One does not have to look very close to see that this wood support beam is very badly rotted. We can also see where the bottom of the beam has been patched previously with a wood block the width of the support pier.
The beam is rotted through and through to be precise. I honestly think the paint is the only thing of any structural significance remaining---that and "habit."
One traversing squirrel, or heavy wet snow, might alter the habits of this trellis however.
It is time to remove the trellis and avoid the potential fender bender.
This is the tenant's vehicle---I wonder who is going to be liable for repairs if the trellis falls?
Charles Buell, Seattle Home Inspections
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WA State, Home Inspector Advisory Licensing Board