I like the font for "construct," but I don't like the italicized font below it.I really like the idea behind this logo, but it is too busy. I prefer #11. I'm having trouble with the "c" in the main logo. Perhaps it can be more of a construction?
I like where you are going i think i like #25 the best. I just up loaded a photo called "posts" that i think the could work with this idea. One thing that i like about steel is the cantilevers that it allows in construtrion. I see that happing in your logo, I would like wood to look more like wood proper grainlines and steel to be a more dull gray or blackish, i do not use alot of stainless and do not usaly do shinny things.