DEROFIT Sliding Door Security Bar — Adjustable 16–51 in Inside Patio Door Lock

Protective, adjustable security for sliding doors

DEROFIT Sliding Door Security Bar adds an extra layer of protection for sliding glass doors, patio doors, and wide windows. The telescoping design adapts from 16 inches up to 51 inches, ensuring a snug fit for most standard and oversized openings. Its sturdy metal construction offers reliability without obstructing the view or operation of your door.

2-in-1 security bar for versatile use

The bottom section can be removed, turning this into a window safety bar for large patio doors or sliding windows. Use it as a sliding door bar or as protective window reinforcement—two solutions in one compact device.

• Protective deterrent against forced entry while remaining unobtrusive in your room.
• Prevents curious children or pets from opening doors unexpectedly.

Rugged build and reliable security

Made from high-grade metal, the bar is designed to withstand up to 400 pounds of pressure, offering dependable assistance for homes, apartments, or offices. An extra small key adds a layer of security for when you want an additional precaution.

Easy installation and portable design

No tools are needed—simply set the bar in the door track. The unit is easy to assemble and disassemble for storage, and it travels well, fitting into luggage for hotel stays or vacation rentals. Safe, simple, and ready when you need it.

Who benefits from DEROFIT

• Homes with sliding doors and wide windows seeking a non-permanent security solution.
• Rooms where you want to reduce accidental door openings by children or pets.
• Travelers who need a portable safety bar for hotel rooms or rentals.

Key benefits at a glance

• 16 to 51 inch adjustable fit
• 2 in 1 design convert to window bar
• Deterrent against intrusions and accidental openings
• Withstands up to 400 pounds of pressure
• Tool-free setup and easy storage
• Includes a small key for extra control
• Lightweight yet sturdy for daily use