Do you need a cushion on an Adirondack chair?
No. The chair is shaped to be sat in bare. Some people want one anyway.
The Adirondack chair was designed a century before outdoor cushions existed, and the tilt and the contour do the job a cushion does on a flat chair. Most owners never add one. Three reasons you might:
- Seat height. A firm 2-inch cushion raises the 15-inch seat to 17, which makes getting up easier for bad knees.
- Hot sun on a dark color. A cushion is the fix for a Black chair on a south deck.
- Looks. A striped cushion on a White chair is the porch.
What fits
A seat cushion 20 by 20 inches, and a back cushion 20 wide by 24–30 tall, or a one-piece "high back" cushion sold for Adirondack and Muskoka chairs, which is a standard size. Ties at the top go round the top slat. Anything sold as an Adirondack cushion fits this chair.
What to look for
Solution-dyed acrylic or olefin fabric, quick-dry foam, and ties. Bring it in when it rains; the chair does not care, but the cushion will.