15 Month Baby Sensory Milestone: Stacking

Baby’s developing sensory systems allow them to play in new ways! At 15 months, their vision, tactile, and proprioceptive senses work together to help them stack two objects or blocks. This 12-15 month sensory milestone is an important sign that Baby is growing typically and gaining the skills they'll need for future development.

Tracking this milestone helps you support healthy sensory development and notice if Baby needs a little extra help.

Baby should meet this sensory milestone by 15 months:

✅ Stacks two objects or blocks