The door at the end isn't the finest we've seen but it is an easier build and the shed door is quite sturdy. this plan is a good guide to building double doors that are uneven sizes. good guide if the situation calls for it. A roll up shed door can be one of the best types of doors to install on your shed. you have to be careful though to frame your shed properly to accept this type of shed door. here's more info on adding a roll up shed door. shed door hardware. The project features instructions for building double shed doors for the 12