The leverage of a pry bar depends on the placement of the bend or head, which will act as the fulcrum of the lever, plus the length of the bar. In general, the longer the bar, the greater the leverage.
What size pry bar do I need?
5: Pry Bars
Pry bars come in all sizes, but two carefully selected ones should get you started. Buy one medium sized S-shaped crowbar, something between 18 inches and 2 feet (46 to 61 centimeters). That will be tough enough to pull up most any interior framing wood. Also buy a smaller, flat pry bar.
Whats the difference between a pry bar and a crowbar?
crowbars, the main difference is the overall design. A pry bar is essentially a flat, thin version of a crowbar. Another thing that separates these great tools is pry bars can be adjustable, while crowbars are fixed. Below, we're going to talk about what each of these tools is designed to do.