FAST U.S. SHIPPING & EASY RETURNS

Gun Dog Big Dog Door

Gun Dog Big Dog Door

Regular price
$269.99
Sale price
$269.99
Regular price
Sold out
Unit price
per 
Shipping calculated at checkout.

This field is required.

  • Large, durable dog door for dogs up to 200 pounds
  • 15" x 23" acrylic flap with aluminum frame for added sturdiness
  • Chew-proof flap, suitable for energetic and active dogs
  • Installs easily in kennels, doors, and walls (with proper framing)
  • Limited lifetime warranty 

Product Details


The Gun Dog Big Dog Doors have the same features as the Heavy Duty Dog Doors, only they are designed with a larger flap dimension of 15" x 23". The greater size of this flap is intended to accommodate large dogs up to 200 pounds. This makes the Gun Dog House Door one of the most durable dog doors out there, with chew-proof flaps and longer-lasting dog door hinges.

The Gun Dog- Big Dog Door is a cost-effective and reliable dog door designed for dogs up to 200 pounds and features a 15" x 23" chew-proof acrylic flap with a sturdy aluminum frame that holds up against even the most energetic and active pets.

Constructed with a 1/4" thick clear acrylic flap, this dog door allows your pet to easily see through it, making it an ideal choice for dogs of all breeds and sizes. The aluminum frame adds extra support, ensuring that the door can withstand rough play and harsh weather conditions. Designed to be installed in kennels, doors, and walls with proper framing, this dog door provides your pet with the freedom to come and go as they please.

The Gun Dog Big Dog Door is extremely durable. The heavy-duty construction ensures that the door will last for years to come, even in the face of constant use and boisterous play.

Features:

  • Heavy-duty construction for long-lasting durability
  • Clear, 1/4" thick acrylic flap for easy visibility and passage
  • Aluminum frame provides additional support and resilience
  • Suitable for large dog breeds and high-energy pets
  • Designed for severe, 4-season climate suitability
  • Installs in kennels, doors, and walls with the proper framing material.
  • A closing cover can be purchased separately if desired. It mounts on the opposite side of the door or wall from the pet door. A sturdy, 1/4" thick polypropylene panel slides down aluminum channels over an 18" width x 28" height opening. If you would like this closing cover to be lockable, drill a 1/2" hole through the cover and wall on the inside and insert a short dowel.

 Benefits:

  • Heavy-duty flap holds out against active, hyper dogs.
  • Durable door withstands rough climates.
  • Clear flap is ideal for dogs, as they prefer being able to see through it prior to going in or out.
  • Warranty covers chewing, which is especially helpful for dogs who are adamant, excessive chewers.
  • Great choice of doggie doors for big dogs or energetic breeds.

Size Chart

Flap Dimensions:

15"w x 23"h

The entry way your dog goes through.
flap dimensions
rought cut out

Rough Cut Out:

16 1/2"w x 25 1/2"h

The size of the hole needed to fit your pet door into your door.
Flap SizeFlap DimensionRough Cut OutRecommended Pet Height
Large15" w x 23" h16 1/2" w x 25 1/2" h21" - 34"
Closing Covers for this dog door: Gun Dog Closing Covers. 

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Additional Information

Color

Brushed Aluminum

Flap Dimension

15" w x 23" h

Frame Material

Aluminum

Flap Material

Acrylic

Flap Colors

Clear

Flap Thickness

1/4

Warranty Period

Limited Lifetime

Return Period

30 days

Rough Cut

16 1/2" w x 25 1/2" h

Flap Type

Single Flap

Your Maximum Pet Size

X-Large Dogs

Climate Suitability

Severe-4 Season

Flap Design

Single, Two Part, Rigid, Thin Flap

Ability to Lock Flap

No Flap Lock Provided

Can Be Installed In

Solid Core Door

Sealing Value

High

Wind Resistance

High

Insulation Value

Average

Installation Instructions

Wall Installation

installation video image
Installation icon Difficulty Moderate
Installation icon Steps 04
Installation icon Time Required 1-2 hours
Installation icon Sections 01
Installation icon Flags 02

Parts

  • Gun Dog Pet Door
  • Two 1-1/2" wood screws

Tools

  • Tape measure
  • Tools for cutting a hole in your wall
  • Wall framing materials
  • Felt or rubber weatherstripping

The Heavy Duty Dog Door ® and Big Dog Door™ are installed on the outside surface of a building, wall or door, etc.

Step 1 Measure Pet Height

  • Measure the belly height of your pet from ground level to his underside to find the correct height of the door opening. The bottom edge is usually from 6" to 12".
  • Do not mount flush to ground.
  • For the Heavy Duty Dog Door, cut the opening 12-1/2" wide x 17-1/2" high.
  • For the Big Dog Door, cut the opening 16-1/2" wide x 25-1/2" high.

Step 2 Determine Framing Requirements

  • If mounted on garage or house wall, frame the depth of the wall to form a tunnel through the wall. (Use 2" X 4" or 2" X 6" material).
  • If needed, add a least a 1/2" x 1-1/2" flat outside mounting surfacing.

Step 3 Cut the Opening

  • Cut opening, if needed add a 1-1/2" flat mounting surface.
  • Place door over opening and use the enclosed two 1-1/2” wood screws to hold door to opening.

Step 4 Apply Weatherstripping

  • Install 1/8" felt or rubber weather stripping on surface of building or door.
  • Do not put rubber weather stripping on Gun Dog House Door.
  • If your door does not close at the bottom, the door is installed incorrectly. Unscrew door and move 1/4" lower.
  • If there is a gap between top strap and upper doorframe, move door 1/4" higher.

Door Installation

installation video image
Installation icon Difficulty Moderate
Installation icon Steps 04
Installation icon Time Required 1-2 hours
Installation icon Sections 01
Installation icon Flags 00

Parts

  • Gun Dog Pet Door
  • Two 1-1/2" wood screws

Tools

  • Tape measure
  • Pencil
  • Drill
  • Jigsaw
  • Door framing materials
  • Silicone caulking

The Heavy Duty Dog Door® and Big Dog Door™ are installed on the outside of a house door or a garage door.

Step 1 Measure Pet Height

  • To find correct height of the hole for your dog, measure the belly height of your pet (average installation is 6"-12").
  • Mark the height in pencil on one side of your door.

Step 2 Drill Holes

  • The Heavy Duty Dog Door hole size is 12-1/2" x 17-1/2".
  • For the Big Dog Door the hole size is 16-1/2" x 25-1/2".
  • Drill a half inch hole into each corner. Then draw lines to connect the corners.
  • Insert jigsaw into drill hole and follow drawn lines to cut out hole.

Step 3 Steel and raised Panel Doors

  • If installing on a steel door, cut hole 3/4" larger, glue 3/8" pine, cedar, or plywood strips to inside of the opening.
  • If installing on a raised panel door, cut hole in center of door 3/4", glue 3/8" pine, cedar, or plywood strips to inside of the opening to cover styrofoam and install trim to inside/outside of door surface.

Step 4 Hollow Core Doors

  • If installing in a hollow core door, use four strips of wood the same width as the hollow between the panels in your door.
  • Position the wood so that they are flush with the edges of the hole.
  • Either glue, nail, or screw the strips. Frame the outside/inside hole with 2" x 1/4" lengths.

Step 5 Complete Installation

  • Use silicone caulking around trim kit for added insulation.
  • To quiet door closing, staple 5/8" of the window felt to the sides and the bottom of the pet door.

Training Timid Dogs to Use the Pet Door

Whether you have an adult dog, or a new puppy, teaching him how to use a Gun Dog House Door® (GDHD) will be done the same way. When you install your dog door, make sure you measure the "rise" of your dog (the measurement from the floor to the lowest part of your dog's chest or stomach). This measurement tells you where to place the "bottom" of your dog door. The bottom of your dog door should be an inch lower than the "rise" of your dog.

If you have a puppy you will need to install the dog door one inch from the ground; and you will need to reinstall it at higher intervals as your puppy grows. Another option is to take an educated guess as to how tall your dog will eventually be, install the dog door at the appropriate height, and construct a "puppy-ramp" so your puppy can reach the dog door and go through it comfortably.

Once the frame of the GDHD door is installed in a wall or door, leave the GDHD off at first. Have someone stay inside with your dog while you go outside. Call your dog through the "hole" (door frame without the GDHD). When he goes through and comes to you, praise him lavishly and give him a treat. Now have the person inside the house call him through the "hole." When he gets to them, they should praise it and offer a treat as well. Do this at least 3 times and no more than a dozen. After this, your dog will know there is a hole in the wall or the door especially for him.

Step 1: Leave the GDHD off the cut opening for one full day. Encourage him to use his opening by not letting him use the "real" doors. Instead, you use the real door and say to your dog, "Go to your door!" pointing in the direction of his dog door. You may need the help of someone inside to "help" the dog find his new door. After a half a dozen times, your dog should like this new game! If you have a very young puppy, do not expect them to learn "Go to your door" for many weeks or months; still give them the command in a happy voice, and have someone inside show them where their door is every time. It sometimes helps if you are outside (after going through a real door) and someone else helps your dog or puppy find the doggie door as you call him from outside.On the second day, install the GDHD.

Step 2: Now, you will need to repeat the same exercise as when you first sent your dog through the "hole." But this time, the person on the same side of the door as the dog will need to "push" the GDHD open for him. Each time the dog goes through the door, push the GDHD less and less for him. It is important that the dog gets used to the feel of the GDHD on the back of his head so once your dog has begun going through the door, let go of the GDHD so he feels it on his head and body as he goes through the door. Eventually the dog will need to push the GDHD by himself and dogs are usually hesitant to do this at first. He will probably put his nose down by the bottom of the GDHD and wait for the GDHD to move (after all, it has up to now). At this point, push the GDHD slightly so that your dog can see it is a moveable object, let the GDHD bounce back to the closed position. The best way I can explain it is that you are "poking" GDHD using short, quick pokes. This gives the dog a glimpse of an opening and encourages him to poke the door himself.

Step 3: At this stage, some dogs begin going through the door with ease, others become quite excited, but still haven't figured out that they can push the door open. If your dog will not push the door open by himself yet, remove the GDHD and install a piece of carpet onto the opening. You want the carpet to have a least a _” opening on the sides and bottom. The dog should feel more comfortable pushing the carpet on its own. After 2-3 days, install the GDHD and with our enthusiastic encouragement and praise, your dog should be able to push the GDHD now with no problem.

Videos

Gun Dog "Heavy Duty" Dog Door



FAQ

Q: What are the differences between the Gun Dog doors?

A: The Gun Dog Easy Dog Door is lighter than the others because the hinges aren't spring loaded and there are no magnets to assist with closure; this makes it easier for smaller dogs and maybe cats to use the door. The Gun Dog Heavy Duty dog door has a rigid door that includes a warranty covering chewing damages. This is the original door that was created by Gun Dog to address all the issues the owner of the company ran into while operating his kennel for large lab retriever dogs.The Gun Dog Big Dog Door is the same as the heavy duty door, but it just offers a larger flap size of 15" x 23". The first of three models, Gun Dog Easy Dog Door is the lighter versionCovering chewing damages with a rigid flap is the Gun Dog Heavy DutyLastly is the largest version this brand has to offer, Gun Dog Big Dog Door

Gun Dog Easy Dog Door         Gun Dog Heavy Duty           Gun Dog Big Dog Door

Q: Do the Gun Dog doors come with locking covers?

A: No, the Gun Dog Doors do not come with locking covers. However, you can purchase a closing cover and you can lock this cover by drilling a 1/'2" hole through the cover and wall on the inside and inserting a short dowel. Or you can purchase one of the guillotine doors and mount that on the side opposite the door as a closing cover.

Q: Can I use the Gun Dog doors for just a regular house installation?

A: Yes, a Gun Dog door may be installed in a home, however, kennel dog doors, like Gun Dog, are usually rigid because the flaps must be durable enough to withstand constant wear and tear. This durability has not been seen in flaps made out of vinyl, but it does make them very noisy so installation in a home might not be advisable.

Where can I purchase replacement flaps?

Unfortunately, we do not sell replacement flaps for Gun Dogs. If you need a replacement, part you will need to order directly from the manufacturer. Be sure to also check out our full selection of dog supplies and related products.

Is there a double flap model available?

Many pet owners like dual flap pet doors since they are more energy-efficient. The Gun Dog pet door does not have a double flap design, but the Ruff Weather pet door and the Petsafe Extreme Weather pet door does.

How much does shipping cost?

Shipping is calculated at checkout.

Warranty

Gun Dog House Door® Co.

The Heavy Duty Dog Door®, Big Dog Door™, Easy Dog Door™ is covered by a limited lifetime warranty. We warrant this product to be free of defects in materials or workmanship for the life of your dog. Damage caused by accident, improper installation or abuse is specifically excluded from this warranty. Gun Dog House Door® Co. is not responsible for any incidental or consequential damage resulting from use of this product. Normal wear and tear excludes the hinges from warranty. Customers are responsible for all shipping costs.

Partial returns and/or damages will not receive full credit. Items damaged through USE or due to return shipping damage will receive partial or no credit. Should you decide that you wish to refuse receipt of an item when delivered by UPS, USPS, FedEx or common carrier and legitimately ordered the product, credit will be issued minus any shipping custom fees and charges.



Customer Reviews

Gun Dog Big Dog Door

Default Title Edit

Gun Dog Big Dog Door

Size Chart

Flap Dimensions:

15"w x 23"h

The entry way your dog goes through.
flap dimensions
rought cut out

Rough Cut Out:

16 1/2"w x 25 1/2"h

The size of the hole needed to fit your pet door into your door.
Flap SizeFlap DimensionRough Cut OutRecommended Pet Height
Large15" w x 23" h16 1/2" w x 25 1/2" h21" - 34"
Closing Covers for this dog door: Gun Dog Closing Covers. 

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Color

Brushed Aluminum

Flap Dimension

15" w x 23" h

Frame Material

Aluminum

Flap Material

Acrylic

Flap Colors

Clear

Flap Thickness

1/4

Warranty Period

Limited Lifetime

Return Period

30 days

Rough Cut

16 1/2" w x 25 1/2" h

Flap Type

Single Flap

Your Maximum Pet Size

X-Large Dogs

Climate Suitability

Severe-4 Season

Flap Design

Single, Two Part, Rigid, Thin Flap

Ability to Lock Flap

No Flap Lock Provided

Can Be Installed In

Solid Core Door

Sealing Value

High

Wind Resistance

High

Insulation Value

Average

Installation Instructions

Wall Installation

installation video image
Installation icon Difficulty Moderate
Installation icon Steps 04
Installation icon Time Required 1-2 hours
Installation icon Sections 01
Installation icon Flags 02

Parts

  • Gun Dog Pet Door
  • Two 1-1/2" wood screws

Tools

  • Tape measure
  • Tools for cutting a hole in your wall
  • Wall framing materials
  • Felt or rubber weatherstripping

The Heavy Duty Dog Door ® and Big Dog Door™ are installed on the outside surface of a building, wall or door, etc.

Step 1 Measure Pet Height

  • Measure the belly height of your pet from ground level to his underside to find the correct height of the door opening. The bottom edge is usually from 6" to 12".
  • Do not mount flush to ground.
  • For the Heavy Duty Dog Door, cut the opening 12-1/2" wide x 17-1/2" high.
  • For the Big Dog Door, cut the opening 16-1/2" wide x 25-1/2" high.

Step 2 Determine Framing Requirements

  • If mounted on garage or house wall, frame the depth of the wall to form a tunnel through the wall. (Use 2" X 4" or 2" X 6" material).
  • If needed, add a least a 1/2" x 1-1/2" flat outside mounting surfacing.

Step 3 Cut the Opening

  • Cut opening, if needed add a 1-1/2" flat mounting surface.
  • Place door over opening and use the enclosed two 1-1/2” wood screws to hold door to opening.

Step 4 Apply Weatherstripping

  • Install 1/8" felt or rubber weather stripping on surface of building or door.
  • Do not put rubber weather stripping on Gun Dog House Door.
  • If your door does not close at the bottom, the door is installed incorrectly. Unscrew door and move 1/4" lower.
  • If there is a gap between top strap and upper doorframe, move door 1/4" higher.

Door Installation

installation video image
Installation icon Difficulty Moderate
Installation icon Steps 04
Installation icon Time Required 1-2 hours
Installation icon Sections 01
Installation icon Flags 00

Parts

  • Gun Dog Pet Door
  • Two 1-1/2" wood screws

Tools

  • Tape measure
  • Pencil
  • Drill
  • Jigsaw
  • Door framing materials
  • Silicone caulking

The Heavy Duty Dog Door® and Big Dog Door™ are installed on the outside of a house door or a garage door.

Step 1 Measure Pet Height

  • To find correct height of the hole for your dog, measure the belly height of your pet (average installation is 6"-12").
  • Mark the height in pencil on one side of your door.

Step 2 Drill Holes

  • The Heavy Duty Dog Door hole size is 12-1/2" x 17-1/2".
  • For the Big Dog Door the hole size is 16-1/2" x 25-1/2".
  • Drill a half inch hole into each corner. Then draw lines to connect the corners.
  • Insert jigsaw into drill hole and follow drawn lines to cut out hole.

Step 3 Steel and raised Panel Doors

  • If installing on a steel door, cut hole 3/4" larger, glue 3/8" pine, cedar, or plywood strips to inside of the opening.
  • If installing on a raised panel door, cut hole in center of door 3/4", glue 3/8" pine, cedar, or plywood strips to inside of the opening to cover styrofoam and install trim to inside/outside of door surface.

Step 4 Hollow Core Doors

  • If installing in a hollow core door, use four strips of wood the same width as the hollow between the panels in your door.
  • Position the wood so that they are flush with the edges of the hole.
  • Either glue, nail, or screw the strips. Frame the outside/inside hole with 2" x 1/4" lengths.

Step 5 Complete Installation

  • Use silicone caulking around trim kit for added insulation.
  • To quiet door closing, staple 5/8" of the window felt to the sides and the bottom of the pet door.

Training Timid Dogs to Use the Pet Door

Whether you have an adult dog, or a new puppy, teaching him how to use a Gun Dog House Door® (GDHD) will be done the same way. When you install your dog door, make sure you measure the "rise" of your dog (the measurement from the floor to the lowest part of your dog's chest or stomach). This measurement tells you where to place the "bottom" of your dog door. The bottom of your dog door should be an inch lower than the "rise" of your dog.

If you have a puppy you will need to install the dog door one inch from the ground; and you will need to reinstall it at higher intervals as your puppy grows. Another option is to take an educated guess as to how tall your dog will eventually be, install the dog door at the appropriate height, and construct a "puppy-ramp" so your puppy can reach the dog door and go through it comfortably.

Once the frame of the GDHD door is installed in a wall or door, leave the GDHD off at first. Have someone stay inside with your dog while you go outside. Call your dog through the "hole" (door frame without the GDHD). When he goes through and comes to you, praise him lavishly and give him a treat. Now have the person inside the house call him through the "hole." When he gets to them, they should praise it and offer a treat as well. Do this at least 3 times and no more than a dozen. After this, your dog will know there is a hole in the wall or the door especially for him.

Step 1: Leave the GDHD off the cut opening for one full day. Encourage him to use his opening by not letting him use the "real" doors. Instead, you use the real door and say to your dog, "Go to your door!" pointing in the direction of his dog door. You may need the help of someone inside to "help" the dog find his new door. After a half a dozen times, your dog should like this new game! If you have a very young puppy, do not expect them to learn "Go to your door" for many weeks or months; still give them the command in a happy voice, and have someone inside show them where their door is every time. It sometimes helps if you are outside (after going through a real door) and someone else helps your dog or puppy find the doggie door as you call him from outside.On the second day, install the GDHD.

Step 2: Now, you will need to repeat the same exercise as when you first sent your dog through the "hole." But this time, the person on the same side of the door as the dog will need to "push" the GDHD open for him. Each time the dog goes through the door, push the GDHD less and less for him. It is important that the dog gets used to the feel of the GDHD on the back of his head so once your dog has begun going through the door, let go of the GDHD so he feels it on his head and body as he goes through the door. Eventually the dog will need to push the GDHD by himself and dogs are usually hesitant to do this at first. He will probably put his nose down by the bottom of the GDHD and wait for the GDHD to move (after all, it has up to now). At this point, push the GDHD slightly so that your dog can see it is a moveable object, let the GDHD bounce back to the closed position. The best way I can explain it is that you are "poking" GDHD using short, quick pokes. This gives the dog a glimpse of an opening and encourages him to poke the door himself.

Step 3: At this stage, some dogs begin going through the door with ease, others become quite excited, but still haven't figured out that they can push the door open. If your dog will not push the door open by himself yet, remove the GDHD and install a piece of carpet onto the opening. You want the carpet to have a least a _” opening on the sides and bottom. The dog should feel more comfortable pushing the carpet on its own. After 2-3 days, install the GDHD and with our enthusiastic encouragement and praise, your dog should be able to push the GDHD now with no problem.

Videos

Gun Dog "Heavy Duty" Dog Door



FAQ

Q: What are the differences between the Gun Dog doors?

A: The Gun Dog Easy Dog Door is lighter than the others because the hinges aren't spring loaded and there are no magnets to assist with closure; this makes it easier for smaller dogs and maybe cats to use the door. The Gun Dog Heavy Duty dog door has a rigid door that includes a warranty covering chewing damages. This is the original door that was created by Gun Dog to address all the issues the owner of the company ran into while operating his kennel for large lab retriever dogs.The Gun Dog Big Dog Door is the same as the heavy duty door, but it just offers a larger flap size of 15" x 23". The first of three models, Gun Dog Easy Dog Door is the lighter versionCovering chewing damages with a rigid flap is the Gun Dog Heavy DutyLastly is the largest version this brand has to offer, Gun Dog Big Dog Door

Gun Dog Easy Dog Door         Gun Dog Heavy Duty           Gun Dog Big Dog Door

Q: Do the Gun Dog doors come with locking covers?

A: No, the Gun Dog Doors do not come with locking covers. However, you can purchase a closing cover and you can lock this cover by drilling a 1/'2" hole through the cover and wall on the inside and inserting a short dowel. Or you can purchase one of the guillotine doors and mount that on the side opposite the door as a closing cover.

Q: Can I use the Gun Dog doors for just a regular house installation?

A: Yes, a Gun Dog door may be installed in a home, however, kennel dog doors, like Gun Dog, are usually rigid because the flaps must be durable enough to withstand constant wear and tear. This durability has not been seen in flaps made out of vinyl, but it does make them very noisy so installation in a home might not be advisable.

Where can I purchase replacement flaps?

Unfortunately, we do not sell replacement flaps for Gun Dogs. If you need a replacement, part you will need to order directly from the manufacturer. Be sure to also check out our full selection of dog supplies and related products.

Is there a double flap model available?

Many pet owners like dual flap pet doors since they are more energy-efficient. The Gun Dog pet door does not have a double flap design, but the Ruff Weather pet door and the Petsafe Extreme Weather pet door does.

How much does shipping cost?

Shipping is calculated at checkout.

Warranty

Gun Dog House Door® Co.

The Heavy Duty Dog Door®, Big Dog Door™, Easy Dog Door™ is covered by a limited lifetime warranty. We warrant this product to be free of defects in materials or workmanship for the life of your dog. Damage caused by accident, improper installation or abuse is specifically excluded from this warranty. Gun Dog House Door® Co. is not responsible for any incidental or consequential damage resulting from use of this product. Normal wear and tear excludes the hinges from warranty. Customers are responsible for all shipping costs.

Partial returns and/or damages will not receive full credit. Items damaged through USE or due to return shipping damage will receive partial or no credit. Should you decide that you wish to refuse receipt of an item when delivered by UPS, USPS, FedEx or common carrier and legitimately ordered the product, credit will be issued minus any shipping custom fees and charges.