Selecting Locks

• 1). Examine your existing door and frame. The door and frame will likely have holes or recesses that are designed to fit a specific lock style and size. Measure the size of each hole as well as its location on the door. To make installation easier, choose a lock that requires these same hole sizes and locations. For example, if you have an existing handle set and deadbolt, you will need a new handle set and deadbolt. If you try to use a different type of lock, you will have to try to fill the existing holes in the door.
  
  
• 2). Determine what type of lock function you will need. Locks used on entry doors operate using an entry function. Locks for exit doors may have an exit-only function. For interior doors, consider storeroom or office functions. By choosing the right lock for the job, you will improve your level of security while maintaining the necessary access and convenience.
  
  
• 3). Decide if you need an unkeyed lock. Passage locks are used to keep doors latched, but are not lockable. They are often used in closets, bedrooms, and corridors. Privacy locks do not use keys, but can be locked from inside using a thumb turn or button. Most bathroom doors and some bedroom doors will require privacy locks.
  
  
• 4). Consider auxiliary locks. If you already have an existing lockset, you may wish to add a separate deadbolt. Deadbolts can improve security on interior and exterior openings. Look for two-sided deadbolts if the lock will be located near a glass window or sidelight.
  
  
• 5). Choose the style and design of your lock. Today's hardware devices are available in rustic designs or sleek modern styles, along with every look in between. Find a unit that matches your door and the surrounding decor.
  
  
• 6). Review available finishes. Locks are available in a wide variety of finishes, including brass, bronze, nickel, steel and chrome. Find a finish that matches your door, and consider the maintenance and durability of each option. For example, exterior door hardware may rust or corrode over time. To minimize this effect, look for brass, nickel or aluminum options.
  
  
• 7). Understand hardware grades. Hardware is categorized by its grade, which can range from Grade 1 to Grade 3. Grade 1 hardware is the most expensive, but also the most durable and long-lasting. Most homeowners will benefit from Grade 2 hardware on exterior openings. Grade 3 locks should only be used on interior, low-traffic applications.
  
  

Selecting Other Hardware

• 1). Choose your hinges. Hinges are used to hang and swing a door. For doors shorter than 7 feet 6 inches, three standard-weight hinges are typically used. If your door is taller than 7 feet 6 inches, try adding a fourth hinge for extra support. For very heavy or wide doors, use heavy-weight hinges rather than standard units.
  
  
• 2). Use pivots in place of hinges to add a touch of elegance and style. Pivots are installed in the center of the door, and are nearly invisible whether the door is open or closed. They also allow the door to be opened more easily and can make a heavy door feel very light. Pivots will also last much longer than hinges for most over-sized doors.
  
  
• 3). Consider adding kickplates to one or both sides of the opening. Kickplates will protect the base of your door from damage and can make it easier to keep the bottom of the door clean. Look for stainless steel plates that can withstand rust and corrosion. These plates should be sized about 1 inch smaller than your door in terms of width to avoid interfering with the door's operation.