This sock is knit toe-up with a gusset and heel flap.
The pattern is written for 60sts around (at 30sts/4”) but can easily be resized by adding ribbed sections to the front and around the back.

Note After finishing the heel flap and beginning to work in the round again, the pattern suggests knitting the back of the leg in stockinet stitch until the front of the leg pattern starts a new repeat. Alternatively you can start the back of the leg at the same row as the front of the leg. This may give you only a partial rose, but may be preferable to plain stockinet rows. Your choice :-)

Direct PDF download from the blog is also available.