The P-28 was built during 1955 - 1973 up to construction number 536.

The P 28 has been built in many different versions. In the beginning all hulls and superstructures were built in mahogany and had fractional rigging. At the end of the 50s a masthead rig replaced the fractional rig and the design of the main window was improved to two individual windows. As early as 1963 the revolutionary GRP hull was introduced. At the same time the hull was made a bit wider.

In 1972 the transom was developed adding on her length from 8.61 m / 28' 3'' to 9.04 m / 29' 8''. The deck was from 1972 covered with teak as a standard and the toerail was made in teak in stead of mahogany. The biggest markets for the P 28 were USA and Sweden. The first 100 boats were all sold to the USA. The P 28 is still today a sought after model.