Comfortable fishing or quiet movement on the water on a hard bottom inflatable boat NDMA You can't have a comfortable seat, standard inflatable cans get tired of keeping your back, and a simple squatting landing is not good for waiting for a long time for cool, which is why many boat owners are thinking about upgrading to create a swivel chair for the boat DIY, which not only improves ergonomics, but also saves a significant amount of money, because ready-made marine models are quite expensive.
Self-manufacturing requires careful consideration of materials and design so as not to disturb the boat's balance or damage the cylinders. jar-paseLightness, strength and quick dismantling are the three pillars that support a successful project, and in this article we will go through all the steps of creating a functional seat that will turn your boat into a fully comfortable boat.
Selection of materials and preparation of tools
The first step in creating a comfortable PVC boat seat is to make a good selection of components. The main requirement for materials is resistance to moisture, salt water and ultraviolet radiation. For the frame, the most common use is marine plywood at least 18 mm thick or a stainless steel profile. Aluminum profiles are also popular, but require high-quality insulation of the sections to avoid oxidation. If you choose a tree, be sure to treat it with yacht lacquer or special impregations to protect against rotting.
The pivoting mechanism itself is the heart of the whole structure, and you can buy a ready-made unit from a fishing goods store or use parts from decommissioned office furniture that have been corrosion-resistant. sea-turningIt's rust-free, it's got a reliable stopper, and you'll also need fasteners, stainless steel bolts, nuts with grovers, and rubber pads to prevent slipping.
Use water-free materials to upholster your seat, ideally foamed PVC-coated polyethylene or a special car foam with water-repellent skin, regular foam will quickly gain water and become heavy, which is critical for small-sized boats, and prepare tools: jigsaw, screwdriver, drill, roulette and coalstone. Accuracy of markings is crucial here.
- 🛠️ Marine plywood FFS or aluminum profile for the frame base
- ⚙️ Rotating mechanism with position locker (preferably made of stainless steel)
- 💧 Waterproof glue and yacht lacquer to protect wooden elements
- 🧵 Oxford fabric or vinyl for finishing seat upholstery
⚠️ Warning: When using metal parts, make sure they do not have sharp edges that can damage the boat cylinders when you carelessly move or rock on the wave.
Base design and bank attachment
The seat base should be securely attached to the slot bank, which is the load-bearing element in the boats with NDND. The base design is usually a rectangular or square board that is inserted into the slots of inflatable tubes. It is important to calculate the dimensions so that the base sits tightly in the slots, but does not deform them. Often, the masters make the base removable, which allows you to use the can for other purposes or easily remove the seat if necessary.
To fix the rotary mechanism to the base, an intermediate plate is used, which distributes the load from the weight of the fisherman and the dynamic jerks when pitching. Firm to the bank If you use a wooden base, the plywood should be thick enough so that the screws of the mechanism do not go through the screws under heavy load, you can also install the stiffness ribs at the bottom of the base.
There is an option of fastening not only in the grooves, but also using additional stops in the bottom of the boat, however, for models with NDND this is rarely required, since a hard bottom itself provides a good stable.singularityThe key is to have the seated person's center of gravity firmly above the boat's axis of symmetry or be shifted minimally, ensuring that the boat is properly landed on water and handleable.
When designing the base, consider the height of the side and the location of the inflatable tubes. Too wide the base can rest on the cylinders when rolling, creating discomfort. The optimal width usually corresponds to the width of a standard slot jar, which varies from 25 to 35 cm depending on the model of the boat. The length of the base is selected individually, but most often is 30-40 cm to ensure sufficient support area.
Seat manufacture and filler selection
The seat is a direct contact element with the body, so its ergonomics come to the fore. The shape of the seat can be classic square, rectangular or anatomical, repeating the curves of the body. For fishing, often make a seat with a slight slant back or a high side in the rear to make it easier to lean on, the seat frame is made of the same moisture-resistant plywood as the base, or is formed from durable plastic.
So, the choice of filler is a critical point, and as mentioned, regular foam is not a good fit because it's hygroscopic. closed-cell polyurethane foam They don't absorb water, they clean easily and they dry quickly, and the comfort layer should be at least 5-7 cm thick to ensure that you're soft when you're sitting on a hard bottom of a boat for a long time or when you're shaking on a wave.
The seat skin should be strong and resistant to abrasion. cloth Oxford Polyurethane coated is a great budget option: more expensive models are sheathed with artificial leather or specialized marine vinyls that do not fade in the sun or crack in the cold. The seams should be treated with moisture-repellent threads, and at the bottom of the skin it is desirable to provide drainage holes or mesh inserts for rapid water flow.
- 🪑 The shape of the seat should ensure a comfortable landing for several hours.
- 🌊 The filler must be fully moisture resistant and not lose volume when wet.
- 🧵 Upholstery fabric should be protected from UV radiation and mechanical damage
- 🔩 The fastening of the soft part to the rigid base should be hidden and reliable.
⚠️ Note: Do not use natural-based fabrics (cotton, linen) for upholstery, as they rot quickly in high humidity conditions and become a breeding ground for bacteria.
Installation of the turning mechanism
The rotary assembly requires precision and precision. The mechanism is attached between the base (which is on the jar) and the seat itself. It is important to ensure that the rotation axis is vertical so that the seat does not sway. To do this, the mounting surfaces must be perfectly flat. If you use a ready-made marine mechanism, follow the manufacturer's instructions when the bolts are tightened. Homemade bearing units require regular lubrication and protection from sand.
The turn-holder is an important safety feature, allowing you to lock the seat facing the stern (for motor control) or facing the nose (for fishing), the fixing mechanism should be easy to control even with wet hands and gloves, often using spring-loaded pins or eccentric clips, check the hold before getting on the water, making sure that spontaneous turning is excluded.
When installing, use larger diameter washers or special spacers to increase the area of the press and avoid pressing the base material. All metal joints should be treated with silicone lubrication to prevent creaking and jamming. After assembly of the entire structure, conduct a strength test: with effort, ride on the seat in a safe environment, simulating a swing.
☑️ Verification of the machinery
If you make the mechanism yourself from a car seat or an office chair, make sure that the gas lift (if any) is working and holds the load. However, for a boat, gas shock absorbers can be dangerous at low temperatures, so it is better to use mechanical spring solutions.
Corrosion protection and finishing
Aggressive aqueous environments do not forgive mistakes in the protection of materials. Even stainless steel can be subject to spot corrosion, not to mention ordinary steel or aluminum. All metal parts, bolts, nuts and mechanisms must be covered with protective compounds. Anodized coatings or special soils will suit aluminum. Steel requires high-quality epoxy paints or the use of zinc-containing primers.
Wooden elements of the structure need to be thoroughly grinded and coated with several layers of yacht varnish or oil for decks. Pay special attention to the ends of plywood, as it is through them that moisture penetrates into the interior most quickly. The ends can be additionally glued with fiberglass on epoxy resin for maximum tightness. Regular inspection of the coating and restoration of the protective layer will prolong the life of your chair for many seasons.
Plastic elements, if used, should also be treated with a UV protective spray to prevent fading and cracking. Rubber seals are lubricated with silicone to prevent them from drying out and sticking. A comprehensive approach to protection will ensure the product's durability.
| Materials | Type of protection | Frequency of processing | Features |
|---|---|---|---|
| Sea plywood | Yacht lacquer/Oil | Once a season | Refrigeration is required before application |
| aluminum | Anodizing/Grunt | When damaged | Afraid of contact with copper |
| Stainless steel | Passivation/Lubrication | After every fishing trip | Freshwater flush |
| Steel is common. | Epoxy paint | Every year. | It requires perfect surface preparation. |
Secrets of long-term fasteners
Use a threaded hold (anaerobic sealant) for all screw joints. Vibration on water can unwind even the tightest nuts in one season. It is also recommended to use plastic or rubber washers between dissimilar metals to avoid electrochemical corrosion.
Testing and safety on water
The first outing with a new seat should be in a calm environment and close to the shore, check the stability of the boat with the seat installed, the rotating chair raises the center of gravity, which can make the boat more rolling, assess how the boat behaves as you move, whether there is a critical roll.
Check the stability of the base in the cylinder slots when the engine is running or rowing, the seat should not slip or shift, and also make sure that the rotation of the seat does not affect anything: no motor controls, no boat side, no gear. Safety is the number one priority.
If you're planning to fish from this chair, make sure you have space for the organizers or rod holders to attach, but don't overload the structure. Overweight at altitude can destabilize the boat. Always remember the weight distribution in the PVC boat.
- 🚣 Check the stability of the boat in quiet water before going to the depth
- ⚓ Make sure that the chair does not interfere with the control of the boat and motor
- 🎣 Do not place heavy loads on the high back or armrests of the chair.
- 🔍 Regularly inspect the mounting points for fatigue of materials
⚠️ Warning: When installing a high chair on a small PVC boat, always use a safety slip or life jacket, as the risk of tipping over when driving sharply increases.
To increase the service life of the rotation mechanism, after each fishing in salt water, be sure to spray the knot with a water-repellent spray (WD-40 Specialist or analogue) and wipe with dry rags.
Outcomes and operational recommendations
Creating a rotary chair for a PVC boat yourself is a task that is available to every amateur with minimal carpentry skills. The result will be a significant increase in comfort on fishing and the ability to spend much more time on the water without back fatigue. The main thing is not to save on the quality of materials and accessories, since repair on the water will be impossible.
Regular maintenance and proper care of the seat will allow it to last for many years. Keep an eye on the condition of the fastener, the integrity of the upholstery and the operation of the rotary mechanism. Timely prevention is cheaper and easier than making a new part. Your chair will become an integral part of the boat, making every voyage enjoyable.
A well-made chair not only adds comfort, but also increases the safety of fishing, reducing fatigue and allowing you to maintain concentration.
Don't be afraid to experiment with shape and function, adapting the design to your individual needs, maybe you add a built-in gearbox under the seat or a heating system, and creativeness combined with technically competent implementation will give you the best result.
How much weight can a homemade chair withstand?
When using marine plywood thickness of 18-20 mm and high-quality metal components, a homemade chair easily withstands a load of up to 150-200 kg. The key factor is the reliability of the fastening of the rotary mechanism and the strength of the groove jar.
Can I use an office chair for a boat?
Using a full office chair is not recommended due to its heavy weight and moisture instability, but it is possible to dismantle the rotary mechanism and use it as a base by making new moisture-resistant seat and mounting elements.
How to prevent the chair from slipping on the bank?
To prevent slipping, use rubber mats or special anti-slip tapes between the base of the chair and the jar, and you can also make wooden stops that will enter the slots of the cylinders, fixing the position.
Do I need to take off my chair after fishing?
It is advisable to remove the chair or at least disconnect it from the can to dry, this will prevent mold formation in the contact areas and prolong the life of both the chair and the inflatable boat.