The best in affordable commercial quality, this pie tin measures 10″ at the top, outside rim; 9″ at the top inside rim; and 8″ at the inside bottom/base. Hard anodized aluminum. Heavy 18-gauge anodized-aluminum pie pan features a .5″ flat rim for perfect crust every time. Fifty percent deeper than most pie pans, the anodized aluminum is also non-reactive with acidic and dairy ingredients.