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50 years experience
Manufactured in Great Britain
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12 x 12 Summerhouses

Here at Project Timber, we pride ourselves on offering a wide range of wooden garden buildings from traditional garden sheds to our fantastic range of contemporary summer houses. If you’re on the lookout for a summer house, our 12×12 summer house could be just what you need. Made from the very finest materials, using only the best craftsmanship, our summer houses are guaranteed to withstand the elements throughout the year, leaving you with a quality summer house to enjoy at any time. All of our summer houses come with a 10 year anti-rot guarantee which means you can count on Project Timber for the best garden investment you’ll ever make.

With 50 years within the industry, we know garden buildings and we know exactly what our clients want which is why we also provide a 30 day returns policy as well as a professional assembly service to boot. Want to find out more? Then simply contact us today.

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  • Project Timber Evolution Long Window Pent Garden Room

    From £119.36 / month
    From£5,213
    Sizes
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    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    Free delivery from Wed 26 Jun*
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  • The Project Timber Evolution Insulated Garden Room

    From £68.66 / month
    From£2,999
    Sizes
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    12 x 12
    16 x 10
    8 x 6
    10 x 6
    12 x 6
    Free delivery from Wed 26 Jun*
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  • The Project Timber Evolution Insulated Garden Room with Partition Wall

    From £88.72 / month
    From£3,875
    Sizes
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    12 x 12
    16 x 10
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Wed 26 Jun*
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  • Pressure Treated Diplomat Grandmaster Long Window Summerhouse

    From £47.97 / month
    From£2,095
    Sizes
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    12 x 12
    16 x 10
    8 x 10
    10 x 10
    12 x 10
    Free delivery from Wed 26 Jun*
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  • Pressure Treated Diplomat Grandmaster Summerhouse

    From £25.46 / month
    From£1,112
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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  • Pressure Treated Diplomat Offset Grandmaster Summerhouse

    From £25.46 / month
    From£1,112
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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  • Pressure Treated Grandmaster Clockhouse Garden Room

    From £25.46 / month
    From£1,112
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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  • Pressure Treated Duke Grandmaster Summerhouse

    From £50.26 / month
    From£2,195
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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  • Diplomat Grandmaster Insulated Garden Room

    From £73.22 / month
    From£3,198
    Sizes
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    12 x 12
    16 x 10
    12 x 8
    16 x 8
    20 x 8
    Free delivery from Tue 9 Jul*
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  • Diplomat Grandmaster Summerhouse

    From £22.87 / month
    From£999
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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  • Diplomat Offset Grandmaster Summerhouse

    From £22.90 / month
    From£1,000
    Sizes
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    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
    View Product

  • Grandmaster Clockhouse Garden Room

    From £22.87 / month
    From£999
    Sizes
    Show All Sizes
    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
    View Product

  • Duke Grandmaster Summerhouse

    From £22.90 / month
    From£1,000
    Sizes
    Show All Sizes
    12 x 12
    16 x 10
    8 x 8
    10 x 8
    12 x 8
    Free delivery from Wed 26 Jun*
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