---
product_id: 13225571
title: "| Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame"
brand: "gun dog house door"
price: "1334194₫"
currency: VND
in_stock: false
reviews_count: 8
url: https://www.desertcart.vn/products/13225571-heavy-duty-dog-door-chew-proof-weather-tight-energy-efficient
store_origin: VN
region: Vietnam
---

# Weather tight seal Durable for 20-120 lbs Chew proof design | Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame

**Brand:** gun dog house door
**Price:** 1334194₫
**Availability:** ❌ Out of Stock

## Summary

> 🐶 The Last Dog Door You'll Ever Need!

## Quick Answers

- **What is this?** | Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame by gun dog house door
- **How much does it cost?** 1334194₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/13225571-heavy-duty-dog-door-chew-proof-weather-tight-energy-efficient)

## Best For

- gun dog house door enthusiasts

## Why This Product

- Trusted gun dog house door brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Weather Warrior:** Engineered to withstand rain, snow, and everything in between, keeping your home energy efficient.
- • **10-Year Warranty:** Rest easy with a decade-long warranty, proving our commitment to quality and durability.
- • **Easy Installation:** Designed for hassle-free setup, so you can enjoy more time with your furry friend.
- • **Unmatched Durability:** Crafted with a diecast aluminum frame and ¼ inch plexiglass, this door is built to last a lifetime.
- • **Double Hinge Innovation:** Our unique double hinge design allows for seamless entry and exit, ensuring your pup's comfort.

## Overview

The Gun Dog House Door is a heavy-duty, chew-proof, and weather-tight dog door designed for dogs weighing between 20 to 120 pounds. With a robust diecast aluminum frame and ¼ inch plexiglass, it promises durability and energy efficiency, making it the perfect addition to any home. Its innovative double hinge design allows for easy access while ensuring a tight seal against the elements. Plus, it comes with a 10-year warranty, making it a smart investment for pet owners.

## Description

Product description We believe you will agree that the Gun Dog House Door products are the “finest-looking,” best “designed,” and greatest “value” for the money you have ever seen in a pet door. Gun Dog House Door gives you the confidence to say, "At Last Better Dog Doors." Installation Wall and Door Entry Step 1 Measurement The installation height of the ground is more critical to a dog using the door than the size of the opening. We recommend the opening start 2 - 2.5" below your dogs chest. Take your measurement from ground to the bottom of your dogs chest, then subtract 2.5". This will be the bottom of your opening. Step 2 Cutting Your Opening Create the rough opening in your mounting surface per your specific door. Small Heavy Duty Dog Door and Small Easy Dog Door (9 5/8" x 14 1/2"). Heavy Duty Dog Door and Easy Dog Door (13 1/4" x 18 1/4"). Big Dog Door and Easy Big Dog Door (18 1/4" x 26 1/4"). Step 3 PVC Trim We recommend using caulking or silicone on the PVC kit to seal between the kit and mounting surface. The PVC Kit consists of 2 pieces. The narrower piece is installed to the outside of your application. The door will be fastened to this piece. The larger piece is installed on the interior. Your drop down closure will be attached to this piece. Two screws per channel fasten it to the PVC kit, place 1 screw underneath each channel to act as a stop. Step 4 Door and Drop Down Install Installing the dog door, place the dog door over the narrower piece of the PVC kit so the entire opening is covered. Use the included screws to fasten the door to the PVC kit. Installing the Drop Down Closure, use the 4 screws to connect the metal channels to the PVC kit. Once installed, the panel slides down into the channel to prevent use of the door. Show your dog how to use door. Your dog will learn to use your pet door almost at once, but there are a few which may be a little nervous at first. The most important rule is to be patient. Do not let the dog have a bad experience or it may become frightened.

Review: Saint Bernard Fits through it - Ok so this door is metal and very stout. It is 1/4 metal. The clear door opens in one direction and then entire metal housing and clear door open the other direction. I installed my on the outside of the house and trimmed up the inside. It is 10 degrees at night here and now my laundry room stays warm. I have not even added any weather stripping. I work nights and the noise hasn’t bothered me at all. Pros- two screw installation Very large Very sturdy Large heavy duty springs Seals well without weatherstripping Fits my large saint bernard Cons Loud if you have it in you house and not in a laundry room Overall save yourself some money buying this instead of the plastic dog doors that fall apart.
Review: Best dog door ever if you pet chews things - Best dog door ever, I rescue dog with behavioral issues, and I have never had a conventional doggie door last more than a few days until I purchased the Gun Doghouse heavy duty chew proof door. I purchased one and after seeing how well it was mad I purchased two more a week later. The seller description does not give a clear picture of how well thought out this door is designed. To try to make it clear it is a metal frame with a metal door with a second Plexiglass door inside of the metal door. So, the whole metal door opens one way, and the plexiglass inner door opens the other direction. When closed the plexiglass rest inside the metal door which is inside the metal frame.

## Features

- HEAVY DUTY DOOR: Our flagship product, the heavy duty door is made to serve dogs of many sizes 20 pounds to 120 pounds. With the deicast aluminium frame and the ¼ inch plexiglass this door will be the last dog door you ever have to buy. You and your dog will find that this door is virtually indestructible.
- MADE TO LAST: Gun Dog House Door is the industry's most durable and weather tight dog door on the market today. Available in many sizes to best fit your furry buddy. Easy to install every door we make is chew proof and hold a manufacturer's warranty that lasts for 10 years.
- RAIN OR SHINE: Our dog doors are made to withstand any elements that may be thrown at it, we ensure that you will be installing an energy efficient door that will seal off the elements and keep your energy bill from spiking.
- DOUBLE HINGED: Our double hinge construction allows for one panel to swing in and the plexiglass side to swing the other way allowing your dog in and out with comfort. Our hinges are spring hinges so you can ensure once your pup is in or out the door will seal itself back up.
- OUR GOAL: Providing you with a dog door that will last many years, we know you have a four legged best friend that needs to go outside or back to his or her kennel without you always having to be there. We have managed to make a door that will withstand the elements from the weather and the chewing from your pup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004I0AE0Y |
| Best Sellers Rank | #212,033 in Pet Supplies ( See Top 100 in Pet Supplies ) #696 in Dog Doors |
| Brand | Gun Dog House Door |
| Brand Name | Gun Dog House Door |
| Closure Type | Spring |
| Color | Heavy Duty Door |
| Customer Reviews | 4.2 out of 5 stars 237 Reviews |
| Dog Breed Size | Medium |
| Frame Material | Aluminum |
| Item Weight | 6 Pounds |
| Manufacturer | Gun Dog House Door |
| Manufacturer Part Number | 001 |
| Material | Aluminum |
| Material Type | Aluminum |
| Mattress Thickness | 0.25 Inches |
| Maximum Compatible Thickness | 0.25 Inches |
| Minimum Compatible Thickness | 10 Centimeters |
| Minimum compatible thickness | 10 Centimeters |
| Size | Medium 20lbs-120lbs |
| Target Audience | Dogs |
| UPC | 781163826613 696735614782 |
| Weight Capacity Maximum | 120 Pounds |

## Product Details

- **Size:** Medium 20lbs-120lbs
- **Brand:** Gun Dog House Door
- **Color:** Heavy Duty Door
- **Material:** Aluminum
- **Mattress Thickness:** 0.25 Inches

## Images

![| Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame - Image 1](https://m.media-amazon.com/images/I/31kHQnJAcXL.jpg)
![| Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame - Image 2](https://m.media-amazon.com/images/I/31WffQoIaeL.jpg)
![| Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame - Image 3](https://m.media-amazon.com/images/I/21EfkB0zpvL.jpg)
![| Heavy Duty Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 20-120 Lbs | 14”x 20” Frame - Image 4](https://m.media-amazon.com/images/I/91YZmn5O9+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Saint Bernard Fits through it
*by K***T on November 9, 2019*

Ok so this door is metal and very stout. It is 1/4 metal. The clear door opens in one direction and then entire metal housing and clear door open the other direction. I installed my on the outside of the house and trimmed up the inside. It is 10 degrees at night here and now my laundry room stays warm. I have not even added any weather stripping. I work nights and the noise hasn’t bothered me at all. Pros- two screw installation Very large Very sturdy Large heavy duty springs Seals well without weatherstripping Fits my large saint bernard Cons Loud if you have it in you house and not in a laundry room Overall save yourself some money buying this instead of the plastic dog doors that fall apart.

### ⭐⭐⭐⭐⭐ Best dog door ever if you pet chews things
*by D***A on November 15, 2025*

Best dog door ever, I rescue dog with behavioral issues, and I have never had a conventional doggie door last more than a few days until I purchased the Gun Doghouse heavy duty chew proof door. I purchased one and after seeing how well it was mad I purchased two more a week later. The seller description does not give a clear picture of how well thought out this door is designed. To try to make it clear it is a metal frame with a metal door with a second Plexiglass door inside of the metal door. So, the whole metal door opens one way, and the plexiglass inner door opens the other direction. When closed the plexiglass rest inside the metal door which is inside the metal frame.

### ⭐⭐⭐⭐⭐ Puppy Proof
*by C***S on November 11, 2008*

I used to buy the pet doors locally and all they carried were the flexible plastic ones. These would work fine, but all of them cracked and fell apart when we'd get our annual northern states week in January where the temperature drops below -30F. Like putting a rubber band in liquid nitrogen. The last straw was adopting a new puppy who managed to destroy 2 more doors with chewing. This door is very rugged and chew-proof. Easy to install. We've yet to go through a winter with it, but metal and plexiglass should easily survive the cold. It is loud, as I've seen in other reviews, but we have a kennel attached to the barn, so noise is not an issue. If we did have a kennel attached to the house, my guess is some foam insulation would quiet it down just fine. So far, so good.....

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-04*