The process of laying carpet can be rough on your back and knees, but for the most part is a doable do-it-yourself project. Laying carpet involves renting some tools from your local home improvement store. You can find the carpet and padding at your local carpet shop. Laying carpet can be done with one person, but two makes things easier. Carpet can get heavy depending on the size of the room your refinishing.
Prepare the floor by sweeping up any dust or debris. Walk the entire floor; if there are any creaks add 1 ½-inch nails until all creaks are gone.
Use your hammer to lay the tack strip ½ inch from the wall around the entire room except for the doorways. Butt the corners tightly together. Face the teeth so they are curving towards the walls.
Lay the padding so it overlaps the tack strip, but do not overlap the padding with itself. Use your razor knife to trim the padding, so it's tight up against the inside of the tack strip. Tape the seams with duct tape.
Measure the room, and add 3 inches on all sides. Mark the back of the carpet with your measurements. Cut the carpet and place it on the floor. If the room is big and needs a seam, place both pieces on top of each other and cut through them with one cut ensuring they will match up perfectly. Place both sides of the carpet evenly on the seam tape, and heat it with the iron. Let it dry.
Using your knee kicker, which is an 18-inch tool with teeth on one end and a pad on the other, stretch the carpet onto the tack strip only on one side of the room. Place the back of the carpet stretcher against the wall you started the carpet on. Place the tooth end 6 inches from the opposite wall, and stretch the carpet. Repeat the same process on all sides until the entire carpet is attached to the tack strip.
Use a razor knife to trim the excess carpet tight up against the wall. Trim the carpet in the doorways so the seam is centred under the door. Place the door edge strip on the seam. Cut out holes over any vents, and replace the vents.