You are standing in the alfresco with a tape measure, and the question has quietly changed. It is no longer which burners you want. It is whether the BBQ gets built into a bench for good, or stays on its wheels where you can shove it aside when the kids need the space.
A built in bbq and a freestanding one can cook the same food to the same standard. What separates them is everything around the cooking: what you spend, who has to install it, how easily you clean behind it, and what happens the day you move house. This guide sticks to that one decision, using live prices from Crossray BBQs.
What a built in bbq actually commits you to
An in-built unit is designed to drop into a cut-out in a bench or cabinet, with its controls and drain tray facing out and everything else hidden. The Crossray In-Built Infrared 4 Burner BBQ ($2,124) is a fair example. It runs four ceramic infrared burners at 13 MJ/hr each, for 52 MJ/hr in total. The body is 304 stainless steel with die cast end panels, and there is electronic ignition and a front drain tray you can reach without crouching.

Notice that price, then notice what is missing from it. The appliance is rarely the expensive part of going built-in. The bench is. You are committing to cabinetry, a benchtop, a cut-out sized from the manufacturer's own spec sheet, and trades to build and connect the whole thing.
What that buys is real, though. Continuous bench either side of the cook, so raw food goes on one side and cooked food comes off the other. A tidy finished look with no wheels or gas bottle on show. And a cooking station that never drifts out of position. It also fixes that position permanently, so wind direction and afternoon sun are decisions you make once, on paper.
Freestanding: the format that keeps its options open
A freestanding BBQ is a complete appliance with its own trolley, shelves and storage. In many cases the cooking hardware is identical. The Crossray Infrared 4 Burner BBQ on Trolley ($2,874) is the trolley version of the in-built unit above, which makes the choice genuinely about format rather than performance.

You pay a bit more for the appliance and far less overall, because there is no bench to build. It arrives, you assemble it, you cook on it that weekend. If the entertaining area changes, or you rent, or you move, it comes with you.
Freestanding does not mean basic, either. The Napoleon Rogue XT 625 SIB 5 Burner BBQ with Infrared Side Burner ($2,999) carries 69,000 BTU across five burners. Add an infrared side burner for searing, cast iron cooking grids, folding side shelves and locking casters. The casters are the whole idea: it rolls when you want it to, then it stays put. There is more of the range in Napoleon BBQs.
Built in or freestanding: a side-by-side comparison
| Factor | Built in BBQ | Freestanding BBQ |
|---|---|---|
| Total cost | Appliance plus cabinetry, benchtop and trades | Appliance only |
| Installation | Cabinet maker plus a licensed gas fitter | Assemble it and connect a bottle |
| Bench space | Continuous, either side of the cook | Folding side shelves only |
| Flexibility | Fixed in place for good | Rolls aside, moves house, goes into storage |
| Cleaning access | Front only, so plan drainage early | Pull it out and sweep behind it |
| Renting or strata | Rarely workable | The safe choice |
| Resale | Stays with the house as a fixture | Comes with you |
One of those rows deserves saying out loud: cleaning. A freestanding BBQ can be dragged forward so you can sweep the leaves and fat splatter out from behind it. A built-in cannot be, so grease, drainage and access have to be designed in from day one rather than solved later.
Gas, clearances and the liner nobody budgets for
This is where built-in stops being a styling choice. Any fixed gas connection, whether natural gas or LPG plumbed to the cabinet, must be carried out by a licensed gas fitter. That is not optional and it is not a weekend job.
Clearances and ventilation come from the appliance's own installation manual, not from a blog or a builder's habit. Every in-built unit specifies the space it needs around the firebox and how the cabinet has to breathe, and those figures differ between models. Hand the manual to your gas fitter and your cabinet maker before a single stud goes up.
Then there is the liner. If the cabinet is built from combustible materials, a built-in BBQ needs the manufacturer's matching zero clearance liner. For the Napoleon BIG32, that is the Napoleon Zero Clearance Liner for BIG32 ($1,195), which lets combustible building materials sit near or against the appliance without heat damage. Budget it as part of the BBQ, not as an accessory.

Renting, strata and the day you move house
Three Australian realities settle this argument more often than taste does.
If you rent, freestanding is the only sensible answer. A built-in is a fixture, and fixtures stay with the property. Apartments and townhouses add another layer, because strata and body corporate rules commonly restrict what can be fixed to a balcony or a common wall, and some buildings limit gas bottles outright. Ask before you order, not after.
Council approval is worth a phone call as well. Whether a cooking bench or a roofed cooking structure needs approval varies by state and by council, and the answer often turns on its size and its distance from a boundary. Your local council can confirm what applies at your address.
Then there is resale. A well-built cooking bay reads as a feature to buyers, while a half-finished one reads as a job to fix. If the built-in path appeals, plan the whole bay properly first, and our guide to outdoor kitchen ideas for Australia covers the zones, benches, fridge and trades that surround the BBQ itself.
Built in bbq vs freestanding: frequently asked questions
Can you build a freestanding BBQ into an outdoor kitchen bench?
No, not unless the manufacturer states the model is approved for it. Freestanding units are certified to run in open air with clearances on every side, and boxing one into cabinetry creates a heat and gas hazard. Buy a model made as an in-built instead, or leave the freestanding one on its trolley.
Does a built in BBQ need a zero clearance liner?
It does if the surrounding cabinet contains combustible materials. The liner is model-specific, so the Napoleon BIG32 takes its own, and it allows timber framing or cladding to sit close without heat damage. A cabinet built entirely from non-combustible materials may not need one, so confirm it against the installation manual.
Can a built in BBQ run on natural gas?
Many can, but it depends on the model and the changeover is a licensed gas fitter's job. The Crossray In-Built Infrared 4 Burner BBQ, for instance, ships as LPG and is fully convertible to natural gas. Decide which fuel you are running before the cabinet is built, because the line has to reach the cut-out.
What happens to a built in BBQ when you sell the house?
It stays with the property. A built-in appliance is a fixture and forms part of the sale, so treat the spend as an improvement to the house rather than something you take with you. If a move is likely within a few years, freestanding keeps that money mobile.
Shop the range
If the bench is already drawn, start with the in-built units and their liners in Crossray BBQs and Napoleon BBQs, then hand the manuals to your gas fitter. If you would rather be cooking this weekend, a trolley model does that with no trade involved, and the full BBQs range covers both paths. We deliver Australia-wide with free delivery over $100, most orders are dispatched in 3-10 business days, and installation is available on request.