Remodeling a Staircase built with 2 x12 Lumber

Can prefinished retro-fit stair treads from http://www.stair-treads.com be installed over existing 2x12's? Josh from Stair-Treads.com gives a quick overview using retro treads to remodel a staircase and why a new riser is needed when the new prefinished treads are installed.

This video is the first in a series of "Video Answers" to common questions on staircase remodeling and staircase improvement.

Видео Remodeling a Staircase built with 2 x12 Lumber канала stairtreads