typical frame shape for an AC unit

[MelStud]

Is there a typical frame steel shape for supporting an AC unit of 1000 lbs weight? I got a C10 to work, but I don't know if for AC units it would be better to have W's or any other shape

 

[jplay2519]

On a roof? I typically use angles or channels to span between joists/beams to support mechanical equipment.

 

[JAE]

Depends on span, load distribution of the unit, what the shapes are supported by, how the connections are made, exposure, location with respect to wind/seismic loads...
There isn't really a possible answer to your question as it is so general in nature.





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[MotorCity]

For equipment, I usually provide a wide flange because it provides a larger surface to attach equipment to than the flange of a channel. This is especially true if the equipment is supported on a curb. You will never hear a contractor complain of having an area too large to attach a piece of equipment to.