The unique tubular foam will protect your wood trim. Just place the top bar above your trim on the inside of your doorway and center the bar in the doorway to begin pull-ups. When you move apartments or homes, you have no need of another bar - take this one with you. A lifetime of muscular fitness with the Universal Door Mount. Unique cantilever hold - no brackets or screws into your doorframe. Our bar sits a full 4 inches away from your doorframe for elbow clearance. Most imitation bars sit on your doorframe rubbing your elbows as you pull up and down. Assembles with 5 bolts. This bar has been tested for over 300 lbs.