---
product_id: 66792844
title: "Security Boss Giant Breed Patio Pet Door Large 15 x 28 Flap Insert for Sliding Doors 70-99\" Track Heights"
brand: "security boss"
price: "FREE"
currency: JPY
in_stock: false
reviews_count: 8
url: https://www.desertcart.jp/products/66792844-security-boss-giant-breed-patio-pet-door-large-15-x
store_origin: JP
region: Japan
---

# Security Boss Giant Breed Patio Pet Door Large 15 x 28 Flap Insert for Sliding Doors 70-99" Track Heights

**Brand:** security boss
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Security Boss Giant Breed Patio Pet Door Large 15 x 28 Flap Insert for Sliding Doors 70-99" Track Heights by security boss
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/66792844-security-boss-giant-breed-patio-pet-door-large-15-x)

## Best For

- security boss enthusiasts

## Why This Product

- Trusted security boss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Features

- About this item     15"w x 28"h Flap Opening for Largest Dog Breeds (Mastiffs, Great Danes, etc)     Universal Design for Most Patio Doors     Single Pane Glass & Single Flap     Heavy Duty Aluminum Frame Construction     Tempered Safety Glass

## Images

![Security Boss Giant Breed Patio Pet Door Large 15 x 28 Flap Insert for Sliding Doors 70-99" Track Heights - Image 1](https://m.media-amazon.com/images/I/51wUgyL911L.jpg)
![Security Boss Giant Breed Patio Pet Door Large 15 x 28 Flap Insert for Sliding Doors 70-99" Track Heights - Image 2](https://m.media-amazon.com/images/I/41t+W7EOhmL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Solidly constructed, easy to install, expensive doggie door
  

*by K***K on Reviewed in the United States on November 16, 2019*

Sturdy construction.  Installation reasonably easy although door is quite heavy, and not easy for one person to manipulate.  Got my newfie to help.  Requires a little invention to get a tight seal between dog door and sliding glass door.The panel is mounted into the track of the sliding glass door.  It is held in on the top and bottom by a spring mounted top panel held in place by set screws once properly positioned.  The top is further held tightly in position by a pin lock (not supplied) for the sliding glass door on the top, and by dowel rods (also not supplied) on the bottom track of the sliding glass door.  If you do this right, you should get a very tight seal between the doggie door and the sliding glass door. You will probably need to do both of these things in order to achieve both a tight seal, and a square installation.  Perhaps not important in mild climates, but necessary if you have four seasons.  Locking hardware in the recipient end of the sliding door will need to be removed (usually just two Phillips screws) to install doggie door tightly in door frame.Clear doggie flap panel is quite robust, and magnets work well.  Removable security panel for flap door is stout.The doggie door obviates any lock function on the sliding glass door.  If you are using a pin lock, you will need to re-drill the hole in the top of the sliding glass door frame.  You should also plan on placing custom dowels in the bottom of the sliding door track to provide for security, and for tight bottom fit.  Not hard, but necessitates a trip to the hardware store.  Easiest to fabricate dowels if you possess a jig saw.If you get the giant dog door (for my 150 pound newfie), the sliding glass door will be impassible for normal size humans, assuming your slider is the normal size.  Unless you want to crawl thru the doggie door.  Not a problem for me but need to bear in mind.I was impressed that this is a sturdy, well-engineered and designed product.  Install not easy, but not hard.  Rather expensive, but I have never regretted buying the best available product.  Think this qualifies.Highly recommended.Shipped promptly

### ⭐⭐⭐⭐⭐ 







  
  
    This is a top quality and top grade door
  

*by L***S on Reviewed in the United States on March 8, 2019*

I had a hard time finding a patio dog door large enough for my 115lb German shepherd to fit through. Every extra large door I bought was so small he had to squeeze through it. Plus they did not seal well enough to keep the cold out. The flap did not stay closed in the wind and would warp. These were pet safe brand which I'll never buy again. This dog door is high quality top grade, I love it! Security boss is the brand to buy!

### ⭐⭐⭐⭐⭐ 







  
  
    GREAT
  

*by L***N on Reviewed in the United States on September 14, 2019*

I made a special effort to do this review. Almost never do reviews. This dog door is enormous. I am a size large person, and I can fit through the door quite easily. Our dog is a German shepherd who is very skittish and has no experience with this sort of thing.The flap is just right to help her get over her fear. the size of it is perfect so that she doesn't come to contact with anything except the flap and she goes through. This thing is robust, this thing is stout.I love everything about it and I totally recommend it.I return loss of things toAmazon, and very picky. If you are concerned about the price of this, I think it's worth it. Nobody prompted me to write this!

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**Shop now:** [https://www.desertcart.jp/products/66792844-security-boss-giant-breed-patio-pet-door-large-15-x](https://www.desertcart.jp/products/66792844-security-boss-giant-breed-patio-pet-door-large-15-x)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-12*