Use a Chopping Block
A chopping block provides a platform for your target logs, also called rounds. It raises the wood off the ground and provides a more efficient angle for the maul to strike. It is also easier on your back, though you do have to lift pieces to the top of the block. Often, your chopping block can come from the wood you are splitting. Select a good solid round from the largest pieces, especially a knotted one that would have been harder to split.
Look for Stress Lines
Turn a round of wood on its side and examine the grain. Often, especially if the wood has seasoned, you can see lines or cracks that indicate where the wood is already under stress. Wood has a tendency to split best along such lines and you can target them when you swing.
Proper Stroke
Position your feet square with your shoulders and line up the swing by placing the maul at the intended contact point to get the right distance. Place your dominant hand about 8-inches from the bottom of the maul shaft, loosely enough that it can slide freely. Grip the bottom of the shaft tightly with your secondary hand. Pull the maul up so that both hands are over your head and your elbows bent slightly. Bring the maul head down fast on the wood allowing your dominant hand to slide along the shaft until it reaches your secondary gripping hand.
Use Additional Equipment
When using a maul, wear sturdy boots to protect your feet and leather gloves to protect your hands. Protective goggles should be worn as well. Also, the maul will split the vast majority of the wood easily, but at times it may get stuck or you may require additional tools to split difficult pieces. A regular axe, a hand axe, a sledge and wedges can help.