For the last couple years I've been dreading the project of replacing the swim platform on my 30TF.  Not really sure how to tackle it.  It must have been added on 20 years ago.  While moving a davit hardware I noticed the core was soggy in spots.   Last fall a friend replaced his on a 1955 50ft Chris Craft and he inspired me... and he gave me some of his left over teak!

I started by doing a lot measuring.  The boat is 10 feet wide at the transom.  I wanted to make something that would fit the style of the model.   The transom has a big radius to it as well.  

Here is the original after removal. 

I discussed the challenge of cutting the radius accurately with a friend who runs a custom millwork shop... he offered to do it for me on his CNC machine.  The core is made from 2  4x10 sheets of 3/4 marine ply.  Seeing as it was on the CNC machine already we decided to cut a 3/8 void out of the center area with a nice 2" border to make room for the teak.  for some reason I didnt photgraph this stage. 

I laminated the 2 pieces together with Polyurethane adhesive.  Then after curing got started on laying 1.5 oz chop matt glass.  3 layers on the top and bottom.  With sanding between each layer.  Then lots of filler to make everything smooth. 

This is the result after a the first layer of Gelcoat. 

lots more wet sanding and gelcoat to get it looking smooth.  

then installed onto boat while doing my annual haul out.  I chose t nuts to hide the hardware under the teak layer.  while I was at it I decided to ad an undermount boarding.

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All fasteners were cut oversized and filled with 3M 5200.  Then the teak trim cutting began. 55 boards everyone was trimmed several times.    Once the trimming was finished.  A big batch of System 3 epoxy adhesive was poured out and the assembly began. Then masking the edges and I used 2 tubes of 300ml and 2 tubes of 600ml Teak Decking Systems SIS 440.

The Final Result...

Very nice looking

Did you glue down the teak or is there fasteners?

I used System3 Epoxy Adhesive with Profill fiberlgass filler to adhere the teak to the fiberglass.  it is especially formulated to bond to the oily material of teak.  The boards had 3 x 1/8 blade rip down the back side to allow for additional bonding surface.  So NO FASTENERS!  

Nice!

Hey Russell.  That is insanely cool and beautiful!!  I have been meaning to reach out with an update and questions.  But that swim platform is amazing!! totally unique.  did you say an undermount ladder?  

My project is screaming to the finish, phase 1, with the motors placed in the boat and heading to Newport very soon to have them all connected and operating.  I haven't been in touch for a while and got a case of the "might as wells" and pretty much made a new boat.  will get the pics together soon.  

Really beautiful work!

the undermount ladder can barely be seen in the "Final Result" photo... look on the very left (port) side... you can see the 2 bits of crome showing. 

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