36 CFR Part 1191 ABA Accessibility Guidelines, Outdoor Developed Areas - Preamble

1011.5 Fire Rings, Grills, Fireplaces, and Wood Stoves

This section requires fire building surfaces to be 9 inches minimum above the ground, and cooking surfaces to be 15 inches minimum and 34 inches maximum above the ground. Where fire rings, grills, or fireplaces are constructed with raised edges or walls, the depth of the raised edge or wall is required to be 10 inches maximum. Fire rings with double walls or insulation on the sides are recommended to prevent burns.