This fireplace grate is made of durable black steel to ensure durability fire after fire. Its contoured design not only allows air flow underneath, but keeps burning logs from rolling out your fireplace, while you add more logs when needed. Raising the firewood off the floor of your fireplace with this bar grate will not only create a hotter fire but will protect the fireplace from direct contact with flames. With 4 1/2" clearance and tapered width, this 7 bar grate is perfect for pre-fab and wood burning fireplaces. For efficient heating, add an ember retainer to this steel grate.