I'm a one-man metal fabrication shop in South Corvallis. I primarily work with steel. About half of my work is repairing or modifying existing things. The other half is designing and building projects for my customers.
Sometimes people are surprised to find that something they want me to make will be much cheaper for them to buy off the shelf. I am more cost-effective in situations that have some element of custom-design to them. Railings, for instance, are all fairly specific to their location and have to be sized and shaped accordingly.
My nominal rate for billable hours is $40/hr in my shop, or $60/hr in the field. For big projects, I will give you a quote based on my estimate of time it will require.