Holkham Summerhouses

A contemporary style of Summerhouse with an urban feel that can accessorize a certain outdoor look so well. With a pitched roof and clean lines, The Holkham gives a modern twist on a classical range. Plenty of glazing is built into The Holkham for a light and airy feel, which compliments this design, and each building is finished to our exceptional standards.

Building Sizes

Our Holkham Summerhouses are available in a range of sizes.

1.8 x 2.4m (6 x 8ft) to 4.8 x 6.0m (16 x 20ft)

Lining and Insulation

The Holkham Summerhouse comes lined and insulated. This makes it a perfect all-season retreat and greatly enhances the finished look of the building.

For the roof we have a 4 tier lining and insulation process; we insulate between the ply layer and the internal matchboard tongue and groove lining and finish the building with your choice of roofing material.

For the walls, we insulate your building, by trapping a breathable paper membrane between the studwork which acts a moisture trap. We go on to fill the cavity with insulation. There are then 2 options for lining your Summerhouse:

Natural matchboard lining

Natural matchboard lining

We can line with our highest grade tongue and groove matchboarding (15mm) leaving a natural warm feel.

Painted matchboard lining

Painted matchboard lining

We can use a channeled, secret-nailed, tongue and groove matchboarding (15mm) with 3 coats of paint leaving a satin, off-white finish which achieves a bright, clean and airy look.

Roof Coverings

The Holkham Summerhouse comes with a choice of either Cedar Shingles or Slate Effect roofing tiles in grey or terracotta.

Cedar Shingles

Cedar Shingles

We use only the finest quality Canadian Blue Label Cedar Shingles expertly tiled by our own skilled craftsmen to give a traditional finish which will 'silver' with age. They are expected to last 25-35 years and they complete the charm of your Summerhouse.

Terracotta Slate Effect Tiles : Terracotta

Slate Effect Tiles

These individually laid synthetic slates finally bring nature and technology together providing the ultimate protection against UV rays, wind, hail and fire.

Grey Slate Effect Tiles : Grey

This roofing product carries a 50 year limited warranty. Opt for a more traditional grey or terracotta for a different look which looks great with the lighter paint shades.

Paint System

Holkham Summerhouses are available in one of two paint colour ranges: Valtti or Farrow & Ball. Both of these paint ranges offer an opaque finish with a long re-decoration cycle in a wide range of natural colours that will fit perfectly into garden environments. Please see below for information on both paint ranges.


Our Valtti system is proven to be the best possible protection for exterior timber. Valtti is fully opaque and gives an exceptionally durable, extremely low maintenance, solid 4 coat finish. Our extensive colour range is inspired by nature and the soft neutral tones of traditional colonial buildings.

Ivory Ivory
Cream Cream
Sandstone Sandstone
Twine Twine
Taupe Taupe
Pebble Pebble
Ash Ash
Saltwater Saltwater
Sundrenched Sundrenched
Verdigris Verdigris
Sage Sage
Lizard Lizard
Lichen Lichen
Slate Slate
Black Black

*Screen colours differs on all screens, please request a sample to confirm your colour selection.

View More About Valtti Paint Range

Farrow & Ball

Crane Garden Buildings have collaborated with Farrow & Ball to offer you our buildings in a specially selected range of their exterior paint colours. Farrow & Ball exterior eggshell paint has a mid-sheen finish, suitable for use on our garden buildings.

After spending many years developing the paint, they have created a highly durable product that is flexible and highly resistant to flaking, peeling, and colour fade, as well as being both fungal and water resistant.

Wimborne White Wimborne White
Pointing Pointing
Old White Old White
Light Gray Light Gray
Mouse's Back Mouse's Back
French Gray French Gray
Card Room Green Card Room Green
Green Smoke Green Smoke
Pigeon Pigeon
Manor House Gray Manor House Gray
Down Pipe Down Pipe
Off-Black Off-Black

*Screen colours differs on all screens, please request a sample to confirm your colour selection.

View More About Farrow & Ball Paint Range


Within our workshops, we house our own Joinery Works so we make the double doors for our Summerhouses. This ensures that the high quality that we demand is met and we can offer a bespoke service. Our doors are constructed from hemlock, which is a timber particularly suitable for doors as apart from being durable it is far less susceptible to movement and warping than other timbers traditionally used in doors. They are three quarter glazed using 4mm toughened safety glass and finished with the finest brass fittings. You can opt for Georgian style windows in the door.


We make our own windows within our Joinery Works. The windows are made up of large, square panes featuring 4mm toughened safety glass and finished with solid brass furniture. We can also offer Georgian effect as an alternative style.

The Holkham in the smaller sizes (up to 4.2 m in width), comes with 2 fixed double pane window sets. In the larger sizes (4.8m wide and over) there are 4 sets of fixed double pane windows at the front. With all Holkham Summerhouses there is an opening double pane window set on each side of the building. It is possible to add further sets if you desire.

Holkham Windows

Holkham Windows

Georgian Windows

Georgian Windows

Double Glazed Windows

Double Glazed Windows

Have your windows double glazed for added insulation and reduced condensation.

Opening Windows

Opening Windows

You can substitute any fixed window for an opening sash.

Cladding Options

Our timber cladding is machined from very high quality Redwood grown in North Sweden, close to the arctic circle. Because of the temperature, these slowly grown trees produce a much more dense and stable timber than others. The timber mill we partner and have very close links to is also FSC® certified like ourselves. Choose between:

Shiplap - (ex 19 x 125mm)

Shiplap - (ex 19 x 125mm)

Shiplap gives a planed, smooth surface finish which looks great painted. We machine our shiplap in to particularly thick boards and because it's a slowly grown timber with an exceptionally close grain the additional benefits of our shiplap are its strength and durability.

Weatherboard - (21>8 x 125mm)

Weatherboard - (21>8 x 125mm)

Our weatherboard cladding is machined from the same high quality timber as the shiplap but is left sawn which gives a more rustic look to your building.

Floor Options

Our standard and robust floorboards are set on closely spaced tanalised floor joists. We can offer heavy duty flooring or should you be spending long periods of time in your building then we would advise on our underfloor insulation.

Floor Options

Standard ex 19mm thick.

Heavy Duty ex 38mm thick.

Electric Packs

For lighting and using any equipment in your building, you may wish to consider our electric pack. Professionally fitted by qualified electricians who take all the wiring to a consumer unit ready for you to connect to your electricity supply. Internal wiring will be fitted behind internal lining. We can also supply your building with a heater.


4 double 13 amp switched MK sockets


A gang light switch

outside socket

A waterproof double external 13 amp socket - MK

consumer unit

An 8 way consumer unit, main switch takes 2 slots – 63 amp MCB – 16 amp and 6 amp blanks


Thermostatic 2kva wall heater (optional)


A 3 spot chrome light fitting

Flourescent Light

or a fluorescent single fitting


Guttering collects the water run-off from the roof and then deposits the water away from the building. This stops the bottom boards rotting prematurely, adding an even longer life to your building. Guttering is available in black or white.

Guttering Guttering

We add the guttering and a downpipe along both eaves of the roof. The addition of guttering allows you to install a water butt.


All our buildings require a level solid base of the correct size. We offer a base service.

The single most important part of installing a garden building is the base. Bases must be:

  • of the correct size
  • square i.e. have right angled corners

If the base is undertaken by someone who does not know what they are doing the base is likely to be uneven and therefore will create a lot of problems for your building in the short term and long term. The door will start to become unaligned and not shut properly and possibly create other movements within the building structure. The base supports the building and creates distance between your building and surface water.

We strongly recommend a solid concrete base (which will include steel reinforcement within the mix), no less than 100mm deep is ideal.

The base should always be a minimum of 50mm out of the ground to prevent surface water or puddles affecting your building i.e. rotting it.

The size of the base needs to be the metric size of your building. For example, if you order a 8 x 10 building, the metric size is 2.4 x 3.0 metres and this should be the size of the base. If the base is not built to the metric size then you will see the base around the building which is unsightly.

Bases for larger buildings and in particular garages need to be built to exact dimensions and drawings should be obtained from us before the base is laid.

A timber beam base can be necessary in rare cases where the building is on a steep slope or to be built near trees with tree preservation orders on them.

Always get your garden building base laid by a professional. We supply a base service if you should require it.

Download Base Plans
(gable first)
Price Painted Lining
m ft
1.8 x 2.4 6 x 8 £9,505 £740
2.4 x 2.4 8 x 8 £10,890 £690
2.4 x 3.0 8 x 10 £11,920 £815
2.4 x 3.6 8 x 12 £14,010 £1,025
2.4 x 4.2 8 x 14 £15,155 £1,085
2.4 x 4.8 8 x 16 £16,310 £1,140
2.4 x 5.4 8 x 18 £19,315 £1,200
2.4 x 6.0 8 x 20 £20,945 £1,265
3.0 x 3.0 10 x 10 £14,010 £915
3.0 x 3.6 10 x 12 £15,630 £970
3.0 x 4.2 10 x 14 £16,520 £1,030
3.0 x 4.8 10 x 16 £17,790 £1,090
3.0 x 5.4 10 x 18 £19,570 £1,145
3.0 x 6.0 10 x 20 £22,365 £1,200
3.6 x 3.6 12 x 12 £19,445 £1,030
3.6 x 4.2 12 x 14 £21,180 £1,045
3.6 x 4.8 12 x 16 £22,350 £1,155
3.6 x 5.4 12 x 18 £24,935 £1,375
3.6 x 6.0 12 x 20 £26,810 £1,400
4.2 x 4.2 14 x 14 £26,810 £1,375
4.2 x 4.8 14 x 16 £25,580 £1,400
4.2 x 5.4 14 x 18 £27,680 £1,455
4.2 x 6.0 14 x 20 £29,730 £1,465
4.8 x 4.8 16 x 16 £28,525 £1,455
4.8 x 5.4 16 x 18 £30,880 £1,490
4.8 x 6.0 16 x 20 £33,175 £1,550
5.4 x 5.4 18 x 18 £34,005 £1,580

All of our garden buildings come with a range of optional extras, and to explore these fully, please use our pricebuilder tool by clicking on the banner below. The tool will take you through the options for this building; however, if you have any further requests, please don't hesitate to call us on 01760 444229, request a callback or contact us to discuss a bespoke made building with our helpful team.


We constantly strive to ensure all our materials and techniques are the best that we can source and provide. We lead the market in producing exceptional quality timber buildings. Couple this with our personal and bespoke service and you will be totally delighted with your building.

Side Walls ex 19 x 125mm shiplap or weatherboard cladding on ex 38 x 75mm planed framing, all using high grade Scandinavian redwood. The walls are lined with a breathable paper membrane and insulated before being internally clad with ex 19mm vertical tongue and groove matchboarding with a choice of a painted or a natural finish.
Door 1 pair of joinery-made double doors 1830mm wide x 1100mm wide, 3/4 glazed with 4mm leaded, toughened safety glass, fitted with a mortise lock and solid brass fittings.
Door Frame ex 75 x 75mm planed.
Windows 4 sets of windows fitted with 4 mm leaded, toughened safety glass. 2 sets that are on the front are fixed (single pane up to 3.0m wide and double pane from 3.6m wide) and 2 sets are double, opening windows on the sides. With joinery made frames and finished in solid brass furniture.
Floor ex 19 x 125mm tongue and groove floorboards on ex 38 x 75mm tanalised, planed floor joists set at no less than 450mm centres.
Roof ex 19 x 125mm tongue and groove matchboarding on solid timber rafters, fully insulated and finished in Cedar Shingles or Slate effect tiles.
Height 2.0m to eave height.

Delivery and Installation

Our experienced and professional fitting team deliver and install all our buildings to anywhere on the UK mainland free of charge.

As our business is very much dependant on our reputation in providing an excellent product and service, our customer care is exceedingly important to us and you will find that we very much pride ourselves on this. From the design stage, right through to installation, providing the best possible service is our number one priority.

Superior Shed Delivery and Installation

Each building we make is designed and built to order, which means that we can make the building in such a way that it will fit through restricted access areas and be installed exactly where the building is required; however, if you have any concerns about the access to your garden, please contact us and we will be able to advise you.

Please also note that our installation team requires a flat, solid and level base to install your building on. If you have any questions about this at all, we will be more than happy to help if you call us on 01760 444229.

Use Our Online Tool To Create Your Own Garden Building

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