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Lock-n-Block Sliding Door Gate


Cardinal Gates

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SKU #: XT1053
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About the Brand

Cardinal Gates Lock-n-Block Sliding Door Gate

The Cardinal Gates award-winning Lock-n-Block Sliding Door gate is the only sliding glass door gate available on the market today patent pending! This gate won the 'Most Innovative Product' award from the Juvenile Product Manufacturers Association (JPMA). The Lock-n-Block was also chosen as 'Best Product of the Year' by FitPregnancy magazine. Finally, a gate which allows moms to feel comfortable opening the sliding door when an infant is around (never leave infants unattended). The Screen Manufacturers Association (SMA) states screens are not designed to keep children from falling out. The Lock-N-Block sliding door gate adds the extra layer of protection recommended by the Consumer Products Safety Council (CPSC). It securely clamps onto the functional panel of a sliding panel door and fits most standard tracking doors 1" to 1.5'' wide. Also ideal for pets, the Lock-n-Block Sliding Door Gate also provides a much-needed visual to help prevent dogs from running into the glass or screen door. No more worries about the dog bolting through the screen door! Enjoy use of the screen door, open or closed, simultaneously with the Lock-n-Block Sliding Door Gate.


  • Sliding Door Gate
  • Great for kids and pets
  • Award-winning gate
  • Can close screen door while gate is installed
  • Gate swings open in both directions
  • No tools required to install
  • Constructed of steel
  • Sleek, rugged steel construction
  • Color: White
  • 1 Year manufacturer's warranty against defects

Product Details:

  • Product Type: Safety gates
  • Material: Metal
  • Intended Placement: Doorway
  • Adjustable Width: Yes
  • Mounting Type: Pressure mounting
  • Includes Installation Kit: Yes
  • Pet Compatible: Yes
  • Outdoor Use: No
  • Assembly Required: Yes


  • Overall: 30" H x 24" W x 0.75" D
  • Overall Product Weight: 12lbs

Cardinal Gates Lock-n-Block Sliding Door Gate

Weights & Dimensions

  • Overall: 30" H x 24" W x 0.75" D
  • Overall Product Weight: 12lbs


Product Type: Safety gatesFinish: White
Powder Coated Finish: YesMaterial: Metal
  • Material Details: Steel
Hardware Material: Zinc-coated steelNumber of Items Included: 1
Age Range: 6-24 monthsLifestage: Baby
Fire Resistant: YesNon Toxic: Yes
Intended Placement: DoorwayAdjustable Width: Yes
Mounting Type: Pressure mountingDoor Included: Yes
  • Door Type: Swinging
One Hand Opening: YesFreestanding: No
Lockable: Yes
  • Auto Lock: No
  • Lock Type: Handle
Memory Fit Feature: Yes
Auto Close: NoIncludes Extensions: No
Includes Installation Kit: Yes
  • Installation Kit Pieces: All necessary hardware included
Pet Compatible: Yes
Outdoor Use: NoProduct Care: Wipe clean with soap and water
Country of Manufacture: Imported 


Assembly Required: YesTools Needed: No tools required
Additional Parts Required: No 


Product Warranty: 1 Year manufacturer's warranty against defects 


ASTM Compliant: YesCPSIA or CPSC Compliant: Yes
JPMA Certified: Yes 

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Cardinal Gates Lock-n-Block Sliding Door Gate

When you buy a Cardinal Gates Lock-n-Block Sliding Door Gate online from AllModern, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Cardinal Gates Part #: here. If you have any questions about your purchase or any other Safety Gates product for sale our customer service representatives are available to help.Whether you just want to buy a Cardinal Gates Lock-n-Block Sliding Door Gate or shop for your entire home, AllModern has all of your design needs covered.

About the Manufacturer

Cardinal Gates has been dedicated to making homes safer since 1992. Over the years the company has expanded from the original Hearth Guard to a full line of gates and protective products for children and pets. As the gold standard in their industry, they are driven by a strong belief that they are the best on the market in terms of safety, ease of installation, attractiveness and durability. As innovators in the field of child safety products, they design all of their products and own a variety of patents on their gates and safety pads. These products are carefully inspected by hand in Newnan, Georgia, ensuring that each item meets their exceptionally high standards before shipping. Additionally, all of their gates are rigorously tested to earn the seal of certification by the Juvenile Protection Manufacturers Association.
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Cardinal Gates Lock-n-Block Sliding Door Gate

from New Port Richey, FL – Verified Buyer– Top 1000 Reviewer

This gate was perfect for my needs, but I must say I can't speak to the use in the application it is made for. I needed a gate that would fit a very narrow (24) doorway, and I modified this one to make that work. That said, it is sturdy, locks nice and tightly, swings easily, and I have no doubt it would serve it's intended purpose for use with a sliding door quite well. I would recommend this gate.

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Great Find!!

from Ravenna, OH – Verified Buyer

We have an 11th floor condo with a slider out to the balcony and were concerned about the cat going out there. The gate fits perfect in the slider so we can get fresh air, but the cat can't get out. It is easy to open and close and lock.

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OUR SKU # XT1053

Lock-n-Block Sliding Door Gate is also sometimes listed under the following manufacturer numbers: LNB