How can I prevent my wood shed door from leaking when it rains?

There are 3 main ways to prevent watering leaking through your wood shed door. The first method is by treating the door. A layer of polish over the wood will make the door a little more water resistant, preventing the rain soaking through the wood. The second method is extending the roof, so that the water drips off the end rather than running down over the wood shed door, alternatively add guttering so that the water will run down the pipe. The final method would be to have the bottom of the door raised from the ground, therefore standing water will not trickle in the gap between the shed and the shed door.