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? How far does a 2'' Anchor Joint extend into the ground? How long does it take for Orders to Ship to my Location? Can the straight and curve boards be combined to accommodate different landscape designs?