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18ft Wide Summerhouses


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Malvern Studio Pent

A modern light and spacious garden room. Featuring stylish, glass to ground double glazed windows as standard, making it ideal for use as a summerhouse or garden office.

  • 16 sizes available
  • Summerhouse or garden office
  • Double glazed windows and doors
  • Optional painted finish

Prices from 2,533

Prices from 2,533

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Malvern Arley Pent

A hybrid of summerhouse and office, the Arley Pent includes double glazed windows as standard and can be fitted with fully insulated walls and ceiling. Available in 11 sizes from 8ft x 6ft to 20ft x 10ft.

  • 11 sizes available
  • Summerhouse or garden office
  • Double glazed windows and doors
  • Optional painted finish

Prices from 2,091

Prices from 2,091

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Malvern Ashton

A traditionally designed English summerhouse available in a range of sizes. The Ashton summerhouse includes a Cedar shingle roof, double locking doors, two fixed windows and four opening windows.

  • 12 sizes available
  • Western Red Cedar
  • Delivery and installation included
  • Choice of optional colour finishes

Prices from 5,552

Prices from 5,552

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Malvern Astwood

This striking summerhouse is supplied with double locking doors, clear single glazing and toughened safety glass. A choice of optional colour finishes are also available.

  • 14 sizes available
  • Wester Red Cedar
  • Delivery and installation included
  • Choice of optional colour finishes

Prices from 3,936

Prices from 3,936

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Malvern Arley Pavilion

The Arley Pavilion combines both summerhouse and office. The optional insulation allows you to use your buildings all year round. The Arley Pavilion is available in 20 sizes and three timber choices.

  • 20 sizes available
  • Double glazed windows and doors
  • Summerhouse or garden office
  • Optional paint finish

Prices from 2,091

Prices from 2,091

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Malvern Arley Pavilion High

The Arley Pavilion High is an adaptation of our popular Arley Pavilion, with extra height!The optional insulation allows you to use your building all year round. The Arley Pavilion High is available in 15 sizes and three timber choices.

  • 15 sizes available
  • Extra-height version
  • Double glazed windows and doors
  • Optional paint finish

Prices from 3,011

Prices from 3,011

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Malvern Studio Pavilion

A light and spacious garden room that can be used as either a summerhouse or a garden office. The glass to ground double glazed windows run across the front aspect with double doors and an opening window in either end.

  • 20 sizes available
  • Summerhouse or garden office
  • Double glazed windows and doors
  • Optional painted finish

Prices from 2,533

Prices from 2,533

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Nordic Cheshire Orangerie

A large double glazed and insulated PVC-u summerhouse - ideal for use all year round. Available in four sizes from 16ft wide to 22ft wide and in a choice of 6 colours.

  • Full length glazing
  • Double glazed
  • PVC-u construction
  • 6 colour choices

Prices from 9,005

Prices from 9,005

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18ft Wide Summer Houses

The garden buildings above are available in an 18ft width. Most of the garden summerhouses we supply are available in a choice of size to ensure that we have something to fit into any garden. GBC Group specialise in the supply, delivery and installation of garden summerhouses - with garden rooms from 6ft wide x 6ft deep. Our 18ft wide summerhouse range features the Malvern Cottage range of summerhouses.

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