Building code
CHECK YOUR LOCAL CODES FOR RAIL HEIGHTS AND SPINDLE SPACING.
Finally the question of code compliance is a local matter. A municipality may have its own specific requirements.
Local building inspectors and code compliance officers often have different interpretations of the International Residential Code (IRC), International Building Code (IBC), or the older ICBO, CABO or SBCCI codes.
IT IS THE CUSTOMER'S RESPONSIBILITY TO CONTACT THEIR LOCAL BUILDING INSPECTOR OR CODE COMPLIANCE OFFICER FOR INFORMATION ON LOCAL REGULATIONS.