Saw off the end of one 1-by-2 foot wood plank at a 45-degree angle. Repeat for the second 1-by-2 foot plank.
Lay one of the 1-by-2 foot planks so the trimmed end is on top and the longer side is on your right. Take one of the 6-inch by 2-foot boards and lay it on top of the plank, lining up the right side and bottom of each. The board will protrude on the left. Nail together the pieces. This is the right side of the prayer desk.
Place the second 1-by-2 foot plank flat so the trimmed end is on top and the longer side is to your left. Take the remaining 6-inch by 2-foot board, and lay it on top of the plank, lining up the left side and bottom of each. The board will protrude on the right. Nail together the pieces. This is the left side of the prayer desk.
You may need a helper for the next couple of steps. Hold the left side of the prayer desk upright. Take one of the 6-inch by 1 1/2-foot boards and, holding it so it protrudes to the right, line up the board at a right angle with the side of the prayer desk. This board will connect the two sides of the desk. The taller part of the side of the desk should facing you as you do this. Nail together the side of the desk and the connector board.
Hold the right side of the prayer desk upright. Line up the right side of the desk (the taller side should be facing you) with the end of the connector board, and nail in place at a right angle. If you've assembled the sides and connector board correctly, the structure so far should be U-shaped.
Nail the other 6-inch by 1 1/2- foot board in the same manner as in Steps 4 and 5, except at the top of the desk sides instead of the bottom.
Take the 2-inch by 1 1/2-foot board and saw down its length at a 45-degree angle. This will be the ledge of the prayer desk; the 45-degree angle will get the ledge flush with the rest of the desk.
Take the 1-foot 10-inch by 1 1/2-foot plank and saw down the 1 1/2-foot side at a 45-degree angle. Fit the plank and 2-inch by 1 1/2-foot board so the 1 1/2 foot lengths are together and the 45 degree angle is flush against a flat surface. The 45-degree cut of the board should allow it to be positioned flush against the plank, like the base and back of a lounge chair or recliner. Nail together the pieces.
Position the 1-foot 10-inch by 1 1/2-foot plank on the main frame so it sits on the top of the desk frame and the ledge is at the bottom. The 1 1/2 foot length should line up with the width of the desk. This is the actual desktop. Nail the desktop in place.
Position the 1-foot 8-inch by 6-inch board across the ends of the boards that protrude from the main frame. Nail the board so it lays flat. This will be the kneeler. Cushion the board with pillows, cloth or other material simply by gluing or nailing the cushioning and material to the top of the kneeler.