Kick-in resistance: how to know if your door will actually hold

Kicking in doors is the most common break-in method in Canada

Most residential break-ins happen through an unlocked door or a kick-in on a standard door^[?7]. No sophisticated technique required: one sharp kick near the lock transfers a brief, localized force to the point where the strike plate meets the door jamb. If that point is weak — small plate, short screws, soft jamb wood — the door opens.

The good news: that exact point is the simplest and cheapest to reinforce.

The three weak points of a typical residential door

1. The deadbolt strike plate

This is the primary failure point. A standard strike plate is often 6 cm wide, held by two 19–25 mm screws that only reach the door jamb casing (decorative moulding), not the structural stud behind it. That casing is pine or MDF — it splits easily under impact.

2. Hinge screws

Under impact, the door twists slightly on its axis. If hinge screws don't reach past the casing, the hinge side can pull away at the same moment the strike side fails.

3. The door edge itself

On hollow-core or cheap composite doors, the edge around the lock can crack under impact. A door edge guard (door shield) distributes the load over a wider area.

The 10-minute self-inspection

No tools needed for this:

1. Lock the door and push against the lock side with your shoulder. A well-anchored door doesn't move.
2. Open the door and look at the strike plate. If the screws are under 4 cm (1.5 in.), they're not reaching the stud.
3. Look behind the plate. A thin decorative plate concentrates force on too little material. A deep-box strike spreads it.
4. Check the hinges. You want at least one long screw (7.5 cm / 3 in.) per hinge. All short screws means hinges are your second weak link.
5. Repeat for every exterior door: side door, interior garage door, basement door.

What each upgrade actually buys you

Upgrade	Material cost	DIY difficulty	What it changes
3" screws at hinges	$5	Very easy	Eliminates hinge-side failure point
Deep-box reinforced strike plate	$15–$35	Easy	Anchors lock zone into stud
Long screws at strike (3 in.)	Included	Easy	Load transfer to stud
Door edge guard + long strike	$80–$200	Moderate	Also protects the door edge
Full kit (jamb + hinge + edge guard)	$200–$350 installed	—	Addresses all three points at once

For most homes, starting with the strike plate and hinge screws gives the best return. The full reinforcement kit is the right next step if the door has already been forced or the frame shows wear.

Sliding and patio doors

Sliding patio doors deserve separate attention. They're not designed to resist being lifted off their track or lateral lever pressure. See our guide on sliding and patio door security for those specific upgrades.