Garden Buildings

Whether you need an office or sunroom, garden rooms and annexes are the perfect solutions to creating more space on your property without the need for an expensive and disruptive extension.

Using our panelised building system, Sips UK supply and manufacture bespoke garden building kits for keen do it yourself-ers and builders looking for their next project. These kits are manufactured to your specifications at our state-of-the-art factory, offering a complete turnkey solution with a made-to-measure design.

Structural insulated panels can provide you with a high quality, thermally insulated building in a fraction of the time of a conventional build, saving you money by minimising labour costs and energy bills. Whatever your garden room will be used for, you’ll be reaping its benefits in no time when you choose a SIP building kit.

Simply send us a sketch of what you’re looking for, and we can provide a quote for supplying and delivering a bespoke SIP kit for your design and specifications, including engineering calculations for building control purposes where necessary.

Garden Building Range

The Office Bloc Lymington Cadnam Sway Beaulieu

Our flat pack building kits offer an easily assembled garden room solution for any DIY enthusiast; we manufacture the parts that make the structural shell, and you can then give it your own unique finish. Sips UK can provide our advanced kit & assembly service to assist you further!

Sips UK Standard range of garden building kits are available off the shelf

Each of the 5 styles has been specially designed to use a combination of stock panels and components that simply require to be picked and packed from stock which enables a fast turnaround

Starting with any of Sips UK's Garden Building Kits, you could then customise the kit by adding any of the following options. The external pack for example would enable you to make the building wind and watertight allowing you to complete the internal fit out at you leisure.

The Standard Kit

  • 95mm Sip panels for the floor and walls cut and rebated to suit the required design
  • 145mm Sip roof panels again to suit the required design
  • Insulated connecting splines and treated C24 timber
  • Breather membrane for the external walls
  • Specialist Structural Foaming adhesive and specialist screws for the wall and roof junctions
  • Manufacturing drawings and comprehensive assembly instructions

Advanced Kit

Exterior Finish:

  • One Piece rubberised roof membrane, edge trims, adhesive and fixing kit
  • UPVC Windows and Doors to suit
  • Treated battens
  • External cladding and trim pieces
  • Fixings and Silicone sealant


Interior Finish:

  • Treated battens
  • V-grooved MDF primed white and trim pieces
  • Laminate flooring and underlay


Offsite Assembly Option

Sips UK can assemble and finish your garden building in a factory controlled environment whether it be one of our standard kits or a bespoke one. We can then deliver the completed building and it can be craned into place.

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For more information call us on 01933 353501