How thick should a concrete slab be for an above ground pool?

Asked By: Jawad Llerena | Last Updated: 25th May, 2020
Category: sports snooker and pool and billiards
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Concrete slabs vary from 4 to 8 inches thick. Even a low-strength, 4-inch concrete slab can withstand a weight of 1,700 kilograms per square centimeter, or 24,123 pounds per square inch. This is more than strong enough to support an 18-foot by 4-foot-deep round pool.

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In this regard, what do you put under an above ground pool on concrete?

Solid Foam Use rigid urethane foam sheets for pool pads, not soft upholstery foam. Solid foam insulation can be an ideal on a concrete surface. One of the benefits of solid foam insulation is that it's made of polystyrene or polyurethane and thus is easily cut and shaped.

Also Know, how much weight can concrete floor support? (We don't worry so much about the concrete because even crappy concrete can withstand 1-2000 lbs. per square inch.) However, the soil can only withstand 1500 lbs. per square foot, unless you live in a swamp, like me.

Also, what is the best thing to put under an above ground pool?

Sand Pad. Sand spread out on your pool site is a traditional method of installing an above ground pool. Just like commercial pads, you can use the sand alone or place it on top of concrete. However, you should note that sand might make your pool to be unstable when on top of concrete.

What is a gorilla pad for pool?

Gorilla Pads are pre-cut floor pads designed to protect and cushion the bottom of above ground pools. Unlike old pool foam padding, which can be easily be cut or pierced by grass, roots, or rocks under your above ground pool liner, Gorilla Bottom pool floor padding is impervious to almost any sharp object.

27 Related Question Answers Found

Should you put a tarp under an above ground pool?

It's OK to use a tarp under the sand but not in place of it. A tarp will allow all the lumps and bumps of a dirt base to show through into the base of your pool. With just a tarp you still have to have a cove for the pool to be safe. The cove can be dirt, sand or foam, but it has to be there.

How do you prepare the ground for an above ground pool?

Yard Preparation
  1. Step 1: Placement. The first step is deciding where you want to place the swimming pool in the backyard.
  2. Step 2: Clean the Area. Remove all items that could make it difficult to secure a proper foundation for the pool.
  3. Step 3: Measure.
  4. Step 4: Start Digging.
  5. Step 5: Level the Pool Hole.
  6. Step 6: Wait 24 hours.

Is it OK to put an above ground pool on concrete?

As long as it's flat and level, a concrete pad is a perfect base for an above-ground pool. Homeowners who choose to install one of these pools often set it directly on the ground, but it's a better idea to place it on a concrete pad.

Can you put a pool on grass?

Installing an above-ground pool on a natural grass lawn is not a good idea, particularly if you plan on taking down the pool for part of the year. Since natural grass does get muddy and can be quite slippery when wet, there are also issues around safety and, of course, tracking mud and wet grass into the house.

How do you prepare the ground for an Intex pool?


Use a line level on the string to measure for level at 12-36 points around the pool. Use flat shovels or a sod cutter machine to remove turf, and lower the high spots. Add a one inch layer of sand. The Wrong Way: Raise the low spots by adding sand – not checking for level.

Can Intex pools be put on concrete?

An Intex Pool would install nicely on concrete, all you would need would be a pool pad of some sort to set it on. The only problem is that there is no way I can think of to level the area. Installing a standard steel wall above ground pool on un-level concrete, however, is pretty easy.

Do you need to put sand under an above ground pool?

Sand is the recommended base material upon which an aboveground pool should sit. Sand is used under an aboveground pool to protect the pool's vinyl liner from rocks and objects that could tear the liner. Also, sand under an aboveground pool acts as cushioning for its floor, making it more comfortable for feet.

Should I put sand under my Intex pool?

I use a little sand under Intex pools, to cushion the bottom, but not for leveling. You can then just use a ground cloth over the dirt or you could cover the area with an inch or so of sand. A twenty four foot pool would probably use about 3 tons of sand.

How many bags of sand do I need for a 15 foot pool?

For a pool that is 15ft x15 ft. which works out to be 225 square feet, for every inch of sand for your 225 sq. ft. area, you will need 38, 50lb bags of sand.

Can you put plywood under above ground pool?


Plywood. It's costly to buy enough plywood to place directly beneath the entire pool. You also create the risk of a wood splinter puncturing the pool liner. Instead, measure the size of the pool's leg supports and cut plywood pieces that can sit directly under the legs.

How do I keep grass from growing under my pool?

Grass growing through liner
  1. Clear the area under the pool of all grass, it helps to do so out two or three inches beyond the pool to keep vegetation from growing under your pool.
  2. Use an under pool liner barrier of some type, such as a pool ground cloth.
  3. Speak with an expert at a local pool store for additional suggestions.

What is a gorilla pad?

Gorilla Pad is high-quality pool floor padding protects the bottom of your swimming pool liner. While Gorilla Pad looks like felt material, it effectively stops glass, grass, and rocks from coming up into your above ground pool liner. Gorilla Pad virtually eliminates vinyl pool liner bottom leaks.

Can a floor collapse from too much weight?

The answer is that, absolutely, weight can cause a floor to collapse. Even within a floor, there are wide variations in weight limits. For example, the floor can handle much more weight right over the joist than it can between joists. The floor is also stronger where it attaches it a wall.

Can my floor support a 55 gallon aquarium?

Aquariums up to 55 gallons can be placed almost anywhere without much worry at all. Many tanks larger than 55 gallons and no more than 125 gallons will be okay, if they are placed in a good structural location and your floor framing is free from significant defects.

How much weight can a 2x8 joist hold?


some of it gets pretty technical in nature, and mostly relates to pounds / square foot of loading. 2x6s are generally used for ceiling joists, esp since you said 24" oc and reallllly short spans only (5 or 6 feet ). Most floor loads would be a minimum of 2x8 @ 16" oc and most preferbaly 2x10.

What is the difference between 3000 psi and 4000 psi concrete?

What's the difference between 3000 Psi concrete VS 4000 Psi concrete? The MAIN difference is in the amount of cement used. A cubic yard of concrete, whether it's 3000 psi or 4000 psi, weighs about 4000 pounds (when you include the weight of water).

Can my floor support a 75 gallon aquarium?

A 75 is 48" wide, when running perp to joists will span at minimum 3 joists. Tank will weigh close to or over 700 lbs. Most floors in newer homes or older ones should hold a 75 gallon tank without any issues!