Said It Here

Why do outdoor dog beds mold in deck boxes?

Deck boxes trap moisture and humidity around large outdoor cushions, causing them to turn moldy and mildewy within weeks. Because these bulky beds cannot easily fit indoors or in the garage, owners are forced to choose between damp storage spaces or losing valuable parking room.

Overview
People affected3 accounts across 2 forums
Workarounds found6 items attempted
Community agreement5 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Storing beds sliding under the couch instead of enclosed deck boxes to let them breathe
    Did this help you?
  2. 2
    Using elevated cot-style beds for better air circulation
    Did this help you?
  3. 3
    Buying beds with removable, machine-washable waterproof covers
    Did this help you?
  4. 4
    Storing cushions in outdoor deck boxes
    Did this help you?
  5. 5
    Wrapping cushions in heavy-duty plastic contractor bags with silica packs or dryer sheets inside deck boxes
    Did this help you?
  6. 6
    Hanging cushions from the garage ceiling
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/homeowners2 people · September 2026

“I underestimated how large these cushions are and we do not really have space to store them indoors”source ↗

“Don’t really want to dump them in the garage and take up a third of a car parking space.”source ↗

sirotan88 · r/homeowners · 13 upvotes

“deck boxes have always gotten musty for me in the PNW, even the ones that claim they're waterproof.”source ↗

tautblackberry91 · r/homeowners · 1 upvotes
r/dogs1 person · September 2026

“We had an outdoor bed from Amazon, but after storing it in a deck box for about two weeks, it turned moldy/mildewy.”source ↗

JoonVanSwann · r/dogs · 1 upvotes

“The bed we do/did have is difficult to wash, so storing when not in use seemed like the best option but it might just be trapping moisture/funk and encouraging mold...”source ↗

JoonVanSwann · r/dogs · 1 upvotes

Where this came up

People with this problem also raised