6 Key Pool Fence Requirements That Are Standard Across the US

Minimum fence height of four feet Most jurisdictions require a fence at least 48 inches tall, following the International Swimming Pool and Spa Code or similar guidelines.

Maximum gap size of four inches Gaps in the fence must be no larger than four inches to prevent a toddler from squeezing through.

No climbable features on the outside Horizontal rails or other climbable elements are prohibited on the exterior side of the fence.

Self-closing and self-latching gates Gates must automatically close and latch, with the latch placed out of a child’s reach—typically 54 inches from the ground or on the pool side.

Secondary barriers may be required Some local codes also mandate a pool cover or door alarm as an additional safety layer.

Always verify with your local building department Call your town’s building department for exact requirements, as one wrong measurement can cause a failed inspection or a safety hazard.