Hi Marguerite,

Our best practice is to measure the last years volume or volumes, and multiply that by how ever many years of growth space you want.  So for example if a bound volume is an inch long, and you want 5 years of growth space, you leave 5 or 6 inches.

Of course sometimes a magazine will increase in frequency, so these measurements are just guesstimates, but overall this works for us.

Lisa Ladd
Kresge Library
Dartmouth College
Hanover, NH 03755
603-646-3566