380DA Floor Project

Discussion in 'Sport Yachts/Yachts' started by Gallf1, Nov 30, 2020.

  1. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    Hi:
    Hoping to get some feedback from fellow owners who have gone thru this:
    I am removing the original carpet from the cabin and will be replacing with vinyl plank flooring, aluminum trim around the floor hatches and solid Ash wood companionway steps.

    WTF did they use to glue the carpet down with!!?? what a pain in the ass....but slowly piece by piece it is coming up.

    My question to you all is: If I take the time to scrape all of the residual glue off of the fiberglass floor, would it be level enough to lay the new vinyl planks onto or is a plywood subfloor recommended (and if so, what 3/8" or 1/2" ply?)

    Cant complain too much I suppose when I look out my living room window at my boat in the evening.... IMG_1503[1924].jpg IMG_1504[1925].jpg IMG_1505[1926].jpg IMG_1506[1931].jpg
     
  2. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    Finally "pulled" (oscillating multi-tool, inch by inch....) all the carpet out, including the floor hatches. I think I am going to lay down a 1/2" plywood sub-floor to level it out, seal the plywood and then lay the vinyl planks over that. IMG_1507[1932].jpg
     
  3. 370Dancer

    370Dancer Well-Known Member

    Oct 2, 2006
    Florida - Alabama
    1998 370 Sundancer
    380hp MAG MPI Gen VI with V drives
    I made new floor hatches out of 3/4" ply to compensate for the lack of carpeting being wrapped around them. In order to make them flush, I also glued in composite baten strips to the bracing under the hatches. There are detailed pics on my dropbox site I have shared many times. Do you have fiberglass imperfections on the sub floor? I would think it would be easier, faster, and cheaper to grind those down rather than laying a sub floor. That's a lot of curves to match up.
     
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  4. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    Hey:
    I saw your pictures....I dont have imperfections in the fiberglass, what I have is many areas where I just cant get all the glue off and it makes it lumpy. I am going to try a heat gun and floor scraper today and see if that helps lift it. I burnt out my Harbor Freight oscillating tool trying to get it all off.

    I agree about putting down plywood (why make extra work).

    Is your new flooring "floating" or did you glue it down to the fiberglass?
    Thx!
     
  5. Mig22

    Mig22 Member

    26
    Apr 24, 2016
    Enjoying life on the water
    2000 - 340
    2001 - 340
    Current 2001 - 380
    8.1 S Horizons
    Chris-380 and dtfeld like this.
  6. Creekwood

    Creekwood Well-Known Member GOLD Sponsor

    Apr 26, 2009
    Oakville and Georgian Bay, Ontario
    '97 330 Sundancer, Raymarine C80 suite with radar, Mercury 310 Hypalon w/8hp Yammie 2stk
    2X 454 carbs w/ vDrives
  7. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    I think even 36 grit wheels will clog. The glue heats up and gets sticky just as it starts to be removed (just tried it with my Dewalt)....I also just tried a heat gun and a sharp chisel. The heat/gun chisel combo works vvveeerrrrrryyyyyy slowly and only an inch or two at a time (quickly revealing bumps and hollows in the fiberglass).

    I am thinking of just adding a 15/32" plywood subfloor right over the old glue as this will take care of not only covering over the remaining glue but it will also level out the few fiberglass imperfections I have already found, it will also help with hiding the edge transition to the vertical carpet "baseboard" as laminate flooring directly onto the fiberglass is not as high as the old carpeting and there will be a gap.

    The amount of time it takes to make the plywood template for installation will pay off as it can be used when cutting the laminate flooring plus not to mention all the dust etc that will be eliminated all over the inside of the boat from grinding and fairing the fiberglass floor!

    Bringing it up with the plywood and then the laminate flooring will hide that gap and no edge molding will be required.
     
    techmitch likes this.
  8. dtfeld

    dtfeld Water Contrails

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    Last edited: Dec 1, 2020
  9. Chris-380

    Chris-380 Well-Known Member

    Jan 20, 2019
    Pontoon Beach IL
    2000 380 Sundancer
    7.4L Horizon w/V drives
    This is on my list of things to do, maybe next winter.... looking like a headache for sure. The hard floor surface looks great, just not sure I want to go through all these issues

    Thank you for sharing, please keep this thread active with pics, descriptions and what materials you are using
     
  10. Strecker25

    Strecker25 Well-Known Member SILVER Sponsor

    Nov 20, 2014
    Rochester, NY
    2002 410DA
    Caterpillar 350HP 3126
    looks like you already used the oscillating tool but with our old boat a sharp scraper blade with the tool on the highest setting made quick work of the glue. It was the dremel brand scraper attachment. The last bits I knocked down with a random orbital and 40 grit pads

    I left the floor floating and it worked well. Occasionally I'd have to lock a piece back together but I didn't want to glue it all down. It was a much smaller boat and cabin (290DA) though, so you might need to glue a few edge pieces to keep it from shifting
     
    Chris-380 likes this.
  11. 370Dancer

    370Dancer Well-Known Member

    Oct 2, 2006
    Florida - Alabama
    1998 370 Sundancer
    380hp MAG MPI Gen VI with V drives
    floating totally. 3 pieces. snug enough to the sides that it does not move at all. If I get tired of it, or it gets damaged, I can have it out of the boat in 10 minutes, using it as a template for the replacement. You will want the floor flat. Any lumps that get traffic will eventually wear the top layer (the pretty part) off. Also, make sure the floor has some texture (i.e. not Pergo) for traction.
     
    Gallf1 likes this.
  12. 370Dancer

    370Dancer Well-Known Member

    Oct 2, 2006
    Florida - Alabama
    1998 370 Sundancer
    380hp MAG MPI Gen VI with V drives
    Touche' Go for it.
     
    Gallf1 likes this.
  13. Riptide III

    Riptide III Active Member

    697
    Dec 8, 2007
    Dartmouth MA
    1997 Sea Ray 400DA
    Cat 3116 TA
    1994 Sea Ray Laguna CC 250 Tohatsu
    :
    EE15D4D0-11F0-415B-B09D-7F5B2785A9C7.jpeg 3/8” screwed in subfloor solved everything for me!
     
  14. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    Excellent.....I was thinking 15/32" but it looks like 3/8" works too?? Probably not much difference in stiffness.
    Adapt and Overcome
     
  15. Stee6043

    Stee6043 Well-Known Member

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    This is one of those "my back hurts just reading this thread" threads! Looking good, gentlemen. I'm hoping you'll keep updating this thread with progress...
     
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  16. dtfeld

    dtfeld Water Contrails

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    Axiom 12 MFD
    Cat 3126 V-Drives
    Back, knees, shoulders, neck, elbows etc, etc etc....
     
    Chris-380 likes this.
  17. douglee25

    douglee25 Well-Known Member

    Jan 13, 2008
    Dallas, TX
    Cruisers 3575
    Twin 7.4l
    I would recommend a 1/4" - 3/8" subfloor as some others have suggested. I used 1/4" before to minimize the floor build up, maximize headroom, and cut down on the work needed around the hatches.
     
  18. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    The Bill Collector and Chris-380 like this.
  19. Riptide III

    Riptide III Active Member

    697
    Dec 8, 2007
    Dartmouth MA
    1997 Sea Ray 400DA
    Cat 3116 TA
    1994 Sea Ray Laguna CC 250 Tohatsu
    :
    It looks like your off to a good start. I used a similar rosin paper. Be careful with the screws on the port side near the fridge. If the 380 is like the 400 it is possible to hit the hull when you get near the edge. Also, on the 400 the salon a/c cooling hose is tight up under the deck. Be mindful of that. You might be able to see it under the hatch.
     
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  20. Gallf1

    Gallf1 Active Member

    122
    Sep 26, 2018
    Palm Coast, FL
    2000 Searay 380
    Mercruiser 454 MAG MPI 7.4L
    Yikes....good call..Thx!
    I definitely will take a look under hatches etc
     
    dtfeld likes this.

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