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Suction cups or sill: which window perch holds more?

On paper, suction cups. K&H says its nine suction-cup perches hold up to 50 lb and its sill model supports 40 pounds.

Rather not stick anything to glass? That Deluxe Kitty Sill with Bolster measures 14 by 24 in.

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With no preferences selected: K&H Deluxe Kitty Sill with Bolster — Leopard Print is one option to compare.

No hands-on testingMethod and sources

K&H Deluxe Kitty Sill with Bolster — Leopard Print · first with a product link

Model / item: 100213405
  • Dimensions: 14”x24”.
  • Mount type: Window sill.
What to note:

Machine-washable cover: Yes.

View at K&H Pet Products

If you choose At least 50 lb for weight capacity, the first option with a product link becomes K&H EZ Mount Window Perch Hammock.

10 models compared; 10 have a product-page link.

The picks

5 options to compare

Compare the details that matter to your setup.

An option to compare

K&H Deluxe Kitty Sill with Bolster — Leopard Print

Dimensions: 14”x24”.

Model / item: 100213405

Key details

  • Mount type: Window sill.

What to note

Machine-washable cover: Yes.

Dimensions: 14”x24”Machine-washable cover: YesMount type: Window sill
See all 4 specs
Dimensions14”x24”
Machine-washable coverYes
Mount typeWindow sill
Weight capacity40 lb

4 of 4 specs available · source checked September 26, 2026 · Source ↗
K&H Pet Products · Product page checked September 26, 2026

View at K&H Pet Products
Weight capacity: At least 50 lb

K&H EZ Mount Window Perch Hammock

Dimensions: 29”L X 13.5”W X 9”H.

Model / item: 100553012

Key details

  • Machine-washable cover: Yes.

What to note

Mount type: Suction cups.

Dimensions: 29”L X 13.5”W X 9”HMachine-washable cover: YesMount type: Suction cups
See all 4 specs
Dimensions29”L X 13.5”W X 9”H
Machine-washable coverYes
Mount typeSuction cups
Weight capacity50 lb

4 of 4 specs available · source checked September 26, 2026 · Source ↗
K&H Pet Products · Product page checked September 26, 2026

View at K&H Pet Products
Also compare 3

K&H EZ Mount Window Perch

Dimensions: 29”L X 13.5”W X 9”H.

Model / item: 100553011

Key details

  • Mount type: Suction cups.

What to note

Machine-washable cover: Yes.

Dimensions: 29”L X 13.5”W X 9”HMachine-washable cover: YesMount type: Suction cups
See all 4 specs
Dimensions29”L X 13.5”W X 9”H
Machine-washable coverYes
Mount typeSuction cups
Weight capacity50 lb

4 of 4 specs available · source checked September 26, 2026 · Source ↗
K&H Pet Products · Product page checked September 26, 2026

View at K&H Pet Products
Also compare 4

K&H EZ Mount Kittyface Window Bed — Gray Kitty Face

Mount type: Suction cups.

Model / item: 100213600

Key details

  • Weight capacity: 50 lb.

What to note

Not listed by the maker: dimensions.

Machine-washable cover: YesMount type: Suction cupsWeight capacity: 50 lb
See all 4 specs
Machine-washable coverYes
Mount typeSuction cups
Weight capacity50 lb
DimensionsNot listed by the maker

3 of 4 specs available · source checked September 26, 2026 · Source ↗
K&H Pet Products · Product page checked September 26, 2026

View at K&H Pet Products
Also compare 5

K&H EZ Mount Window Bed — Tan

Weight capacity: 50 lb.

Model / item: 100213413

Key details

  • Mount type: Suction cups.

What to note

Not listed by the maker: dimensions.

Machine-washable cover: YesMount type: Suction cupsWeight capacity: 50 lb
See all 4 specs
Machine-washable coverYes
Mount typeSuction cups
Weight capacity50 lb
DimensionsNot listed by the maker

3 of 4 specs available · source checked September 26, 2026 · Source ↗
K&H Pet Products · Product page checked September 26, 2026

View at K&H Pet Products

Comparing K&H Deluxe Kitty Sill with Bolster — Leopard Print · K&H EZ Mount Window Perch Hammock

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The facts that differ

Choose up to three models to compare side by side.

1 identical spec shown. Details that do not apply to these models are omitted.

Published specification comparison
SpecK&H Deluxe Kitty Sill with Bolster — Leopard PrintModel / item: 100213405No preferences selected.K&H EZ Mount Window Perch HammockModel / item: 100553012No preferences selected.
Dimensions14”x24”29”L X 13.5”W X 9”H
Machine-washable coverYesYes
Mount typeWindow sillSuction cups
Weight capacity40 lb50 lb

K&H Deluxe Kitty Sill with Bolster — Leopard Print

Model / item: 100213405

No preferences selected.

Dimensions
14”x24”
Machine-washable cover
Yes
Mount type
Window sill
Weight capacity
40 lb

K&H EZ Mount Window Perch Hammock

Model / item: 100553012

No preferences selected.

Dimensions
29”L X 13.5”W X 9”H
Machine-washable cover
Yes
Mount type
Suction cups
Weight capacity
50 lb

K&H Deluxe Kitty Sill with Bolster — Leopard Print

View at K&H Pet Products

K&H EZ Mount Window Perch Hammock

View at K&H Pet Products

Compare all 10 models

— = no verified listing yet. The published order is independent of links.

All models and their decision specs
ProductHow it comparesKey specCompareAction
K&H Deluxe Kitty Sill with Bolster — Leopard Print
Compared with K&H EZ Mount Window Perch Hammock: dimensions, 14”x24” vs 29”L X 13.5”W X 9”H.
Model / item: 100213405		Dimensions: 14”x24”View at K&H Pet Products
K&H EZ Mount Window Perch Hammock
Compared with K&H Self-Warming Window Lounger Cat Perch: dimensions, 29”L X 13.5”W X 9”H vs 23 X 12 inches.
Model / item: 100553012		Dimensions: 29”L X 13.5”W X 9”HView at K&H Pet Products
K&H EZ Mount Window Perch
Compared with K&H Self-Warming Window Lounger Cat Perch: dimensions, 29”L X 13.5”W X 9”H vs 23 X 12 inches.
Model / item: 100553011		Dimensions: 29”L X 13.5”W X 9”HView at K&H Pet Products
K&H EZ Mount Kittyface Window Bed — Gray Kitty Face
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100213600		Machine-washable cover: YesView at K&H Pet Products
K&H EZ Mount Window Bed — Tan
Weight capacity: 50 lb; Mount type: Suction cups.
Model / item: 100213413		Machine-washable cover: YesView at K&H Pet Products
K&H EZ Mount Window Kitty Sill Double Stack
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100213402		Machine-washable cover: YesView at K&H Pet Products
K&H EZ Mount Window Kitty Sill Quad Stack
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100544928		Machine-washable cover: YesView at K&H Pet Products
K&H Deluxe Kitty Sill with Bolster — Leopard Print
Compared with K&H EZ Mount Window Perch Hammock: dimensions, 14”x24” vs 29”L X 13.5”W X 9”H.
Model / item: 100213405
Dimensions: 14”x24”
View at K&H Pet Products
K&H EZ Mount Window Perch Hammock
Compared with K&H Self-Warming Window Lounger Cat Perch: dimensions, 29”L X 13.5”W X 9”H vs 23 X 12 inches.
Model / item: 100553012
Dimensions: 29”L X 13.5”W X 9”H
View at K&H Pet Products
K&H EZ Mount Window Perch
Compared with K&H Self-Warming Window Lounger Cat Perch: dimensions, 29”L X 13.5”W X 9”H vs 23 X 12 inches.
Model / item: 100553011
Dimensions: 29”L X 13.5”W X 9”H
View at K&H Pet Products
K&H EZ Mount Kittyface Window Bed — Gray Kitty Face
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100213600
Machine-washable cover: Yes
View at K&H Pet Products
K&H EZ Mount Window Bed — Tan
Weight capacity: 50 lb; Mount type: Suction cups.
Model / item: 100213413
Machine-washable cover: Yes
View at K&H Pet Products
K&H EZ Mount Window Kitty Sill Double Stack
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100213402
Machine-washable cover: Yes
View at K&H Pet Products
K&H EZ Mount Window Kitty Sill Quad Stack
Mount type: Suction cups; Weight capacity: 50 lb.
Model / item: 100544928
Machine-washable cover: Yes
View at K&H Pet Products
10 catalog models

How the comparison works

Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.

Source dates appear with each link below. A source date does not confirm today's price or stock.

Finder methodologyReport a correction
Sources for all 10 models
  • K&H Deluxe Kitty Sill with Bolster — Leopard Print: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Kittyface Window Bed — Gray Kitty Face: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Bed — Tan: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Kitty Sill Double Stack: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Kitty Sill Quad Stack: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Kitty Sill Single Level: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Perch: Source 1 ↗ · September 26, 2026
  • K&H EZ Mount Window Perch Hammock: Source 1 ↗ · September 26, 2026
  • K&H Self-Warming Window Lounger Cat Perch: Source 1 ↗ · September 26, 2026
  • K&H Window Lounger Kitty Sill — Single Level: Source 1 ↗ · September 26, 2026

Start with a sill or a clear pane of glass

K&H’s Deluxe Kitty Sill with Bolster uses a window-sill mount. Its EZ Mount perches use suction cups. The mounting choice decides which part of your window must accommodate the perch, before the resting surface or appearance becomes useful to compare.

Follow the exact glass or sill preparation and attachment instructions. We have compared K&H’s mounting descriptions without loading perches on household windows; a capacity label does not resolve the condition or fit of your installation.

Read the load limit for the perch you actually mount

The Deluxe Kitty Sill with Bolster carries a 40 lb limit; the EZ Mount Window Bed carries a 50 lb limit. Maker limits across these perches span 40 to 50 lb. Neither figure confirms that your particular window attachment supports that load.

Keep the capacity attached to the selected perch and follow its mounting guidance before use. A heavier capacity is not a substitute for sufficient mounting area or the maker’s attachment instructions.

Surface dimensions and cover care need their own checks

Dimensions are available for 4 perches, including the Deluxe Kitty Sill, the EZ Mount Hammock and the Self-Warming Window Lounger. The other designs need a separate check of usable resting area and window clearance before purchase.

Every perch identifies a machine-washable cover. That describes the cover, not the frame or suction cups. Remove and wash it according to the model’s care directions, with the mounting parts handled separately.

Before you buy

Will suction cups hold on any window?

Not necessarily. Each model has its own glass, mounting-area and install needs, and a weight rating doesn't promise the perch will stay put on your window, so follow K&H's instructions for the exact perch before your cat uses it.

Why do most perches show no size?

Only four pages gave one: the two EZ Mount Window Perch models at 29 by 13.5 in, 9 in tall, the Self-Warming Window Lounger at 23 by 12 in, and the sill model. Ask K&H for the platform size of the other six before planning a window.

Can I wash the whole perch?

K&H says the cover is machine washable on all ten; the frame and mounts are a separate matter, so follow K&H's steps for taking the cover off first.