Last updated: August 20, 2026
A factory jon boat seat is a bench of bare aluminum, and after about ninety minutes it stops being acceptable. It is hot in summer, cold in spring, too low to fish from comfortably and too hard to sit on for a whole morning. Every jon boat owner eventually looks into proper seating, and then runs into the real problem: where do you actually attach it.
The hull is thin sheet aluminum with a few ribs, the bench tops are narrow, and drilling in the wrong place is permanent. This guide covers the three mounting approaches that work on a jon boat, which seat styles suit a narrow hull, and how to add seating without turning a stable little boat into a tippy one.
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Quick Answer
What is the best way to add seats to a jon boat?
- Clamp on seats grip the existing bench and need no holes, the easiest reversible option.
- Bench mounted swivels bolt through the bench top with backing plates and give the most solid feel.
- Pedestal seats raise you higher, which improves visibility and reduces stability, so keep the post short.
- Low back and folding seats suit a narrow hull better than tall lounge seats.
Bottom line: start with clamp on or bench mounted seating and keep seat height low, because every inch you rise costs stability on a flat bottom hull.
The Three Ways to Mount a Seat
Clamp on brackets grip the existing aluminum bench and require no drilling, which makes them the reversible choice. Bench mounted swivel bases bolt through the bench with washers or backing plates. Pedestal systems use a post in a base, either on the bench or on a floor mounted plate.
Which one suits you depends on how permanent you want the change and how you fish. Clamp on hardware moves between boats and comes off for hauling gear. Bolted mounts feel solid and never shift, but they put holes in a hull you may sell one day.
Height Is a Stability Decision
Every inch a seat raises you moves weight higher above the waterline, and on a flat bottom boat with a narrow beam that is felt immediately. A tall pedestal that would be unremarkable on a bass boat can make a small jon boat feel nervous when someone shifts their weight.
Sitting Low, Fishing Comfortably
A low mounted swivel seat directly on the bench gets you most of the comfort benefit at almost no stability cost. Add a cushion rather than height, and the boat behaves the way it did before.
When a Pedestal Is Justified
Wider jon boats with a beam that inspires confidence can carry a short pedestal, and the extra sight line helps in shallow water. Keep the post short rather than tall, and be honest about how many people move around the boat at once.
Seat Options by Situation
No Holes, No Commitment
A clamp on seat that grips the bench is the fastest upgrade in this whole category. It comes off in a minute for hauling, moves between boats, and leaves the hull exactly as it was. This is where most owners should start.
A Solid Bolted Swivel Setup
Where the seat position is settled, a swivel base bolted through the bench with proper backing gives the most secure feel and the smoothest rotation. Attwood and Springfield both build swivel hardware for this job.
Replacing the Seat Itself
A low back folding seat in marine vinyl is the right shape for a jon boat: it drops flat for stowing gear, keeps your elbows free for casting, and does not add much weight up high.
Spreading the Load in Thin Aluminum
Backing plates and fender washers under a bench are what stop a bolt pulling through thin sheet after a season of load cycling. They cost very little and they are the difference between a mount that stays tight and one that works loose.
Comparing the Mounting Approaches
| Approach | Holes needed | Feel | Watch for |
|---|---|---|---|
| Clamp on bracket | None | Good, slight movement | Bench width and lip must suit the clamp |
| Bench bolted swivel | Through the bench | Solid | Needs backing plates in thin aluminum |
| Short pedestal | Base plate bolted | Solid, raised | Raises weight, costs stability |
| Portable cushion seat | None | Basic | Slides around, no back support |
Doing the Install Without Damaging the Hull
Mount at a rib or a reinforced section of bench wherever possible, not in the middle of an unsupported span. Use stainless fasteners, spread the load with large washers or a backing plate underneath, and seal the holes so water does not sit in a fastener hole through the winter.
Before you drill anything, sit in the position with the seat held in place and check that you can reach the tiller or the wheel, that the seat does not block the bench you use for gear, and that a second person can still get past. Aluminum does not forgive a second set of holes six inches away from the first.
Weight Distribution With Two People Aboard
Jon boats are sensitive to where the load sits. Two swivel seats mounted side by side on the same bench will feel very different from two seats mounted fore and aft, and the fore and aft arrangement almost always handles better because it spreads weight along the hull.
Think about the whole loadout, not just the seats. Batteries, a cooler and gear all count, and a boat that felt fine with one person on a bare bench can feel unsettled once seating raises two people and the gear moves forward. Trim the load rather than fighting it with the motor.
Comfort Upgrades That Cost Nothing in Stability
Not every improvement has to raise you off the bench. A thick marine cushion, a folding backrest that clamps to the bench top, or simply moving the seating position a few inches to balance the boat all improve a long morning without changing how the hull behaves.
These are also the changes that suit a shared or borrowed boat, since nothing is permanent and nothing needs tools. If you are unsure whether a seat position works before committing to it, start here and drill later once you know where you actually want to sit.
Frequently Asked Questions
Can I add seats to a jon boat without drilling? Yes. Clamp on brackets grip the existing bench and hold a standard seat, which makes them the easiest reversible upgrade and the right starting point for most owners.
Will a swivel seat make my jon boat unstable? Not by itself, but height does. A seat mounted low on the bench barely changes how the boat behaves, while a tall pedestal raises weight above the waterline and makes a narrow hull feel noticeably more sensitive.
What seats fit a jon boat? Standard marine seats with a common bolt pattern fit, provided the mount does. Low back and folding designs suit the narrow layout better than tall lounge seats.
How do I stop bolts pulling through thin aluminum? Spread the load with backing plates or large fender washers underneath, and mount at a rib or reinforced section rather than mid span. Use stainless hardware and seal the holes.
Can I use a regular office or lawn chair? No. Those are not built for outdoor exposure or for the loads a boat puts through a seat mount, and neither the frame nor the fabric survives the environment.
How many seats should a small jon boat have? Fewer than you can physically fit. Capacity is set by the manufacturer’s plate on your specific boat, so follow that rather than counting the spots where a seat would bolt on.
The Bottom Line
Start with clamp on seating if you are unsure, bolt it down once you know the position, and keep everything low. That combination gives a jon boat the comfort of a much bigger fishing boat without changing how it handles. For seat construction and vinyl quality in general, see our boat seat buying guide, and for bolt patterns and base hardware there is the seat mount guide.