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01636 370600
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Free delivery
on selected postcodes
0% interest finance
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.

Showing all 10 results

  • 20ft x 10ft diplomat long window grandmaster summerhouse shed

    Diplomat Grandmaster Long Window Summerhouse

    From £38.69 12.9% per month
    Total£1,393
    Sizes
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 10 to 24 x 12
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Diplomat Offset Grandmaster Summerhouse

    Diplomat Offset Grandmaster Summerhouse

    From £52.92 12.9% per month
    Total£1,905
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Diplomat Grandmaster Summerhouse

    Diplomat Grandmaster Summerhouse

    From £52.64 12.9% per month
    Total£1,895
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    8 x 14
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Diplomat Grandmaster Summerhouse With Dorma

    Diplomat Grandmaster Summerhouse With Dorma

    From £82.22 12.9% per month
    Total£2,960
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    8 x 14
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Grandmaster Duke Summerhouse TG Roof and Floor

    Duke Grandmaster Summerhouse

    From £52.19 12.9% per month
    Total£1,879
    Sizes
    8 x 8
    10 x 8
    12 x 8
    16 x 8
    20 x 8
    8 x 10
    10 x 10
    12 x 10
    16 x 10
    20 x 10
    12 x 12
    16 x 12
    20 x 12
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 20 x 12
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Pressure Treated Diplomat Offset Grandmaster Summerhouse

    Pressure Treated Diplomat Offset Grandmaster Summerhouse

    From £33.61 12.9% per month
    Total£1,210
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    15 year anti rot guarantee
    Fully opening windows
    View Product
  • Pressure Treated Diplomat Grandmaster Summerhouse

    Pressure Treated Diplomat Grandmaster Summerhouse

    From £38.50 12.9% per month
    Total£1,386
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    8 x 14
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    15 year anti rot guarantee
    Fully opening windows
    View Product
  • Pressure Treated Diplomat Grandmaster Summerhouse With Dorma

    Pressure Treated Diplomat Grandmaster Summerhouse With Dorma

    From £44.78 12.9% per month
    Total£1,612
    Sizes
    8 x 8
    10 x 8
    12 x 8
    14 x 8
    16 x 8
    18 x 8
    20 x 8
    22 x 8
    24 x 8
    8 x 10
    10 x 10
    12 x 10
    14 x 10
    16 x 10
    18 x 10
    20 x 10
    22 x 10
    24 x 10
    8 x 12
    10 x 12
    12 x 12
    14 x 12
    16 x 12
    18 x 12
    20 x 12
    22 x 12
    24 x 12
    8 x 14
    10 x 14
    12 x 14
    14 x 14
    16 x 14
    18 x 14
    20 x 14
    22 x 14
    24 x 14
    Show More Sizes
    Free delivery from Friday 28 September*
    From 8 x 8 to 24 x 14
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    View Product
  • Pressure Treated Duke Grandmaster Summerhouse

    Pressure Treated Duke Grandmaster Summerhouse

    From £44.69 12.9% per month
    Total£1,609
    Sizes
    10 x 8
    12 x 8
    16 x 8
    8 x 10
    10 x 10
    12 x 10
    16 x 10
    20 x 10
    12 x 12
    16 x 12
    20 x 12
    Show More Sizes
    Free delivery from Friday 28 September*
    From 10 x 8 to 20 x 12
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    15 year anti rot guarantee
    Fully opening windows
    View Product
  • diplomat-new day scene-a

    Diplomat Grandmaster Insulated Garden Room

    From £156.78 12.9% per month
    Total£5,644
    Sizes
    12 x 8
    16 x 8
    20 x 8
    12 x 10
    16 x 10
    20 x 10
    12 x 12
    16 x 12
    20 x 12
    Show More Sizes
    Free delivery from Friday 28 September*
    From 12 x 8 to 20 x 12
    Mortice lock and lockable windows
    Extra tall inside
    Stronger and taller double doors
    16mm cladding upgrade
    10 year anti rot guarantee
    Fully opening windows
    Fully insulated
    View Product
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