--- product_id: 9029011 title: "BX1 10.5 in Baby Gate Extension, Black | Adds 10.5 in of width to SS30 Stairway Special, SS30OD Outdoor, and MG15 Auto-Lock baby and pet gates. Match gate color." brand: "cardinal gates" price: "¥15916" currency: JPY in_stock: false reviews_count: 8 url: https://www.desertcart.jp/products/9029011-bx1-10-5-in-baby-gate-extension-black-adds-10 store_origin: JP region: Japan --- # Sleek black color match 10.5-inch width extension Compatible with 2 gate models BX1 10.5 in Baby Gate Extension, Black | Adds 10.5 in of width to SS30 Stairway Special, SS30OD Outdoor, and MG15 Auto-Lock baby and pet gates. Match gate color. **Brand:** cardinal gates **Price:** ¥15916 **Availability:** ❌ Out of Stock ## Summary > 🚪 Extend your safety, not your worries. ## Quick Answers - **What is this?** BX1 10.5 in Baby Gate Extension, Black | Adds 10.5 in of width to SS30 Stairway Special, SS30OD Outdoor, and MG15 Auto-Lock baby and pet gates. Match gate color. by cardinal gates - **How much does it cost?** ¥15916 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/9029011-bx1-10-5-in-baby-gate-extension-black-adds-10) ## Best For - cardinal gates enthusiasts ## Why This Product - Trusted cardinal gates brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek & Subtle:** Matte black finish perfectly matches your gate for a cohesive look. - • **Dual Compatibility:** Works seamlessly with both SS30 and MG15 gate models for versatile use. - • **Trusted Safety Legacy:** From Cardinal Gates, a brand with 25+ years of certified home safety expertise. - • **Effortless Installation:** Quick attach design means no hassle, just enhanced protection. - • **Expand Your Safety Zone:** Add 10.5 inches of secure width to your existing gate effortlessly. ## Overview The BX1 10.5-inch Baby Gate Extension by Cardinal Gates enhances the width of SS30 and MG15 baby and pet gates, expanding coverage up to 53 inches. Designed for easy installation and a perfect color match, this extension offers a reliable, certified safety solution trusted for over 25 years. ## Description About the BX1 Safety Gate Extension: Perfect for wider openings. A 10.5 inch width extension that works with Cardinal Gates Stairway Special (model SS30), Outdoor Safety Gate (model SS30OD), and Auto-Lock Safety Gate (model MG15). Easily attaches to your pet gate for simple installation. About Cardinal Gates: We've been dedicated to making homes safer since 1993. Over the years, we expanded from the original Hearth Guard to a full line of safety gates for children and pets. We have been a member of JPMA for over 25 years and all of our baby gates are certified annually. We are here to help make your home safer. ## Features - This extension works with TWO different gate models, the SS-30 and the MG-15 - SS-30 gate is expandable width from 27” to 42. 5”. Add the 10. 5” extension to that gate and the maximum width is 53 inches. - MG-15 gate is expandable width from 26. 5” to 40. 5”. Add the 10. 5” extension to that gate and the max width is 51” inches. - Both gates ( SS-30 and the MG-15) are adjustable width. The extension is fixed width - Refer Instruction Manual under Technical Specification ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000F1S97K | | Best Sellers Rank | #462 in Door & Stair Baby Gates | | Date First Available | February 22, 2007 | | Item Model Number | BX1-BK | | Manufacturer | Cardinal Gates | | Manufacturer Recommended Age | 4 months - 3 years | | Product Dimensions | 1 x 10.5 x 29.5 inches; 2.3 pounds | ## Images ![BX1 10.5 in Baby Gate Extension, Black | Adds 10.5 in of width to SS30 Stairway Special, SS30OD Outdoor, and MG15 Auto-Lock baby and pet gates. Match gate color. - Image 1](https://m.media-amazon.com/images/I/71jbcwVjpfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great find *by on Reviewed in the United States June 30, 2026* This brand of gate and this extension has been a lifesaver for us. Two dogs that have run out into the yard and one got a skunk . This allows us to get a view of the yard before we let them into the yard. The gate is high quality, sturdy, good looking gate. We have another one that is still going strong after seven years of Constant use. ### ⭐⭐⭐⭐⭐ Very well designed Pet Gate Extension *by on Reviewed in the United States November 21, 2010* We built our deck with a 4' wide set of stairs...anything less and it's very hard to carry up large grills, tables, etc...But, finding a pet gate that would work on such a wide stair opening was difficult. We found this Cardinal Pet Gate with the optional Extension a perfect choice.This gate system is very strong, coated to prevent rust from the elements, and the hinge system was easy to install. Plus the fact that this optional extension was available allowed us to have our staircase closed off. The Cardinal system has an adjustable main gate, which allows coverage over a nice range of openings. Our 4' opening was just a bit too big, thus we also purchased the extension, which bolts to the main gate making a nice solid gate. Make sure to purchase the stainless-steel screws so you can have rust free protection.One note, the locking mechanism seemed a bit weird when I first saw it, but once installed, it is great! We also use this as a baby gate and the locking mechanism can only be opened by pushing two outer taps at the same time that you lift the gate slightly...very difficult for a toddler...impossible for our cats! ### ⭐⭐⭐⭐ If only... *by on Reviewed in the United States August 10, 2021* Great add on to make Cardinal's excellent safety gates (both the indoor & outdoor versions) fit openings over 42.5". Looks great, super easy to add to the installation with just a couple bolts & washers. That's where it gets quirky The gates themselves, all 3 color choices, come w/stainless steel hardware (outdoor gates), but the indoor gate hardware is not ss. The extenders have ss hardware for only the brown version. You can either use a brown extender with black or white gates, buy a ss hardware pack (3 bolts + 3 washers) to replace what comes packaged, or go buy those pieces at a local hardware store for $2 or so. Seems like an avoidable customer inconvenience w/ an easy customer centric solution that would be pennies to just upgrade these pieces in all extensions. --- ## 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.jp/products/9029011-bx1-10-5-in-baby-gate-extension-black-adds-10](https://www.desertcart.jp/products/9029011-bx1-10-5-in-baby-gate-extension-black-adds-10) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-15*