Entry Door — exterior door for access and security

An entry door is the primary exterior door assembly used for access, security, weather protection, and curb appeal at a building entrance.

Entry Door diagram — labeled parts, dimensions, and installation context

What It Is

The entry door is more than just the slab you open and close. It works as an assembly that includes the frame, threshold, weatherstripping, hinges, latchset, and often sidelites or glass inserts.

A good entry door resists weather, air leakage, forced entry, and repeated daily wear. Problems with sagging, swelling, drafts, or rot usually involve the surrounding frame or threshold as much as the door itself.

Types

Common types include fiberglass, steel, and wood entry doors, with options such as solid panels, glazed inserts, sidelites, and double-door configurations. Some are prehung units while others are slab-only replacements.

Where It Is Used

Entry doors are used at front, side, rear, and garage-to-house entrances. The main front entry usually receives the most attention for appearance, security hardware, and weather sealing.

How to Identify One

Look for the main hinged exterior door used to enter the home from outside. It typically has a lockset, deadbolt, threshold, and surrounding exterior trim.

Replacement

Replacement is needed when the door or frame is rotted, warped, badly dented, drafty, or no longer secures properly. Full-frame replacement is often best when the threshold or jambs are also damaged.

Entry Door — FAQ

What is the best material for an entry door?

Fiberglass is popular because it balances durability, insulation, and low maintenance. Steel is strong and cost-effective, while wood offers a premium look but needs more upkeep.

Why is my entry door hard to close?

Common causes include hinge sag, seasonal swelling, settling, and worn weatherstripping or thresholds. The problem is often in the frame alignment rather than the slab alone.

Can I replace just the door slab?

Sometimes, but it only works well when the existing frame is in very good shape and matches the new slab precisely. If the jamb or threshold is damaged, a full prehung replacement is usually better.

How do I know if my entry door is leaking air?

Drafts, daylight around the perimeter, and higher heating or cooling bills are common clues. Worn weatherstripping and an out-of-adjustment latch are frequent causes.