pinks are precut studs. the color keeps them separated from the regular 8 footers. Precuts are 92 5/8". They are usually a lower grade material, since wall studs aren't usually exposed.

Why are some framing studs pink?

The pink coating can slow the spread of fire in the treated wood, giving residents valuable time to escape the home in case of fire. The coating has the ability to absorb heat when exposed to flames. The joists will also resist warping, shrinking and crowning.

Why are 2x4s painted pink?

That pink preservative protects the lumber against fire, mold, fungus and rot.