On 23/06/2013 09:28, Howzit_China wrote:
Here's a quick drawing with the back adjusted to 2m.

The reason for the elaborate roof on my original drawing was to get
around what is happening in this drawing, which is that the roof angles
of the sides are different due to the different side widths so the
polycarbonate will need to twist slightly to fit the frame, but maybe
this will not be a problem.

Is polycarbonate strong enough that I could use one sheet for the entire
roof and one for the front without any supports in the middle?


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OK lets throw a curved Ball
Why put a door at an end, why not have the front as 2 or 3 removable
panels, that way you wont be trying to put a path down the length and
will have more growing area.