Best Bedroom Door Locks: Top Picks & Buying Guide

This knob is sized to fit standard interior door prep without requiring specialty hardware.

• Fits doors from 1-3/8" to 1-3/4" thick using the included hardware.
• The adjustable latch matches both 2-3/8" and 2-3/4" backsets, the two standard US door prep sizes.
• Overall knob dimensions measure 7.4"L x 3.5"W.

Doors prepped outside these ranges, such as older or non-standard builds, may need an additional extension kit not included here.

The knob ships as a single connected unit rather than separate interior and exterior halves, which keeps the installed profile slim on both sides of the door.

Installation is designed around basic hand tools rather than professional locksmith equipment.

• A screwdriver is the only tool needed for a full install.
• The reversible design allows the knob to be installed on either a left- or right-swinging door.
• All-metal internal components are built to resist wiggling or loosening from repeated daily turning.

Because it is a mechanical turn-button lock rather than an electronic one, there is no wiring or battery step involved in setup.

No additional trim ring or backplate is required beyond what ships in the box, keeping the parts count low for a first-time installer.

The knob combines a privacy locking mechanism with a finish chosen to blend into most interior decor styles.

• A turn-button lock provides keyless privacy, suited to bedrooms, bathrooms and closets.
• The satin stainless finish resists fingerprints and is built to avoid tarnishing over time.
• Materials combine brass, nickel and stainless steel components across the knob assembly.

Like most turn-button privacy locks, this style can be released from the outside with a small pin in an emergency, so it should not be relied on as a high-security lock.

This knob is designed for standard residential doors, fitting backsets from 2-3/8 to 2-3/4 inches and door thicknesses from 1-3/8 to 1-3/4 inches, with a reversible design that works on both left and right-handed doors without a separate part number. Installation is intended as a DIY job with common tools and the included hardware.

• Backset range: 2-3/8 to 2-3/4 inches
• Door thickness range: 1-3/8 to 1-3/4 inches
• Handing: reversible, left or right doors
• Box contents: knob set, mounting hardware, 3 keys

Because the backset and thickness ranges are fixed, doors outside these measurements, such as thicker commercial doors, would need a different hardware set rather than this residential-grade knob.

The locking mechanism is built around a stainless steel handle and brass internals, tested to 250,000 open-and-close cycles before the ball 3-bar mechanism was rated to wear out. A reinforced anti-collision cylinder is intended to resist common forced-entry tactics better than a plain pin-tumbler design.

• Handle material: stainless steel
• Mechanism: brass, ball 3-bar lock design
• Cycle life: 250,000 cycles
• Cylinder: reinforced, anti-collision

The knob locks from both the interior and exterior sides, which adds a layer of control over who can open the door, though it also means a key is required from the inside in some lock configurations rather than a simple turn-latch.

Each knob purchased on its own ships keyed uniquely, so it will not open with the key from another unit bought separately. Matching multiple doors to a single key means ordering them together as one multi-pack listing. Three keys are included per lock set.

• Keying: unique per individually purchased unit
• Keys included: 3 per set
• Matching multiple doors: requires ordering as a set

This setup suits a single entry point or a household buying a multi-pack together, but anyone hoping to add a matching knob to an existing BESTTEN lock at a later date should check with the seller before assuming the keys will match, since standalone purchases are keyed independently.

This lever installs with just a screwdriver in a standard door prep, fitting doors from 1-3/8" to 1-3/4" thick. The latch backset adjusts between 2-3/8" and 2-3/4" with a twist, so it works with either common backset spacing without buying a separate part, and the reversible design covers left- or right-handed doors from the same box.

• Fits doors 1-3/8" to 1-3/4" thick
• Adjustable backset: 2-3/8" or 2-3/4"
• Reversible for left- or right-handed doors

The box includes the privacy lever, an adjustable latch with round and square front options, a round corner strike, rosette, screws, and an Allen wrench, covering a full single-door install.

Built for bedrooms and bathrooms, this lever locks from inside with a turn button and can be released from the outside using the included emergency release tool, rather than a keyed cylinder. That makes it suited to privacy rather than security-grade entry doors, where a keyed deadbolt would be the better fit.

• Inside turn-button locking
• Outside release via included tool, not a key
• Microban-treated surface for reduced bacterial buildup

Because there is no exterior keyhole, anyone locked out accidentally needs the release tool on hand, which is worth keeping in a known spot near the door.

Security, durability, and finish are all Grade 3 BHMA certified, the baseline commercial-adjacent grade for residential door hardware. The lever body is zinc, finished in satin nickel, and backed by a lifetime mechanical and finish warranty covering the mechanism and coating against wear.

• Grade 3 BHMA certification
• Zinc construction, satin nickel finish
• Lifetime mechanical and finish warranty

Grade 3 covers standard residential use; anyone installing on a heavily trafficked door or wanting a higher security grade should look further up the BHMA scale before choosing hardware.

The lock unlocks three ways: fingerprint, keypad passcode, or a physical backup key, so a dead scanner or forgotten code never means a full lockout.

• Stores up to 100 fingerprints and 100 passcodes under a single admin code, useful for offices, rentals, or shared households.
• Anti-Peep technology scrambles the keypad's number layout with random digits before each entry, blocking anyone watching for a fixed pattern.
• The door auto-locks after 5 seconds of inactivity, or instantly with a press of the enter key, closing the gap left by a knob someone forgets to lock manually.
• Passage Mode and Silent Mode let an admin hold the door unlocked during busy hours or mute entry beeps for quiet spaces.

Setup follows a 4-step process with a Philips screwdriver, and the knob is sized to fit most standard US interior doors without cutting or re-drilling the frame.

• Runs on 4 x AA alkaline batteries (not included), rated for up to 1 year of use from a quality brand.
• A Type-C port on the underside accepts a portable power bank if the batteries die, so the door can still be opened without waiting on new batteries.
• Backup keys are included for manual entry if both the batteries and a power bank are unavailable.
• The knob body is built from aluminum and zinc, materials chosen for hardware exposed to daily hand contact.

This is a tubular cylinder knob lock, the category built for interior doors rather than a main entry deadbolt, so it suits the rooms listed in the name: bedrooms, garages, offices, and pantries.

• Good for households wanting to keep a home office or garage off-limits without handing out physical keys to everyone.
• The 100-user capacity for fingerprints and passcodes suits shared or rental spaces where access needs to be added and removed often.
• Because it is a knob rather than a deadbolt, it is not the right choice for a primary front-door lock needing maximum forced-entry resistance.
• Sold only in black, so it matches dark hardware finishes but won't blend with brass or nickel door sets.

Made from an alloy body, this lock is rated to withstand up to 800 lbs of applied force, described by the maker as roughly 16 times more resistant to kicking-in than a standard deadbolt alone. The hardware measures 2.5 x 1.5 x 3 inches once mounted, keeping the profile low against the door edge and frame.

Fit is restricted by door type: it is not suited to French double doors, garage doors, doors that open outward, or doors with a gap under 0.07 inches between the door and frame, since the mechanism needs a standard inward-swinging door with enough gap to engage. Misaligned frames can also prevent a secure fit.

• Size: 2.5 x 1.5 x 3 inches
• Force capacity: up to 800 lbs
• Door type: inward-opening standard doors only

The kit includes 8 screws in total, 4 long and 4 short, so the right length can be matched to the door and frame thickness at hand. A 1/8 inch (3.18mm) drill bit, a common bit size already found in most home tool kits, is needed to pre-drill mounting holes, and the maker estimates a full install at around 5 minutes with an electric drill.

Because it is a drilled installation rather than an adhesive or clamp-on design, mounting is not reversible without leaving screw holes in the door and frame. Checking the product images against the door's own dimensions before drilling is worthwhile, since fit varies by door thickness and frame alignment.

• Screws included: 8 (4 long, 4 short)
• Drill bit needed: 1/8 inch
• Install time: about 5 minutes

Opening the lock from the inside uses a pinch-and-swing motion on the top and bottom grooves, designed to be worked quickly by hand during an emergency without needing a key or tool. This makes it a workable choice for households wanting extra security on a bedroom or exterior door while still being able to exit fast if needed.

It is aimed at supplementing an existing lock rather than replacing one, since it does not include a primary latch or deadbolt mechanism of its own. The maker positions it as added protection for situations like a break-in attempt, giving occupants, including elderly residents or those living alone, more time to react. It will not fit outward-opening doors, garage doors, or doors with narrow gaps under 0.07 inches.

This reinforcement lock is rated to withstand 800 lbs of force, described as roughly 12 times stronger than a standard deadbolt against forced entry attempts.

• The lock body is built from aluminum, measuring 1 x 2.43 x 3 inches once mounted
• A 3-inch stop design adds a deeper engagement point than a typical strike plate
• The hardware kit includes 8 screws, split between 4 long and 4 short, to match different door frame thicknesses

This resistance level is aimed specifically at resisting forced entry attempts like kicking or shouldering the door, rather than covering lock-picking resistance.

Installation is designed to take about 5 minutes using a power screwdriver and drill, mounted onto the door frame with the included screws.

• An installation manual is included for reference during setup
• This lock is built specifically for inward swinging doors, so it will not fit outward swinging entry doors
• Because it mounts directly into the door frame, it is a semi-permanent installation rather than a temporary or removable option

Confirming door swing direction and frame compatibility before drilling avoids having to patch and relocate the mounting holes later.

Beyond forced-entry resistance, this lock includes a spring-loaded childproof design that keeps young children from opening the door to strangers unsupervised.

• The quick-release unlock motion, pressing the upper and lower grooves and pulling horizontally, is built to allow fast exit in an emergency
• It suits households with young children, or anyone living alone who wants an added layer of entry resistance beyond the factory deadbolt
• Because it reinforces an existing door rather than replacing the lock, the original door hardware stays in place alongside it

It is best suited to inward swinging front doors specifically, and buyers should confirm their door's swing direction before ordering.

The ThorBolt G1 Fingerprint Door Knob Lock with Keypad offers reliable functional utility tailored for modern home and workplace environments. Designed to enhance daily productivity, this unit integrates Lightning-Fast Fingerprint Entry -- The illuminated fingerprint sensor alongside Three Ways to Unlock -- In addition to the fingerprint reader (stores. Users will find the intuitive design straightforward to operate across various room configurations and daily routines. The versatile construction adapts easily to personal workspaces, providing consistent practical value and streamlined usability. Physical dimensions measuring 6.5 x 2.68 x 2.68 inches allow for straightforward spatial planning prior to final placement.

Built using resilient structural components, this unit features a sturdy outer housing engineered to resist operational wear. Precision manufacturing ensures that all joints and surface connections remain firmly aligned during regular daily activity. Innovative Toggle Switch for 3-Mode Access Control -- PASSAGE MODE reinforces overall physical stability over extended service periods. Premium Aluminum construction maintains structural integrity and cosmetic appearance under routine handling. Structural integrity remains firm throughout regular usage, giving owners peace of mind. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities.

Initial setup requires placing the unit on a flat, stable surface with adequate clearance around all sides for proper operation. Ensure all power or connection cables are routed neatly without sharp bends to prevent wire strain. Regular care involves wiping exterior housing surfaces with a soft cloth to remove dust buildup. Inspecting mechanical connections periodically preserves operational efficiency and maintains cosmetic appearance over time. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities. This functional equipment provides steady performance and practical convenience when properly integrated into your workspace.

This knob stores up to 20 fingerprints locally on the device itself rather than syncing them to a cloud account, and it switches between 3 modes, passage, entrance and privacy, just by rotating the exterior thumbprint ring. A 5-second auto-locking feature engages automatically once the door closes in Normal Mode, so locking does not depend on remembering to do it manually every time.

• Stores up to 20 fingerprints locally on the knob
• 3 modes: passage, entrance and privacy
• 5-second auto-locking after the door closes

Because Passage Mode is an unlocked state by design, that mode needs to be manually switched off before the door can be locked at all.

The companion app manages stored fingerprints, checks unlocking records, and can lock or unlock the knob remotely, all communicating over Bluetooth within its effective range rather than over a home Wi-Fi network. Reaching the knob over Wi-Fi from outside Bluetooth range requires a separately purchased gateway accessory.

• App manages fingerprints and unlocking records
• Control works over Bluetooth range by default
• Wi-Fi and remote-range control need a separate gateway

That Bluetooth-based access makes it practical for granting and revoking temporary access to guests, such as for a short-term rental, directly from a smartphone.

The knob charges through a combined USB and USB-C port, with the maker recommending at least 3 hours of charge before first installation. If the battery runs out during regular use, a backup physical key still opens the door, or an emergency power source can be used to charge the lock directly through its port.

• USB and USB-C charging port
• Recommended 3-hour charge before first use
• Backup physical key included as a fallback

Housed in an aluminum body measuring 9 x 3.5 x 3.5 inches, the knob is built to mount on standard interior doors such as bedrooms or home offices.

The lock body measures 8.07 x 6.22 x 3.54 inches and is built from aluminum and metal, replacing an existing knob or deadbolt assembly during installation. Initial setup includes pairing the lock with the companion app over Bluetooth to enable fingerprint, code, and remote-sharing features.

• Aluminum and metal construction backs the knob and lock body
• App pairing over Bluetooth enables most smart features after installation
• Backup mechanical keys are included for non-electronic entry

Because both mechanical and electronic access methods are included, installation still results in a usable lock even before the app is fully configured.

Fingerprint recognition responds in about 0.2 seconds and can store up to 20 fingerprints, while up to 100 passcodes can be created and managed individually through the app. AES128 data encryption, combined with a temporary lockout after repeated wrong password attempts, adds a layer of intrusion protection.

• Up to 20 stored fingerprints and 100+ managed passcodes support a full household
• App-based permission sharing lets family and guest access be granted or revoked remotely
• Repeated wrong password attempts trigger a temporary lockout and mobile alert

Because permissions are managed centrally through the app, revoking a single guest's access does not require changing codes for the rest of the household.

Alexa and Google Assistant voice control require a separate G1 gateway, which is not included with the lock itself and must be purchased if voice access is wanted. Rated battery life is approximately 16 months, after which the batteries need to be replaced to maintain fingerprint and keypad access.

• G1 gateway is a separate purchase required for voice assistant control
• Battery life is rated at about 16 months per set
• Type-C port supplies emergency power only, not a charging connection

Because the Type-C port does not charge the lock, keeping spare batteries on hand avoids being locked out if the current set runs low.

Installation is designed to take seconds rather than minutes, with no drill, screwdriver or other tool required. Installation steps:

• Insert the metal piece into the slot on the door lock's strike area
• Close the door fully
• Fit the red handle groove over the stud on the metal sheet

Because no permanent hardware is attached to the door or frame, the lock can be installed and removed repeatedly without leaving marks, which matters for rental units, dorms and hotel rooms where drilling or adhesive hardware is often against the lease terms. The two differently sized mounting holes are included specifically to match varying strike plate and door lock hardware dimensions across different door types.

The core mechanism is stainless steel, chosen for resistance to bending under the pressure of someone pushing on the door from outside. Build details:

• Stainless steel core mechanism
• Rugged ABS plastic outer cover to reduce cosmetic damage to the door
• Electroplated and polished steel surface finish
• Two mounting holes sized for different standard door lock hardware

The ABS cover is there mainly to protect the door surface itself from scuffing or denting under repeated pressure, while the polished plating is intended to keep the steel surface smooth to the touch rather than leaving sharp or raw edges exposed during handling.

This lock is designed as portable, supplemental security rather than a replacement for a door's primary lock. Common use cases:

• Hotel and short-term rental rooms where the primary lock may be a basic keyed or card system
• Dormitories and shared apartments where a housemate has a spare key
• Solo travel situations where extra reassurance against the door opening from outside is useful

Because it works by physically blocking an inward-swinging door, it does not apply to outward-opening doors, and it does not include any alarm or notification feature, so it will not alert anyone if someone tries the door while it is engaged. It is meant to supplement, not replace, whatever primary lock the door already has.