All Premium Hobby Gardener Greenhouse Kits comes with Twin wall light-diffusing polycarbonate panels on all sides + Roof Windows + Window Louvre + Mounting Base + Automatic Roof Vent Openers

Size: 8'6"x12'6"
Included:
Double entry doors
Two Roof Windows
Two Automatic Roof Windows Openers
One Window Louvre
12' Mounting Base

Size: 8'6"x16'6"
Included:
Double entry doors
3 Roof Windows
3 Automatic Roof Windows Openers
One Window Louvre
16' Mounting Base

Size: 8'6"x20'6"
Included:
Double entry doors
4 Roof Windows
4 Automatic Roof Windows Openers
One Window Louvre
20' Mounting Base

Size: 8'6"x24'6"
Included:
Double entry doors
5 Roof Windows
5 Automatic Roof Windows Openers
One Window Louvre
24' Mounting Base

Size: 8'6"x28'6"
Included:
Double entry doors
6 Roof Windows
6 Automatic Roof Windows Openers
One Window Louvre
28' Mounting Base