US
dog

Dog Door for Sliding Glass Door

  • Dog Gate
  • 75 pounds
  • Aluminum
  • Sliding/Folding
4.2/ 5 on Amazon133Amazon ratings3.5ProductDome score
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYour sliding door track falls between about 75.6 and 80 inches tall and you want to avoid cutting the door.

Reasonable for a large dog and a compatible sliding glass track, but confirm your exact track height and glass thickness before buying since inserts like this do not adjust far outside their rated range.

View current price on Amazon →

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ProductDome scorecard

How it ranks among the 109 dog gates we track

3.5/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.4★4.2

4.2★ across 133 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 689 ratings2.7

133 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score0.0

Modest tracked demand last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 109 dog gates we track - how the scorecard works · full dog gates data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

An aluminum-framed dog door insert built to slide into a sliding glass door track, adjustable from 75 3/5 inches to 80 inches tall, rated for dogs up to 75 pounds. It fits large door openings without cutting into the glass or the wall.

Because it is a sliding-door insert rather than a cut-in door, the height range is the number that matters most: measure the actual track opening before ordering, since 75 3/5 to 80 inches is a narrower band than many standard track heights. The 1 inch maximum compatible thickness also limits it to slim door glass or screen tracks rather than thick insulated glass units.

  • Adjustable 75 3/5 to 80 inch height range
  • Aluminum frame
  • Up to 75 lb dog capacity
  • Sliding/folding closure

Who it's for

Homes with sliding glass patio doors where owners want a dog door without permanent cutting, and whose door track falls inside the stated height and thickness range. Not suited to swinging doors, walls, or tracks outside that window.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Adjustable height fits a range of sliding door tracks
  • No cutting into glass or wall required
  • Rated for large dogs up to 75 pounds
  • Aluminum frame construction
What to check first
  • Fits doors only within the 75 3/5 to 80 inch height range
  • Maximum 1 inch door thickness limits compatibility

Performance notes

Sliding-track inserts work by replacing one panel of track with a framed unit holding the flap, so fit depends on the track height and thickness matching the frame within its adjustable range. An aluminum frame is more rigid than plastic under repeated flap use.

Specifications

Branddog
Dimensions & fit
Weight Capacity Maximum75 pounds
Dog Breed SizeLarge, Medium
Construction & materials
Material TypeAluminum
Frame MaterialAluminum
ColorWhite
Compatibility & installation
Maximum Compatible Thickness1 inch
Smart Home CompatibilityNot Smart Home Compatible
Included components
Unit Count1
Other details
Closure TypeSliding/Folding
Pet TypeDog
Best Sellers Rank#37,767 in Pet Supplies (See Top 100 in Pet Supplies) #113 in Dog Doors
ManufacturerNIAOMAOGOU
Model NumberNIAOMAOGOU
Customer Reviews{'ratings_count': '133', 'stars': '4.2'}
AsinB0F9WN96JG

How it compares

This product against the closest alternatives we track in dog gates.

ProductAmazon ratingRatingsProductDome score
Dog Door for Sliding Glass DoorThis product4.2 / 51333.5 / 5
Regalo Safety 29-38.5" Baby Gate for Doorways & Bottom of StairsRegalo4.5 / 5172,4004.5 / 5
Safety 1st Easy Install Walk Thru Baby Gate for Doorway With DoorSafety4.5 / 522,1004.5 / 5
Evenflo Expansion Walk-Thru Room Divider Baby GateEvenflo4.6 / 59,4004.5 / 5
PetSafe Never Rust Wall Entry Pet DoorPetSafe4.6 / 59,1834.4 / 5
Frequently asked

Questions about the dog dog gates

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What dog sizes does it support?

Listed for large and medium dog breeds up to 75 pounds.

Does it require cutting the sliding door?

No, it installs as an insert within the existing sliding door track.

What is the maximum door thickness it fits?

Up to 1 inch.