Answering the need for reliable protection for French doors, this guide highlights sturdy, easy-to-use locks designed for double doors. The top picks suit different homes and entry risks: homeowners seeking quick, keyless operation; families needing childproof options; and renters requiring portable, no-drill solutions. Below, each product is analyzed for who it’s best for, with a concise buying table to help compare at a glance.
Summary of chosen products:
- PATLOCK Police Approved French Door Security Lock
- AST Double Door Lockout Device (Matte White with Keyed Differ)
- Dakekou Double Door Security Lock
- MOSECYOU French Door Lock, Double Door Security Barricade
- AST Double Door Security Lock (Matte Black with Bigger Adjustment)
PATLOCK Police Approved French Door Lock
Features: Patlocks Instant French Door and Conservatory Security Lock, Easily fitted and released in seconds, No keys or code numbers required.
Best for: Homeowners who want a quick, tool-free installation with simple operation. It’s ideal for double doors fitted with internal horizontal handles where immediate access control is valued. The no-keys design reduces the risk of misplacing hardware and simplifies family use.
Why selected: Lightweight, portable, and designed specifically for French doors and conservatories. It provides a straightforward barrier that disables forced entry without complicated setup.
Caution: Not a replaceable long-term security solution for high-risk properties; rely on additional locking methods for maximum protection.
AST Double Door Lockout Device (Matte White)
Features: Premium version with heavier unibody construction, 3 keys included, adjustable for knobsets and handlesets, portable and no-drill installation.
Best for: Households needing a durable, key-based locking solution that can be used inside or outside and works with a wide range of knob and handle configurations.
Why selected: The unibody diecast aluminum construction offers strong security, with visible indicator of locking status, and keys provide controlled access. Suitable for doorways where you want an extra, tamper-evident barrier without major installation.
Caution: It is not a sole substitute for a reinforced door frame; consider door frame reinforcement if you face significant entry risk.
Dakekou Double Door Security Lock
Features: Heavy-duty double door security lock designed to fit knob and handle sets; suitable for indoor and outdoor use; universal fit with broad adjustment range.
Best for: Settings that need a universal, robust barrier compatible with various knob/handle configurations and both indoor and outdoor environments.
Why selected: A practical choice when you want a reinforced lock that works across many French door designs and can resist weather exposure.”
Caution: While durable, it does not replace a complete door system upgrade for high-security needs; pair with additional security measures for best protection.
MOSECYOU French Door Lock, Double Door Barricade
Features: All-metal construction, adjustable sliding lock bar, compatible with standard French doors with round knobs, suitable for both outswing and inswing doors.
Best for: Users seeking a heavy-duty, metal barricade-style solution that can adapt to different spacing between handles and function in varied entry orientations.
Why selected: The all-metal design emphasizes durability and reliable performance in variable climates, offering a straightforward, no-drill approach to deter forced entry.
Caution: It may require precise alignment with the door handles; verify spacing compatibility before purchase.
AST Double Door Security Lock (Matte Black)
Features: Sturdy aluminum alloy construction, unibody design, 3 keys included, adjustable to fit knob and handle sets, suitable for indoor/outdoor use.
Best for: Homes seeking a combination of metal durability and key-based access with flexible adjustment for various knob/handlesets.
Why selected: The larger adjustment range helps accommodate a wider array of door designs, making it a good future-proof choice for evolving hardware configurations.
Caution: Like all auxiliary locks, it’s most effective when used alongside a solid door/frame and additional security measures.
Buying Guide: How to Choose the Right French Door Lock
- Security level vs. convenience: If quick access is essential, consider keyless or rapid-release options like PATLOCK. For higher security, prefer reinforced metal constructions with multiple locking points.
- Door compatibility: Check knob/handle sets and spacing between handles. Universal or adjustable models work best for mixed hardware.
- Indoor vs outdoor use: Weather resistance matters for exterior doors. Look for rust-resistant metals and seals where applicable.
- Installation needs: No-drill or portable locks are ideal for renters; more permanent options suit homeowners who want long-term solutions.
- Key management: If you require controlled access, choose models with key options and clear status indicators to avoid misplacement.
- Size and fit: Confirm the lock’s dimensions and the door’s swing direction (inward vs outward) to ensure compatibility.
Frequently Asked Questions
- Are these locks suitable for all French doors? Most are designed for common double-door configurations with knob or handle sets, but always verify compatibility with your specific hardware.
- Do these locks require professional installation? Many offer tool-free or no-drill installation, but some models may require adjustments for the best fit.
- Can they replace a deadbolt for entry doors? They are supplemental security devices; they should not replace a primary door locking system for high-security needs.
- Which is best for renters? Portable, no-drill, tool-free options like PATLOCK and similar models are typically best for renters.
- Do these locks improve security against kick-ins? They add an extra barrier, but effectiveness depends on door frame strength and the overall door assembly.
- Is weather resistance important? For exterior French doors, yes; choose metal with corrosion resistance suitable for outdoor exposure.