I have a pair of bistro chairs that are metal with a wire frame and have round seats. The cushions are wood (I believe) topped with foam. The seat frame is completely empty, with just a thin rim around the perimeter to hold up the cushion. They have sat out in the rain for a couple years and the wood on one of them has rotted, so the last time I sat on it, the cushion fell through.
I'm wondering whether theres any hope of fixing it. I thought about putting a couple of wood beams across the seat to hold it up, but the rotted wood of the seat is sort of rounded, so I'm not sure whether it would work to have a stiff beam underneath.
I'm open to buying new cushions, but I wouldn't know how to find the kind I need since it's such a precise thing.
My only other option is to make new cushions entirely, but I don't have a saw to cut out round wooden bases. Could this work with a hand saw?