SANDING

Step 1: Choosing the type of sander

The most important step to take in the process of sanding hardwood staircase is choosing the type of sander that is suitable for your staircase and your home.

There are some types of sanders

1. Orbital sander is the first type, which consists of the orbital finish sander and the random-orbit sander. Orbital finish sander can be smaller and provide less motion and not so much vibration, but this type is easier to control compared to other types.
2. If homeowners value speed much more than other factors, the random-orbit sander is the ideal type because it can remove material faster, more effective since it is known for the ability to rotate in many different kinds of pattern. Plus, the random-orbit sander also has more vibration compared to the other type, which can make it more likely to slip over the boundaries and margins of the stair treads.

Step 2: Removing the initial finish

From this point, you can slide the sander across each stair. This step will end with the use of the vacuum to get rid of the debris.

Step 3: Proceeding to sand the outer parts

Next, proceed to sand the outer parts of the staircase and the rise of each step with the chosen sander. This step requires careful movements because you should avoid hitting the handrails or the walls, and then repeat the process of vacuuming to get rid of the debris.

Continue the sanding process until you remove the final part of the old finish and a new, smooth, appealing surface will appear on your staircase.

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STAINING

Step 1: Removing carpet and furniture

To prepare for the staining hardwood staircase, the carpet needs to be removed and all furniture nearby has to be placed somewhere else, as far as possible from the stair to protect them from being covered in dust.

Step 2: Stripping the stairs

Then you need to strip the stairs by using a brush to apply chemical strippers and then scrape it off with a knife.

Step 3: Removing the existing finish

Next, the sander will be used to remove the existing finish from the corners or the edges of the staircase or riser.

Step 4: Choosing the stain

Before staining, you can test your staircase by using several stain samples to see which one fits your stairs the best.

Step 5: Staining

After deciding which stain sample to use, you will need the paintbrush to apply a coat of that stain on the surface of your stair. The process of stain penetrating can take from 5 to 15 minutes, and then you wipe off the excess stain. Apply the second and third coat, if possible, and let them penetrate the wood and dry off.

Step 6: Applying polyurethane varnish

Lastly, you need to apply polyurethane varnish on your stair and let it dry within the next 24 hours, and then you remove all materials.

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REFINISHING

Refinishing hardwood stair actually includes the process of sanding, staining as mentioned above and then apply a light coat of wax on your stair’s surface and wait until it dries off, which normally take 15 minutes.