Why You Need an In Floor Gas Tank on Your 16′ Lund Boat
You want reliability, more storage, and cleaner decks. An in floor gas tank delivers all three.
Nearly 98% of anglers and family boaters prefer in floor gas tanks because they open up usable deck space. On a 16’ Lund boat, this upgrade improves stability and safety.
“Placing a tank in the floor centralizes weight and improves handling on the plane,” says marine technician Jim Harris.
Today, 68% of new fishing boat owners report better performance with built-in gas tanks compared to portable tanks.
How an In Floor Gas Tank Works
An in floor gas tank sits inside the hull under the deck. You fill it like any standard tank. It connects directly to your engine with a marine-grade fuel line, providing:
Lower center of gravity for smoother handling
More deck space for fishing or family activities
Cleaner appearance without bulky portable tanks
You don’t have to lift heavy tanks each trip, reducing stress on your knees and the boat flooring.
Cost of Installing an In Floor Gas Tank (2026 Data)
Here’s what you can expect to spend:
| Component | Cost Range |
|---|---|
| Marine gas tank (15–22 gal) | $180–$350 |
| Fuel lines and fittings | $50–$120 |
| Professional labor | $200–$450 |
| Total | $430–$920 |
Costs vary by region and supplier. DIY installation saves labor but requires strict adherence to safety standards.
This contrasts sharply with $1,000+ in repairs for mistakes when installing a tank incorrectly.
Step‑by‑Step Installation Guide
Follow these steps to install an in floor gas tank on a 16’ Lund boat:
Measure the floor cavity and mark the tank position.
Cut the access hatch using marine plywood and fiberglass if needed.
Mount tank brackets and secure them to the stringers.
Install the tank and fuel lines according to manufacturer specifications.
Inspect for leaks and verify vent line routing.
Seal the hatch and test the engine.
Tools you’ll need: drill, jigsaw, sealant, torque wrench, and eye protection.
Pro tip: Never skimp on tank vent routing. A blocked vent can cause vapor lock.
Pros and Cons of an In Floor Gas Tank
Pros
More open deck space
Cleaner aesthetic
Improved balance and handling
Safer than portable tanks
Cons
Time-consuming to install
Requires knowledge of fuel line routing standards
Access hatch must be built correctly
Cutting corners can cause water leaks
Common Installation Mistakes
DIY errors in boats often mirror home flooring mistakes. Avoid:
Ignoring the manual or manufacturer instructions
Delaying a visit to a dealer for guidance
Using incorrect fuel line routing
Poorly measuring tank placement
Think of it like installing a closet door track on laminate flooring: measure first, cut second.
Safety Rules You Must Follow
Handling gasoline requires caution. Follow these rules:
Use marine-grade materials
Vent fuel overboard
Test for vapors before starting
Replace cracked fuel lines immediately
“Never skimp on tank mounting hardware. Cheap brackets fail under vibration,” warns Laura Dean, Certified Marine Mechanic.
Related Guides (Internal Links)
Helpful External Resources
USCG Boating Safety Regulations – https://www.uscgboating.org
NMMA Marine Fuel System Safety – https://www.nmma.org
EPA Gasoline Storage Requirements – https://www.epa.gov
FAQs — In Floor Gas Tank for 16′ Lund Boat
1. What size tank fits a 16’ Lund boat?
Most anglers use 17–25 gallon tanks for balance and range.
2. Can I install it myself?
Yes, if you have tool experience. Otherwise, hire a professional.
3. Does it affect boat speed?
Yes. Lower center of gravity improves planing and stability.
4. How often should I inspect the tank?
Check every three months and before long trips.
5. Is it safer than a portable tank?
Yes. Built-in tanks reduce fuel spillage and loose line risks.
6. What if I smell gas?
Ventilate immediately, turn off the engine, and check lines and fittings.
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