Disney is very strict about stroller sizes in 2026, enforcing a specific rule that strollers must be no larger than 31 inches (79 cm) in width and 52 inches (132 cm) in length. To facilitate this, security checkpoints at both Walt Disney World and Disneyland often feature "measuring boxes" or painted rectangles on the ground; if your stroller does not fit within these boundaries, it will not be allowed into the park. Additionally, stroller wagons (such as the popular Keenz or WonderFold models) are strictly prohibited regardless of their dimensions. This policy was implemented to reduce congestion in the parks and improve the flow of "guest traffic," especially in high-density areas like Fantasyland. For 2026 visitors, it is highly recommended to measure your stroller at home from its widest points (usually the wheels or side pockets) to avoid the frustration of being turned away at the gate or being forced to rent a Disney-standard stroller at the entrance.