As mentioned in the overall hardwood floor Refinishing article – Wood Stairs, Steps & Staircases are complex enough to warrant their own sub-article. We’ll assume you read the prior article and thus, have basic knowledge about the wood floor refinishing process. So here, we’ll get slightly more in-depth process-wise, but not overwhelmingly so. For wood stairs, the refinishing process is the same, but the parameters shift and force the expert refinishers to accommodate certain steps (no pun intended). First and foremost are the dimensions of the step planks, which need to be cut with even more precision than usual due to the delicate nature of the fittings for stairs. If the dimensions are off even by a small margin, the steps can become safety hazards due to either splintering or uneven surfaces (causing falls).
As well as the actual installation just described, the staining of the steps needs heavy modification as well. When staining the steps, the coats of stain and “poly” are applied very carefully by hand, making the process longer and more delicate. If the sealant is applied incorrectly, it can warp the wood or make the surface uneven. See a pattern here?