Originally Posted by eyes
Here are some stringers systems that some boat manufacturers use for their boats. Just in case anyone would like to switch from wood to Foam filled. They can be used as ideas. But remember, not every boat is the same. They all have diferent configurations and structural needs. You might just need to check how your original stringers were set, foam calculation, etc.
Speaking from personal exspreiance making small power boats for many years All glass boat will last for a long long time . My own boat was bult 1975 and has a glass liner under the glass floors and is as good as tha day it was fitted . solid as a rock . The company i woked for we always fitted glass top hat sa they called it . Was set on set glass and weighted down and the gunned round all the flanges, when it was hard the weights were removed and the same with the glass floor that was fitted ontop
I have replaced the complete transom in my boat bebause it was wet and really heavy . Had lot a modifications to do anyway so was cut and in the bin made a differant shape that also incorpirated a 450 mm sxtension and the first motor must have been a old 16 inch , later a 20 inch and now i have a 25 inch wood has no place in small powerboats !! you can soak it , paint it glass it anstill water will find its way in . same with foam dont use it it nothing but trouble .