Golf Irons: How to Read 5-PW, 4-PW and Single Irons

Reading 5-PW and 4-PW: what a set includes

A set labeled 5-PW contains the 5, 6, 7, 8 and 9 irons plus the pitching wedge, six clubs in all, and a 4-PW set adds the 4 iron. Gap and sand wedges are usually sold separately. A single iron lets you replace one lost or damaged club or add a gap-filling club. When replacing one, match the maker, model, shaft, flex and hand orientation to the rest of the set.

Lofts have become stronger over time, so a modern 6 iron may have 24 to 26.5 degrees of loft where older sets had 30 or more. A club with the same number can fly farther but may leave a bigger gap to the wedges. The degree figure in the title tells you the real loft, and three- to four-degree steps are normal within a set.

Forged or cavity-back, steel or graphite: feel versus forgiveness

Cavity-back irons move weight to the edges of the head, so off-center hits lose less distance, and they suit most amateurs. Blade or muscle-back irons give a purer feel for skilled ball strikers but punish mistakes. Forged heads are shaped from a single piece of steel and feel softer to many players, while cast heads are poured into a mold and allow more varied designs.

Steel shafts are heavier and steadier, which suits faster swings. Graphite shafts weigh less and help slower swings, and they are common in women's and senior sets. Flex choices run from light and ladies through senior and regular to stiff and extra stiff. Check hand orientation, and note that women's sets are usually shorter and lighter.

Questions about Golf Irons: How to Read 5-PW, 4-PW and Single Irons

What does PW mean in an iron set?

PW stands for pitching wedge, the highest-lofted club in most iron sets. A set labeled 5-PW has the 5, 6, 7, 8 and 9 irons plus the pitching wedge. Gap and sand wedges, which come after it in loft, are usually sold separately.

Can I mix single irons into a set?

Yes, but match loft, length and shaft flex to the neighboring clubs. Different makers use different lofts for the same number, so a 6 iron from another model may fly a different distance. Read the degree figure rather than assuming.

What is the difference between forged and cast irons?

Forged heads are shaped from a single piece of steel and often feel softer. Cast heads are poured into a mold, which allows complex shapes and weight positions, and are common in forgiving designs. Feel and forgiveness matter more than the process alone.