Most of us, use the floor (not carpeted) to pin our quilts. Tape down the back (right side facing floor), tape down ~ smooth and tight, but not stretched. Followed by batting, smoothed out. Finally top, centered on other two layers. LQS suggested to use your fist (fingers in and heal of hand down) to measure the distance apart of your pins, saves time from physically measuring. Better to over-pin, then having fabric shift. I also use bent quilters pins.
Good luck and cannot wait to see your completed project.
