Replacing Aluminum Bench Seats In Your Job Boat

Aluminum boats are often used for fishing and are popular due to their lightweight and easy transportability. However, their narrow design can make them unstable on the water. If you own an aluminum boat, you may want to consider replacing the bench seats to improve comfort and stability. This can be done by removing the old bench seats and installing new ones, or by modifying the existing seats to add storage compartments. When replacing the bench seats, it is important to consider the type of material used, such as wood or metal, and to ensure that the new seats are properly sealed and protected from corrosion. Additionally, you may want to add a waterproof coating to improve durability.

Removing old bench seats

Assess the Situation:

Before starting, it's important to inspect the bench seats and identify any unique features or potential challenges. Look for bolts, screws, clips, or other fasteners that might be holding the seats in place. Take note of the surrounding areas, such as the flooring, walls, and any nearby components that could be affected during the removal process.

Gather the Necessary Tools:

Based on your assessment, gather the appropriate tools for the job. Standard tools like screwdrivers, wrenches, and sockets might be needed to loosen and remove fasteners. You may also require a crowbar or a similar prying tool for certain steps. It's always a good idea to have a variety of tools on hand, as you may encounter unexpected challenges during the removal process.

Prepare the Work Area:

Before beginning any work, ensure that you have a clear and safe workspace. Move any items or obstructions that might hinder your access to the bench seats. If necessary, cover nearby areas to protect them from potential damage. It is also recommended to wear appropriate safety gear, such as gloves and eye protection, to safeguard against any hazards.

Loosen and Remove Fasteners:

Start by locating and loosening the fasteners that secure the bench seats in place. This may involve unscrewing bolts or removing clips and brackets. Be careful not to strip the heads of screws or damage surrounding materials during this process. If the fasteners are difficult to access, use appropriate tools to reach them without causing damage.

Carefully Lift and Remove the Seats:

Once all the fasteners have been removed, proceed to lift and remove the bench seats. Depending on their size and weight, you may need assistance to handle them safely. Pay attention to any wires, hoses, or other connections that might be attached to the seats and carefully detach them before removing the seats completely. Place the removed seats in a safe area away from the work zone.

Clean and Inspect the Area:

After removing the old bench seats, take the opportunity to clean and inspect the area. Remove any debris, residue, or old adhesive left behind. Check for any damage or corrosion that might have occurred underneath or around the seating area. Address any issues that could affect the installation of the new seats.

Prepare for New Seat Installation:

With the old seats removed, you can now prepare the area for the installation of the new bench seats. This may involve cleaning, sanding, or treating the surfaces to ensure a proper fit and finish. If necessary, make any modifications or adjustments to accommodate the new seats, ensuring a secure and stable installation.

Remember, always work carefully and methodically to avoid damage to your boat or injury to yourself. If you encounter any complex or unfamiliar aspects, don't hesitate to seek advice from a marine professional or someone with experience in boat maintenance and repairs.

Choosing the right wood

When it comes to choosing the right wood for your Jon boat, there are several factors to consider. Firstly, the type of wood you choose will depend on your budget and the desired appearance of your boat. If you are looking for an economical option, consider using pressure-treated lumber or standard construction-grade lumber such as pine or fir. While these options are more affordable, it is important to note that pressure-treated wood can be corrosive to metal boats, so ensure proper sealing. Additionally, lumber is prone to swelling and shrinking with changes in moisture, so it may require more maintenance over time.

For a more durable option, marine-grade plywood is recommended. Marine-grade plywood, such as Okoume or Douglas fir, is designed to withstand moisture and is less likely to rot. It is also stronger and more stable than standard lumber, making it ideal for boat construction. However, marine-grade plywood can be more expensive and may require epoxy encapsulation for long-lasting protection.

Another factor to consider is the weight of the wood. Heavier woods like mahogany can provide a sturdy seat but may add significant weight to your boat. If weight is a concern, consider using a lighter wood like pine or Okoume, especially if you plan to varnish or paint the wood.

To enhance the appearance of your boat, you can opt for solid wood such as mahogany or teak. These woods offer a classic look and are strong and durable. However, they may require more maintenance to prevent swelling and ensure longevity. Additionally, consider sealing your wood with epoxy, resin, varnish, or paint to protect it from the elements and prolong its lifespan.

Lastly, if you're looking for a unique and lightweight option, you can explore synthetic decking materials. These pre-finished options require less maintenance and are designed to withstand the elements.

Using foam for support

Foam is an essential component of any boat seating project, providing both comfort and support. When selecting foam for your Jon boat bench seats, it is important to consider factors such as comfort, support, and durability.

For the replacement of aluminium bench seats in a Jon boat, there are a few options to consider in terms of foam:

Closed-Cell Foam

Closed-cell foam is a type of foam where the air bubbles are sealed off from each other, making it denser and firmer than open-cell foam. It is often used in flotation equipment and marine products due to its resistance to water absorption. It also has antimicrobial properties, which help prevent the growth of mold and mildew. However, it is not commonly used for seating cushions as it is not as comfortable. If you want to use closed-cell foam for your Jon boat bench seats, consider using it in combination with a softer foam for added comfort.

Polyurethane Antimicrobial Foam

Polyurethane foam is a comfortable and affordable option for boat seating. It is often used in powerboat or pontoon seats, as it is usually upholstered in vinyl, which is waterproof and keeps the foam dry. Medium-density polyurethane foam is commonly used by boat manufacturers, while high-density foam will last longer but is more expensive. If you plan to use your Jon boat frequently, consider investing in high-density foam for added durability.

Open-Cell Foam

Open-cell foam is characterised by its soft and interconnected cells, which allow air to move easily through the material. It is commonly used for cushioning, padding, and backing in furniture, providing a balance of comfort and support. Polyurethane foam (polyfoam), memory foam, and latex foam are popular choices for open-cell foam. However, it is important to note that open-cell foam can absorb water, so it may not be the best option for boat seats that will be exposed to water.

When choosing foam for your Jon boat bench seats, consider the weight of the person who will be using the seats. Firmer foam is usually recommended for larger individuals. Additionally, if your boat will be exposed to the elements, prioritise foam that is resistant to water absorption and has antimicrobial properties to prevent the growth of mold and mildew.

Installation Tips:

• Measure the cavity of your bench seats to determine the appropriate thickness and size of the foam.
• Cut the foam into the correct shapes and use spray insulating foam to secure them in place.
• Consider using a combination of different types of foam to achieve the desired level of comfort and support.
• Keep the foam up off the floor and covered to prevent waterlogging and prolong its lifespan.

Bracing the middle bench

To brace the middle bench of your Jon boat, you can consider the following options and suggestions:

Materials

You can use aluminium hat channel as stringers to brace your boat. These can be purchased from a steel distributor or retailer, or you can attempt to make them yourself if you have access to a press brake. Alternatively, you could use plain aluminium channel or square tubing with a piece of flat aluminium stock welded to the bottom. This will act as a structural member while providing a flange to attach to the boat. If you are unable to find aluminium hat channel, you could also try to locate some plain aluminium channel and have it cut and welded in.

Scrap Yard

Visiting a scrap yard is a good idea to look for pre-made braces or ribs from other Jon boats. You may be able to find aluminium hat channel or similar materials that can be repurposed for your project.

Aluminium Brazing Rods

If you are unable to locate the necessary materials, you could try using aluminium brazing rods to create your own braces. Practise using these rods before attempting to brace your boat, as they can be challenging to work with and may not be as strong as rivets.

Rivets

Rivets are a common and effective method for securing benches in Jon boats. Ensure you use stainless steel rivets to prevent corrosion.

Wood

If you are looking for an economical alternative, you can consider using wood for your benches and braces. Pressure-treated lumber, such as old treated deck lumber, can be used, but be aware that it is heavy and may cause corrosion issues with the aluminium boat over time. To prevent this, seal the wood with paint, pruning tar, or gutter seal before use. You can also use synthetic decking materials, which are low-cost, durable, and pre-finished. For the best results, use stainless steel hardware for fasteners.

Foam

After removing the middle bench, you can add lateral rigidity by laying foam between the stringers and then installing an aluminium floor. This will also help with buoyancy in case the boat takes on water.

Custom Fabrication

If you are unable to find suitable materials or have unique requirements, you may need to have custom benches fabricated to fit your Jon boat. This option may be more expensive but can provide a tailored solution.

Installing a boat seat swivel

First, you will need to purchase a suitable boat seat swivel. These are available at marine supply stores or online. Once you have the swivel, you can begin the installation process.

If your boat bench already has mounting holes, you can simply use those to attach the swivel. Line up the holes on the swivel with the holes on the bench and insert bolts or rivets through them. Make sure to use washers and nuts on the backside of the bench to secure the swivel in place. If you are using bolts, you may need to hold the bolt heads in place with a combination wrench while tightening the nuts.

If your boat bench does not have mounting holes, you will need to drill them yourself. It is important to use the correct type of anchors or fasteners to avoid creating a dangerous situation. Plastic anchors can slip out over time, so it is recommended to use something more secure like Rivnuts or Toggler Snaptoggles. To install Rivnuts, you will need a special tool, which can be purchased at a hardware store. Drill the appropriate sized hole for the Rivnut, insert it into the hole, and then use the installation tool to tighten it in place. Toggler Snaptoggles are another good option and can be found at hardware stores as well.

Once the fasteners are in place, you can attach the swivel to the bench using bolts and washers. Make sure the bolts are tight and secure before attaching the seat to the swivel. With the right tools and careful installation, your boat seat swivel will provide a stable and comfortable seating option for your boat.

Frequently asked questions