That's the way my Grandmother quilted. After the quilt is sandwiched and the top is attached to one of the boards and the bottom is attached to the opposite board, the sides are rolled up to a comfortable working distance between the rolls. This should be the center of your quilt showing. Then you quilt from the center out in all four directions. Each side is unrolled as necessary to quilt.
If you have chairs, only two boards are needed for attaching the top and bottom of quilt. The chairs are used to rest these two boards on. If suspended from the ceiling, then you need 4 boards, 2 to rest the other two on (by clamping with C clamps or any other means of immobilizing them.) These two side board had holes every couple inches and my grandmother used a peg to hold them in place.
I hope this helps.