Heavy Weighted Pressure Plate is a redstone sensor block crafted from two iron ingots placed side by side on a crafting grid, yielding one plate. Heavy Weighted Pressure Plate counts entities — players, mobs, dropped items, arrows, and experience orbs — rather than individual items, so a single stack of dropped sand registers as just one entity. Redstone signal strength scales by groups of ten: one to ten entities produce signal 1, eleven to twenty produce signal 2, and the output maxes out at 15 once 141 or more entities rest on the surface. Heavy Weighted Pressure Plate has a hardness of 0.5 and a blast resistance of 0.5, drops as an item when mined, and breaks fastest under a pickaxe though any tool works.

The strength-by-tens behavior makes Heavy Weighted Pressure Plate the tool of choice for measuring crowds of mobs or large item drops, where a gold Light Weighted Pressure Plate would saturate at signal 1 almost immediately. Survival farmers wire Heavy Weighted Pressure Plate to counting circuits that track how many chickens or villagers stand in a pen, since each mob contributes one entity to the count regardless of stack size. Heavy Weighted Pressure Plate was added to Java Edition 1.5 and Bedrock Edition 0.13.0, behaves identically across both editions, and does not burn or catch fire from lava. For any redstone build that needs to read a large number of moving entities, the iron plate delivers a steady, predictable scale that gold plates cannot match.