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50 years experience
Manufactured in Great Britain
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18 x 10 Summerhouses

Our 18 x 10 summer houses are available in a variety of styles, with stronger and taller doors along with fully opening windows. These allow for a truly light and airy feel when in them. Whether you plan to use it for seating or the ultimate bar area in your garden, the choice is yours but one thing’s for certain and that’s when you buy from Project Timber, you can ensure quality every step of the way.

What’s more, we make it more affordable than ever with our 0% finance options, which means you get to enjoy your summer house without being out of pocket. If you’d like more information on our amazing 18 x 10 summer houses or even our professional assembly service that’s now available, simply contact us today. We’ll be only too happy to offer any help and advice you may need and set you on track to having the summer house of your dreams.

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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
    Sizes
    Show All Sizes
    18 x 10
    8 x 6
    10 x 6
    12 x 6
    8 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • Lounge Contemporary Garden Room

    From £21.52 / month
    From Total£940
    Now Only £846

    New Year Promo

    Was £940

    Now Only
    £846
    Save £94

    10% Off
    WITH CODE NEWYEAR10
    Sizes
    Show All Sizes
    18 x 10
    10 x 10
    14 x 10
    22 x 10
    24 x 10
    Free delivery from Tue 12 Feb*
    View Product

  • 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
    Show All Sizes
    18 x 10
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • The Project Timber Evolution Offset Door Insulated Garden Room

    From £170.76 / month
    From Total£7,458
    Now Only £6712

    New Year Promo

    Was £7458

    Now Only
    £6712
    Save £746

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

  • 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 Feb*
    View Product

  • 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
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    Free delivery from Tue 12 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
    Show All Sizes
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    Free delivery from Tue 12 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
    18 x 10
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    Free delivery from Tue 12 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
    Show All Sizes
    18 x 10
    14 x 10
    16 x 10
    20 x 10
    22 x 10
    Free delivery from Tue 12 Feb*
    View Product
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