Think about how you’ll use the room and who needs access. Popular choices include:

• Privacy knobs/levers: Simple push- or turn-button locks that open from the outside with an emergency pin. Great for everyday privacy.
• Keyed entry knobs/levers: Helpful in shared living, but choose options that allow free egress from the inside for safety.
• Keypad levers: Convenient, no keys to juggle, and many run on batteries. Look for quiet operation and an emergency override.
• Lever vs. knob: Levers are easier to operate for many users.

On Walmart.com, use filters for function (privacy, keyed, keypad), finish, and style to refine your search.

Most interior doors are prepped for standard locksets, so many options fit with minimal effort. Look for:

• Privacy or passage locksets: Typically sized for interior doors around 1-3/8" thick.
• Adjustable latches: Many include 2-3/8" or 2-3/4" backset settings to match common door preps.
• Standard bores: Locksets designed for a 2-1/8" main bore and a 1" latch bore fit most modern doors.
• Handing options: Reversible levers make left/right swing easy.

If your door isn’t pre-drilled, look for installation templates or kits. Avoid double-cylinder setups on bedrooms, as they may restrict quick exit.

A few upgrades can improve privacy and make the door harder to pop open casually, while keeping safety in mind:

1. Install a privacy lockset: A knob or lever with a push/turn button and emergency outside release balances privacy and safety.
2. Strengthen the strike: Upgrading to a reinforced strike plate and using longer screws (where appropriate) can help resist light force. Use care to avoid damage; results vary by frame.
3. Fix alignment: Adjust hinges and latches so the bolt fully seats into the strike—this reduces rattling and accidental openings.
4. Seal gaps: Weatherstripping or a door sweep can reduce light and sound transfer for a more private feel.

It often depends on local codes and your housing agreement. Many areas require bedrooms to allow quick exit without a key, and rentals may need written approval. To stay mindful of safety and compliance:

• Choose free-egress options: Privacy locks or keyed sets that open from the inside without a key are generally preferred.
• Check your lease/HOA rules: Get permission before changing hardware in rentals.
• Consider emergency access: Privacy locks with an outside pin-release can help in urgent situations.
• Review local guidelines: When in doubt, consult local building/fire codes or a qualified professional.

Measuring before you buy can make installation smoother:

1. Door thickness: Measure the edge—most interior doors are about 1-3/8" thick.
2. Backset: Measure from the door edge to the center of the existing hole (commonly 2-3/8" or 2-3/4").
3. Bore sizes: The main hole is often 2-1/8"; the latch bore is typically 1".
4. Handing: Note if the door swings left or right; many levers are reversible.
5. Prep condition: If there’s no hole, consider an installation kit/template.

On Walmart.com, check product specs for adjustable latches and installation instructions, and look for Pickup or Delivery options that fit your schedule.