind Bolney summer building
image of Diamond Bracklesham octagonal building
Click on images below to see larger versions of summerhouses
image of Diamond Eastbourne Summer building
image of Diamond Keymer apex or pent
image of Diamond Washington summer building
image of Diamond Worthing corner building
l
Click on images below to see larger versions of summerhouses
image of Platinum corner building
image of Platinum corner summerhouse
image of Platinum Fleet Apex Insulated Luxury summerhouse
image of Platinum Hamble corner building
Click on images below to see larger versions of summerhouses
image of Platinum Highclere summer building
image of Platinum Kingclere summerhouse
image of Platinum Norton Octagonal summerhouse
image of Platinum Pent Odiham Insulated summerhouse
Click on images below to see larger versions of summerhouses
image of Platinum Twyford summer building
image of Platinum Winchester Georgian summerhouse
image of Platinum Winchester pent summerhouse
image of Summerhouse with side shed
Click on images below to see larger versions of sumerhouse shed combos
image of apex summerhouse with side shed
image of Bespoke pained summer building shed
image of bespoke summerohuse shed store
image of combined made to measure shed summerhouse
Click on images below to see larger versions of combination garden rooms with shed
Choose from a large range of Sadolin colours and make your new Diamond painted summerhouses special.
We recommend OPTIONAL Demidekk Ultimate log cabin paint range which can be colour matched to suit. See examples in our photo gallery.
Image gallery of painted summerhouses - 1st Choice Leisure Buildings
Royal treatment chart available for pre-painted summ houses - 1st Choice Leisure Buildings
Image gallery of painted summerhouses - 1st Choice Leisure Buildings
Royal treatment chart available for pre-painted summ houses - 1st Choice Leisure Buildings
Please note that all colour shown are indicative only and will vary depending upon the light on the day the photo was taken. Additionally all screens will display the image differently. If exact colour is essential then please order a sample pot.

Why Choose A 1st Choice 4m x 3m Summer house?

Choosing a 4m x 3m summerhouse from 1st Choice Leisure Buildings offers a blend of quality, functionality, and aesthetic appeal. The size is ideal for creating a versatile space for relaxation, a home office, or a hobby room.

Built with durable materials, these summerhouses are designed to withstand the elements while providing excellent insulation for year-round use. The customisable options allow you to tailor the design to match your garden’s style and personal preferences.

Plus, 1st Choice’s commitment to customer satisfaction ensures you’ll receive reliable support throughout the buying process, making it an intelligent investment for enhancing your outdoor living space.

Choosing A 4 x 3m Summer House From 1st Choice Leisure

When choosing a summer building, you need to check the specifications to ensure it will have the strength to last. So always check out the thickness of the timber, whether it’s made from redwood or the cheap inferior whitewood, how thick the framing is, etc.

Are the doors and windows’ joinery made, meaning they will last a long time? Does it have toughened glass for safety or imperfect horticultural glass, plastic, or perspex? These are all important questions.

Insulating My Summer Building

To make the most of your new building, it’s a good idea to have it lined and insulated to get the most use out of you all year round. Doing so will keep the building cooler in summer and warmer in winter. It’s possible to do this yourself if you feel confident.

However, there is an option to do this for you on all the Platinum buildings. It can be seen as a luxury, but you will be glad you did on those hot summer days or cold winter days. Just contact us, and we will arrange a free quote for you.

Free Installation Included As Standard On All Diamond & Platinum Buildings.

On many of the buildings available on the web, you will find that they will deliver them to your house and leave them for you to build. You can save a little money this way, but you must assemble it yourself. That’s OK if you are a good DIYer, but it will still be hard work.

The best option is to take advantage of 1st Choice’s FREE assembly option on the Diamond and Platinum buildings. They will do all the hard work – all you need to do is build a level base for it to go onto. And they can even arrange that for you as well if you wish.

This way, you can be sure your new building will be built correctly, and all you need to do is enjoy it.

This 4m x 3m Summerhouse Can Be Bespokely Made Just For You

We have a wide range of summerhouse sizes and styles for you to choose from. However, we specialise in making buildings to suit your needs. Whether you need a taller summerhouse, extra or fewer windows, or doors and windows moved, we can do that for you.

Ensure you buy the building that suits you and your family without compromise. Call us on (01483) 237550 or visit our showroom to discuss what you would like. We are happy to provide a quote that suits you without pressure.

Can I Have Different Paint Finish On My New Building?

We provide a protective treatment on all our buildings, but why not consider one painted with Sadolin (Diamond Buildings) or Valtti (Platinum Buildings) paint stains.. Both are available in various colours so you can find a colour that suits you.

Be Careful When Buying A New Building

Before deciding on a new summer house for your garden, you should always do your homework (sorry!) as it’s very easy to be taken in with a flashy website leaflet or colour brochure. Try to find time and make a trip down to our showroom where you can see examples on view.

You will then be able to decide what you may be buying. We have a large collection of wooden buildings that you are welcome to view. We will be delighted to show you the different buildings and answer any queries you may have. We can also provide quotations.

Another thing to do is to take a look at the feedback from previous customers which can be enlightening.

1st Choice Show Room, twixt Woking, Ripley and Guildford in Surrey

All our 1st Choice summer buildings can be made in sizes that meet your requirements. Just let us know what you would like, and we will quote for you. Don’t settle for second best—you know it makes sense.

These sunrooms can be made with internal partitions and extra doors, creating several different areas: one for leisure, one for storage, and one for the children. The choice is yours.

Why Not Consider An Integrated Shed Or Additional Room With Your Summerhouse?

Our Diamond and Platinum Buildings are available with an extra room to suit you. Whether it’s at the back, the side, or accessed from the front, we can make a summerhouse shed combo for you. Don’t compromise on what you would like to meet your requirements. Contact us NOW to chat through your needs, or visit us to see examples for yourself.

Design Your Bespoke Summer House 4m x 3m In Size Today

To start work on your bespoke building for your garden, get in touch with us or visit our Surrey showroom today.

Any queries? Showroom Place order

Painted summerhouse
Insulated Range
Combo summer house Shed
Shed show rooms

FAQs For Summerhouse Sizes

No results!
  • Are These Summerhouses Truly Bespoke To Suit Me?
    Whether you need a taller summerhouse, extra or fewer windows, or doors and windows moved, we can do that for you. To start a custom order, simply contact us to discuss your specific needs and preferences.

    After we learn what you’re looking for, we’ll share a clear plan and price. Our team will walk you through each step to make things easy. Production and delivery usually take about 6 to 8 weeks, and we’ll keep you posted along the way.

    You can count on us to work hard and provide great service as we build the summerhouse you’ve been dreaming of.

    Make sure you get the right building for you and your family. Give us a call at (01483) 237550 or stop by our showroom to talk about what you need. We’re happy to give you a quote with no pressure.
  • How Long Does a Summer House Installation Take?
    Most buildings are assembled in a single day if your foundation is prepared before construction, and depending on the project's size. Our team handles the design, preparation, and delivery of all materials off-site to keep things running smoothly. This efficient process lets us install your structure quickly and with minimal disruption.
  • How Long Does Delivery Take?
    Delivery times change throughout the year, but they are usually between 4 and 8 weeks. For the latest information, please visit our dedicated delivery page. If you need your order by a certain date, please contact us. We will do our best to help.
  • How Long Will My New Building Last
    The durability depends on several factors, including the quality of materials used, the level of maintenance, and exposure to environmental elements. Proper care and regular maintenance can extend its lifespan, while harsh weather conditions and neglect may shorten it. Ensuring that the structure is well-built and using high-quality materials can also contribute to its longevity. Regular inspections and prompt repairs as needed will help to prolong the life of your summer room. Pressure-treated timber is also a good option to choose. You can see some guidelines on this page.
  • Should I View Before Buying?
    When considering a purchase, it is advisable to view the product beforehand, as it allows for a firsthand evaluation of its condition and suitability.

    Viewing the item can provide valuable insights into its quality, features, and overall appearance, which may not be fully evident through online descriptions or images.

    This can help in making an informed decision and potentially prevent any future dissatisfaction with the purchase. Therefore, viewing the product before buying is a prudent step to take to ensure a satisfactory outcome.

    Our showrooms are open seven days a week, and we have over 60 buildings on display.
See our 1374 customer reviews on ★ Trustpilot & WhiteSpark ★ Feedback

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Woking Show Site
1st Choice Leisure Buildings
Woking Garden Buildings Show Site
Sutton Green Garden Centre,
Whitmoor Ln, Sutton Green,
Guildford,
GU4 7QA
Phone: 01483 237550
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  • 1st Choice Leisure Buildings
    Woking Garden Buildings Show Site
    Sutton Green Garden Centre,
    Whitmoor Ln, Sutton Green,
    Guildford, GU4 7QA
    Twixt Woking, Ripley and Guildford in Surrey.

    Call us: 01483 237550

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