← Ask This Old House · Season 12Fitting a Mattress up a Staircase; Repairing a Light-Switch in SeattleS12 · E15 · 15 Feb 2014 · 30 minNo imageFitting a Mattress Up a Narrow Staircase; Repairing a Light-Switch in Seattle← 14. Rotted Porch Post; Dealing with High Indoor Humidity16. Clawfoot Tub with Shower; Installing a Permanent Fire Escape →