US
dog

Dog Door for Sliding Glass Door

  • Dog Gate
  • 75 pounds
  • Aluminum, Glass, Plastic
  • Lock
4.0/ 5 on Amazon171Amazon ratings3.4ProductDome score
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYour sliding door opening falls within 75.8 to 80.3 inches and your dog is under 75 lbs

A practical no-cut option for sliding glass doors, provided your opening falls within the 75.8 to 80.3 inch adjustable range and your dog is under 75 lbs.

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ProductDome scorecard

How it ranks among the 109 dog gates we track

3.4/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.4★4.0

4.0★ across 171 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 689 ratings2.8

171 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 insert panel that turns an existing sliding glass door into a dog door, adjustable to fit openings between 75.8 and 80.3 inches tall. Aluminum frame and glass panel rated for dogs up to 75 lbs, with a lockable flap.

This is a track insert rather than a cut-in door, so it fits into the existing sliding door frame without permanent modification to the door or wall. The telescoping height adjustment is what makes or breaks the fit, since it only spans a specific range rather than any sliding door opening.

  • Adjustable height insert, 75.8 to 80.3 inches
  • Rated for dogs up to 75 lbs
  • Aluminum frame with glass panel
  • Lockable closure

Who it's for

Owners with a sliding glass door whose opening falls within the 75.8 to 80.3 inch range and a large or medium dog up to 75 lbs. It is not sized for small dogs or cats despite appearing under a broader pet supplies category.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • No permanent cutting into the door or wall
  • Adjustable height fits a specific 75.8-80.3 inch range
  • Lockable flap when closed
What to check first
  • Only fits within the stated height range
  • Insert itself weighs 22 lbs
  • Rated for large and medium dogs, not small dogs or cats

Performance notes

The frame telescopes to fit door openings from 75.8 up to 80.3 inches tall, built from aluminum with a glass panel section, and the whole insert weighs 22 lbs once assembled. A lock on the flap lets owners secure it closed when the dog door is not in use.

Specifications

Branddog
ModelBSYTYMN02L
Dimensions & fit
Weight Capacity Maximum75 pounds
Item Weight22 pounds
Dog Breed SizeLarge, Medium
Construction & materials
Material TypeAluminum, Glass, Plastic
Frame MaterialAluminum
ColorStandard White
Compatibility & installation
Smart Home CompatibilityNot Smart Home Compatible
Included components
Unit Count1
Other details
Closure TypeLock
Pet TypeDog
Best Sellers Rank#12,638 in Pet Supplies (See Top 100 in Pet Supplies) #26 in Dog Doors
ManufacturerYGNNJY
Model NumberBSYTYMN02L
Customer Reviews{'ratings_count': '171', 'stars': '4.0'}
AsinB0GDTJW73J

How it compares

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

ProductAmazon ratingRatingsProductDome score
Dog Door for Sliding Glass DoorThis product4.0 / 51713.4 / 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 BSYTYMN02L

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

What height range does this door fit?

It adjusts to fit sliding door openings from 75 4/5 inches to 80 3/10 inches tall.

What size dog can use it?

It is rated for dogs up to 75 lbs, listed for large and medium breeds.

Can it be locked?

Yes, the closure type listed is a lock.