I bought two lamp posts at Lowes and I want to install them in our back yard flower garden. The lamp posts are about 6 feet tall and made of some sort of very light metal. I'd estimate they weigh no more than 20 or 30 pounds each - maybe even less. The bases of them are about a foot in diameter with three semetrically placed bolt holes for mounting. The ground where I want to put them is mulch covered soil.
I was thinking about maybe buying a wooden post that was wide enough in diameter to bolt the lamp post directly into the wooden post and cutting off about 2 or 3 feet of it and using post hole diggers to dig a hole such that the wooden post is flush with the ground, then bolting the lamp post directly into the wooden post.
That was just one thought I had. I guess concrete is another idea, but how do I do that? How deep do I dig the hole for the concrete? Do I dig it deep and narrow like a post hole or wide and relatively shallow? And do I make it cubical or bowl shaped? And do I need to line it with something or just poor the concrete right in? And what is the best way to ensure that the concrete is level before letting it dry?
I'm really clueless as to the right way to do this job. I can tell you that power isn't going to be a problem, it's already run and terminated very near the location. I just don't know how to get the lamp posts to stand up, permanently, in the dirt.
Obviously I'm not very knowledgable about matters of home improvement. Any advice would be appreciated.
Thanks in advance.