Mt dearest husband made a sewing table/ cabinet, that when open, is 5 1/2' by 4', and made an insert for the hole where the sewing machine goes if I need to use that whole dimension. The hinges that hold up part of the table are rated to carry 500# each, and there's 2!
It's on my 'list of things to do' to share photos of the whole room, because other pics were so invaluable to us, these might be to others too, just haven't gotten there yet.
The reason he made the insert was to put the machine'sideways' to use a FMQ table, but he hasn't made that yet.