How many curve boards does it take to make a complete & perfect circle? August 03, 2020 15:29 8 Curved Boards will make a complete 10.5 ft. Diameter Circle Related articles What is the difference between Frame It All 1 Inch and 2 Inch Profile Boards? How many degrees in a curve board? Can the straight and curve boards be combined to accommodate different landscape designs? How long does it take for Orders to Ship to my Location? How far does a 2'' Anchor Joint extend into the ground?