All the wall clocks below come in 24 inch diameter (2 ft. diameter). Our large wall clocks are unique in that you can select the size you want in most styles. To see which size is best, cut out a piece of paper into a 24 inch circle and tape or pin it to where you want your clock. You will be able to see how that size looks in the space. If it is too small, you can go up to the next large wall clock size (30 inches) or if it is too large, try the next smaller size 18 inches. Newspaper is great to use to cut out your clock template because it is large and readily available. You can even tape your templates on the wall up and then take pictures of each size of paper clock so you can easily compare them side by side.