In fact, ascending the thickness to 5 inches would elevate the load capacity of the pavement by around 50%. Parking lots that serve both passenger vehicles and trucks should have an asphalt thickness of at least four inches. I'd probably go 8" concrete and 1/2" rebar on 18" or 2' centers. However, for the pavement with a regular way for garbage trucks, delivery trucks, or other heavy vehicles, this varies. In general, 6 inch (150mm) slab thickness is considered for residential and commercial buildings with reinforcement details as per design. Make it at least 12 cm and . If you've got tracked equipment, pouring railroad rails in the concrete is really nice, (like some other guys suggested) with the top 3/8" just barely out of the concrete so you can still sweep it nice and roll creepers over it. Chemicals can be added to concrete to increase its strength in some cases, but doing so can shorten the life of your concrete by reducing its flexibility. Current standards for interstate highways, for example, call for concrete that is between 11 inches and 12 inches in thickness. For one to two light cars or trucks, you can generally get away with pouring less concrete. Increasing the thickness from 4 inches to 5 inches will add approximately 20% to your concrete cost, but will also boost your driveway's load-carrying capacity nearly 50% , according to the Tennessee Concrete Association. Thickening the structure along the perimeter by another will serve as an integral footing, adding strength where the loads are heaviest. . Methods used for finding slab thickness varies for different types of slabs. Frequent Heavy wheels loads / Large Deflections. Prices vary depending on what PSI strength you order. Using traditional design methodologies, standard-duty concrete lots required 7-inch of concrete over a 6-in subbase. Put on safety glasses and then measure, mark and cut 2-by-4-inch lumber with a circular saw to create forms for the new concrete pour. How to Expand Concrete to Existing Concrete Steps. How Thick Should A Concrete Driveway Be? Washing & screening Machines; Gravity Separators; crushing&milling equips; Magnetic Separators; gold leaching equips; flotation equips; Project Solutions Use a tape measure to measure the size of the area in which you are adding more cement. Commercial driveway aprons need to be at least 8 inches thick, and in many cases, the aprons will need to be as much as 10 inches in thickness. A mid size car, van or light truck is about 5,000 to 7,000 lbs. Is it reinforced, and if so, with what reinforcing? An additional two inches are recommended if your concrete will regularly receive heavy loads like motor homes or garbage trucks. The minimum thickness in most codes for a residential driveway is 4-inches of concrete on a prepared base. Depending on your location, the amount of traffic and the number of large trucks that may be driving on your parking lot, the thickness can vary dramatically. Lightweight vehicles are fine on a 3" to 4" thick pad, but a dump truck, forklift, or RV are heavyweights and require a thicker slab. Your concrete driveway should consist of slabs that are a minimum of 4 inches thick, however, you can increase it up to 6 inches thick as that is the minimum standard able to provide support for heavy vehicles such as an RV. There are a couple of considerations on how thick the concrete should be. For high-traffic areas that expect to see large trucks pulling through, plan on 12 inches of concrete. Advertisement Heavy But overall, concrete that is 4-6 inches thick should be sufficient for most residential projects. Answer (1 of 5): Assuming that : 1. Any concrete pavement, built of any thickness, will have problems on a poorly designed and . Richard Guy Studied at The University of West London Author has 3.4K answers and 1M answer views 4 y Related How thick should concrete be for heavy equipment? You can raise the thickness to 6-inches if the garage has heavy machinery in it or heavy shelving loads. I'd probably go 8" concrete and 1/2" rebar on 18" or 2' centers. If you've got tracked equipment, pouring railroad rails in the concrete is really nice, (like some other guys suggested) with the top 3/8" just barely out of the concrete so you can still sweep it nice and roll creepers over it. Concrete Thickness. Thickness of concrete slab depends on loads and size of the slab. Hereof, How much dirt is in a dump Drill pilot holes into the concrete using a drill with a masonry bit. Commercial driveway aprons should be no less than 8" thick and in most cases should be 10" thick to allow for trash trucks and delivery vehicles to pass without damaging the concrete. Commercial driveway aprons need to be at least 8 inches thick, and in many cases, the aprons will need to be as much as 10 inches in thickness. Standard concrete floor slab thickness inresidential construction is 4 inches. How to Expand Concrete to Existing Concrete Steps. Concrete thickness will vary depending on the soil the driveway is being installed on as well as the industry standards in your area. Obviously, in that situation, the concrete pavement requires extra strength and durability. The first step is to measure out the area where you wish to pour your driveway and dig it out to a depth of about 5 inches. To prepare the base,cut the ground level to the proper depth to allow for the slabthickness. For lesser loads, four inches. What is the bearing capacity of the sub grade the concrete is resting on? You can have a concrete driveway thicker than 6 inches, however, that would be overkill given that the concrete driveway's load-bearing capacity . Heavy. We had a contractor recommend a 6 floor and 4 ft cement walls which I'm guessing drives the price up substantially. Concrete thickness will vary depending on the soil the driveway is being installed on as well as the industry standards in your area. Florida requires 5" of concrete on a 6" base-subbase and 6" of concrete for heavy vehicles on a 6" base. Drainage Major Conclusions For Doweled PCC Here, in Denver Colorado, we have two types of soils we install concrete on. This leads one to believe a 10 thick slab would be perhaps excessive. Five to six inches isrecommended if the concrete will receive occasional heavyloads, such as motor homes or garbage trucks. The concrete slab should be at least four inches thick. A reasonable reinforcement is being provided in this concrete to take care of the normal expansion and contraction 3. Preferably, the concrete slab will need reinforcement such as rebar inside. This thickness should protect many mid-sized cars and even some heavier ones. 4,000 psi mix. Frequent Heavy wheels loads / Large Deflections. how thick should my garage slab be? How do you calculate slab load? how thick should my garage slab be? For example, one-way slab thickness . If your driveway is about to hold heavy vehicles, you need to make a thicker concrete slab. The average cost of a yard of concrete in the U.S. is between $113.00 and $147.00. Using stronger concrete can decrease that to 3" in some areas, although it won't decrease the cost much if any. Use a tape measure to measure the size of the area in which you are adding more cement. However, some garages may only require 4 inches of concrete, while others may need up to 9 inches depending on the weight they are going to bear. If you are driving a truck or you want to have a double garage for two smaller cars, . The pavement should form from slabs of at least 4 inches thick. Drainage Major Conclusions For Doweled PCC 2. In most cases, however, six inches of concrete is a typical thickness that provides you with long-lasting support. Whatever you plan on doing, your concrete slab should be at least 5 cm thick. How thick does concrete need to be to not crack? Moreover, the thicker the concrete slabs are the stronger the driveway is going to be. In general, 6 inch (150mm) slab thickness is considered for residential and commercial buildings with reinforcement details as per design. The cost of concrete for a 4 slab costs between $1.40 and $1.80 per square foot. Put on safety glasses and then measure, mark and cut 2-by-4-inch lumber with a circular saw to create forms for the new concrete pour. From as little as four inches to 12 or more inches, the exact thickness will depend on your location, your . This means that the required concrete thickness for an average Class A RV has to be at least 5 to 6 inches thick. That is the bare minimum of a concrete slab thickness. Concrete loading docks and dumpster pads should be at least 10" thick and in some cases 12" thick depending on the size and weight of the loads they bear. One Cubic Yard of Concrete: 4-inches thick - covers 81 square feet. How thick should be a Slab be for a parking? Answer (1 of 6): How thick should a concrete slab be to support a heavy truck? In most cases, garage floors with heavy use should use at least a 4500 PSI. We shall have a long bay. When heavy machinery sits on it, it needs to be thicker. The panel width shall be restricted to 2.4 m . . For flatwork, such as slabs-on-grade and driveways, a minimum thickness of four inches is required, but increasing the thickness to five inches can add nearly 50 percent to the load-bearing capacity. Port Aggregates has the best quality concrete for standard driveways, and we will deliver it to your home when you need it. For residential properties, a concrete slab needs to be at least four inches thick to comply with building codes. First, on the front range, the soils tend to be expansive soils so most contractors usually . In certain rare cases, the recommended thickness could be as much as 10 inches. If your driveway is about to hold heavy vehicles, you need to make a thicker concrete slab. First, on the front range, the soils tend to be expansive soils so most contractors usually . Home; Products. If you are driving a truck or you want to have a double garage for two smaller cars, . Drill pilot holes into the concrete using a drill with a masonry bit. The concrete mixture also needs to meet compressive strength requirements, which tend to be 3000 pounds per square inch. A properly prepared base and subbase will increase the driveway thickness by 4" to 8" too. Highways: The slab thickness on a highway depends on the volume of traffic. Make it at least 12 cm and . Medium Use If you intend to use the area for average-sized vehicles and/or medium to heavy trucks, the concrete needs to be six inches thick. using some basic thumb rules, regulation and guideline as per ACI code and IS code 456:2000, for concrete floor, It should be 4 to 12 (100mm to 300mm) thick concrete slab for parking, providing minimum concrete grade M10 to M15 and mesh bar embedded in concrete, 2 deep from top of floor slab. Any concrete pavement, built of any thickness, will have problems on a poorly designed and . With a standard 4-inch thick driveway, these joints will typically be placed 10 feet apart and take up about one-fourth of the driveway's total thickness. Also consider thickening the edges of the driveway by 1 or 2 inches to . With a standard 4-inch thick driveway, these joints will typically be placed 10 feet apart and take up about one-fourth of the driveway's total thickness. What is rebar and why is it important? Heavy-duty lots that were once designed with 8-inch of concrete over a 6-inch subbase now require 6-inch concrete over a 4-inch subbase. We have a strong sub-base already developed under the concrete. Five to six inches isrecommended if the concrete will receive occasional heavyloads, such as motor homes or garbage trucks. How thick should a concrete slab be for a carport? The average cost to pour a 12x12 concrete slab that is 4" thick is between $888 and $1,584, with professional labor and materials included.. 6 inches would be pretty standard. My husband thinks the floor should be more like 10. Whatever you plan on doing, your concrete slab should be at least 5 cm thick. Not only will this mix of concrete hold up for years, but it will be strong enough to withstand heavy machines and vehicles. Around 6 inches is the ideal thickness for a concrete garage or driveway. How much does a 12x12 concrete slab cost? A cubic yard of concrete covers 81 square feet at 4 inches thick. . Some parking lots that see seasonal or light use are only four inches thick. And how many wheel. How Thick Should A Concrete Driveway Be? To prepare the base,cut the ground level to the proper depth to allow for the slabthickness. Reading time: 4 minutes. In short, paving extra for additional concrete worth the maximized durability. Methods used for finding slab thickness varies for different types of slabs. Your floor must also be treated and sealed properly so that heavy loads like large trucks do not cause the concrete to crack. That is the bare minimum of a concrete slab thickness. a 6" thick concrete slab with a compressive strength of 3000 to 4000 psi on a . Port Aggregates has the best quality concrete for standard . 4. 4,000 psi mix. If your garage floor is going to see constant traffic from heavy vehicles, it is recommended that you pour your floor at least six to eight inches thick. You can pour a driveway that is only 4 inches thick and as long as no heavy vehicles use it you'll never have a problem. For flatwork, such as slabs-on-grade and driveways, a minimum thickness of four inches is required, but increasing the thickness to five inches can add nearly 50 percent to the load-bearing capacity. For interior spaces like ground-level floors and garage floors, consider concrete with a PSI between 2500 and 4500. An additional two inches are recommended if your concrete will regularly receive heavy loads like motor homes or garbage trucks. Panel Trucks 10 10.89 11.11 Semi-tractor Trailer 3 Axles 10 20.06 13.41 . Thickness of concrete slab depends on loads and size of the slab. Listed below are the typical recommendations for selected residential and Chicago commercial paving projects. 00:00. But a 5 inch thick concrete slab driveway can handle nearly any vehicle possible without a problem. Place concrete at a minimum thickness of 4 inches. Typically, a Class A RV can weigh on average anything from 33,000 to 36,00 pounds. From the PE (Professional Engineer) Civil Exam, in Basics of Concrete Pavement Thickness Design, the thickness depends upon traffic load, subgrade and climate, but city streets, secondary roads and small airports are typically four to seven inch thicknesses). Standard concrete floor slab thickness inresidential construction is 4 inches. Concrete loading docks and dumpster pads should be at least 10" thick and in some cases 12" thick depending on the size and weight of the loads they bear. A standard garage slab should be at least 4 inches deep, depending on the subgrade condition (100 mm). Hunker may earn compensation through affiliate links in . For concrete pavement with light traffic, contractors prefer the standard thickness of 4 to 6 inches. Six inches of thickness should be more than adequate for areas where heavy equipment will be driven and parked. On top of ensuring that your driveway has an even thickness, your contractor will also install joints to prevent cracking. 03:06. Highways: The slab thickness on a highway depends on the volume of traffic. For small cars the concrete should be at least four inches thick. Parking Heavy Industrial Vehicles Parking lots that serve . If you're planning to park an RV or trailer with a heavy load in the carport then I'd suggest 8 inches thick to be safe.