Painting bannisters and spindles usually require a different type of paint to standard emulsion, especially if you’re working on wood. Use a specialised paint to get the finish you’re after, and if you’re painting in a darkly lit area, which staircases often are, consider a glossier finish to help reflect what light there is around the room. Eggshell and gloss formulas are best for interior woodwork, offering a hard-wearing and durable result.