If you're having difficulty achieving a smooth finish on your interior door frames, there are a few options you can consider without having to replace the frames or undertake extensive renovations. Here are some suggestions:
1. **Sand and Smooth:** Start by sanding the rough areas of the door frames to remove any rough or uneven surfaces. Use fine-grit sandpaper and sand in the direction of the wood grain to avoid creating further damage. This can help to smooth out imperfections and create a more uniform surface.
2. **Filler and Sanding:** If there are deeper gouges or imperfections in the door frames, you can use a suitable wood filler to fill in the gaps. Choose a filler that is specifically designed for use on wood surfaces and follow the manufacturer's instructions for application. Once the filler has dried, sand the area smooth to blend it with the surrounding wood.
3. **Wood Putty:** For smaller imperfections or nail holes, you can use wood putty to fill in the gaps. Wood putty is easy to apply and can be smoothed out with a putty knife or your finger. Once the putty has dried, sand the area smooth to achieve a seamless finish.
4. **Trim Molding:** Consider adding trim molding or decorative molding around the door frames to cover up any rough or uneven areas. This can add a decorative touch to the door frames while also hiding imperfections.
5. **Paint or Stain:** Once the door frames are smoothed and any imperfections are filled, you can paint or stain them to achieve the desired finish. Choose a high-quality paint or stain suitable for interior wood surfaces and follow proper application techniques for a professional-looking result.
If you're not confident in your DIY skills or prefer to have a professional handle the job, you can consider hiring a handyman or carpenter to assist you. They can help with sanding, filling, and finishing the door frames to achieve the desired result. While it may be a small job, many professionals are willing to take on smaller projects like this.