Repairing Guides

how to repair a rotted boat floor

by Mckenzie Schamberger Published 3 years ago Updated 2 years ago
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Part of a video titled Repairing rotted boat floor (part 2) - YouTube
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Down quite a bit before cutting the floor with the circular. Saw my main concern was to make sure weMoreDown quite a bit before cutting the floor with the circular. Saw my main concern was to make sure we had enough space between the surface of the floor. And the top of the solid core hull.

Full Answer

How do I replace a floor in a boat?

What You Will Need

  1. Plywood. Boat owners have a few types of boat floor replacement plywood to choose from. ...
  2. Marine vinyl or fiberglass flooring. Despite its durability and resilience, plywood is naturally vulnerable to moisture no matter what treatments are applied.
  3. Circular saw and tape measure. ...
  4. Marine epoxy resin. ...
  5. Hand drill. ...
  6. Safety gear. ...

How to repair a soft spot in a boat floor?

Tips for Repairing a Soft Spot on Your Boat

  1. Add Support. When noticing a soft spot on your boat, you need to add more support to the structure to reinforce it as much as possible.
  2. Protect Yourself. Whenever working on a boat, especially when using epoxy, you should always wear gloves and mask. ...
  3. Do Not Mix the Materials Before Use. ...
  4. Buy Your Supplies Early. ...
  5. Cut Test Holes. ...

How to gelcoat a boat floor?

Things You’ll Need

  • polyester marine grade filler
  • Rags
  • gel cote
  • pigment
  • sanding aid
  • Soap
  • Acetone
  • Methyl ethyl ketone peroxide (MEKP)
  • Paintbrush
  • Gelcoat spray gun

More items...

How to fix rotted boat floor [repair guide]?

  • Boat Hull Patching, Concrete Patching, Wood Filler, Sandable And ...
  • Honeycomb Edge Closeout - Epoxy Syntactic Foam
  • Chemical Resistant, Saltwater/Freshwater Resistant
  • Excellent Adhesion To Wood, Steel, Aluminum, Soft Metals, Concrete, ...

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How do you fix rotten floor in a boat?

2:138:28Cheap fix for a rotten boat floor (Part 1 of 2) Installing new plywoodYouTubeStart of suggested clipEnd of suggested clipAnd this plywood is all three quarter-inch pressure-treated. It's the boat the floor was reallyMoreAnd this plywood is all three quarter-inch pressure-treated. It's the boat the floor was really quite good it was just soft in one spot. The size of maybe twice the size of a cigarette package.

How do you fix a spongy boat floor?

If the problem is due to fiberglass weakening, you'll want to sand the affected area until the soft spot is noticeably lower than the surrounding area. In fact, in certain spots, you might sand all the way through the fiberglass.

How do you repair a fiberglass boat floor?

4:0823:35How to: Repair Fibreglass Boat Floor - YouTubeYouTubeStart of suggested clipEnd of suggested clipI think gluing and filling filler in with our boat coat resin. See that that that's what I'd callMoreI think gluing and filling filler in with our boat coat resin. See that that that's what I'd call tomato sauce or a little bit thicker.

What kind of wood do you use to replace a floor in a boat?

Marine plywood is a great sheet material that can be easily cut using both hand saws and basic power tools. Marine plywood is often used to build boat interiors and to replace flooring during boat renovations.

What can I use for boat floor?

The 5 Best Types of Boat Flooring MaterialsWood. It goes without saying that wood has been the material of choice for boat and ship builders for thousands of years. ... Linoleum or Vinyl. ... Specialty Paints. ... Canvas. ... Carpeting.

What causes soft spots in boat floors?

Hi Jeff, Normally, a soft spot is caused when the foam beneath the fiberglass deck gets compressed. The fiberglass usually pops back into place but the foam remains compressed. Soft spots can be caused several ways. The most common is body weight being bounced up & down in the same spot.

How do you Epoxy a boat floor?

11:2314:39Boat Transom and Floor Rebuild - Using the Epoxy ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipThey're glass coders and basically what you'll do is you'll just get like a painters tray. Full ofMoreThey're glass coders and basically what you'll do is you'll just get like a painters tray. Full of mixed up epoxy resin or you can use polyester if you're just coding wood for sealant purposes.

How do you repair a fiberglass boat hull from the outside?

Step-by-Step Guide To Repair Fiberglass Boat Hull From the OutsideStep 1: Grind around the hole. ... Step 2: Clean the damaged area. ... Step 3: Back up the hole. ... Step 4: Prepare the patch. ... Step 6: Apply the layers of roving. ... Step 7: Apply the fiberglass cloth. ... Step 8: Allow the patch to dry and remove irregularities.

How do you repair fiberglass boat deck?

0:068:40Deck Repairs Part 2: Replacing the Core - YouTubeYouTubeStart of suggested clipEnd of suggested clipBefore. The first step in the process is to use a permanent marker. And straightedge to mark theMoreBefore. The first step in the process is to use a permanent marker. And straightedge to mark the outline of the area to be cut.

Can you use regular plywood on boat floor?

Cold molded boats are made all the time with strips of regular plywood protected by layers of fiberglass. As long as you glass them properly they will never be exposed to moisture and should be fine. You can use exteriior plywood. The glues are the same as in marine ply.

How thick should plywood be on a boat floor?

3/4 would seem plenty on a boat that size, it's usually 1/2 or 3/4. I used 3/4 on the floor of my CC it's very solid and is what I would use on your project.

What can be used instead of marine plywood?

WHAT IS THE ALTERNATIVE TO MARINE PLY? Unless the plywood will be fully submerged in water for extended periods of time, most projects exposed to moisture do not require marine ply. Birch plywood is both a suitable and economical alternative to marine ply for these applications.

How do you fix soft spots on the floor?

2:5310:49How To Fill Hollow Spots Inside Vinyl Plank Flooring LVP Laminate And ...YouTubeStart of suggested clipEnd of suggested clipAnd one is just straight needle just like that which is perfect. You can actually go and cut thisMoreAnd one is just straight needle just like that which is perfect. You can actually go and cut this out attach this right here you can unscrew the top whenever we're filling.

How do I know if my boat has a soft spot?

Look around all deck penetrations, hatches, wells, center console,inspection plates, tank cover plate etc. Take small steps and put all your weight on on foot at a time. If you find one, keep probing around untill you get an idea as to size. Also check transom for rot on these older models.

What is boat carpet?

Marine carpets are carpets that are designed especially for boats. This is advisable for all types of boats owing to their specific properties. There is no other safer or more durable alternative to marine carpets. The boat will be less slippery and provide safer adventure.

How do you repair fiberglass?

Here's how.Drill a tiny hole at each end of the crack. This will stop the crack from extending any further.Examine the crack. ... Wipe the crack with a dry rag to make sure it's clean and dry. ... Fill the crack with a fair amount of fiberglass epoxy resin, using a plastic applicator. ... Let the epoxy dry for a day.

Is The Rot Worth Your Time

People who are just getting their feet wet (pun intended) when they Begin Boating, often look at “low cost of entry” boats. Those boats most likely come with issues. 90% of the problems I find with boats comes from prior neglect. While we can’t do anything about the previous neglectful owner, we do have to deal with the repercussions.

Different levels of Rot Require different Repairs

While the Sea Ray had been neglected for a long time and the boat’s floor rot was extensive, not every boat is going to be that bad. I’ve personally bought several boats with rotted floors since. Some were quick and easy repairs. A couple had stringers that started to rot on top. One was repaired without breaking the fiberglass skin.

What Are Your Rotten Circumstances

There are more ways to make repairs to a rotted boat floor, but it really does depend on what your goal is with the boat. Are you planning on keeping the boat for the rest of your life, or just making it last for a few more seasons.

A Great Rot Resource

A great resource that I have used is The Rot Doctor. He does sell products as well, but he also has very detailed ways of dealing with rot and the science behind it. He’s out of stock on CPES at the time of this writing, but the links above will get you great pricing on Amazon.

What is the best way to fix a boat floor?

4. Using the Wrong Materials. The best thing you can do when fixing a boat floor is to use epoxy. You do need to make sure that you use an epoxy that is waterproof. Ones that come in two parts are also stronger and preferred. Keep in mind that they do make marine grade epoxy, which should always be your first choice.

What happens if a boat floor rots?

The boat floor is arguably the most important part of your boat. If it rots, it can spread to the rest of the boat and create a terrible, dangerous mess. There are ways that you can repair a rotting boat floor, but doing so may make the problem worse if you don’t know how.

Why is my boat rotting?

The likely cause of the rotting is mold from the dampness of the boat, so the mold must be cleaned as thoroughly as possible to stop it from spreading to healthy flooring. 2. Leaving Rot Behind. After you have cleaned the area, you will want to remove all of the damaged wood.

Why is the boat floor not meant to have nails?

A boat floor is not meant to have nails in it and doing so weakens the structure. It also creates spaces where water can get deeper into the boat, the floor, and other areas.

Can you repair rotten wood on a boat?

You cannot repair the boat floor while rotten wood remains as it will only continue to rot. Once you are confident that the rotten sections have been removed, you can start to repair the floor as needed. If you have the means and resources to remove a piece of the boat floor and replace it then that is the best thing you can do for the boat.

Can you replace rotten floor?

Replacing a piece of rotting floor is the best course of action because there is no telling how bad the rotting is as it could have spread to other places not immediately visible; however, if you have no choice but to patch the rotten section, it is better to do so from under the floor (if possible).

Is The Rot Worth Your Time

People who are just getting their feet wet (pun intended) when they Begin Boating, often look at “low cost of entry” boats. These boats will most likely have issues. Prior neglect is responsible for 90% of all the boat problems I see. While we can’t do anything about the previous neglectful owner, we do have to deal with the repercussions.

Different levels of Rot Require different Repairs

While the Sea Ray had been neglected for a long time and the boat’s floor rot was extensive, not every boat is going to be that bad. I’ve personally bought several boats with rotted floors since. Some of the repairs were simple and quick. One couple had stringers which began to rot.

What Are Your Rotten Circumstances

There are more ways to make repairs to a rotted boat floor, but it really does depend on what your goal is with the boat. Do you plan to keep the boat or make it last for a few seasons?

A Great Rot Resource

A great resource that I have used is The Rot Doctor. While he does sell products, his methods of dealing with rot are very thorough and scientific. He’s out of stock on CPES at the time of this writing, but the links above will get you great pricing on Amazon.

Preventing Boat Floor Problems

If you’re reading this guide without having extensive problems, then remember that old saying: an ounce of prevention is worth a pound of cure. You can save yourself a lot of headaches down the line if you simply work to prevent some of the most common boat floor problems. That includes:

Boat Floor Repair & Dry Rot

With a boat floor made out of wood, dry rot will be one of the primary problems you have to deal with. First, acquire a Git-Rot kit for yourself. This kit includes a two-part liquid epoxy that soaks into wood via capillary action. This is especially effective on loose wood and end grain materials that might be exposed.

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Not Cleaning First

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Check out boat flooring on Amazon. If you spot a rotting boat floor, you need to take action by scrubbing it down. The likely cause of the rotting is mold from the dampness of the boat, so the mold must be cleaned as thoroughly as possible to stop it from spreading to healthy flooring.
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Leaving Rot Behind

  • After you have cleaned the area, you will want to remove all of the damaged wood. This will be very easy to do because it will literally be crumbling. You cannot repair the boat floor while rotten wood remains as it will only continue to rot. Once you are confident that the rotten sections have been removed, you can start to repair the floor as needed. If you have the means and resources t…
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Nailing The Boat Floor

  • This is a mistake that many people make without even realizing they are doing it. A boat floor is not meant to have nails in it and doing so weakens the structure. It also creates spaces where water can get deeper into the boat, the floor, and other areas. Even a gap as small as a nail head can wreak havoc on an otherwise healthy boat so when replacing flooring, avoid nailing altogeth…
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Using The Wrong Materials

  • The best thing you can do when fixing a boat floor is to use epoxy. You do need to make sure that you use an epoxy that is waterproof. Ones that come in two parts are also stronger and preferred. Keep in mind that they do make marine grade epoxy, which should always be your first choice. When you purchase through links on our site, we may earn comm...
See more on doityourself.com

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