Fabrics & materials

Porch Swing Cushions: Sizes, Measuring and Choosing the Right Fabric

How to measure a porch swing, seat vs seat-and-back sets, and the fabric and foam that last on a porch.

By Sam K2 min read
Custom porch swing seat and back cushions in indigo fabric

A porch swing is one of the best seats in the house, until the cushion slides off, flattens or fades. Porch swings come in many sizes, and ready-made cushions rarely match yours exactly. Here is how to measure your swing, which cushions to order and which fabric and foam hold up on a porch.

Common porch swing sizes

Porch swings are usually sold by overall length, such as 4 ft, 5 ft or 6 ft. The seat inside the arms is shorter than the overall length, and it varies by brand, so always measure your own swing rather than ordering by the label. A twin-size swing bed is a different piece: it takes a mattress-style cushion; see daybed and swing bed cushions.

How to measure a porch swing

  1. Seat width: measure inside the arms, from one arm to the other.
  2. Seat depth: from the front edge of the seat to the back slats.
  3. Back height: if you want a back cushion, measure from the seat up to where the cushion should stop.
  4. Check for notches: if the arm posts or chain brackets cut into the seat, measure where they sit so the cushion can be notched around them.

Our cushion size and foam guide suggests a thickness for your swing.

Seat, back or a matching set?

  • Seat cushion only: the most common choice, especially for swings with a comfortable slatted back.
  • Seat and back set: made as two cushions in the same fabric, for a softer, more lounge-like swing.
  • Add pillows: a couple of throw pillows or a bolster at each end finish the look.

Fabric and foam for a porch

Even on a covered porch, swing cushions see sun, humidity and wind-blown rain. Sunbrella resists fading and mildew. High Density foam is comfortable for everyday sitting; on an open porch, Dry Fast foam drains water and dries quickly. Ties in matching fabric keep the cushion from sliding as you swing.

Questions about porch swing cushions

How thick should a porch swing cushion be?

3″ to 4″ suits most swings: soft enough to sit on for a while, without raising the seat too much.

Can I order just the covers?

Yes. If your foam still holds its shape, order covers only made to its size.

What is the difference between a porch swing and a swing bed?

A porch swing is a bench seat; a swing bed is deep enough to lie on and takes a mattress-style cushion. See our swing beds.

Ready to order? Use the porch swing cushion builder, or browse porch swing cushions. Every cushion is cut to within ±0.5″ of your measurements, or we remake it free.