One set, or one better pan?
This is the whole question at $100, and the answer depends on exactly one thing: what is already in your cupboard.
Nothing, or one old pan.Buy the set. Two skillets, a griddle and a lidded 5-quart pot covers frying, griddling, braising and bread, and buying those four pieces separately costs more than $100 at normal prices. The weakness is the pot’s size — 5 quarts is the small end for a pot roast or a big sourdough boule — and the set has no accessories, so budget another ten dollars for a handle holder and a scraper.
A 10-inch skillet and nothing else. This is most people. Do not buy a second 10-inch pan in a box. The pieces that change what you can cook are the deep lidded skillet (an inch more wall means you can shallow-fry with the headroom the USDA asks for), the two-burner griddle (a batch of pancakes at once rather than four at a time), and the wok. A full comparison of the boxed sets is worth a read first if you are still tempted, because some of them count accessories as pieces.
Several pans, all heavy.Then the upgrade is weight, not shape. Lodge’s lightweight 12-inch publishes 6.14 lb against 7.89 lb for its classic 12-inch — a twelve-inch pan that weighs within a pound of a classic 10.25-inch. It is the only sub-$100 pan in our registry that buys you that, and it is thinner, so it stores a little less heat. Our lightweight roundup ranks the whole registry on published pounds.
How we ranked these
We own no units and run no tests, so nothing here is a hands-on verdict. The ranking is published specification plus buyer fit, with the maker’s own figures preferred over a listing’s whenever the two disagree — and in this band they disagree often. Lodge publishes 6.14 lb for the Blacklock 12-inch where its Amazon listing says 5.6 lb; Lodge publishes 14.49 lb for the covered deep skillet where the listing says 14.4. Those gaps are small. The ones that are not small get published as nothing at all: the Utopia set’s listing claims 5 lb for three skillets, when a single Lodge 10.25-inch is 5.36 lb on its own, so we print no weight for it and say why.
A piece also only appears here if the live price layer showed it under $100 on the date stamped in the intro. Nothing on this site carries a hardcoded price, and if the daily refresh stops, every number disappears and the buttons fall back to a plain link rather than an old claim.
What each shape is actually for
The griddle
The Pro-Grid is 20 by 10.5 inches and 13.5 lb, and it spans two burners — which is the point, because it means a whole batch of pancakes, bacon or smash burgers at once instead of in relays. Flip it over and you get ridges. Two real costs: the middle runs cooler than the ends on a domestic hob, and 20 inches does not fit a small sink. The alternatives, including the single-burner rounds, are in our griddle roundup.
The lidded deep skillet
Lodge lists this shape as its chicken fryer, and that is a fair description: 3.43 inches of wall instead of a skillet’s two and a quarter, five quarts of volume, and a self-basting iron lid included. The lid is also the thing you put on a grease fire. At 14.49 lb with the lid it is the heaviest pick here, and its flat floor is 8.75 inches — smaller than the classic 12-inch skillet’s 9.12 inches, which is the trade for the deeper walls. The whole category is ranked in our deep skillet roundup.
The wok
Cast iron woks are a compromise — thin carbon steel is the traditional material precisely because it responds fast — but if you cook on an electric or induction hob that cannot deliver a restaurant flame, stored heat is a reasonable substitute for power. Buy the 12.5-inch with the long handle rather than the big loop-handled 14-inch: at 9.61 lb you can tilt and shake it, which is half of what a wok is for.
The pizza plate
A flat 14-inch iron plate with two cast loop handles, 9.55 lb, that does the job people buy pizza stones for. Preheat it for half an hour and it browns a base properly; use it cold and you have baked a pizza on a heavy tray. It will not crack from thermal shock, which stones do. More on the shape in our pizza pan roundup.
What $100 does not buy
A machined-smooth skillet.The cheapest milled pan in our registry is above this ceiling, and the American heirloom makers start at roughly $130. Under $100 you get a sand-cast finish that smooths with use — see best smooth cast iron skillets for what the money actually changes.
French enamel. Enameled pots under $100 are good value and they braise the same food, but the enamel is thinner and the warranty terms are thinner too. Our dutch oven under $100 page ranks that shelf properly.
A set where every piece is premium.Boxed sets at this price are made of a brand’s entry-level castings, which is fine — Lodge’s entry-level casting is the pan this site recommends to almost everyone. What you will not find is a set of lightweight or machined pans anywhere near $100.
If you only buy one thing
Buy the Lodge 5-piece set if your kitchen is starting from nothing, and the Blacklock 12-inch if it is not. Those two cover the overwhelming majority of people who type this question: one of you needs breadth, the other needs the pan that is actually pleasant to lift.
And do the arithmetic before you commit to a box. Lodge discounts its single pans hard, especially in November, so a set can cost more than its contents bought separately. Add up the buttons on the pieces you actually want — the skillets under $50 page has the singles with live prices — and compare that total with the set’s. The answer genuinely flips week to week.