No standards is the standard Making sense of the selection
Iron lofts vary between manufacturers as well as between different models from the same manufacturer. But even when the lofts of two separate manufacturers are the same, differences in CoG often mean they don’t behave the same.
Both these #7 irons have 29° of loft. However, iron A has a CoG higher and closer to the face, making it better suited to good ball strikers who want the freedom to shape their shots. Iron B has a CoG lower and more towards the rear of the clubhead, making it better for average golfers who need help launching the ball higher and further.
So much to consider
When deciding on a new set of irons, we need to make sure their loft, CoG placement and head design are right for your swing. A fitting is the best way to make sense of it all.