What size pellet grill do you need? The published numbers, counted honestly

For two to four people, a pellet grill in the 500 to 650 square inch class covers weeknights and a weekend rack of ribs with room left over. Regular batch cooks push you into the 700s, and overnight briskets with sides for a crowd are what the 900-plus class is for. Bigger is not safer: the extra grate costs money up front, space on the patio, and pellets every time you heat it.

The four grills on this page put real numbers on those classes. Every figure comes from the makers' own product pages: traeger.com read on 26 and 28 July 2026, pitboss-grills.com read on 25 July 2026. Where a maker publishes nothing, this page says so instead of guessing.

How do makers count cooking space?

Differently, and the difference is the trap. Traeger publishes each rack separately and a total: the Westwood is 428 square inches on Rack 1 plus 225 on Rack 2 for 653, and the Woodridge Pro is 585 plus 385 for 970. Pit Boss publishes one figure across both tiers of racks with no main grate broken out: 518 on the 500 FB2, 747 on the 700 FB2.

So all four totals count every shelf, and on that basis they line up honestly: 518, 653, 747, 970. What you cannot read off the Pit Boss numbers is the size of the grate your burgers actually sit on. Traeger tells you. Pit Boss makes you look at the product photos.

The main grate is the number that limits anything you flip. Second-tier racks hold ribs, thighs and sausage, and they earn their keep on a smoke day. They do not help you turn twenty burgers.

How much space do two to four people need?

428 square inches of main grate, the Westwood's Rack 1, is the honest benchmark for a family. Two chickens, a pair of rib racks cut in half, a full batch of burgers. The 225 above it catches overflow. If most cooks are four plates or fewer, this class is the right buy, and the Westwood review covers what else that grill trades away.

The Pit Boss 500 FB2's 518 across two tiers sits in the same class. Its catch is not the grate, it is the 5 pound hopper, and the next section is about why those two numbers have to be read together.

When do you need 700 square inches or more?

When the batch is the point. A dozen racks of ribs for a party, pork shoulders in multiples, sausage by the grate-load. The 700 FB2's 747 across two tiers is the workhorse class, and the 700FB2 vs 500FB2 comparison settles which Pit Boss fits.

The Woodridge Pro's 970 is the class above that: 585 on the main grate alone, which is more flipping room than the Westwood's two racks combined. That is brisket-and-sides scale. If you host, it earns its footprint. If you mostly feed four, most of that steel heats up empty, and the Woodridge Pro review is honest about who should not pay for it.

Does the hopper have to match the grate?

Yes, and this is the size number buyers skip. The controller holds temperature only while pellets reach the fire, so the hopper decides how long a cook runs unattended. The four hoppers here: 5 pounds on the 500 FB2, 18 on the Westwood, 21 on the 700 FB2, 24 on the Woodridge Pro.

No maker on this page publishes a consumption figure, so no hours appear here. Burn rate moves with the set point, the weather and the pellets. Read hopper pounds as margin, not hours.

The mismatch to avoid is a big grate on a small hopper. A 518 square inch grill full of pork shoulder is a long cook, and 5 pounds of margin makes it an evening cook with a refill, not an overnight one. If low and slow is the plan, weight the hopper as heavily as the grate.

What does the wrong size cost you?

Too small costs you twice: a second batch on every party cook, and a replacement grill two seasons in. Too big costs up front, then keeps costing. A bigger barrel is more steel to bring to temperature and more space to hold there, fed from the same hopper.

Footprint is the cost the spec sheets mostly hide. Neither Traeger barrel has assembled dimensions on its product page, and Pit Boss publishes none for the FB2 pair either. Weights are the tell that these are stay-put machines: Traeger lists 116 pounds for the Westwood and publishes two conflicting figures for the Woodridge Pro. Measure the patio corner before the class debate settles anything.

The shortlist by size

Feeding four: the Westwood, with the 500 FB2 as the cheaper two-tier alternative if its 5 pound hopper fits your cook length. Batch cooks: the 700 FB2. Hosting and overnight cooks: the Woodridge Pro, and read the Woodridge Pro vs 700FB2 comparison before paying the Traeger premium.

Every model here, plus the cabinets this page skipped, sits in pellet grills and smokers with specs and current prices.