GOLF CLUB HEAD WITH LATTICES

Embodiments of a golf club head with an internal lattice structure are described herein. The golf club head can be an iron or putter-type club head. The lattice structure can have varying beam thicknesses that correlate to the effective density profile of the lattice. The effective density of the lattice structure can range between 0 g/mm3 and 0.0075 g/mm3, achieving beneficial product of inertia values for irons and a forward CG location for a putters. For irons, an Ixy product of inertia can be greater than or equal to −40 g·in2. An Ixz product of inertia can be less than or equal to −25 g·in2, resulting in improved sidespin for high and low face impacts. The lattice structure can concentrate mass into a high-toe and a low-heel quadrant or region of the iron to achieve the product of inertia values. Other embodiments may be described and claimed.