I built a shed door last summer and have had a few problems with it since.

Using pressure treated outdoor timber I made a fairly simple shed door. I wood glued the long planks together and then used 4 straight braces across the back that I glued and screwed into the long front planks. I then painted the door with standard shed type paint (Ronseal)

All seemed fine at first until winter hit where the front planks in the middle started to come away from the braces, but also to push out at the top so it was deformed and the door would no longer close properly. It made quite a gap between the 2nd and 3rd long planks when it was perfectly flat together before. I would say it moves anywhere from 1/2 an inch to 2 inches!

This year it started to go back to normal and the gap disappeared but as it's got cold again recently its re-appeared again.

Is there anything I can do to fix the problem? Or should I start again with a new door  ? What can I do in the future to avoid this issue  ?

Many thanks.

I built a shed door last summer and have had a few problems with it since.

Using pressure treated outdoor timber I made a fairly simple shed door. I wood glued the long planks together and then used four straight braces across the back that I glued and screwed into the long front planks. I then painted the door with standard shed type paint (Ronseal)

All seemed fine at first until winter hit where the front planks in the middle started to come away from the braces, but also to push out at the top so it was deformed and the door would no longer close properly. It made quite a gap between the second and third long planks when it was perfectly flat together before. I would say it moves anywhere from 1/2 an inch to 2 inches (1 to 5 cm)!

This year it started to go back to normal and the gap disappeared, but as it's got cold again recently it's re-appeared again.

Is there anything I can do to fix the problem? Or should I start again with a new door? What can I do in the future to avoid this issue?