Built Low.
Built to Outlast. Reverse Flow, Every Build — Tailgate Pit to Gooseneck Rig

Southwest Gallon Smoker Grill builds custom reverse-flow smokers, grills, and catering trailers on heavy-gauge steel — no thin gauge, no shortcuts, no middleman. Every unit is seam-welded, pressure-tested, and seasoned before it leaves the shop.

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60+
Models Configured
20+
Years of Burn Time
Lifetime
Chamber Warranty
Row of Southwest Gallon custom reverse-flow smokers, trailers, and grills lined up at our Houston shop
Seam-Welded · Tested · Seasoned

Why Southwest Gallon

Four things we will never compromise on.

Reverse Flow Only

Every chamber runs a full reverse-flow tube plate. No hot spots, no rack-to-rack variance. Temperature stays consistent within ±10°F across the full cook surface.

Gallon-Gauge Steel

Surplus-grade tank bodies and heavy plate fireboxes hold heat better, last longer, and produce a more even cook. Thin-walled store-bought smokers don't survive extreme heat and heavy commercial cooks.

Lifetime Chamber Warranty

The welds, the chamber, the seams — warranted for life against burn-through and structural failure. If you ever wear one out cooking, we'll repair or replace it.

Built to Tow

Every highway-rated trailer is built with a boxed frame, Dexter axles, and DOT-grade wiring. Pull it across the state tomorrow — or across the country next month.

The Secret Sauce

Reverse Flow, Explained.

Traditional horizontal smokers flood one side with heat and starve the other — you've got "the good rack" and "the warm rack." Reverse flow fixes that permanently.

01

Fire Goes In The Far End

Firebox is mounted on the opposite end of the stack. Smoke and heat travel forward under the steel plate rather than directly up the flue.

02

Heat Radiates Through The Plate

Hot gases flow the full length of the cook chamber, radiating through the floor plate and wrapping every rack with even, convected heat.

03

Smoke Exits Back By The Fire

Gases travel the full rack line twice — under the plate, back across the top of the meat, then out the stack near the firebox. Double the contact, double the smoke flavor.

04

You Cook. You Don't Rotate.

Upper and lower racks cook within the same 10-degree window. You fill the smoker to capacity at 10pm and sleep until 6am without rotating a single rack.

Call / Text +3055751743
Email info@sowthwestgallonsmokergrill.com
Shop Hours Mon–Fri · 8am – 5pm CT
SW Gallon shop owner standing next to a just-completed custom reverse-flow smoker trailer

Our Story

One welder. One shop. Twenty years of smoke on the shirts.

Southwest Gallon grew out of the same story you've heard a hundred times: a couple of guys welding smokers out of a two-car garage for friends and family on the weekend, until the orders started showing up faster than they could burn the wire. What we didn't outgrow was the garage-level obsession with fit and finish.

There are no production lines, no overseas components, no stamped parts. Every unit is cut, fitted, welded, plumbed, painted, and tested by two hands in our shop between Midland and Fort Worth. If the cook surface has a hot spot, it doesn't leave. If a weld is porous, we grind it and re-run it. If the paint doesn't pass the 1200°F oven test, we strip it and reshoot it.

We build one smoker at a time because that's the only way to build one that lasts.

  • Lifetime chamber warranty — burn-through and structural failure are on us, forever.
  • Pressure-tested before paint — every seam, every joint, every pipe gets 20psi of soapy water and a flashlight.
  • DOT-ready highway trailers — Dexter axles, treated frames, sealed wiring, pull tomorrow.
  • Owner-to-owner quotes — you talk to the welder, not a sales floor. One point of contact from deposit to delivery.
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