Step Two
As per the drawing below lay two sheets of 7/16th OSB on the ground and lay out the ends of the loft for cutting. The two triangle pieces from the top of the sides can be discarded as they are scrap. You need to cut two end pieces and two aviary side pieces. The two aviary side pieces can be cut from one sheet of OSB so you will need a total of three pieces of 7/16th OSB for this step. Next take two more pieces of 7/16th OSB and cut them 82" long. leave them a full 48" wide. These two pieces will be for the back of the loft. You are going to need one more additional piece of 7/16th OSB for the front of the loft for a total of 6 sheets of 7/16th OSB.

Now is a good time to cut you door out. Decide which end you want your door and cut it out as below. Do not cut it completely out as you still need it attached to add strength to the end when you attach it to the floor. Once this end is attached to the floor and back you can install your hinges and finish cutting out the door.
