Dirty weapons that are allowed to build up powder residue or rust can be dangerous to operate, which is why a gun cleaning rack is an important item to have as part of your rifle's accessory equipment, to ensure its safe operation. They are available commercially, but are a relatively simple tool that can be made at home, and serve its function equally well. Another advantage to making your own is being able to select size and colour, to match both aesthetically and your rifle's dimensions.
Assemble a rectangle with the two 4-inch-by-24-inch and two 4-inch-by-12-inch pieces of wood and screw in the 1 1/2-inch wood screws at the four corners. This will be the frame of your crate. Use 3/4-inch wood screws to attach the 14-inch-by-24-inch rectangle of wood to the frame, making the bottom.
Find the centre of the remaining 4-inch-by-12-inch piece of pine and mark off 1/2-inch on either side. Then, 2 inches down from the centre, mark a point. Cut out a V-shaped slot connecting these three points. This will be the barrel rest, for the front of the crate.
Find the centre of the 6-foot-by-12-foot plank, and mark off 1 inch on either side (5 to 7 inches from the edge). Follow each of those points 2 inches directly down and connect the dots, forming a 2-inch-by-2-inch square. Cut out this square. This will be the stock rest for the rifle, at the rear of the crate.
Screw the two rifle rests to the ends of the second 14-inch-by-24-inch plank. The two rests should have 1 inch of empty space on either side. This will serve as the lid to the crate, and the work area for cleaning the rifle. You should use 1 1/2-inch wood screws to secure the rests, screwing them through the lid and into the bottom of the rests. There should be roughly 22 inches between the two rests, leaving ample room for cleaning.
Sand down the exterior of the box with a 600 or 800 grit sandpaper. Use the combo stain sealant in the colour of your choice to seal the box. Using a hot glue gun, line the bottom of the crate and press the felt into place with a blunt object, not your fingers. Once the floor is in place, run a line of glue around the walls and press the felt into place along each wall. Line the V-cut and the square cut from the gun rests with felt as well. This will prevent the wood from scratching your rifle.
Instead of hot glue, you can use tacks or wood staples to add the felt to your box. However, for the notches, hot glue is best, since the staples or tacks can still scratch your firearm.
Always make sure that your rifle is unloaded before cleaning. Always store your rifle in a secure location after cleaning.