GD Timber testimonials label
GD Timber Designs
GD Timber Designs
GD Timber Designs


Although all our buildings are made to order and therefore each building is unique the following materials are standard across all our designs and are included in the price:
50mm x 75mm FSC sourced pressure treated softwood framework.

19mm x 126mm FSC sourced treated softwood shiplap exterior.

Exterior treated with Sadolin Superdec in the colour/stain of your choice.

18mm Wayrock chipboard flooring throughout.


Our buildings can be finished internally to your specification, whether they are left unlined to 1st fix or insulated and plasterboard lined. They can be finished to 2nd fix (i.e. filled and painted to the colour of your choice) if you are based within a 60 mile radius. As every client has different requirements and indeed different uses for their garden building, each finish is unique. For example, if you prefer a different interior (i.e. tongue and groove or ply lined) we will be happy to undertake whatever finish you require. Insulation too can be a variety of materials including standard dry wall, Eco sheep wool (thermafleece) or soundproofed. Please contact us for a free quotation or advice. We can also construct interior benches, desks and mezzanine flooring.

Although we don't have our own electricians, plumbers and landscapers we have a reliable team that we use on a regular basis who will be happy to come and give you a separate quotation for the work involved. We will then project manage the construction on your behalf at no extra cost.


We have completed a varied range of roofing styles for our Clients. Our standard roofing is felt but we also undertake corrugated onduline, slate composite, cedar tiles, clay pan tiles and felt tiles in a variety of colours. We are also able to offer our clients the option of a green/sedum roof. 

Roof specification pic


Our 1st fix flooring is 18mm Wayrock chipboard, included in the price as standard. If you would like a 2nd fix floor we offer a pre-engineered Oak flooring finish. If you have another style of flooring in mind, please call us for advice and a quotation.

Specification flooring pic

Windows and doors

Our standard windows for sheds and wendy houses are made from plastic safety glass. Our garden offices and studios are normally finished in double-glazed softwood timber framed windows to each clients specification.

Our doors can be solid wood or double glazed with any style of window you prefer. Please browse our gallery page to see the wide variety of styles and finishes.

Bike Storage Shed, London Enough to house 4 bikes. 2m wide x 1.9m deep with felt tiled roof and lockable double doors.

Bike Shed 2 Thumbnail

A similar building would cost c. £978 + delivery