Wood – How to fill nail holes in baseboards

One option is to replace the board.

You would need to:

1. Cut out the old board.
2. Find a board that matches the type and grain of the rest of the floor
3. Install the new board.
4. Stain it to match.
5. Buy your dog a chew toy. :)

UPDATE

You can remove most of the old board by:

1. Cutting it out with a circular saw.
2. Using a hammer and chisel (or even a flathead screwdriver) to chip out the ends.
3. Chisel out the old tongue from the groove in one of the boards still in the floor.

To fasten the new board:

1. I would apply a liberal amount of would glue to the subfloor.
2. Slide the tongue of the new board down into the old groove (that you chiseled out).
3. Put a few face nails in the new board.
4. Fill and sand the nail holes.

Pine is a difficult wood to stain under the best of situations. Pine has areas of different density, color, and resin (pitch) content. Using a product like Minwax prestain helps a bit. Follow the timing instructions carefully when using a pre-treatment. Little tips: i like to apply a liberal coat of oil based stain with a sponge brush. Let it set a few minutes, then rub it in and evenly distribute with a lint free rag. As one rag becomes saturated with stain, I use a second drier rag to finish the rub in. The wetter rag is great for distributing the color. You don't want any really wet stain remaining on your wood after the rub in. Once you get to the urethane, sand lightly between each coat with 220 grit paper to remove any dust bumps. Remove all sanding dust with a slightly damp cloth, let it dry and apply next coat. Again, I prefer a good grade sponge brush, but a good grade regular brush for oil/urethane works good for appling the urethane. Remember, thin coats, and sand between each coat.