Cushion covers

[Thistledew]

I have some square sided foam to make cushions for DS's high chair, and will be covering them with a pvc oilcloth.

Would it be best to use a separate strip of fabric for each edge, or can I use one piece to go all the way round (less cutting and sewing)?

Also, any tips for setting up my sewing machine for that weight of fabric?

Many thanks

Bumpity?

Any tips please?

TIA

I think a seam around the side would sit nicer. You might find that the oilcloth doesn't bend very well so you need to seam to turn a corner.
You'll need to use a triangular needle to stop the fabric ripping