To mount the NONOMO® at a ceiling is the most flexible and cheapest possibility. You can exactly fix the hammock whereever you like, e.g. ABOVE your couch or ABOVE your bed.
Use a percussion drill to drill a hole with a diameter of 12 mm. Insert the dowel into the hole and screw in the eyebolt until the thread is no more visible.
Just screw the eyebolt into your wooden beam. There is no need of using the dowel.
Please consult an expert for professional mounting.