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Home » Summer Houses » Summer Buildings By Size » 18 x 6 Summerhouse

18 x 6 Summer House

Quality 18ft x 6ft summerhouses with free UK delivery and assembly. Bespoke designs, insulation options, painted finishes. View our Surrey showroom today.

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

Configure Building Free Online Quote
Price query? Showroom Del Areas
1st Choice – Known For Quality – Loved For Design
★★★★★Trustpilot ReviewsWhiteSpark Feedback

A wooden summerhouse with shed with double doors and windows. Perfect for outdoor storage and hobbies.

All of our 18ft x 6ft 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.

Showing all 4 results

  • 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
  • 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
  • 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 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
Configure Building Free Online Quote
Price query? Showroom Del Areas
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
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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 18 x 6 Summer house?

An 18×6 summerhouse from 1st Choice Leisure Buildings provides both elegance and functionality for your garden. Its spacious layout lets you maximise your outdoor area, whether for relaxation or pursuing hobbies.

Constructed with premium materials, this summerhouse resists harsh weather and is built for durability. Expansive windows flood the interior with natural light and fresh air, creating an inviting atmosphere.

You can also customise your summerhouse to match your garden’s look, enhancing your outdoor space and adding value to your home.

Choosing A 18ft x 6ft 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 withstand the elements. So always check the thickness of the timber, whether it’s made from redwood or the cheap, inferior whitewood, and how thick the framing is, etc.

Are the doors and windows crafted with joinery, ensuring longevity? Does it feature toughened safety glass or inferior horticultural glass, plastic, or perspex? These questions matter.

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.

A smart option is 1st Choice’s complimentary assembly service for Diamond and Platinum buildings. Their experts build it for you. With a level base—help available if you need it—installation is effortless.

This way, your new building is expertly constructed, and all that’s left is to enjoy it.

Insulating My Summer Building

To fully enjoy your 6×18 building year-round, consider having it lined and insulated. This improves comfort by keeping it cooler in summer and warmer in winter. Confident DIYers can do this themselves.

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.

This 18×6 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 your needs. 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 18×6 summer house for your garden, you should always do your homework (sorry!) as it’s very easy to be taken in by a flashy website leaflet or colour brochure. Try to find time to visit our showroom, where you can see examples on display.

Here, you can assess what you’re considering. Browse our extensive collection of wooden buildings, and we’ll answer your questions and provide tailored 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

We can make any 1st Choice summer building in the size you need. Tell us what you’re looking for, and we’ll give you a quote. Don’t settle for less; choosing the right building is always the best decision.

Sunrooms can include internal partitions and extra doors, creating separate zones for leisure, storage, or 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 settle for less. Contact us now to discuss your requirements, or visit us to view examples.

Design Your Bespoke Summer House 18 x 6 In Size Today

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

Configure Building Free Online Quote
Price query? Showroom Del Areas

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.
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Our Location

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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