Slab Capacity Chart
NOTE: Slab capacities are based on mesh over joists raised
*Loads indicated are the total allowable service load that
the slab can carry, Ws, and are determined from the conservative
Ws = (Wf – 1.25 + D) / 1.5 + D
Where: Wf = Factored Total Load
D = Minimum Dead Load (weight of slab + joist)
It is important to separate the total uniform loads from
other special loads such as wall loads, concentrated loads,
line loads, point loads, and partial loads, which should be
shown on the drawings and will be added to the design requirements
Hambro® can accommodate special loads in several different
- Increasing slab thickness with the use of Hangerplate™.
- Adding another layer of mesh.
- Adding a joist under the load.
- Using headers to transfer the load to adjacent joists.
The method of choice will depend on the type and extent of
special loading conditions. We stand ready to assist the professional
engineer in his determination of the method to use to accommodate
any special loading conditions.