There are two primary types of security bars: one for standard doors and one for sliding patio doors. Look for a security bar with a patented locking device that can withstand up to 1,000 pounds of force. Patio door security bars should also prevent thieves from lifting the door off the track.
If you plan to replace your floor covering and throw out the old rug you may decide to leave it down as long as it doesn’t make it impossible to paint the floor trim. In most cases you will want to use drop cloths and tape them down over the floor covering using removable masking tape.