The very impressive grand retreat is both strong and luxurious creating  a magnificent extra large room in the garden  georgian double doors and georgian style opening windows

Image shown is the 20x10 model in 44mm logs

Other sizes available"-

16x10

18x10

16x12

18x12

20x12

18x14

20x14

18x16

20x16

Options toughened glass and double glazing and roof shingles as extras