When I used to spray baste my large quilts I would use my dining room table, any time you baste inside Please remember to open windows and ventilate, anyway:
1. Sandwich your quilt, by drappimg over any table
2. Work out all lumps and bumps on both sides til smooth
3. Start with front of fabric facing you, lay over table so middle of quilt is on edge of table , and pull back just the top layer ALL the way to the middle
4. Spray about 4-6 inches of your batting.
5. Slowly and carefully smooth down your top fabric over the batting where you sprayed
6. Now repeat next 4-6 inches I til you reach the end of one side of your top, then do other side of top, again starting from the middle.
7. Once your top is fully basted flip over and repeat with backing
TAKE your time basting and don't feel like the whole quilt has to fit on flat surface the whole time, shift it from side to side as you spray baste, just like you would on an ironing board. This method is much easier than it sounds and works great when you don't rush.
Good luck. I hope this helps you
