Now for this particular anvil, the hardest part to find will be the main plate for the top. On this design I need a plate of steel that is 1 inch thick, 8 inches wide, 18" long, Along with some assorted plate and pipe. For the shell, i'm going to use about 16 ft.² of 16 gauge sheet steel. I'm going to use a whole lot of rebar to reinforce the shell. for the filler, I'm going to use about 640 pounds of concrete.



As for tools, you're going to need,

Some sort of welder,

An angle grinder,

Something to cut the sheet steel with, such as an acetylene torch, plasma cutter, tin snips(not advisable), a bandsaw, or a crap-ton of cutting weels for the angle grinder.



The main other thing that you need, is to be a competent welder. I repeat, this is no beginners welding project, you need to be able to make a weld that can be hammered on for hours without breaking.



It should be noted that I got all the steel for this thing(accepting the top plate) for free as scrap, and you could probably do the same.



Scrapyards are a great place to get the main plate. I got one that is 1 1/2" x8"x 36" for $30. The ancient, mystical redneck junkyards one sometimes finds in the woods are a great source, or ask people if they have any old doodads you can salvage steel from.