Earlier models, with the exception of the 26 and 27 were offered as semi-custom. The details of hull layup, interior and deck construction and design could be modified by the buyer. It has been estimated that more than half were modified to one extent or another from the base design that was offered. Some decks were klegecell-cored, some were balsa. Some hulls were solid glass, some were foam or balsa cored. Some cored hulls were cored only above the waterline, some all the way. Similarly, tankage and rigging details were allowed to be modified by the buyer.
Thanks to Steve Wolfe, a Soverel builder from 1975-1978 for this information.
| Name | LOA (ft) | First Built | Last Built | Rig |
|---|---|---|---|---|
| SOVEREL 26 | 26 | 1976 | 1977 | Masthead Sloop |
| SOVEREL 26 (1975) | 26.2 | 1975 | — | Masthead Sloop |
| SOVEREL 27 | 26.52 | 1986 | 1987 | Fractional Sloop |
| SOVEREL 28 | 28.5 | 1961 | 1970 | Masthead Sloop |
| SOVEREL 28 MORC | 28.58 | 1963 | 1970 | Masthead Sloop |
| SOVEREL 30 (1969) | 29.87 | 1969 | 1973 | Masthead Sloop |
| SOVEREL 30 (1979) | 29.75 | 1979 | 1987 | Fractional Sloop |
| SOVEREL 30 (MK II-III) | 30 | 1974 | — | Cutter |
| SOVEREL 33 (1968) | 32.92 | 1968 | 1970 | Cutter |
| SOVEREL 33 (1983) | 33 | 1983 | 1990 | Fractional Sloop |
| SOVEREL 36 (1965) | 36 | 1965 | — | Masthead Yawl |
| SOVEREL 36 (1975) | 35.83 | 1975 | 1987 | Masthead Sloop |
| SOVEREL 36 (1975) CB | 35.83 | 1975 | 1984 | Cutter |
| SOVEREL 37 | 37 | 1971 | 1978 | Staysail Ketch |
| SOVEREL 38 | 38 | 1968 | 1970 | Masthead Sloop |
| SOVEREL 39 | 38.42 | 1984 | 1988 | Fractional Sloop |
| SOVEREL 41 | 41.33 | 1971 | 1977 | Masthead Sloop |
| SOVEREL 48 | 48 | 1973 | 1987 | Staysail Ketch |
| SOVEREL 50RC | 49.67 | 1985 | 1988 | Fractional Sloop |