Wood Stern seat
I built a mahogany (sealed w/ Teak stain) seat that spans from one side to the other. Our 1979 H 27 has two-rail stern pulpits ( corners?) so the seat rest on the lower rail. The lumber was 5/4s and the attachment is simple: there is a 1" by 5/4s wood strip on both sides of the rail which the seat rests on and the angle of the rail prevents the seat from for/aft movement. The is a notch in the middle of the rear most board to accomodate the aft stay. The only down side to the seat is that it is another level to climb over to get to the swim ladder. The plus side is that is adds seating in the corners as well as a nice long seat tostretch out on.Cost of wood was about $30. We later added a cushion to match our cockpit cusions. I have also seen add-on corner seats in catalogs which would add seating but not a nice long platform. They were about $80-100 each.