Rectangular Summerhouses


Rectangular Summerhouses

From £4,727

The high-quality, fully customisable rectangular summerhouse can be as large or small as you need. The traditional pyramid roof and window glazing bars make this summerhouse a popular choice for a garden getaway.

The size can be increased in 60cm increments and the doors, windows and colours changed as you please. Take a look at some popular design examples or talk to the team about a completely bespoke summerhouse.

4.8/5 Based on 109 reviews


2.4m x 1.8m

See details & spec for more information on available sizing.

*All prices include VAT. For assembly between 50-75 miles from BA14-0DT add 20%. For 75-100 miles, add 30%. Within M25 and over 100 miles, add 40%.

Size guide Enquire

Included as standard

  • 2.4m x 1.8m Summerhouse
  • 19mm Tongue & groove floor
  • 28mm Thick walls
  • 2x Decorative copper cap
  • Choice of five roof shingle colours
  • Delivery to the UK via articulated lorry - delivery charges for a smaller vehicle will apply where access is restricted

Optional extras

*Only available with Garden Affairs assembly

Total cost:

Building Cost


Summerhouse Features

28mm / 44mm Thick Walls

The high-quality summerhouse can be built in 28mm or 44mm slow-grown Nothern European Spruce.

Available for DIY Assembly

The Summerhouse can be installed as a DIY project, complete with fittings and instructions, or assembled by our team of experts.

Fully Customisable Design

The Rectangular Summerhouse might be the summerhouse for you. But if not, the building can be fully customised to suit.

Traditional Pyramid Roof

The classic pyramid-style roof allows for extra internal height and comes finished in a choice of five popular shingle colours.

Double Glazed Doors & Windows

The doors & windows are all timber-framed and double-glazed as standard. Add timber glazing bars to add to the traditional design.

  • Details & Spec
  • Custom Options
  • Advice & Resources
  • FAQs

Details & Spec

The Summerhouse features an attractive pyramid roof for a spacious interior feel and is finished with high-quality, residential standard felt shingles in a choice of five natural colours. A beautiful cedar shingle or a slate effect roof is also available.

As standard, the Summerhouse has a double glazed French style, glazed door and a single opening casement window, allowing for a light and airy feel. But extra doors and windows and alternative doors and windows are available.

This quality small summerhouse is constructed from premium quality, kiln-dried, 28mm Northern European pine. A 19mm timber floor is included. All timber is from sustainable sources and offers a traditional wood finish ready for painting in the colour of your choice. Alternatively, the summerhouse may be factory treated and painted in a choice of 4 colours.

Specifications Size
Wall thickness 28mm or 44mm
Roof height 2800mm - 3500mm
Eaves overhang 250mm
Base dimensions From 1.8m x 1.8m to 4.8m x 3m
Doors 1x Double door
Windows 1x Top-hung opening window

Custom Options

The Rectangular Summerhouse is a fully bespoke product. Choose between the following custom options to make a summerhouse that suits your garden.


Change the size in 60cm increments between 1.8m x 1.8m up to 4.8m x 3m.

Doors & Windows

Choose between a wide range of timber-framed, double-glazed doors and windows. Add timber glazing bars to create a traditional aesthetic.


Pick between five factory-painted colours for the doors, windows and walls, or have the building unpainted, ready for the colour of your choice.


The standard Bitumen felt shingles are available in a choice of five colours. Cedar and Cambridge Extreme shingles are also offered as an upgrade.


What if I don't see a garden building that suits my needs?

All our garden buildings can be modified to suit your needs. You can choose from a wide variety of door and window options and create your own size and layout. Alternatively, you can start from scratch with a made-to-measure design.

What are the benefits to insulation?

Insulation ensures that a garden building is warm in winter and cool in summer - offering the perfect environment for all-year-round use. We use high specification insulation similar to that used in modern loft conversions offering the maximum insulation property without affecting the interior appearance of your building. 

Design your own Summerhouse

Use the configurator design tool to create your dream Summerhouse!

Design tool

Example Designs

Below are some examples of alternative designs and configurations for the Rectangular Summerhouse.

Let's create your perfect garden summerhouse

Our team are on-hand to answer any questions and help design the garden office that's right for you.

Sharon Knight profile image

Sharon Knight

(1 year ago)

Excellent customer service. Delighted with the quality and build of our new garden office.

Matt Samuel profile image

Matt Samuel

(3 years ago)

Office purchase and set-up was a very simple experience. A recent wobbly door handle was fixed the same day. Great service.

Alex Veale profile image

Alex Veale

(4 years ago)

Garden Affairs are a fantastic company to deal with. I recently built a music studio with their 'Linea' design. The correspondence at every step was p... Read more

4.8/5 Based on 109 reviews

What our customers say…

“ Just a note to say what a great team came yesterday to install my cabin, they were superb. Worked all day without a break, in a very willing and enthusiastic manner. I am very pleased… Read more

Mr Edwards - Wiltshire

“ First may I say we are highly delighted with the cabin. My mother was full of praise for the workmen who did a brilliant job in difficult weather conditions. She was most impressed… Read more

Mr Steele - Poole

" Just want to say a big thank you to Richard and his Team.  From the initial website enquiry to the office design/configuration everything was very professional with great communication. The… Read more

Mr Tidball - Bridgend

Contact us about our Summerhouses

Please include as much information about the size and style of building you would like.

Alternatively - you can visit our showroom to see some of our garden buildings.

01225 774566
4.8/5 Based on 109 reviews

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