If your smoker is hot on one side you may need to rotate your beef ribs, or switch them around to get an even heat. This is important since otherwise you won't want to move them during the whole cooking time. There is no flipping with these ribs.
Place the racks of beef ribs, bone side down and press them together from the ends. This compacts the rack. During cooking time the meat is going to shrink and you do not want to slow this process by spreading the rack out on the cooking surface.
Beef ribs will take about 6 hours to cook properly at a temperature between 225 and 250 degrees F. The best way to tell when your ribs are close to getting done is by the tenderness of the meat. Properly cooked the meat will be fork tender. Watch for this.
If you don't have a smoker you might want to ready my article on cooking Barbecue Ribs on the Grill.
