For volume shippers looking for the most economical ground delivery, Parcel Select is the best option available. As of January 27, 2013, Parcel Select was split into Parcel Select, for online purchasing, and Standard Post for purchasing at the Post Office. Parcel Select is significantly cheaper than Standard Post.
Pocket door. A pocket door is a sliding door that disappears, when fully open, into a compartment in the adjacent wall. Pocket doors are used for architectural effect, or when there is no room for the swing of a hinged door. They usually travel on rollers suspended from an overhead track, although some also feature tracks or guides along the floor.
Advertisement - Continue Reading Below. A pocket door is a great way to pick up usable floor and wall space that normally would be occupied by a door's swing. You can buy and install a pocket door for as little as $100, and the kits are readily available at home centers and lumberyards. There is one catch, though: You'll have to tear out a portion of the wall to make room for the split studs that replace the wooden ones and for the track on which the new door hangs.