Deep scratches in wood flooring are the type of scratches that may be caused by dog claws or by sliding heavy furniture or appliances across the floor. If the deep scratches are numerous and you have solid hardwood flooring, the best avenue is often to sand the entire flooring. For more localized scratches, the preferred technique is to fill in and color-blend the scratch.
Begin by testing the colorants in a non-visible area to determine the closest color. In needed, floor colorants can be mixed to achieve the perfect color.
If the crack is around 1/16-inch to 1/8-inch deep, fill in with the floor color marker resin.
When applying the color marker, be careful to stay within the crack.
Smooth down the wet filler.
Let the filler dry at least two hours.
For deeper or wider cracks, mix up the wood filler. Some wood fillers require you to add a time-sensitive hardener at the end.
Carefully press the wood filler into the crack.
Wipe off excess while the wood filler is still wet.
After the wood filler has dried, sand it down by hand. Avoid sanding the flooring around the scratch repair.
Tint the cured wood filler to match the flooring.