Your irons are without doubt the most important clubs to get custom-made. We cannot emphasize how important it is. They are the determining factor in how well your shots to the greens are, and therefore, how many putts you have. It is critical to get this right.
Finding the correct length for your irons is the first criteria. Your height is largely irrelevant because your height is measured whilst you are standing vertically. However, you do not play golf standing vertically, but rather in a bent over position. As such the length of your irons is relative to your bent over position, where you can efficiently produce the correct rotary motion. Everyone has their own natural body position. Which can change as we get older and your back strength deteriorates.
Once the length is determined, shaft flex and material type are considered.

Shaft type is relative to the weight of the shaft. Shafts are now available in light, medium and heavy weights. Material can be either graphite or steel. Graphite is lighter than steel and can assist you in producing longer shots, but due to its nature, can result in a wider shot dispersion then steel. Steel is more consistent in distance, accuracy and control.
Shaft flex changes the relative height of the golf shot, as a more flexible shaft creates more spin, creating aerodynamic lift and therefore more height. Stiff shafts produce lower spin rates resulting in lower ball flights.
Lie angles are based upon the sole angle at impact. To get your shots to be as accurate as possible, we want the sole of the club to be flat on the ground as you contact the ball. If the sole contacts the ground towards the toe, the ball will naturally want to fly to the right of the target. If the sole make contact towards the heel of the club, it will tend to want to fly to the left of target.  Once the length, weight, material and flex of shaft have been determined, the rest of the process is relatively easy.
 We will get you to play shots off a lie board which will produce a mark on the sole of the club. This mark helps us in determining the correct lie angle of your irons. By using fitting clubs with various lie angles, we can fine tune the lie angle to suit you.
Head design is next with head design a factor that does affect ball flight. Heads that are designed with a cavity back and have an undercut design in the rear (to help the ball get into the air) and are of a more offset appearance, can be more stable through impact (increased moment of inertia).
Smaller heads, commonly known as blades or muscle back irons, tend to be less stable and fly lower.
 We will assess which one works best for you.
 Grips size is important to get right, as this impacts how are effective your hands and wrist combination action is. If the groups are too big, it will limit your hand and wrist action. If the grips are too small, it will tend to encourage more hand and wrist action.