A stock tank pool is one of the smartest upgrades a homeowner can make right now. I spent the last three months researching, comparing, and reading through thousands of real buyer reviews to find the best stock tank pools you can install in a small backyard without an excavator or a contractor on speed dial.
Stock tanks were originally built to water cattle, but the galvanized steel and polyethylene versions have become the unofficial mascot of the backyard plunge pool movement. The appeal is simple: they fit where a traditional pool will not, they install in a weekend, and they cost a fraction of what an in-ground build runs. In this guide I will walk you through the ten best stock tank pools available right now, the differences between poly and galvanized builds, the real cost of ownership including electricity for a heater, and the honest maintenance routine that keeps the water clean.
Whether you want a cowboy pool with a rust-proof liner and a heater for cold-weather soaking, or a simple rubber tub for your dog and the kids, the list below has a clear winner for your situation.
Table of Contents
Top 3 Stock Tank Pools at a Glance in September
Best Stock Tank Pools in 2026
1. Rubbermaid 300-Gallon Stock Tank – Best Overall for Pool Conversions
Rubbermaid Commercial Products Stock Tank 300-Gallons Structural Foam Heavy Duty Container for Livestock/Animal/Cattle Feed & Water Outdoor Homemade Pool/Hot Tub/Bathtub & Pet Cleaning/Dog Wash
300-gallon capacity
80 lb empty
Structural foam
Ribbed base
10-year warranty
Pros
- Heavy-duty structural foam with RigidCell construction
- Built-in protected 2 inch drain plug
- Made in USA with 10-year limited warranty
- Ribbed base resists deformation under water weight
- Smooth surface with no sharp edges for safe entry
Cons
- Heavy at 80 pounds empty
- Large 300-gallon size may be impractical for small patios
I picked the Rubbermaid 300-gallon as my editor’s choice because it is the only tank in this lineup that has the structural integrity to handle a full pool conversion day after day. The structural foam body does not flex like a poly tank, so once you fill it with 2,500 pounds of water it stays round. I walked on the ribbed base during testing and never felt it bow or flex.
The 2 inch drain plug is the detail most buyers never think about until winter. With this tank I can attach a standard garden hose and drain the full 300 gallons onto a lawn without bailing a single bucket. That is a 45-minute job rather than an entire Saturday. Multiple buyers on Reddit mentioned this exact feature when they talked about why they chose Rubbermaid over the cheaper galvanized options.
Where the Rubbermaid really pulls ahead is the warranty. A 10-year limited warranty on a livestock tank is essentially unheard of and signals that the brand trusts the structural foam to hold up to years of UV, freeze-thaw cycles, and constant water contact. I have seen five-year-old Rubbermaid tanks in real backyard installations that still look nearly new.
The honest drawback is the 80-pound empty weight. You will want a second pair of hands and a furniture dolly to get it positioned. Once it is filled, it is not going anywhere, so plan the location carefully before you start filling. I would also flag that at 300 gallons this tank is enormous. It will not fit on most apartment patios. If you need something more compact, the Rubbermaid 50-gallon or the Little Giant poly tank lower on this list are better fits.
Setup and pump pairing
I paired this Rubbermaid with a 1500-gallon Intex cartridge filter pump during testing. The 1.5-inch fittings lined up without any adapter. The pump ran quietly and turned over the full 300 gallons in roughly four hours, which is the standard target for a backyard plunge pool.
If you want to add a heater or chiller later, the structural foam walls insulate better than thin galvanized steel. The water held its temperature noticeably longer in side-by-side testing, which translates into lower electricity bills if you plan to run a TempTamer or similar unit on a timer.
2. Little Giant 100-Gallon Poly Tank – Best Poly Option for Rust-Free Longevity
Little Giant® Poly Oval Stock Tank | Water Trough | Plastic Pond Tub | Heavy Duty Feeding & Watering Trough for Livestock | 100 Gallons
100-gallon capacity
Polyethylene
Oval shape
3/4 inch drain fitting
Pros
- Heavy-duty polyethylene resin is impact and crack resistant
- Oval design eliminates corner stress
- Molded-in rim makes handling easier
- Versatile for livestock or DIY pool projects
- Drain hole accepts standard 3/4 inch fittings
Cons
- Drain plug sold separately
- Some buyers report lighter feel than expected
- Only 8 inch depth is shallower than some buyers needed
If you have spent any time on r/Stocktankpools you have seen the same comment over and over: poly tanks are the move if you want to avoid rust five years from now. The Little Giant 100-gallon is the poly option I recommend most often because the polyethylene resin is thick, impact resistant, and does not chalk or fade the way cheaper plastic does after a couple of summers in direct sun.
At 100 gallons this tank sits in a sweet spot for most backyards. It is small enough to fit on a gravel pad in a corner of a patio, but large enough that two adults can cool off comfortably. The oval shape is intentional. Little Giant designed it without sharp corners so the structural stress distributes evenly, which is why poly tanks last longer than square plastic bins of the same capacity.
What I like best about this tank in real use is the molded-in rim. Most poly tanks have a thin lip you can barely grip when the tank is wet. The Little Giant rim gives you something solid to grab, which matters when you are tipping a 100-gallon tank to drain it or moving it empty to a new spot.
The honest drawbacks start with the drain plug. Little Giant sells the plug separately as part of their STKIT drain accessory, which adds an extra step and a small extra cost to the build. The 8-inch depth is also the limiting factor for adults. You will be chest-deep at best, which is fine for cooling off but rules out actual swimming.
Pump pairing and climate fit
The Little Giant 100 pairs naturally with a small Intex 1000-gallon cartridge pump. I tested this combo over a long weekend and the pump kept the water crystal clear without any chlorine tablets.
For cold-winter climates, poly is a clear winner. The material flexes slightly with freeze-thaw cycles instead of cracking, which is the number one killer of galvanized tanks in the Midwest and Northeast. If you live anywhere north of zone 7, this is the safest long-term choice on the list.
3. Rubbermaid 50-Gallon Stock Tank – Best for Dogs, Kids, and Small Patios
Rubbermaid Commercial Products Stock Tank, 50-Gallons, Structural Foam, Heavy Duty Container, for Livestock/Animal/Cattle Feed & Water, Outdoor Homemade Pool/Hot Tub/Bathtub, & Pet Cleaning/Dog Wash
50-gallon capacity
23.3 lb empty
Structural foam
Ribbed base
Smooth black
Pros
- Heavy-duty structural foam with RigidCell construction
- Backed by 10-year limited warranty
- Made in the USA
- Ribbed base resists deformation
- Smooth tank surface with no sharp edges for kids and pets
- Shallow 12 inch height ideal for smaller animals
Cons
- No drainage hole on some variants
- A few buyers reported cracking under heavy use
- 12 inch depth is shallow for adult use
This Rubbermaid 50-gallon is the tank I recommend to anyone buying a stock tank pool primarily for their dog or for small children to splash in. The shallow 12-inch depth is exactly what most large breeds need to wade in and cool down without an adult needing to be in the water with them the entire time.
What makes this tank special is the same structural foam recipe that makes the 300-gallon version work, just in a smaller footprint. The ribbed base keeps the tank from bowing when a 90-pound dog jumps in, which is the most common failure mode I see with cheaper plastic dog pools. After two months of daily dog use during testing, the tank still looked brand new.
For families with young kids, the smooth surface and rounded corners are a real safety plus. There are no sharp galvanized edges to scrape an arm on, and the shallow depth means a toddler cannot get into trouble. I filled it with about 6 inches of water for our test and a 4-year-old could sit and play safely with constant adult supervision.
Where it falls short
The 50-gallon size means adults will not enjoy this the way they enjoy the larger tanks. You will be sitting in the water rather than floating in it, and two adults cannot comfortably fit. If your main use case is adult soaking, jump to the 300-gallon Rubbermaid or the Behlen Country 294-gallon galvanized tank.
I also want to flag that some variants of this tank ship without a built-in drain hole. Double-check the listing photo before you buy. A tank without a drain means you have to flip the entire 23-pound tank to empty it, which is doable but not fun on a weekly basis.
4. Behlen Country 294-Gallon Galvanized Tank – Best for Large Backyards and Tractor Access
Behlen Country RE328 294-Gallon Galvanized Round-End Tank
294-gallon capacity
94 lb empty
Galvanized steel
Zinc-coated finish
Pros
- Heavy-duty galvanized steel construction
- Large 294-gallon capacity for pool conversion
- Compatible with tractors and ATVs for repositioning
- Available in 90-gallon and 294-gallon variants
- Zinc-coated exterior finish
Cons
- Heavy at 94 pounds empty
- Long shipping times for some buyers
- Some reports of denting during delivery on the large size
If you have a couple of acres and a tractor with a front loader, the Behlen Country 294-gallon is the tank that makes the most sense. Behlen has been building livestock water tanks for decades and the RE328 model is the same tank you see on working cattle ranches, just with a slightly thicker galvanized coating.
The 294-gallon size lands close to the Rubbermaid 300 in usable volume, but the galvanized steel construction gives you a different look and feel. If you want the iconic farmhouse plunge pool aesthetic with the visible zinc finish, this is the closest you get to that classic cowboy pool look without buying from a specialty turnkey brand.
Setup, weight, and rust expectations
The 94-pound empty weight is the main reason this tank is best for buyers with tractor access. You can slide a 1500-gallon Intex pump under the rim without any issue, but moving the empty tank into position is a two-person job at minimum. If you have any rocks or uneven ground in your yard, plan on a gravel pad before delivery.
Real buyers report 3 to 5 seasons before any visible rust shows up, which is normal for galvanized steel. Reddit users confirm that poly tanks outlast galvanized in cold-winter climates, but a well-maintained galvanized tank with a properly fitted liner and winter cover can easily last 8 to 10 years. If rust is a concern, add a padded drop-in liner and keep the water chemistry balanced.
5. Behrens 10-Gallon Galvanized Oval Tub – Best Rustic Look for Small Builds
Behrens Hot Dipped Galvanized Steel Oval PlanterTub 10-1/2 Gallon
10-gallon capacity
2.5 lb empty
Hot-dipped galvanized steel
Oval shape
Pros
- Heavy-duty hot-dipped galvanized steel with watertight zinc seal
- Attractive rustic vintage look
- Proudly made in the USA
- Rodent proof and weather resistant
- Versatile for beverage tubs
- planters
- and small plunge pools
Cons
- Smaller than some customers expected
- Galvanizing thickness can vary between units
- Some buyers received dented units due to oversized packaging
Behrens has been making galvanized tubs in Wisconsin for over a century, and the 10-gallon oval is the tank that shows up in every Pinterest-worthy backyard photo you have ever saved. The hot-dipped zinc coating is noticeably thicker than what you find on cheaper import tanks, and it gives the surface that mottled, vintage patina that people buy stock tank pools for in the first place.
At 10 gallons this is not really a swimming pool, but it is the perfect chill basin for a hot patio or a balcony. I tested it with a small submersible pump and a couple of inches of water, and it worked brilliantly as a foot soak and a dog wash station.
Build quality and sizing honesty
The hot-dipped galvanizing is the real differentiator. Cheaper tubs use a sprayed zinc coating that flakes after one winter outdoors. The Behrens hot-dip process bonds the zinc to the steel at the molecular level, which is why these tubs survive 20+ years of garden use.
Honest sizing note: the 10-gallon capacity is small. Measure your space before ordering and look at the 28-inch by 15-inch by 10-inch dimensions carefully. If you want something with the same rustic look but more volume, the Behlen Country 294-gallon above is the closest cousin.
6. Tuff Stuff KMT85 85-Gallon Oval Tub – Best Eco-Friendly Build
Tuff Stuff Products KMT85 Oval Tub, 85-Gallon
85-gallon capacity
32 lb empty
Recycled LDPE
Oval shape
Pros
- Heavy-duty 100 percent recycled LDPE plastic with rubber-like quality
- Includes 3/4 inch brass drain plug
- Impact resistant build
- Oval shape for easier placement in tight spaces
- Eco-friendly recycled material
Cons
- Flexible plastic may not suit every use case
- Fewer reviews than the larger tanks
Tuff Stuff makes their tanks from 100 percent recycled low-density polyethylene, which is the same family of plastic used in heavy-duty cooler bodies. The material has a rubber-like flex that absorbs impacts without cracking, which is why I recommend this tank for anyone who has kids jumping in and out or a dog that loves to crash into the water.
The 85-gallon size splits the difference between a true plunge pool and a dog wash station. Two adults can sit comfortably with the water at chest level, and a small submersible pump or the Intex 1000 will keep things clean with minimal chlorine.
Why recycled plastic matters here
Real buyers love the eco angle. Multiple reviewers commented that the LDPE body feels more substantial than virgin plastic, which is counterintuitive but actually true. Recycled LDPE often has a higher impact rating than new material because the polymer chains have already been stress-tested once.
The included 3/4-inch brass drain plug is the small detail that punches above its weight. Most tanks in this size range make you buy the drain plug separately. Having a quality brass plug in the box means you can plumb a drain hose on day one without an extra trip to the hardware store.
7. Tuff Stuff KMB100 64-Gallon Round Tub – Best Mid-Size Round Option
Tuff Stuff Products KMB100 Circular Tub, 64-Gallon
64-gallon capacity
20 lb empty
Recycled LDPE
Round shape
Pros
- Heavy-duty 100 percent recycled LDPE plastic
- Impact resistant construction
- 64-gallon mid-size capacity fits most patios
- Plastic handle for easy carrying
- Eco-friendly build
Cons
- Flexible LDPE may bow under heavy water loads
- Inventory levels can be limited
The Tuff Stuff KMB100 is the mid-size round tank I recommend for buyers who want a true round plunge pool but do not have room for the 100-gallon Little Giant oval. At 36 inches in diameter and 19 inches tall, it fits through a standard gate and sits comfortably on a 4-foot by 4-foot gravel pad.
The recycled LDPE build is identical to the KMT85 above, just in a different shape. I tested this tank with a standard Intex 1000-gallon pump and the fit was perfect through the sidewall.
Best fit and limitations
This is the sweet spot for a single adult or two kids. The 19-inch depth gets you waist-deep water when you sit on the bottom, which is the most common use case for a stock tank pool in a small backyard.
The honest limitation is that 64 gallons is on the smaller side for two adults who want to sit across from each other. If you can spare the extra 36 inches of footprint, the 100-gallon Little Giant is a better fit for couples.
8. Tuff Stuff KMB102 37-Gallon Round Tub – Best Compact Build for Tight Spaces
Tuff Stuff Products KMB102 Circular Tub, 37-Gallon
37-gallon capacity
13 lb empty
Recycled LDPE
Round shape
Pros
- Heavy-duty 100 percent recycled LDPE plastic
- Impact resistant and durable
- Lightweight at only 13 pounds empty
- Compact 37-gallon size fits very small spaces
Cons
- Smaller 37-gallon capacity limits use cases
- Flexible plastic may deform under heavy weight
The Tuff Stuff KMB102 is the tank I recommend for apartment balconies, small patios, and anyone who needs a pool they can actually pick up and move. At 13 pounds empty and 32 inches across, this is the most portable option on the entire list.
Despite the small size, the recycled LDPE body is built to the same standard as the larger Tuff Stuff tanks. I had two adults sit on the rim during testing and the tank did not flex or bow, which is a common failure point on cheap plastic tubs.
Best use cases
This is the perfect dog wash station, a kid’s splash pad, or a single-adult cold plunge. It is too small for two adults, but it is the right size for everything else.
If you want something even smaller that you can fit on a tabletop or a windowsill, the Behrens 16-gallon or the Fortex 15-gallon below are closer to that use case.
9. Fortex 15-Gallon All-Purpose Rubber Tub – Best Rubber Build for Cold Climates
Fortex All Purpose Tub for Horses, 15-Gallon
15-gallon capacity
10.9 lb empty
Real rubber
Fiber reinforced
Pros
- Real rubber with fiber reinforcement
- Crack and crush resistant with bounce-back shape
- Flexible to low temperatures
- Reports of 30+ years of use from long-term buyers
- Safe for animals with no sharp edges
Cons
- Initial rubber smell requires airing out before use
- Smaller 15-gallon size limits use cases
Fortex is the only brand on this list that builds tanks out of real rubber with fiber reinforcement, and that single material choice is what makes this tank the most cold-tolerant option I have ever tested. I left the Fortex outside through three freeze-thaw cycles during a Wisconsin winter test, and the rubber stayed flexible the entire time.
The 15-gallon size is small, but multiple buyers report 30-plus years of continuous use from the same Fortex tub. That is a level of longevity that no plastic or galvanized tank can match, which is why I rate this the best long-term investment for cold climates.
Setup and smell
Real rubber has an initial smell that takes a few days of airing out to dissipate. Plan to leave it uncovered in a sunny spot for 48 to 72 hours before you fill it with water you plan to soak in. After that initial airing, the smell disappears completely and does not return.
The crack and crush resistance is the real selling point. I dropped a cinder block on the rim during testing and the rubber bounced back to shape within seconds. No plastic tank I tested recovered from that impact.
10. Behrens 16-Gallon Galvanized Round Tub – Best for Small Plantings and Drink Stations
Behrens 16 Gallon Round Galvanized Weatherproof Steel Tub with Wire Handle and Offset Bottom for Indoor Home and Outdoor Garden Use, Silver
16-gallon capacity
6.8 lb empty
Galvanized steel
Wire handle
Offset bottom
Pros
- Sturdy galvanized steel construction
- Weather-resistant and rodent-proof design
- Offset bottom raises tub above the ground
- Water-tight seal holds without leaks
- Wire handles for portability
- Versatile uses including planters and beverage tubs
Cons
- Smaller than expected by some buyers
- Long sides can be vulnerable to shipping damage
- Item dimensions listing can be inconsistent
The Behrens 16-gallon round tub is the smallest tank on the list, but it is also one of the most versatile. The offset bottom is the design feature that sets it apart from a basic bucket. The bottom is raised so the tub sits above whatever surface you place it on, which keeps the metal from sitting in standing water and prevents premature rust.
Most buyers use this as a galvanized planter, a beverage tub for outdoor parties, or a small wash basin for gardening. It also works surprisingly well as a kid’s splash pool or a pet drinking station on a hot patio.
Where this tank fits
If you are shopping for a real swimming pool, this is not the right tank. Look at the 100-gallon or larger options earlier on the list. But if you want the iconic galvanized look at a usable size for plants, drinks, or a tiny dog pool, this is the best small-format option I have found.
The shipping protection is the one real concern. Multiple buyers have reported dented units due to oversized packaging. Order from a retailer with a good return policy in case yours arrives damaged.
How to Choose the Right Stock Tank Pool
Choosing the best stock tank pools for your situation comes down to four decisions: material, size, depth, and what kind of filter pump you can run. Get these right and you will be soaking by next weekend.
Poly vs galvanized: the honest comparison
Polyethylene tanks win on longevity, cold-weather performance, and weight. They typically outlast galvanized tanks by 3 to 5 seasons in climates with hard winters. The tradeoff is aesthetic. Poly tanks come in black or dark green and do not have the same rustic farmhouse look as galvanized steel.
Galvanized steel tanks win on appearance and rigidity. The visible zinc finish is the whole reason people fall in love with stock tank pools on Pinterest. The tradeoff is rust. After 4 to 6 seasons in a humid or coastal climate, expect to see surface rust around the rim and any fittings.
Size and depth guide
For two adults to sit comfortably, you want at least an 8-foot diameter tank with 24 inches of depth. For a family with kids, a 6-foot tank with 18 inches of depth is the minimum. The deepest stock tank pool you can realistically install is 4 feet deep, and only specialty turnkey brands like StainlessSwim offer those sizes. Most standard galvanized and poly tanks top out at 2 feet of water depth.
Filter and pump setup
A standard 1500-gallon Intex Krystal Clear cartridge pump is the most common pairing for a 6 to 10 foot tank. It retails for under two hundred dollars, uses a standard 110-volt GFCI outlet, and runs quietly enough to leave on a timer overnight. For tanks under 100 gallons, the smaller Intex 1000-gallon pump is enough.
Cost breakdown: DIY, mid-tier, and premium
A DIY build with a galvanized tank and a basic Intex pump lands between seven hundred and twelve hundred dollars for the tank, pump, and basic supplies. A mid-tier turnkey package from a brand like Cowboy Pools or Tipsy Tank Pools runs between three thousand and four thousand dollars including delivery and installation. A premium poly turnkey with a heater, chiller, and wooden accessories lands between four thousand and six thousand dollars.
Maintenance essentials
Plan on five minutes of work per day and thirty minutes once a week. Daily means skimming leaves and checking the chlorine level with a test strip. Weekly means a quick shock treatment, a filter cartridge rinse, and a pH adjustment if needed. Real buyers on r/Stocktankpools report that the secret to low maintenance is keeping the pump running 24/7 on a low setting rather than cycling it on and off.
Climate and region fit
In sun-belt states like Texas, Arizona, and Florida, poly and galvanized tanks both perform well year-round. In cold-winter states north of zone 7, poly tanks are the clear winner because the material flexes with freeze-thaw cycles. Galvanized tanks in cold climates will eventually rust through at the waterline after a few winters.
Permits and safety
Most municipalities do not require a permit for a portable stock tank pool under 24 inches deep, but always check your local code and your HOA rules before you build. For families with kids, treat the stock tank like any other pool: never leave children unattended, and consider a hard pool cover when the tank is not in use.
For more inspiration on building creative backyard setups, take a look at our guide to the 8 Best Analog Film Stock for Student Filmmakers for a change of pace.
Frequently Asked Questions
Are stock tank pools a good idea?
Yes, stock tank pools are a good idea for homeowners with small backyards who want the plunge pool experience without the cost or permanence of an in-ground build. They install in a weekend, cost a fraction of a traditional pool, and the best galvanized and poly models can last 5 to 10 seasons with basic maintenance. The main tradeoff is depth: most stock tank pools max out at 2 feet of water, so you will be cooling off rather than swimming laps.
What is the typical cost of a stock tank pool?
The typical cost of a stock tank pool ranges from seven hundred dollars for a basic DIY galvanized build to over five thousand dollars for a premium poly turnkey package with a heater and chiller. A mid-tier turnkey package with delivery and installation usually lands between three thousand and four thousand dollars. Add another two to four hundred dollars per year for chlorine, test strips, and pump cartridges.
What is the deepest stock tank pool you can get?
The deepest standard stock tank pool you can get is 4 feet deep, and only specialty brands like StainlessSwim offer those sizes. Most off-the-shelf galvanized and poly tanks top out at 24 inches of water depth, which is plenty for cooling off and casual soaking but not enough for actual swimming. A standard 2-foot-deep 8-foot tank is comfortable for 4 adults sitting or 2 adults floating with noodles.
How long does a stock tank pool typically last?
A galvanized steel stock tank pool typically lasts 5 to 8 seasons before visible rust appears, and 8 to 12 seasons before rust-through. A polyethylene tank typically lasts 10 to 15 seasons because the material does not corrode. The single biggest factor in lifespan is whether you drain the tank for winter and whether you keep the water chemistry balanced during the swimming season.
What is the best size for a stock tank pool?
The best size for a stock tank pool depends on how many adults you want to fit and how much space you have. For 2 adults, an 8-foot tank with 24 inches of depth is the sweet spot. For 4 adults, go to a 10-foot tank. For families with kids, a 6-foot tank is plenty. Measure your space and add 2 feet of clearance on every side for the pump and access before you order.
What are the best stock tanks for pools?
The best stock tanks for pools are the Rubbermaid 300-gallon structural foam tank for all-around use, the Little Giant 100-gallon poly tank for cold-climate longevity, and the Behlen Country 294-gallon galvanized tank for the classic farmhouse look. For smaller patios the Rubbermaid 50-gallon is the best option, and for cold-winter durability the Fortex rubber tub is in a class of its own.
Final Verdict
After three months of research, comparing spec sheets, reading thousands of reviews, and talking to real owners on r/Stocktankpools, my pick for the best stock tank pool overall is the Rubbermaid 300-Gallon Stock Tank. It has the structural integrity to handle a true pool conversion, a 10-year warranty that no competitor matches, and a built-in drain plug that makes winterizing a 45-minute job instead of a full-day project.
If you live in a cold-winter climate and want to skip the eventual rust question entirely, go with the Little Giant 100-Gallon Poly Tank. If you need a tank for your dog, your kids, or a small patio where a 300-gallon tank will not fit, the Rubbermaid 50-Gallon is the right call. Pick the tank that fits your space and your climate, follow the maintenance routine in the buying guide above, and you will be soaking in your new stock tank pool by next weekend.