Typically, anything between 60 cm and 210 cm should suffice. For home use or hobbies, a windsock of any size will do – since these are usually set up for their aesthetic characteristics, there are no regulations set in place. Just make sure to pick a color that you won't get tired of in the near future.

How do you measure windsock?

Lay your windsock flat on a table or floor. Measure from one side to the opposite side of the throat. Take that measurement & multiply by 2, then divide by 3.14. The result will be the diameter of your windsock.

How tall should a windsock be?

Height: At a 6.0 m (20 ft) mast height, the taper of the fabric windsock from the throat to the trailing end must be designed to cause the windsock to fully extend when exposed to a wind of 15 knots (28 km/hr or 17 mph.)