An extra tall and wide pet gate must solve two separate problems: fitting your opening and providing a suitable barrier for your pet. A tall model can still be too narrow, and an extension can widen a gate without increasing its height. Measure first, then compare the exact gate and extension kit.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may also earn a commission through Walmart links, at no extra cost to you.
This is a research-based buying guide, not a hands-on test. Product details were checked against manufacturer pages on November 3, 2026. Prices, stock and seller bundles change; use the retailer links to compare current offers.
Quick comparison: match the gate to your opening
| Option | Published dimensions | Best reason to consider | Main limitation |
|---|---|---|---|
| COMOMY SG65 | 36 inches high; 29.5–48.8 inches wide | Wider indoor openings; 23.6-inch passage | 36 inches may be insufficient for jumping pets |
| Carlson 36-inch Extra Tall, black #0941 PB | 36 inches high; 29–31 or 34–36.5 inches wide with supplied setup | Narrower doorways needing a small pet door | Manufacturer excludes 31–34-inch openings; 16.5-inch passage |
Buying shortcut: For an opening above 36.5 inches, start with the wider option and confirm the extension configuration. For a narrower doorway, compare both mounting requirements and the walking space you will actually have. Neither model should be assumed to contain a climbing cat or a determined jumper.
1. COMOMY SG65: a wider walk-through option
COMOMY lists the SG65 with a steel frame, pressure mounting, double lock and auto-close. Its manufacturer page describes use in doorways, hallways and at the bottom of stairs. The listed box includes three extension panels and wall cups. Check the manual for the correct panel arrangement at your measured width.
Consider it if: you need a wider room divider and prefer a larger walk-through opening. Skip it if: your pet already clears a 36-inch barrier, or your mounting surfaces cannot support the required installation. The manufacturer page showed sold out when checked; retailer availability may differ.
Compare COMOMY offers on Amazon
2. Carlson 36-inch Extra Tall: check the fit gap
Carlson’s black #0941 PB has a small pet door and includes a 4-inch extension. Its specifications explicitly exclude openings between 31 and 34 inches, despite the headline 29–36.5-inch range. The manufacturer also states that wall-mounting hardware is required; do not treat it as automatically suitable for a no-drill installation.
Consider it if: your doorway falls within a supported interval and you want a separate small-animal opening. Skip it if: your opening falls in the excluded interval, you need a wider passage, or your small pet must also stay behind the barrier. Match the exact model and color before ordering.
Compare Carlson offers on Amazon
Amazon vs Walmart: compare the complete kit
A cheaper listing is useful only if it contains the gate and mounting parts your doorway needs. Our Amazon buttons open product searches so you can check the exact model and available sellers. The Walmart button opens a retailer search, not a guaranteed matching product.
| Check | What should match at both stores |
|---|---|
| Model and size | Model number, height, color and supported width intervals |
| Included parts | Extension panels, wall cups and required fixing hardware |
| Total cost | Gate, extra extensions, delivery and applicable tax |
| Purchase protection | Seller identity, return window, return shipping and warranty eligibility |
Compare pet gate offers at Walmart
No fixed price or cheapest-store claim is provided because matching live checkout totals have not been verified.
How to measure an extra tall and wide pet gate
- Measure at the mounting points. Record the opening at the floor, above the baseboard and where the upper pads or brackets will sit. Uneven trim can change the fit.
- Check extension intervals. Do not assume every width between a listing’s minimum and maximum is supported. Compare your measurement with the manual’s configuration chart.
- Measure your walking route. The overall gate width is different from its door opening. Consider laundry baskets and routine access.
- Assess gaps. Check bars, side gaps, the bottom gap and any small pet door against the animal you need to contain. Do not force a pet through to test fit.
- Check mounting surfaces. Confirm that the frame, wall or banister arrangement is permitted by the manufacturer. Never improvise extensions or stack gates.
Mounting and daily checks
For the top of a staircase, choose a model whose instructions explicitly permit that installation and follow its hardware-mounting requirements. A pressure-fit doorway gate should not be assumed suitable. A bottom crossbar can also create a trip hazard.
After installation, test the latch and check that the frame stays stable using the manual’s procedure. Recheck fixings regularly and after an impact. Supervise initial use. If your pet climbs, jumps, gets caught or pushes the gate loose, stop using that arrangement and reassess the barrier.
For more installation help, see our tension pet gate setup guide and wall mount pet gate guide. For much wider spaces, use our widest pet gate buying guide.
Frequently asked questions
Is a 36-inch gate tall enough for a large dog?
Height alone cannot answer that. Consider the dog’s jumping, climbing and pushing behavior, the frame and mounting, and the manufacturer’s guidance. A gate is unsuitable if the dog can defeat it.
Does extra wide mean the walking door is extra wide?
No. Extensions generally increase the barrier’s overall span. Check the separate walk-through opening measurement before buying.
Can I add an extension from another brand?
Use only extensions the manufacturer approves for the exact model. Similar-looking connectors do not establish compatibility.
Which store has the lowest price?
Compare the same model and complete kit at checkout. Shipping, missing extensions and return costs can change the better purchase.