Sales Lines Open 8:30 am - 7:00 pm
0

0 item(s) worth £0.00

New: Visit our Indoor Show Site

7 x 7 | Installation Included | Free UK Delivery

Shop by Size / Type / Brand

PRODUCT DETAIL MORE INFO INSTALLED 7ft x 7ft Pressure Treated Overlap Apex Wooden Garden Shed With Double Doors (2.2m x 2.1m) - INCLUDES INSTALLATION
INSTALLED 7ft x 7ft Pressure Treated Overlap Apex Wooden Garden Shed With Double Doors (2.2m x 2.1m) - INCLUDES INSTALLATION in stock
In Stock
INSTALLED 7ft x 7ft Pressure Treated Overlap Apex Wooden Garden Shed With Double Doors (2.2m x 2.1m) - INCLUDES INSTALLATION has Free delivery

Stoke: INSTALLED 7ft x 7ft Pressure Treated Overlap Apex Wooden Garden Shed With Double Doors (2.2m x 2.1m) - INCLUDES INSTALLATION

Now Only: £677.00
PRODUCT DETAIL MORE INFO INSTALLED 7ft x 7ft Pressure Treated Overlap Corner Shed (2.9m x 2.3m)
INSTALLED 7ft x 7ft Pressure Treated Overlap Corner Shed (2.9m x 2.3m) in stock
In Stock
INSTALLED 7ft x 7ft Pressure Treated Overlap Corner Shed (2.9m x 2.3m) has Free delivery

Stoke: INSTALLED 7ft x 7ft Pressure Treated Overlap Corner Shed (2.9m x 2.3m)

Now Only: £791.00
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (1.98m x 2.04m) Pressure Treated Overlap - Apex Wooden Garden Shed - 1 Opening Window - Double Doors - 10mm Solid OSB Floor
INSTALLED 7 x 7 (1.98m x 2.04m) Pressure Treated Overlap - Apex Wooden Garden Shed - 1 Opening Window - Double Doors - 10mm Solid OSB Floor in stock
In Stock
INSTALLED 7 x 7 (1.98m x 2.04m) Pressure Treated Overlap - Apex Wooden Garden Shed - 1 Opening Window - Double Doors - 10mm Solid OSB Floor has Free delivery

Eaton Installed: INSTALLED 7 x 7 (1.98m x 2.04m) Pressure Treated Overlap - Apex Wooden Garden Shed - 1 Opening Window - Double Doors - 10mm Solid OSB Floor

Now Only: £805.20
PRODUCT DETAIL MORE INFO 7 X 7 Oakley Pressure Treated Overlap Summerhouse - Assembled (219cm X 207cm)
7 X 7 Oakley Pressure Treated Overlap Summerhouse - Assembled (219cm X 207cm) in stock
In Stock
7 X 7 Oakley Pressure Treated Overlap Summerhouse - Assembled (219cm X 207cm) has Free delivery

Stoke Summerhouses: 7 X 7 Oakley Pressure Treated Overlap Summerhouse - Assembled (219cm X 207cm)

Now Only: £957.00
PRODUCT DETAIL MORE INFO INSTALLED Oakley Overlap 7ft x 7ft Corner Summerhouse (2.96m x 2.30m)
INSTALLED Oakley Overlap 7ft x 7ft Corner Summerhouse (2.96m x 2.30m) in stock
In Stock
INSTALLED Oakley Overlap 7ft x 7ft Corner Summerhouse (2.96m x 2.30m) has Free delivery

Stoke Summerhouses: INSTALLED Oakley Overlap 7ft x 7ft Corner Summerhouse (2.96m x 2.30m)

Now Only: £1,021.00
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height 3 Windows And Single Door
INSTALLED 7 x 6 Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height 3 Windows And Single Door in stock
In Stock
INSTALLED 7 x 6 Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height 3 Windows And Single Door has Free delivery

Oundle Installed: INSTALLED 7 x 6 Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height 3 Windows And Single Door

Now Only: £1,052.02
PRODUCT DETAIL MORE INFO INSTALLED - 7 x 7 ( 2.61 x 2.05m) Wooden Parham Summerhouse - 12mm Tongue And Groove Floor And Roof
INSTALLED - 7 x 7 ( 2.61 x 2.05m) Wooden Parham Summerhouse - 12mm Tongue And Groove Floor And Roof in stock
In Stock
INSTALLED - 7 x 7 ( 2.61 x 2.05m) Wooden Parham Summerhouse - 12mm Tongue And Groove Floor And Roof has Free delivery

Eaton Installed: INSTALLED - 7 x 7 ( 2.61 x 2.05m) Wooden Parham Summerhouse - 12mm Tongue And Groove Floor And Roof

Now Only: £1,097.25
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (2.69m x 2.05m) - Corner Wooden Summerhouse - Double Doors - 12mm Tongue And Groove Floor - INCLUDES INSTALLATION
INSTALLED 7 x 7 (2.69m x 2.05m) - Corner Wooden Summerhouse - Double Doors - 12mm Tongue And Groove Floor - INCLUDES INSTALLATION in stock
In Stock
INSTALLED 7 x 7 (2.69m x 2.05m) - Corner Wooden Summerhouse - Double Doors - 12mm Tongue And Groove Floor - INCLUDES INSTALLATION has Free delivery

Eaton Installed: INSTALLED 7 x 7 (2.69m x 2.05m) - Corner Wooden Summerhouse - Double Doors - 12mm Tongue And Groove Floor - INCLUDES INSTALLATION

Now Only: £1,102.20
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)
INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)

Now Only: £1,143.08
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door)
INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door)

Now Only: £1,143.08
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Side Door (please Select Left Or Right Door)
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Side Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Side Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Side Door (please Select Left Or Right Door)

Now Only: £1,160.21
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door)
INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 7 x 6 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door)

Now Only: £1,168.77
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door)
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Single Door (please Select Left Or Right Door)

Now Only: £1,177.33
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)
INSTALLED 7 x 6 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 7 x 6 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 7 x 6 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)

Now Only: £1,177.33
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)
INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)

Now Only: £1,177.33
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)
INSTALLED 7 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 7 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)

Now Only: £1,194.44
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)
INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) in stock
In Stock
INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) has Free delivery

Oundle Installed: INSTALLED 7 x 6 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)

Now Only: £1,196.14
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) in stock
In Stock
INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)

Now Only: £1,211.56
PRODUCT DETAIL MORE INFO INSTALLED Tongue & Groove Pressure Treated 7ft x 7ft Corner Shed (2.96m x 2.30m)
INSTALLED Tongue & Groove Pressure Treated 7ft x 7ft Corner Shed (2.96m x 2.30m) in stock
In Stock
INSTALLED Tongue & Groove Pressure Treated 7ft x 7ft Corner Shed (2.96m x 2.30m) has Free delivery

Stoke: INSTALLED Tongue & Groove Pressure Treated 7ft x 7ft Corner Shed (2.96m x 2.30m)

Now Only: £1,213.00
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door)
INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 7 x 7 Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Side Door (please Select Left Or Right Panel For Door)

Now Only: £1,215.00
PRODUCT DETAIL MORE INFO INSTALLED 8 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)
INSTALLED 8 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) in stock
In Stock
INSTALLED 8 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door) has Free delivery

Oundle Installed: INSTALLED 8 x 7 Pressure Treated Tongue And Groove Pent Shed With 2 Windows And Single Door (please Select Left Or Right Door)

Now Only: £1,228.68
PRODUCT DETAIL MORE INFO INSTALLED 8 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)
INSTALLED 8 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 8 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 8 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)

Now Only: £1,245.80
PRODUCT DETAIL MORE INFO INSTALLED 8 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)
INSTALLED 8 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) in stock
In Stock
INSTALLED 8 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors) has Free delivery

Oundle Installed: INSTALLED 8 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors (please Select Left Or Right Doors)

Now Only: £1,262.92
PRODUCT DETAIL MORE INFO INSTALLED Arlington Premium Tongue & Groove 7ft x 7ft Corner Summerhouse (2.96m x 2.30m)
INSTALLED Arlington Premium Tongue & Groove 7ft x 7ft Corner Summerhouse (2.96m x 2.30m) in stock
In Stock
INSTALLED Arlington Premium Tongue & Groove 7ft x 7ft Corner Summerhouse (2.96m x 2.30m) has Free delivery

Stoke Summerhouses: INSTALLED Arlington Premium Tongue & Groove 7ft x 7ft Corner Summerhouse (2.96m x 2.30m)

Now Only: £1,276.00
PRODUCT DETAIL MORE INFO INSTALLED 9 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors
INSTALLED 9 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors in stock
In Stock
INSTALLED 9 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors has Free delivery

Oundle Installed: INSTALLED 9 x 7 Windowless Pressure Treated Tongue And Groove Pent Shed With Double Doors

Now Only: £1,348.53
PRODUCT DETAIL MORE INFO INSTALLED 9 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)
INSTALLED 9 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) in stock
In Stock
INSTALLED 9 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door) has Free delivery

Oundle Installed: INSTALLED 9 x 7 Reverse Pressure Treated Tongue And Groove Pent Shed With 3 Windows And Single Door (please Select Left Or Right Panel For Door)

Now Only: £1,348.53
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (2.05m x 1.98m) - Pressure Treated Wooden Summerhouse - 1 Opening Window - 12mm Tongue And Groove Floor And Roof - Apex Roof - INSTALLATION INCLUDED
INSTALLED 7 x 7 (2.05m x 1.98m) - Pressure Treated Wooden Summerhouse - 1 Opening Window - 12mm Tongue And Groove Floor And Roof - Apex Roof - INSTALLATION INCLUDED in stock
In Stock
INSTALLED 7 x 7 (2.05m x 1.98m) - Pressure Treated Wooden Summerhouse - 1 Opening Window - 12mm Tongue And Groove Floor And Roof - Apex Roof - INSTALLATION INCLUDED has Free delivery

Eaton Installed: INSTALLED 7 x 7 (2.05m x 1.98m) - Pressure Treated Wooden Summerhouse - 1 Opening Window - 12mm Tongue And Groove Floor And Roof - Apex Roof - INSTALLATION INCLUDED

Now Only: £1,092.30
PRODUCT DETAIL MORE INFO INSTALLED 7 x 6 (2.11m x 1.77m)  - Wigwam Playhouse
INSTALLED 7 x 6 (2.11m x 1.77m)  - Wigwam Playhouse in stock
In Stock
INSTALLED 7 x 6 (2.11m x 1.77m)  - Wigwam Playhouse has Free delivery

Eaton Installed: INSTALLED 7 x 6 (2.11m x 1.77m) - Wigwam Playhouse

Now Only: £750.00
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (2.05m x 1.98m)  Summerhouse - Veranda - Fully Glazed Double Doors - 12mm Tongue And Groove Floor
INSTALLED 7 x 7 (2.05m x 1.98m)  Summerhouse - Veranda - Fully Glazed Double Doors - 12mm Tongue And Groove Floor in stock
In Stock
INSTALLED 7 x 7 (2.05m x 1.98m)  Summerhouse - Veranda - Fully Glazed Double Doors - 12mm Tongue And Groove Floor has Free delivery

Eaton Installed: INSTALLED 7 x 7 (2.05m x 1.98m) Summerhouse - Veranda - Fully Glazed Double Doors - 12mm Tongue And Groove Floor

Now Only: £960.30
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (2.48m x 2.17m)  - Summerhouse - Half Glazed Double Doors -  Veranda - 12mm Tongue And Groove
INSTALLED 7 x 7 (2.48m x 2.17m)  - Summerhouse - Half Glazed Double Doors -  Veranda - 12mm Tongue And Groove in stock
In Stock
INSTALLED 7 x 7 (2.48m x 2.17m)  - Summerhouse - Half Glazed Double Doors -  Veranda - 12mm Tongue And Groove has Free delivery

Eaton Installed: INSTALLED 7 x 7 (2.48m x 2.17m) - Summerhouse - Half Glazed Double Doors - Veranda - 12mm Tongue And Groove

Now Only: £1,016.40
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (2.05m x 1.98) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor And Roof
INSTALLED 7 x 7 (2.05m x 1.98) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor And Roof in stock
In Stock
INSTALLED 7 x 7 (2.05m x 1.98) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor And Roof has Free delivery

Eaton Installed: INSTALLED 7 x 7 (2.05m x 1.98) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor And Roof

Now Only: £1,095.60
PRODUCT DETAIL MORE INFO INSTALLED 7 x 7 (1.98m x 2.05m) - Corner Summerhouse - Fully Glazed Double Doors - 12mm Tongue And Groove Floor
INSTALLED 7 x 7 (1.98m x 2.05m) - Corner Summerhouse - Fully Glazed Double Doors - 12mm Tongue And Groove Floor in stock
In Stock
INSTALLED 7 x 7 (1.98m x 2.05m) - Corner Summerhouse - Fully Glazed Double Doors - 12mm Tongue And Groove Floor has Free delivery

Eaton Installed: INSTALLED 7 x 7 (1.98m x 2.05m) - Corner Summerhouse - Fully Glazed Double Doors - 12mm Tongue And Groove Floor

Now Only: £1,143.45
PRODUCT DETAIL MORE INFO INSTALLED 6 x 7 (1.87 x 2.16m) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor
INSTALLED 6 x 7 (1.87 x 2.16m) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor in stock
In Stock
INSTALLED 6 x 7 (1.87 x 2.16m) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor has Free delivery

Eaton Installed: INSTALLED 6 x 7 (1.87 x 2.16m) - Summerhouse - Fully Glazed Single Door - 12mm Tongue And Groove Floor

Now Only: £1,041.15
PRODUCT DETAIL MORE INFO INSTALLED - 7 x 7  (2.05m x 1.98m) - Tongue And Groove - Pent Garden Shed - 1 Opening Window - Single Door - 10mm OSB Floor
INSTALLED - 7 x 7  (2.05m x 1.98m) - Tongue And Groove - Pent Garden Shed - 1 Opening Window - Single Door - 10mm OSB Floor in stock
In Stock
INSTALLED - 7 x 7  (2.05m x 1.98m) - Tongue And Groove - Pent Garden Shed - 1 Opening Window - Single Door - 10mm OSB Floor has Free delivery

Eaton Installed: INSTALLED - 7 x 7 (2.05m x 1.98m) - Tongue And Groove - Pent Garden Shed - 1 Opening Window - Single Door - 10mm OSB Floor

Now Only: £828.30

7' x 7' Installed Garden Buildings and Sheds Buy Online Today

We have a large range of Sheds that are available for installation at the cheapest possible prices.

If you cannot find what you are looking for – please call us or email us and we will do our best to help you find the perfect pressure treated shed for your garden