Nail down the tackless strip (Photo 2), fingertip width (1/4 to 3/8 in.
then use the tackless strip as a guide to cut the pad to fit lengthwise (Photo 4).
Press hard; you'll actually feel and hear the backing pop onto the tackless strip pins.
Use your hammer to set the backing over the tackless strip pins directly in front of the stretcher head.
Use the knee kicker to lightly bump the carpet so it catches on the tackless strip along Wall B parallel to the stretcher (Photo 10).
Stretch the carpet perpendicular to the first stretch and rub it onto the tackless strip.
Tuck the carpet between the tackless strip and the baseboard molding using the back of a linoleum knife (Photo 12).
Order the equivalent amount of pad to go under the carpet and purchase enough tackless strips to go around the perimeter of the room.
You can reuse your existing tackless strips if the wood is solid and the pins are intact.
If your room is carpeted, roll the carpet back out of the way and pry up the tackless strips
(wear leather gloves--the barbs on tackless strips
are wickedly sharp).