Typically we like to limit the weight to about 40 lb/sqft on an unknown 4″ slab. In most cases you can go to 80 lb/sqft in isolated spots, but unless you know roughly what the soil bearing and reinforcing is for that slab you might be looking at cracking.
How Much Weight Can a Concrete Slab Hold?
Concrete slabs are incredibly versatile and can be used in many different ways, from sidewalks to patios to driveways.
But one of the most important questions people have when considering a concrete slab is how much weight can it hold?
The answer to this question is not as straightforward as it may first seem, as there are many different factors that affect the strength of a concrete slab.
The most important factor is the type of concrete used and the quality of the mixture. The higher the quality of the concrete, the more weight it can hold.
In general, a concrete slab should be designed to hold between 2,000 and 4,000 pounds per square foot. However, this number will depend on the strength of the concrete mix and the size of the slab.
A thicker slab will be able to hold more weight than a thinner one, and the density of the concrete will also affect how much weight it can support.
In addition to the strength of the concrete, the soil beneath the slab will also affect how much weight it can hold.
If the soil beneath the slab is sandy or loose, it will not be able to support as much weight as the same slab on a solid foundation. To determine exactly how much weight a concrete slab