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How To Grill Top Sirloin Steak Well Done. Before you start cooking, let the steak sit for 20 minutes at room. This method of cooking works best with steaks that are 1 inch or thicker.

160 degrees f for a job well done; How long should you cook a sirloin steak on. Flip the top sirloin fillet over using a spatula and cook the steak for the same amount of time as the first side.