Straight Staircase Kit Contains riser/stringer assembly, 13 treads, 13 balusters, 1 handrail, 2 newel posts.

Adjustable to varying floor ceiling heights of 9" to 10". Size: 2.5" W x 8" L

Landing rails assemble comes with 15 Balusters, 2 rails to form upper and lower rail, and 3 Newel posts.

Two rails are 12 inches long

Comes with easy to follow instruction. Rails can be accommodated for left or right side.