So here's the daily update:
Took a 2 hour lunch and grabbed supplies:
1 sheet 4 x 8 1/2" fir underlayment: 27.00
1 sheet 4 x 4 3/4" PT (Upper Deck): 21.00
2 Cans 3M Spray Adhesive for carpet: 24.00
Total Spent: 72.00
Total So Far: 282.00 + 72.00 = 354.00 (Got all the plywood and adhesive now thou, ohh and 10.00 for a miss mixed gallon of exterior paint, happens all the time just ask!!)
Total : 364.00
Now many are saying why didnt you get marine grade, well its a special order at 75.00 a sheet. I have used it in the past on my conversions, and have found the the best "
budget" alternative is 1/2 fir underlayment. Now the trick to this is to make ALL your cuts, holes, exposed edges, then seal the entire thing with 3-4 coats of any exterior house paint. After it has dried I upholster over it, and noone ever knows the difference. The goal of this
build was to be as cheap as possible so it drove the final decision. I will note that my current rig has had this same plywood, sealed the same way for over 6years with not one stitch of a problem!! Those of you that may have a "larger"
budget however, I would not dissuade you from using marine grade!
Now the plywood was not just layed on top of the
boat and traced, actually it never even sat on it!! It was cut by laying out the entire frame, using measurement, out onto the plywood then using the trick in the photos I transferred the compound curve of the hull onto the plywood. Make sure everything is dimensional, those paying attention to the frame photos will have noted the square. If you squared your frame, and it was built of the center line of the
boat you can do the same to the deck plywood. Take your time with this, and do it by measurement not tracing, make sure to layout all of your ribs, lids, bracing, etc. This will save you gobs of time when you go to attach this all together. I even laid out bolt centers on all the ribs to speed up fabrication. More time spent on layout means less time later!! If you've done it correctly it will be a "One Cut, one drop" deal as it usually doesnt need any additional trimming if done correctly!! I posted a close up photo of the deck and frame at the bow, notice how the layout matches the position of the frame rails, this is ultimately the result of a proper layout.
The key to success here is take your time and measure 100 times if needed, and always remember to pull your measurements from a common point.
Any questions let me know!!