Omid, I bought same GI Metal steel andiron. Itís already falling apart after 2 weeks of use. Not a good product
Dear Pulcinella, that is why I stated in a previous post, "I think a better alternative is to use firebricks, which are more durable than this particular andiron manufactured by GI Metal." Although GI Metal could have used a more refined grade of steel in building these, my Andiron is still working well. Nevertheless, I stopped using it because of the rust-like impurities it kept shedding on the oven floor. No more!
Iím gonna try bricks now. I was wondering how you arrange them, you use 1 or 2 or more?
I use two firebricks and position them more or less like the way I positioned the steel andiron on the oven floor. (See the 1st picture below.) The two firebricks stand side by side, resting on their widths on the oven floor. They would look more or less as represented in the diagram below. (See the 2nd picture.) This arrangement gives me a degree of flexibility as to how I position wood logs on the bricks and accordingly adjust the emission and intensity of fire per the feedbacks I receive from (1) how the pizzas bake and (2) the thermal state of the oven throughout the day. You should try to find out what arrangement suits your oven.
Craig's advice should work as well. Make sure the quality of the steel you buy is up to the task. Good day!