--- product_id: 82880266 title: "Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition))" brand: "doorjammer" price: "$127.27" currency: USD in_stock: true reviews_count: 13 category: "Door Jammer" url: https://www.desertcart.us/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection store_origin: US region: United States of America --- # Designed for commercial-grade security Seconds to install & release Industrial-strength alloy steel Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) **Brand:** doorjammer **Price:** $127.27 **Availability:** ✅ In Stock ## Summary > 🛡️ Lock it down fast, live fearless. ## Quick Answers - **What is this?** Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) by doorjammer - **How much does it cost?** $127.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection) ## Best For - doorjammer enthusiasts ## Why This Product - Trusted doorjammer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Portable Peace of Mind:** Compact and lightweight (1.8 lbs) for on-the-go security that fits your dynamic lifestyle. - • **Commercial-Grade Security:** Trusted in schools, offices, hotels—professional protection wherever you need it most. - • **Rapid Emergency Deployment:** Tool-free setup and quick-release mechanism get you secured in seconds—no fumbling, no stress. - • **Unmatched Force Resistance:** Heavy-duty XL size (192mm) locks down inswinging doors with 3mm clearance effortlessly. - • **Versatile Floor Compatibility:** Anchors firmly on carpet, tile, or laminate floors thanks to innovative hinge design. ## Overview The DoorJammer Lockdown (XL Edition) is a portable, industrial-strength door brace engineered for inswinging doors with a 3mm clearance. Crafted from durable alloy steel and designed for commercial use, it installs in seconds without tools and anchors securely on all floor types. Ideal for professionals seeking quick, reliable security in homes, offices, or public spaces, it provides a robust barrier against forced entry while being lightweight and easy to carry. ## Description 2 Versatile Options Visit the Store 2 Versatile Options Visit the Store Review: looks great - door jammer works perfect and looks nice and makes door very secure. I will recommend this product to anyone very well made and easy to install Review: Works Great! - Works exactly as described. When placed directly below the door knob and screwed down properly — the door did not budge open when force was applied. I have used the “stick” type door stop but it stopped working in less than 2 months after the “foot pad” i.e. the part in touch with the floor (mine was vinyl tile) wore out. ## Features - ONLY FOR INSWINGING DOORS WITH 3MM CLEARANCE - This portable, industrial strength door security device prevents unwanted entry. It takes just moments to fit in the gap under an inswinging door without needing tools and uses displacement of force to barricade the door against an attempt at forced entry. - TRIED & TESTED - At twice the size (a height of 192mm), Lockdown is the heavy-duty big brother of award-winning original travel safety device DoorJammer. - DESIGNED FOR COMMERCIAL USE - Created for emergency deployment in public buildings, schools, offices or hotels, this is the last word in portable stopping power. - QUICK SETUP & RELEASE - Takes only seconds to install and remove. No tools are required to implement this revolutionary home security device. In case of emergency, the quick-release easily removes the Lockdown with an upward motion. - HIGHLY VERSATILE - Compatible with all types of flooring, the innovative system of hinges and angles anchor the Lockdown firmly to carpeted, tiled and laminate floors when outside pressure is exerted on the door. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HM9HVN4 | | Best Sellers Rank | #153,491 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #143 in Door Closers | | Brand | DoorJammer | | Brand Name | DoorJammer | | Color | DJ4LD - DoorJammer Lockdown (Heavyweight) | | Customer Reviews | 4.2 out of 5 stars 984 Reviews | | Global Trade Identification Number | 00814953024118 | | Item Weight | 1.8 Pounds | | Manufacturer | DoorJammer | | Manufacturer Part Number | DJ-Parent | | Manufacturer Warranty Description | Manufacturers Warranty | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | DJ4LD | | Mount Type | Floor Mount | | Mounting Type | Floor Mount | | Number of Pieces | 1 | | Product Style | DJ4LD - Lockdown (XL Version) | | Style | DJ4LD - Lockdown (XL Version) | | UPC | 814953024118 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** DoorJammer - **Color:** DJ4LD - DoorJammer Lockdown (Heavyweight) - **Global Trade Identification Number:** 00814953024118 - **Manufacturer:** DoorJammer - **Material:** Alloy Steel - **Mounting Type:** Floor Mount - **Number of Pieces:** 1 - **Style:** DJ4LD - Lockdown (XL Version) - **UPC:** 814953024118 ## Images ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 1](https://m.media-amazon.com/images/I/71vZeb8GlOL.jpg) ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 2](https://m.media-amazon.com/images/I/51TgT8dj5BL.jpg) ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 3](https://m.media-amazon.com/images/I/61OjbVwxevS.jpg) ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 4](https://m.media-amazon.com/images/I/61t4AmVKbDS.jpg) ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 5](https://m.media-amazon.com/images/I/61vo0ffgwTS.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How can I ensure that the DoorJammer DJ4 Lockdown will fit my door?** A: To ensure a proper fit, measure the gap between the bottom of your door and the floor. The clearance must be at least 0.25 inches (1/4”) and no more than 1.5 inches. The DoorJammer DJ3 is designed for inswing doors with a minimum of 3mm clearance. **Q: Can DoorJammer DJ4 secure all door types?** A: It’s designed specifically for inswinging doors with a minimum 3mm clearance from the floor. **Q: Can I use DoorJammer DJ3 on all floor types? Will this work on carpet, tile, or wood floors?** A: Yes, its engineered base grips all flooring types, including carpet, tile, laminate, and hardwood. **Q: Is DoorJammer DJ4 easy to install and remove?** A: Installation takes just seconds—simply slide it under the door and secure. No tools or hardware are needed. **Q: Is this suitable for emergency lockdown situations?** A: Yes, it was originally designed for rapid deployment in schools, offices, and public buildings during lockdowns. ## Customer Reviews ### ⭐⭐⭐⭐⭐ looks great *by R***S on May 6, 2026* door jammer works perfect and looks nice and makes door very secure. I will recommend this product to anyone very well made and easy to install ### ⭐⭐⭐⭐⭐ Works Great! *by P***S on May 11, 2025* Works exactly as described. When placed directly below the door knob and screwed down properly — the door did not budge open when force was applied. I have used the “stick” type door stop but it stopped working in less than 2 months after the “foot pad” i.e. the part in touch with the floor (mine was vinyl tile) wore out. ### ⭐⭐⭐⭐ Quality and heavy duty *by G***Y on November 3, 2022* Not a bad item. But it doesn’t work to secure a door which borders a tile floor. The unit slips off. Tried it on a carpet and cement floor and worked fine. But I needed it for a tile floor so I returned it. ## Frequently Bought Together - DoorJammer Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Strongest Home Strongest Door Stopper - Zinc & Rubber Decorative Door stop. Suits Any Door & Any Floor. Door wedge Stop that is Non-Rust. Black & Silver. Set of 2 + Self-Adhesive Wall Protector - Original Trustella Heavy-Duty Portable Door Lock - Stainless Steel Security Device for Enhanced Safety - Ideal for Home, Travel, Hotels, Apartments - Silicone Protector Caps Included (1, Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection](https://www.desertcart.us/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-08*