Using HDC instead of SC because I wanted a looser stitch.
Did 20 rounds of red for the desired length, ended on a round of 36st.
Ch-4 (+2) for brim

Total time : 1.5 hr (90min)

((I actually restarted this project twice - the first time I didn’t like the way the rounds were increasing too slowly, the second time I didn’t like how stiff it was made out of SC))