Nexgrill Gourmet Pro 6-Burner Assembly: A Two-Person Build Sequence for the Biggest Cart Grill
A step-by-step plan for staging the cart solo, seating six burner tubes correctly, and running a first-fire leak test before the party.
In This Article
Stage First, Lift Second
Side Burner Goes On Early
Yellow Flame Means Reseat
Why the 6-Burner Gourmet Pro Build Is a Sequencing Problem, Not a Screwdriver Problem
The Gourmet Pro 6-burner is the largest cart grill most households will ever assemble themselves, so the build succeeds or fails on order of operations, not wrench speed. Nexgrill has shipped cart-style gas grills from California since 1993, and the pattern holds: the firebox and lid arrive largely pre-assembled, and the real work is staging the cart, mounting the side burner early, seating six burner tubes perfectly, and routing ignition wires clear of hot metal.
This guide targets the common scenario: one person starts Friday evening, a helper arrives Saturday, and a party looms the following weekend. Every step keeps the firebox off the cart until you have help and keeps the side burner from becoming a blind reach-around later.
Nexgrill's Gourmet Pro, Deluxe, and Daytona lines share cart architecture and often look alike in photos. Check the rating label on the carton and the model plate before turning bolts - the sequence is similar but hardware counts are not.
One Person Tonight, Help Tomorrow: How Far Can You Get Solo?
A solo builder can safely finish the cart, casters, door frames, and side shelves. The firebox and lid assembly is a different category: a 100-pound-class component (estimate for this size class; confirm the weight on your model's product page), and lifting it onto the cart without scratching the cart or dropping it onto the valve manifold is the riskiest moment of the build. Stop at the empty cart and resume when your helper arrives.
What Should Be Unpacked on the Patio Before You Cut the Tape?
Lay out a 10-by-10-foot work area on a flat, hard surface - not grass, which hides dropped screws. Have these tools ready; the carton does not include them:
- #2 Phillips screwdriver
- 7/16-inch and 1/2-inch wrenches (or an adjustable wrench)
- Pliers
- Box cutter
- Magnetic parts tray
- Small flathead screwdriver for ignition clips
You will also need a standard 20 lb LP cylinder, not included. A propane exchange at a U.S. big-box store has run roughly $20-$25 in 2024-2025, varying by region - budget for it before the weekend.
How Long Does a 6-Burner Gourmet Pro Build Take?
| Builder profile | Estimated time | Notes |
|---|---|---|
| Two adults, first cart grill | 2-3 hours | Includes unpacking, sorting, and a leak test |
| Two adults, second build | About 90 minutes | Familiar with hardware bags and burner seating |
These are estimates, not guarantees; cold weather, missing tools, or a late helper will stretch them.
Reading the Hardware Bags: Sorting by Assembly Step, Not by Bolt Size
Nexgrill groups hardware by assembly step, not fastener size. Do not dump every bag into one pile. Set out one tray per numbered step and open only the bag for the step you are on, so a dropped lock washer does not become a 20-minute hunt.
Step 1: Build the Cabinet Cart, Casters, and Doors Loose Before Tightening
Install the casters first so the cart can be rolled into position. Assemble the side panels, bottom shelf, and door frames finger-tight, then check that the cart sits square and both doors close flush before fully tightening any bolt. Over-tightening early is the most common reason a door rubs the frame later.
Step 2: Fit the Side Burner and Route Its Valve Line While the Firebox Bay Is Empty
The side burner mounts at the far end of the cart, and its valve and ignition wires run behind the firebox bay. With the bay empty you can stand inside the cart footprint and see the routing path; once the firebox is seated, you are reaching blind. Fit the side burner now, run its line, and leave the manifold connection for after the firebox is in.
Step 3: Two-Person Lift of the Firebox Onto the Cart
With the helper, lift the firebox by the lid handle and rear ledge - never by the valve controls. Set it down so the valve orifices point toward the front of the cart, and lower it straight down; do not slide it across the cart rails. Confirm it sits level and the holes align before installing fasteners.
Step 4: Seat All Six Burner Tubes Over the Valve Orifices
This step decides whether the grill lights cleanly. Each burner tube has an air shutter at one end that must slide over its brass valve orifice. Work front to back, one burner at a time, and confirm each tube is fully seated and level. A half-seated tube produces a yellow flame, sooting, or no light at all.
The number one gas cart grill assembly error is a burner tube that misses its valve orifice. Check each one by feel and by sight before installing the heat tents.
Step 5: Route the Ignition Collector Wires Off the Firebox Edge
Ignition collector wires run from each burner to the push-button module. Route them along the inside wall of the firebox, away from the firebox edge and any metal that will get hot, and secure them with the supplied clips. A wire touching the firebox edge will short out or melt on first fire.
Step 6: Regulator, Heat Tents, Grates, and Drip Tray Placement
Attach the regulator and hose to the manifold, then set the heat tents over the burner tubes with the peaked side up. Drop in the cooking grates, slide the drip tray into its slot, and hook up the LP cylinder. Leave the lid open until you complete the leak test.
Try Comparing Two Products Side by Side Below to See Which Fits Best:
Still deciding between this 6-burner and a smaller Gourmet Pro or Daytona cart grill? Compare them below to see how build scope, burner count, and side-burner setup differ before you commit.
Once You've Weighed Two Options Against Each Other, Here's What Else Matters
The comparison tool shows spec-level differences; it cannot show how they play out on the patio at 9 p.m. with one person and a flashlight. The 6-burner's extra real estate and side burner are worth the longer build only if you routinely cook for a crowd - otherwise a 4-burner Gourmet Pro covers the same recipes with half the assembly steps.
The First-Fire Sequence: Leak Test, Burn-Off, Then One Burner at a Time
Before lighting anything, mix a few drops of dish soap in a spray bottle of water and coat the regulator-to-cylinder and hose-to-manifold connections. Open the cylinder valve and watch for bubbles. Bubbles mean a leak - tighten the fitting and retest. Never use a flame to check for gas leaks.
Once connections are clean, close the lid and run all burners on high for 10-15 minutes to burn off manufacturing oils. Shut down, let the grill cool, then light each of the six burners individually to confirm ignition and a steady blue flame. A yellow flame on any burner means the tube is not seated over the orifice.
Light each burner individually on first fire. If one lights and the next does not, you have isolated the problem to that tube or ignition wire instead of guessing at the whole manifold.
Six Mistakes That Force a Rebuild (and How Each One Shows Up)
| Mistake | How it shows up |
|---|---|
| Over-tightening cart bolts before the frame is square | Doors rub, cart rocks on casters |
| Dropping the firebox onto the valve manifold | Bent orifice, gas smell at the front panel |
| Skipping the leak test | No visible symptom until you smell gas |
| Aftermarket regulator mismatched to the cylinder | Low flame or no gas flow |
| Losing the ignition ground clip | Push-button does nothing |
| Tightening the lid before checking hinge alignment | Lid binds or does not close flush |
Post-Build Adjustments: Lid Alignment, Caster Leveling, and Cover Fit
After the burn-off, check that the lid closes evenly on both sides; if not, loosen the hinge bolts a quarter turn, let the lid settle, and retighten. Lock the casters on a level surface before cooking, and confirm your cover fits over the side burner shelf - covers sized for 4-burner carts will not fit this footprint. These adjustments prevent rust, wobble, and premature cover wear.
Which Build Plan Suits You: First-Timer, Upgrader, or Event Deadline
First-time cart builders should plan the two-evening sequence above: cart Friday, firebox and burners Saturday with help. Upgraders from a 4-burner can compress the build into a single 90-minute session if they have assembled a Nexgrill cart before and have a magnetic tray to keep hardware sorted. Event-deadline buyers should start at least a week before the event, so a missing part or leaky regulator does not become a same-day crisis. In all three cases, do the leak test before the first cook, not on party day.
Where to Get Model-Specific Parts and Support
If a burner tube, ignition wire, or regulator is damaged in transit, contact Nexgrill support with your model and serial number from the rating label. Reach the team through the Nexgrill contact page, and browse the full cart-grill range on the Nexgrill product collection. For propane and fire-safety basics, the CPSC and NFPA guides below are worth a read before your first cook.
