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Watchdog Security Pet Door - Locking Cover - White

"We love our Watch Dog Security Pet Door! We travel quite a bit and take our pets with us. We feel very secure knowing taht our Watch Dog Security Door is in place and securely locked. It's easy to operate, strong, and aesthetically appealing!" - The Hales

Watchdog Security - Product #: WD-11WS-LGDL
  • SALE: $195.00
  • List Price $245.00 Save $5000 (21%)

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Why Buy From Pet Pro Supply Co?

Need Help? See our FAQ/Help Page

The best way to secure a pet door is with a Watchdog Security Locking Pet Door Cover.

Are you worried about the security of your home with an unsecured pet door, or worse, have you avoided installing a pet door because of the possible security risk? Watchdog Security Pet Doors has developed an answer. You will never have to worry about the security of your pet door again.

This product is a heavy-duty 12-gauge steel frame and cover with a combination lock that goes OVER your existing pet door, on the outside of your home. When you want the dog to have access, the Watchdog Security Pet Door Locking Cover can be left open. When you want security, the steel door can be closed and the combination lock engaged. Now your pet door is secure and no longer a security risk. Simple!

Please Note: The Watchdog Locking Pet Door Cover does not come with a pet door. It goes over an existing pet door, to secure it. The images showing a pet door with the Watchdog Security cover are only to demonstrate how well the cover works with existing pet doors. Please note also that Watchdog Security Covers DO NOT work with pet doors built into sliding glass door inserts.

Key Features
  • Currently available ONLY in white; the cover can be easily painted over to match a wall or door.
  • The combination lock is set by you to a unique security code. Don’t forget it! There’s no way to unlock this steel cover without that code.
  • There is a special version with special bolting hardware for installation on a (human) door and another version for installation on a wall.
  • The Watchdog Security Pet Door Locking Cover is securely fastened with heavy hardware designed for door or wall use.
  • A durable UV powder coated finish resists scratching, rust, and the elements.
  • When you want your pet to have access, you leave this security door open. You have a choice of opening directions. "Left" means that the hinges are on the left when outside looking at the security door. "Right" means that the hinges are on the right side. However, this neat design allows you to lift the steel cover off its hinges when the door is open so you can set it aside entirely. When the door is closed, the cover hinges are locked in place by the steel frame.

Watchdog Pet Door Locking Cover Installation Guide

Note that the manufacturer recommends that the door be bolted onto the outside (not the inside) of your door or wall for a few reasons:

  • Mounted outside, the potential intruder is immediately confronted with a steel barrier and is likelier to not even attempt anything. Those bolts, by the way, can’t be removed from the outside.
  • The outside of a wall is typically much stronger than the drywall interior side. It’s better to have something sturdy to bolt into. Of course, if you can hit the studs from the inside that’s going to be sturdy as well.
  • Because of the typical locking cover on the inside of the pet door, more clearance is needed for the steel door. There may not be enough room for an inside install.


Plan on mounting on the outside if a wall installation and either side for a solid-core door provided you have clearance for the pet door locking cover on the inside install.

For vacation homes and long vacations when you can just lock it and forget it, this solution just can’t be beat.


Below is a sizing chart listing which of the most popular door manufacturers the Watchdog Security Pet Door cover fits. You may identify the pet door you own to see if it is on this chart. Otherwise, simply measure the dimensions of your door to see if it fits within one of the 3 door size parameters. Most pet doors purchased in the USA will fit with one of our 3 sizes.

Large Watchdog Locking Security
“Large” – Interior Opening of 11 X 17 1/2 with an Exterior Frame of 15 1/2 X 21 1/2 and 1/2″ Depth
Manufactor Flap Size Flap Dimension Outside Frame Dimension
Ideal “Original” Extra Large “10-1/2″ X 15″ “12-1/2″ X 18″
Ideal “Original” Large “9” X 15″ “10-1/2″ X 18-1/8″
Ideal “Draft-Stopper” Medium “6-5/8″ X 11-1/4″ “8-1/2″ X 13-1/4″
Ideal “Draft-Stopper” Extra Large “10-1/4″ X 15-3/4″ “12-1/4″ X 17-1/8″
Ideal “Deluxe Aluminum” “ Extra Large “10-1/2″ X 15″ “11-3/4″ X 17-1/2″
Ideal “Ultra Flex” Medium “6-5/8″ X 11-1/4″ “8-5/8″ X 13-5/8″
Ideal “Ultra Flex” Extra Large “10-1/4″ X 15-3/4″ “12-1/4″ X 17-3/8″
Endura Flap Medium “8” X 15″ “11-1/2″ X 20″
PetSafe Wall Entry Aluminum Medium “9-5/8″ X 14-3/8″ “12-3/4″ X 17-1/2″
PetSafe Wall Entry Aluminum Large “11-7/16″ X 18-1/16″ “14-3/4″ X 21-1/2″
PetSafe Freedom Large “10-15/16″ X 17-5/8″ “12-3/4″ X 19-5/8″
PetSafe Plastic & Extreme Large “15-1/8″ X 26-13/16″ “12-5/8″ X 20″
PetSafe Classic Large “10” X 15″ “12-3/4″ X 18-3/4″
PetSafe Quick Fit Medium “8” X 11″ “12-1/8″ X 17-1/2″
PetSafe Ultimate Large “10-3/8″ X 15-3/4″ “15-1/2″ X 21″
Pet-Corp Large “11” X 16-3/8″ “14-1/4″ X 20-3/8″
Hale Medium “8-1/2″ X 12-1/2″ “11-9/16″ X 15-3/8″
Hale Tall Medium “8-1/2″ X 16″ “11-9/16″ X 19-1/16″
Hale Large “11” X 16″ “ “14-1/16″ X 19-1/16″


X-Large Watchdog Locking Security
“XLarge” Size – Interior Flap of 12 X 24 with an Exterior Frame of 16 1/2 X 28 and 1/2″ Depth
Manufactor Flap Size Flap Dimension Outside Frame Dimension
Endura Flap Large “10”X 19″ “13-9/16″ X 24″
Pride Large “11-1/2″ X 17″ “15-1/2″ X 19-3/4″
Hale Tall Large “11” X 19-1/2″ “14-1/16″ X 22-9/16″
Hale Tall Large + “11” X 23-1/2″ “ “14-1/16″ X 26-9/16″
PetSafe Quick Fit Large “10-1/2″ X 14-1/2″ “15-3/4″ X 23-1/4″


XX-Large Watchdog Locking Security
“XX-Large” – Interior Flap of 16 X 26 with an Exterior Frame of 20 1/2 X 30 and 1/2″ Depth
Manufactor Flap Size Flap Dimension Outside Frame Dimension
Endura Flap Extra Large “12” X 23″ “15-5/8″ X 28″
PetSafe Freedom Extra Large “14-7/16″ X 25-1/8″ “16-3/8″ X 27-1/4″
PetSafe Plastic & Extreme Extra Large “15-1/8″ X 26-13/16″ “16-1/8″ X 27-1/2″
PetSafe Ultimate Extra Large “13” X 18-3/4″ “18-3/4″ X 23-3/8″
PetSafe Classic Extra Large “13-3/8″ X 23″ “16-1/4″ X 27-1/4″
Pride Extra Large “14-1/2″ X 19-1/2″ “18-3/4″ X 22-3/4″
Ideal Original Super Large “15” X 20″ “18” X 24″
Plexidor Large “11-3/4″ X 16″ “16-1/2″ X 19-1/4″
Pet-Corp Extra Large “14-1/8″ X 23-5/8″ “17-1/2″ X 27-1/2″
Hale Extra Large “14” X 19-1/2″ “17-1/16″ X 22-9/16″
Hale Extra Large + “14” X 23-1/2″ “17-1/6″ X 26-9/16″

Questions & Answers

Ask a Question
  • How heavy is the xxl door?

    Hi, here's the weight of each Watchdog security pet door: Large: 13 lbs, XL: 18 lbs, XXL: 23 lbs. Thank you!

  • What does the other side of the door look like? I don’t see any pics of that.

    The Watchdog Steel Security Pet Door Cover is a 12 gauge steel w/ steel lock. The MOST secure metal dog door security cover & fits on top of all major brands! This is only meant to mount directly on the exterior of your existing doggy door, so the back of it is flat and will be flush to whatever surface you mount it to.


Watchdog - Ships FedEx or UPS Ground from Phoenix, AZ

  • When there is no Back Order in place, doors take about 1-2 business days before they are shipped.
  • Additional time is required for transit, per the shipping map below:Watchdog Shipping Map


LTL (less-than-truckload) Freight is used when shipments are 120 lb+ or for oversized equipment, which results in a truck with a large container delivering your order. Our freight carrier will contact you once your order makes it to the distribution center closest to the delivery address specified, and set up an appointment time for delivery.

Pet Pro Supply Co. Free LTL Freight Shipping - Curbside Delivery

Our standard Free Freight Shipping option for LTL deliveries is curbside, which is to a delivery to a Commercial Address and does not include a liftgate. If your order is to be shipped freight, you will have the option to specify whether the item will be delivered to a Residential, Limited Access, or Commercial address. If there is no option to select a shipping location, then this cost is already included in the price.

We strongly recommend adding the optional Liftgate for all deliveries to locations without a loading dock or forklift.

Freight Delivery Locations

This option specifies whether the delivery location is a Commercial, Residential, Residential Business, or a Limited Access address.

  • Commercial - These addresses are those defined by our freight carriers and/or zoned by local municipalities as commercial sites. Typically these addresses are zoned as commercial real estate or are used exclusively for business. Most commercial sites have tractor-trailer access and a loading dock.
  • Residential - If the address used a residence, select this option. This includes Apartment/Condo complexes and dormitories.
  • Residential Business - Any business being operated from a home, apartment, or other dwelling where people live on the premises is considered to be a Residential Business.
  • Limited Access - Locations where deliveries are restricted, limited, or very far from a distribution center. Examples Include:
    • Place of Worship
    • Restricted Areas - Secure Research Facilities, Military Bases/Installations, Correctional Facilities, Government Buildings
    • Farms, Ranches, and Rural Areas
    • Recreational Areas - Camps, Parks, Fairs, Carnivals, etc.
    • Individual Storage Units
    • Sites - Convention Centers, Construction Sites, Mines
    • Schools and Universities
    • Commercial establishments not open to the walk-in public during normal business hours

Freight Liftgate

A liftgate is a hydraulic lift that is attached to the back of a truck that can lower freight to ground level. Freight carriers prevent their drivers from assisting with the unloading of heavy equipment other than using a liftgate to ground level. We highly recommend any delivery address without a loading dock, select this option.

However, please know that for certain very long items, such as Kennels over 6' in length, a Liftgate will not be able to bring the entire order down to ground level. Please have the necessary manpower available to receive your items with limited delay to the driver. 

Customer Reviews

Based on 10 reviews
Sturdy, well made

Excellent security door. Installed inside house and secured all the heavy screws directly to wall studs. We didn't want to go outside to lock it every time. Dog door is double flap wall Endura flap dog door, and it fit fine, exactly according to the Watchdog website's size specifications.

Great Door but...

The door is strong and I am happy about that. My only comments are that the combination lock is very sensitive and you need to have the numbers lined up almost differently each time, sometimes you have to lower the numbers or raise them to be in line to open the door. Also, I would have liked to be able to pick a different color. Only white was available.

Fantastic product

5 out of 5 here, Door is super sturdy and the real deal. 100% recommend and well worth it. Easy install

Would recommend

Solid heavy door that installs just as directed. Excellent quality. I love it

Excellent product!

We have two very large dogs, and wanted to secure our doggy door. This solid steel door is perfect! Easy to install...makes us feel much safer when away from home! And Pet Pro Supply had it on out doorstep in just 2 days! Very happy...

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