I'm one of the lucky ones to have a rather big diningtable...and extra high to.
The quilt I'm working on right now is the biggest I ever made, 98" by 102".
I glue a matchbox on the middel of the table, fold the layers of fabric in four to find the centre and then one by one place them on top of each other on the table. centre on the matchbox.
DH helped me to put the layers on the table.
Then I tack the quilt with very small tags.
I start quilting from the centre and work out