The Anatomy of a Perfect Front Door Installation

A front door has an unusual job. It is a moving mechanical part installed in a deliberate hole in your building envelope, it has to keep out wind-driven rain, and it is the primary security barrier for the house. Almost everything that later goes wrong with one was determined in the hour it was installed.

South Florida is unusually hard on entry doors. Sun degrades finishes on a west-facing elevation quickly, humidity works on any exposed wood, and a single storm band drives water at the assembly from an angle ordinary rain never reaches.

The opening comes first

Before a new door is even unwrapped, the rough opening needs examining. In Delray Beach we regularly find rot at the base of the jamb or in the subfloor beneath the threshold, because that is where water has been quietly collecting for years behind a failing seal. Setting a new door onto compromised material guarantees the new door fails in the same way.

The opening also has to be square, plumb and level, or made so. Nothing downstream can compensate for an opening that is out.

Shimming is the whole job

If there is a single detail that separates a door which still closes perfectly in ten years from one that sticks by next summer, it is shimming. The frame must be supported at the hinge locations and at the strike so that the jamb cannot flex when the door swings or when the deadbolt is thrown. Fasteners at the hinges should be long enough to reach the structural framing behind the jamb rather than biting only into the jamb itself, which is both a longevity point and a serious security point.

The reveal, meaning the gap around the door, should be consistent top to bottom and side to side. An inconsistent reveal is the visible symptom of a frame that is not properly supported.

Weatherproofing, layer by layer

Keeping water out is a system rather than a bead of caulk:

• Flashing at the sill so any water that gets past the threshold is directed back out rather than into the floor
• A properly adjusted threshold that meets the door sweep along its whole length
• Continuous weatherstripping at the head and both jambs, with no gaps at the corners
• Perimeter sealant on the exterior, left open at the very bottom so trapped water can escape rather than being sealed in
• Insulation or foam in the gap between frame and framing, using a low-expansion product that will not bow the jamb

Hardware that is actually doing something

A deadbolt is only as good as what it lands in. That means a bolt with adequate throw, a reinforced strike plate, and long screws through the strike into the framing. A standard strike held by short screws into soft jamb material can be defeated by a shoulder, regardless of what the lock cost.

While the door is off, it is also worth thinking about accessibility. A lever handle is dramatically easier for arthritic hands than a knob, and a low-profile threshold makes a considerable difference for anyone using a walker.

Check the rules before you choose a color

In most Delray Beach associations the front door is a regulated exterior element. Color, style and sometimes hardware finish need architectural approval before installation. It is a short conversation beforehand and an expensive one afterwards.