Awsome. Australian solution beats all my stupid ideas.
Simple and permanent.
Follow -up question is how do I create this lip -Just mat and fiberglass
using the same mat as for the stringers ?
Also do I need to reinforce the edge on cut away floor before placing it
back
on new lip ?
Thank you.
Jari

wrote in message
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The problem with floating floors is the ability the flex excessively
whichleads to your cracking.
Adding mass to the floor to prevent this will
increase the weight quite substantially most solutions is to place/replace
the stringers/beams if you have access to the underside of the floor, if
not then my way would be to cut the floor out on the outer edges, glass in
a new lip for the floor to rest on around the edges.

While you have the floor out turn it upside down glass in some stringers
useing some cardboard tube cut in half layed on the underside(now the top)
once you have done that you can test it for strength while its out of the
boat if your happy with it add glass mat and resin to the lip that you
made in the cockpit and lower it back in pushing it firmly all around the
edges add some weight and bingo floors done.

The card board tube is for form not strenght so it can be as light as you
can find. Place it roughly every eighteen inches in a box pattern across
the underside of the floor with about 1/8 inch thick glassmat and resin.
don't forget to leave a little space around the edges for your lip.The
beuty of doing it this way is the floor looks original and with a bit of
care the seam/join around the edge can be faired in and painted to hide
any marks.
Shaun
Jari wrote:
Floating I guess . Yes , there is no additional support
wrote in message
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Is the floor suported by stringers/beams or is it floating. Shaun

Jari wrote:

My daysail boat open cockpit (Tempest22) floor is making cracking
noise when I walk on it. There is small crack also.I patched the
crack with fiberglass cloth. Now I have to solve the problem to
prevent farther cracks. I 'm considering 2 options: Cover the
floor with playwood and fiberglass over- details like non skid
and glue between playwood and current flooring arise . Someone
recommended applying expendable foam to seal the playwood to
floor

Second option is to re fiberglass with cloth and several layers ,
and fill the space between hull and floor with expendable foam to
support the weight of the crew. I lean toward 2 option. please
share your suggestions

Thank you. Jari