I found a site that listed the "materials needed" to make this bag, one of the listed items is 5" x 15" piece of foam core board or cardboard after reading this i can say the bag is suposed to be 16 1/2" WIDE with a gusset a little larger than 5", because this item is used to make the bottom stiff so it doesn't sag (I use plasic canvas in my bags). Which would leave the measurment of 14 1/2" for the HEIGHT!!