Hi,
The style of my home is a Highranch bungalow.
It has a 6x10 center beam made of wood.

There are 3 steel posts supporting the beam.
The stairs in the middle of the home are between 2 of the 3 posts.
The span between these 2 posts is 16 feet.

Under the stairs which lead to the main level from the entrance is a 2x4 wall directly underneath the wooden beam. Should I assume that this wall is loadbearing - or is the 16 foot span for a 6x10 acceptable?

I hope that all makes sense