ThermiChef 16x16 Pizza Steel, 3/8" Thick, 27.5 lbs - Cooking Steel for Oven & Grill - Made in USA Review (2026)

Who this heavy steel is built for

This is a steel for bakers who have moved past a thin ceramic stone and want an oven that behaves more like a commercial pizza deck. At 3/8 inch thick and 27.5 pounds, it stores enough heat to bake pizza after pizza without a long cooldown between bakes, which matters most for anyone hosting a pizza night, baking sourdough on the same slab, or running a grill as a second oven. It is a good match for a household that bakes often enough to justify the upfront weight and cost, and for anyone who wants one surface that moves between the kitchen oven and an outdoor grill. Someone who bakes pizza only occasionally, or who has a small oven and limited storage, may find a thinner or smaller steel a better fit for the frequency of use.

What the specs mean for the bake

The steel measures 16 inches by 16 inches, is 3/8 inch thick, and weighs 27.5 pounds, and it is CNC laser cut from a single piece of low carbon steel made in the USA. Thickness is what drives heat storage, since a thicker slab holds more thermal mass and recovers its surface temperature faster between pizzas than a thin one, which is the entire point of choosing steel over a ceramic stone. The 16 by 16 footprint gives enough room for a full size home oven pizza with margin to spare, and the same surface doubles as a flat top for searing or griddle style cooking when it is not baking bread or pizza. Like other bare steel cookware, it needs to be seasoned and kept lightly oiled to resist rust between uses.

Living with a steel this heavy

Day to day, the steel needs a level oven rack or a stable grill grate, and 27.5 pounds means lifting it in and out of a hot oven is a two handed, deliberate task rather than something to do one handed with a towel. Most owners preheat it in place for an extended period before baking, since a slab this thick takes longer to come up to temperature than a thin stone, but it repays that wait with faster recovery between back to back pizzas. Because it ships as bare steel, care means wiping it down, keeping a light coat of oil on the surface between bakes, and avoiding soaking it in water, the same routine used for cast iron. Storage is the other real consideration, since a 16 by 16 steel slab this heavy needs a sturdy spot rather than a light shelf.

How it stacks up against other steels

Against the NerdChef Speed Steel, which is thinner at just under an inch but adds finned undersides and an integrated backstop to speed up heat recovery and stop pizzas sliding off the back, this ThermiChef leans on raw thickness and mass rather than fin geometry to hold its heat. Compared with the Pizza Steel Hack, which bundles handles and a wooden pizza peel into a similar 16 by 16, 3/8 inch package, this steel ships as the slab alone, so buyers who want an included peel will need to budget for one separately. The clear trade off across this class of thick steel is weight, and this model sits at the heavier end even among 3/8 inch competitors, which is the price of its heat retention.

Verdict and who should choose differently

For a household that bakes pizza often enough to want commercial style heat recovery, and that has the counter or oven space for a heavy 16 by 16 slab, this USA made ThermiChef steel earns our score of 8.8 out of 10 as a serious upgrade over a ceramic stone. It is not the pick for someone who bakes pizza only a few times a year, wants a lighter piece to lift with one hand, or needs a bundled peel and handles included in the box. Those buyers may be better served by a lighter steel or a kit style set, while anyone chasing maximum heat retention and steady back to back bakes will likely be happy with the trade off in weight.

Frequently asked questions