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Project Timber Limited is a company registered in England and Wales with registration number 05126131. Our registered office is at Parry Works, Grassthorpe Road, Sutton-on-Trent, Newark NG23 6QX.

Insulated Garden Buildings

Create your own comfortable garden retreat, garden office, or a...

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Shop by Range.

Our Favourite Garden Room

Evolution Range

A premium garden room with composite cladding, fully insulated and in a wide range of sizes.

Relax in Comfort

Cannes Range

Our most popular summerhouse with insulated walls, roof and floor.

Work From Home Office

My Den Range

A fully insulated garden office that is compact and easy to install with uPVC double doors.

Our Favourite Garden Room

Evolution Range

A premium garden room with composite cladding, fully insulated and in a wide range of sizes.

Relax in Comfort

Cannes Range

Our most popular summerhouse with insulated walls, roof and floor.

Work From Home Office

My Den Range

A fully insulated garden office that is compact and easy to install with uPVC double doors.

Showing all 12 results

  • My Den Insulated Garden Office

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    From £8295

    FREE delivery from

    Oct, 21st Tue*
    in-stock-status-icon In Stock

    Sizes

    8 x 6 10 x 6 8 x 8 10 x 8
  • Evolution Insulated Garden Room – Composite

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    From £9995

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    8 x 8 10 x 8 12 x 8 14 x 8 16 x 8 18 x 8 20 x 8 10 x 10 12 x 10 14 x 10 16 x 10 18 x 10 20 x 10 10 x 12 12 x 12 14 x 12 16 x 12 18 x 12 20 x 12 22 x 12 24 x 12
  • Evolution Insulated Garden Room – Offset Door – Composite

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    From £16572

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    14 x 8 16 x 8 18 x 8 20 x 8 14 x 10 16 x 10 18 x 10 20 x 10 14 x 12 16 x 12 18 x 12 20 x 12
  • Hobbyist Cannes Plus H100 Insulated Summerhouse – Insulated Tongue and Groove

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    From £5095

    FREE delivery from

    Oct, 27th Mon*
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    Sizes

    8 x 6 10 x 6 12 x 6 8 x 8 10 x 8 12 x 8
  • My Den Double Door Insulated Garden Office

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    From £13629

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    12 x 8 14 x 8 16 x 8
  • My Den Insulated Garden Pod – Pressure Treated

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    From £7095

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    8 x 6 10 x 6 8 x 8 10 x 8
  • Pressure Treated Evolution Insulated Garden Room

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    From £10134

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    8 x 8 10 x 8 12 x 8 14 x 8 16 x 8 18 x 8 20 x 8 10 x 10 12 x 10 14 x 10 16 x 10 18 x 10 20 x 10 10 x 12 12 x 12 14 x 12 16 x 12 18 x 12 20 x 12
  • My Den Insulated Composite Garden Office

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    From £7825

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    8 x 6 10 x 6 8 x 8 10 x 8
  • My Den Insulated Garden Room – Cedar

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    From £18125

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    8 x 6 10 x 6 8 x 8 10 x 8
  • Evolution Large Overhang Insulated Garden Room

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    From £14623

    FREE delivery from

    Oct, 21st Tue*
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    Sizes

    10 x 10 12 x 10 14 x 10 16 x 10 18 x 10 20 x 10 10 x 12 12 x 12 14 x 12 16 x 12 18 x 12 20 x 12 10 x 14 12 x 14 14 x 14 16 x 14 18 x 14 20 x 14
  • My Den Sliding Doors

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    From £15415

    FREE delivery from

    Oct, 21st Tue*
    in-stock-status-icon In Stock

    Sizes

    12 x 8 14 x 8 16 x 8
  • Evolution Insulated Garden Room – Cedar

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    From £44044

    FREE delivery from

    Oct, 21st Tue*
    in-stock-status-icon In Stock

    Sizes

    16 x 8 18 x 8 20 x 8 16 x 10 18 x 10 20 x 10 22 x 10 24 x 10 26 x 10 28 x 10 30 x 10 16 x 12 18 x 12 20 x 12 22 x 12 24 x 12 26 x 12 28 x 12 30 x 12