The final size of the doily depends upon the weight of thread and the size hook used. I have found that a doily made with size 30 thread and a No. 10 hook has been the most popular size and weight. A doily made with size 10 (bedspread weight) thread and a No. 6 hook frames nicely in an 8 x 10 frame. I have made this doily with size 100 thread and a No. 16 hook—using a magnifying glass!