sorry bout that, didn't realize the TAB key made for instant reply
Somebody..........the math doesn't add up for me
If I have a box 19.75 outside = 18.25 inside and should hold 13 frames with 3/8 left over to divide on either side of the outside frames ( 13 x 1.375 = 17.875 )
but I see posted '11 with 1-1/2 spacing', '12 with 1-3/8 spacing' and '13 with 1-1/4 spacing'
what, if anything, am I missing here ???