Measure 1-inch increments along one 4-foot side of a 4-by-8-foot plywood sheet and mark them with dots. Repeat the process on the opposite 4-foot side. Draw straight lines with a yardstick and a marker parallel to the 8-foot sides of the plywood sheet to connect opposite dots.Cut across the first two straight lines on the left of the sheet — as you look it from above — with a handsaw, to give you two 1-inch-by-8-foot pieces.
Lay two 4-by-8-foot plywood sheets on the ground. The sheets must be directly next to each other, effectively forming an 8-by-8-foot square. The two 8-foot sides of the square, which are formed by two adjacent 4-foot sides of the rectangles, will be referred to simply as “sides” from now on.
Place the 1-inch-by-8-foot pieces over the “sides” of the square. Nail the pieces on the square with 1 3/4-inch nails, to form the pigeon loft’s back wall.
Place a 4-by-8-foot plywood sheet directly next to a side of the 8-by-8-foot square. Hold the plywood sheet upright — standing on its 8-foot side — and nail it on the square. Repeat the step with another 4-by-8-foot plywood sheet on the opposite side of the square, to form the pigeon loft’s side walls.
Place the last untouched 4-by-8-foot plywood sheet over an edge of the 8-by-8-foot square and between the side walls. Nail the sheet both on the square and the side walls to complete the loft’s roof.
Lift the pigeon loft. Cut out two more 1-inch-by-8-foot pieces from the initial plywood sheet, along with two 1-inch-by-3 foot rectangles. Nail the rectangles together to form an open 3-by-8-foot rectangle that will serve as the door.
Place the door directly next to the left side wall. Use an electric screwdriver and pointed screws to fix two door hinges on the left side wall and the door.
Cut out another two 1-inch-by-8-foot rectangles, along with a 1-inch-by-5-foot rectangle. Nail the rectangles together to form a Π-like shape, with the 8-foot sides being parallel to each other.
Place the Π shape next to the door, so that its 5-foot side is on the ground, one 8-foot side is directly next to the door and the other 8-foot side is directly next to the right side wall. Nail the Π shape in place. Screw a door fastener device on the door’s right side and its adjacent 8-foot side of the Π shape.
Cover the front of the pigeon loft — including the door — with wire and use fencing staples to keep it in place.