To refinish existing stairs a disc sander called the edger is used to sand the tops of the stair treads. The corners, nosing and risers are then hand scraped followed by orbital and hand sanding.
Rise (height) and run (length) are our first concerns during new stair installation. Ideal dimensions would be a 7″ rise with an 11″ run but sometimes when retro fitting compromises must be made. New flooring installation will often throw off the rise causing a tripping hazard. In this case we will build up the stair frame so that all treads are equal or least within 3/8″ of each other. We install from the bottom up using a stair specific adjustable template to ensure a tight fit. All treads are nailed and glued to prevent squeaks.