length as your center width measurement (74.5″) attach borders to two opposite sides. cut the remaining strips to your measurement + 19″ (93.5″). attach borders to the two remaining sides.
for a 14″ border, cut 10, 14.5″ strips across the width of the fabric. sew these together in two sets of two and two sets of three. cut the shorter strips to your top measurement (74.5″) cut the longer strips to your measurement + 28″ (102.5″). sew the shorter strips onto two opposite sides first, and then sew on the longer strips.
note this quilt is susceptible to wavy borders because of the bias trimmed edges. for more help getting your border 