The Ultimate Quad Stacker Guide: Ingredients, Customizations, Delivery, Nutrition & More

At its core, the Quad Stacker is a construction of four 100‑gram flame‑grilled beef patties, each seasoned with BK’s signature blend of salt, pepper, and a hint of smoked paprika. Between the first and second patty you’ll find a slice of American cheese, then another layer of cheese after the third patty, and a final melt on top of the fourth. The sandwich is finished with toasted sesame seed buns, a generous drizzle of the King Sauce (a mayo‑based spread with pickles, mustard, and a dash of garlic), shredded lettuce, sliced tomatoes, and a few rings of onion. The result is a balanced mix of savory meat, creamy cheese, and fresh crunch.

If you order a standard Quad Stacker, you’ll also get a side of BK’s classic fries and a medium soft drink, though the burger itself can be purchased a la carte. The whole assembly is designed to keep the juices locked in, so the bottom bun stays sog‑free while the top bun gets a light toast for that satisfying snap.

Burger King’s “Have It Your Way” philosophy shines with the Quad Stacker. Want extra heat? Add sliced jalapeños or swap the King Sauce for the Spicy Buffalo sauce. Prefer a smoky twist? Ask for smoked Gouda instead of American cheese and a dash of BBQ sauce. Vegans can replace each beef patty with the Impossible™ plant‑based patty, and the cheese can be swapped for a dairy‑free slice where available.

The app also lets you remove any component—skip the onions, go bun‑less, or request a lettuce wrap for a low‑carb version. Each change recalculates the nutrition profile in real time, so you can see how a single swap impacts calories and macros.

Delivery availability depends on your zip code, but in most major metro areas the Quad Stacker shows up on the Burger King app, Uber Eats, DoorDash, and Grubhub. When you place an order, you’ll see an estimated delivery window of 30‑45 minutes, plus a small delivery fee that varies by platform. Some locations offer free delivery if you hit a minimum spend, typically $20. Keep an eye on the app for “express” options that guarantee delivery within 20 minutes for an extra charge.

If you’re outside the standard delivery radius, you can still enjoy the burger via curbside pickup. The app will generate a QR code you scan at the drive‑through lane, and a team member will hand you the order without you ever leaving your car.

BK runs a rotating set of deals that often include the Quad Stacker. Right now, the “Stack & Save” promotion bundles the Quad Stacker with a medium fry and drink for $9.99, a $2 discount off the regular combo price. Another limited‑time offer, the “Double Stack Challenge,” lets you add a fifth patty for just $1 extra—perfect for those who think four isn’t enough.

Students can tap into a 10% discount through the BK student discount program, and loyalty members earn 50 points per Quad Stacker purchase, which translates into future free items. Always check the “Deals” tab in the app before you order; many promotions are region‑specific and may require a promo code.

One standard Quad Stacker clocks in at 1,180 calories, 70 grams of fat (28 grams saturated), 2,200 mg of sodium, 64 grams of carbohydrates, and a hefty 72 grams of protein. The King Sauce contributes most of the sodium, while the cheese adds saturated fat. If you swap beef for plant‑based patties, calories drop to about 950 and saturated fat falls to 12 grams, but sodium may rise slightly due to the patty’s seasoning.

For a lighter version, ask for a single patty, remove the cheese, and replace the sauce with a mustard drizzle. That cuts calories by roughly 400 and reduces fat by 30 grams. The burger also provides 20% of the daily recommended iron intake, thanks to the beef, and a modest amount of calcium from the cheese.

Compared to the Whopper, the Quad Stacker delivers nearly double the protein and a substantially higher calorie count, making it the go‑to choice for serious appetite seekers. The Bacon King, another heavyweight, has three patties and more bacon, but it falls short on cheese layers—only two slices versus the Quad’s three. In terms of price per gram of protein, the Quad Stacker is surprisingly competitive; you get more meat for a similar cost, especially during the “Stack & Save” deal.

If you’re after a novelty item, the Triple Stacker (three patties) offers a middle ground, but the Quad remains the pinnacle of BK’s stacked lineup. Its combination of four patties, three cheese layers, and the signature sauce creates a flavor profile that’s richer and more balanced than the more sauce‑heavy King XL or the simpler Rodeo Burger.

When you order the Quad Stacker combo, you’ll automatically receive a side of BK’s classic shoestring fries, seasoned with a light pinch of sea salt. For a healthier twist, the app lets you swap fries for a side salad or apple slices. Some locations also offer onion rings or mozzarella sticks as an upgrade, adding an extra crunch that pairs well with the burger’s richness.

If you’re feeding a group, consider ordering a family bucket of fries—large enough to share among 4‑6 people—alongside the Quad Stackers. The bucket comes with a dipping sauce of your choice, from classic ketchup to tangy BBQ, ensuring everyone gets a complementary flavor.

The Quad Stacker debuted as a limited‑time offering in the summer of 2022, and BK has brought it back each year for a few months, typically from May through August. However, in 2024 the chain announced a permanent shelf‑life for the burger in most flagship locations, while smaller outlets may still treat it as a seasonal item.

Special editions occasionally appear—like the “Spicy Quad” with ghost pepper sauce or the “Cheese‑Lovers Quad” that adds a fourth slice of cheese. These variants are usually tied to promotional periods such as “National Burger Day,” so keep an eye on the app for pop‑up announcements.

Planning a game night or a corporate lunch? Burger King’s catering menu includes the Quad Stacker in bulk. You can order up to 20 Quad Stackers in a single order, each packaged individually for easy distribution. The catering package also bundles a large tray of fries, a selection of dipping sauces, and a variety of drinks.

To place a catering order, use the “Catering” tab in the BK app or call the dedicated catering line. Expect a 48‑hour lead time for large orders, and ask about a “custom tray” option where you can mix Quad Stackers with other menu items for a more diverse spread.

The Quad Stacker isn’t just about size; it’s about balance. Four patties could easily become a greasy mess, but BK’s engineering of the sandwich—layered cheese, sauce placed strategically, and toasted buns—creates distinct bite‑by‑bite flavors. The flame‑grilled patty adds a smoky char that cuts through the richness of the cheese, while the fresh lettuce and tomato provide a crisp contrast.

Another differentiator is the flexibility of the build. Few burgers allow you to replace every meat patty with a plant‑based version without compromising the structural integrity. This makes the Quad Stacker one of the few high‑calorie, high‑protein items that also caters to the growing flex‑itarian crowd.

While the classic Quad Stacker is all‑beef, Burger King has responded to demand by offering the Impossible™ Quad Stacker in select markets. This version swaps each beef patty for a plant‑based patty that mimics the texture and flavor of meat. The cheese can be changed to a dairy‑free slice where available, and the King Sauce can be replaced with a vegan mayo.

If a fully plant‑based Quad isn’t on the menu in your area, you can still build a “Veggie Quad” by ordering four veggie patties (like the Beyond Burger or a black bean patty) and layering them with vegan cheese and sauce. The result is a burger that retains the Quad’s iconic structure while aligning with vegetarian or vegan dietary preferences.

For those who prefer not to wait for delivery, the BK app’s “Pickup” feature lets you place your order ahead of time and select a specific window—usually 15‑minute slots. When you arrive, a staff member scans your QR code and hands you the order within minutes. To cut down on wait time, choose “Express Pickup” where the kitchen prioritizes your order as soon as you arrive.

If you’re ordering for a group, you can use the “Group Order” function in the app. Each participant adds their items, and the system consolidates everything into a single order, reducing the chance of mix‑ups at the counter.