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50 years experience
Manufactured in Great Britain
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20 x 10 Summerhouses

Summer houses come in a variety of shapes and sizes, suitable for all types of garden designs and of course shapes and sizes. Here at Project Timber, we recognise the need for variety only too well which is why we offer summer houses in a variety of options. From our more modest 10 x 6 summer house to our much larger 20 x 10 summer house. Our 20 x 10 summer house is perfect for providing a great amount of seating for larger families (and friends for that matter) which is no doubt why it’s become so popular. Made from using only the finest materials and assembled by our professional team should you wish, buying a larger than average summer house has never been easier.

What’s more, with Project Timber, you can guarantee quality all the way with our 10 year anti-rot guarantee as well as our 30 day returns policy. For more information on our 20 x 10 summer house and how you can get your hands on one, simply contact us today.

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  • The Project Timber Evolution Insulated Garden Room

    From £73.06 / month
    From Total£3,191
    Now Only £2872

    New Year Promo

    Was £3191

    Now Only
    £2872
    Save £319

    10% Off
    WITH CODE NEWYEAR10
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    20 x 10
    8 x 6
    10 x 6
    12 x 6
    8 x 8
    Free delivery from Fri 8 Feb*
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  • Club House Garden Room

    From £41.44 / month
    From Total£1,810
    Now Only £1629

    New Year Promo

    Was £1810

    Now Only
    £1629
    Save £181

    10% Off
    WITH CODE NEWYEAR10
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    20 x 10
    8 x 10
    12 x 10
    16 x 10
    24 x 10
    Free delivery from Fri 8 Feb*
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  • The Project Timber Evolution Insulated Garden Room with Partition Wall

    From £89.09 / month
    From Total£3,891
    Now Only £3502

    New Year Promo

    Was £3891

    Now Only
    £3502
    Save £389

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    Free delivery from Fri 8 Feb*
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  • The Project Timber Evolution Offset Door Insulated Garden Room

    From £90.12 / month
    From Total£3,936
    Now Only £3542

    New Year Promo

    Was £3936

    Now Only
    £3542
    Save £394

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    Free delivery from Fri 8 Feb*
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  • Diplomat Grandmaster Long Window Summerhouse

    From £44.67 / month
    From Total£1,951
    Now Only £1756

    New Year Promo

    Was £1951

    Now Only
    £1756
    Save £195

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
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  • Diplomat Offset Grandmaster Summerhouse

    From £43.62 / month
    From Total£1,905
    Now Only £1715

    New Year Promo

    Was £1905

    Now Only
    £1715
    Save £191

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
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  • Diplomat Grandmaster Summerhouse

    From £43.39 / month
    From Total£1,895
    Now Only £1706

    New Year Promo

    Was £1895

    Now Only
    £1706
    Save £190

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
    View Product

  • Grandmaster Clockhouse Garden Room

    From £67.77 / month
    From Total£2,960
    Now Only £2664

    New Year Promo

    Was £2960

    Now Only
    £2664
    Save £296

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
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  • Duke Grandmaster Summerhouse

    From £43.02 / month
    From Total£1,879
    Now Only £1691

    New Year Promo

    Was £1879

    Now Only
    £1691
    Save £188

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    Free delivery from Fri 8 Feb*
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  • Pressure Treated Diplomat Offset Grandmaster Summerhouse

    From £27.70 / month
    From Total£1,210
    Now Only £1089

    New Year Promo

    Was £1210

    Now Only
    £1089
    Save £121

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
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  • Pressure Treated Diplomat Grandmaster Summerhouse

    From £31.73 / month
    From Total£1,386
    Now Only £1247

    New Year Promo

    Was £1386

    Now Only
    £1247
    Save £139

    10% Off
    WITH CODE NEWYEAR10
    Sizes
    Show All Sizes
    20 x 10
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    Free delivery from Fri 8 Feb*
    View Product

  • Pressure Treated Grandmaster Clockhouse Garden Room

    From £36.91 / month
    From Total£1,612
    Now Only £1451

    New Year Promo

    Was £1612

    Now Only
    £1451
    Save £161

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Fri 8 Feb*
    View Product

  • Pressure Treated Duke Grandmaster Summerhouse

    From £36.84 / month
    From Total£1,609
    Now Only £1448

    New Year Promo

    Was £1609

    Now Only
    £1448
    Save £161

    10% Off
    WITH CODE NEWYEAR10
    Sizes
    Show All Sizes
    20 x 10
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    Free delivery from Fri 8 Feb*
    View Product

  • Pressure Treated Grandmaster Fusion With Partition Wall

    From £117.16 / month
    From Total£5,117
    Now Only £4605

    New Year Promo

    Was £5117

    Now Only
    £4605
    Save £512

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    14 x 10
    16 x 10
    18 x 10
    22 x 10
    Free delivery from Fri 8 Feb*
    View Product

  • Diplomat Grandmaster Insulated Garden Room

    From £129.22 / month
    From Total£5,644
    Now Only £5080

    New Year Promo

    Was £5644

    Now Only
    £5080
    Save £564

    10% Off
    WITH CODE NEWYEAR10
    Sizes
    Show All Sizes
    20 x 10
    12 x 8
    16 x 8
    20 x 8
    12 x 10
    Free delivery from Tue 5 Feb*
    View Product

  • Pressure Treated Club House Garden Room

    From £25.19 / month
    From Total£1,100
    Now Only £990

    New Year Promo

    Was £1100

    Now Only
    £990
    Save £110

    10% Off
    WITH CODE NEWYEAR10
    Sizes
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    20 x 10
    8 x 10
    12 x 10
    16 x 10
    24 x 10
    Free delivery from Fri 8 Feb*
    View Product
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