Years ago my sis gave me a gate leg table which I unfold to use for cutting then fold down one end and use the rest of the table for my machine. It folds up to 36". I won't part with it. Very sturdy and doesn't shake and vibrate when I'm sewing like the folding tables do.
Look in consignment shops, Goodwill and simular stores. Garage sales are good too. I also picked up one for my son, It was smaller and had a gouge in the top but that is easy to fix.