Updated October 2026.
Short answer: the 400 Deluxe is the four burner island in Mont Alpi's Deluxe series. The three 805 islands, the 805, 805 Deluxe and 805 Black, share a bigger six burner grill. The 957 is the compact island.
- 400 Deluxe: four burners, 78,000 BTU and a 28" x 18" cooking surface on an 82" wide island.
- 805, 805 Deluxe and 805 Black: six burners, 115,000 BTU and a 38" x 18" cooking surface on a 94" wide island. The Deluxe and Black come with a rotisserie kit, a weather cover and a granite chopping board. On the 805 (Mont Alpi's Original series), the weather cover and the rotisserie kit are options.
- 957: four burners, 63,000 BTU and a 27" x 18" cooking surface in a 70" wide unit. The MA-957FC adds a 38 liter outdoor refrigerator.
Mont Alpi lists 304 stainless steel components and a propane hose and regulator on all of them, and says each one is delivered fully assembled.
Side by side
| 400 Deluxe | 805 | 805 Deluxe | 805 Black | 957 | |
|---|---|---|---|---|---|
| Base model | MAi400-D | MAi805 | MAi805-D | MAi805-BSS | MA-957, or MA-957FC with fridge |
| Main burners | Four 304 stainless steel burners | Six standard burners (see the note below) | Six 304 stainless steel burners | Six 304 stainless steel burners | Four 304 stainless steel burners |
| Infrared burners | Ceramic infrared side and rear burners | Ceramic infrared side and rear burners | Ceramic infrared side and rear burners | Ceramic infrared side and rear burners | Ceramic infrared rear burner. No side burner listed |
| Heat output | 78,000 BTU | 115,000 BTU | 115,000 BTU | 115,000 BTU | 63,000 BTU |
| Cooking surface (not counting the warming rack) | 28" x 18" | 38" x 18" | 38" x 18" | 38" x 18" | 27" x 18" |
| Overall size of the base island (W x D x H) | 82" x 23" x 35", 46" to the top of the closed hood | 94" x 23" x 35", 46" to the top of the closed hood | 94" x 23" x 35", 46" to the top of the closed hood | 94" x 23" x 35", 46" to the top of the closed hood | 70" x 24" x 35" |
| Rotisserie kit | Included, with electric motor | Option | Included, with electric motor | Included, with electric motor | Included |
| Weather cover | Included | Option | Included | Included | Included |
| Chopping board | Granite, included | Not listed | Granite, included | Granite, included | Not listed |
| Fridge and sink | None in the base island. Layouts we carry add a fridge cabinet, a beverage center (fridge, sink and faucet) or a kegerator | None in the base island. Layouts we carry add a beverage center or a kegerator | None in the base island. Layouts we carry add a fridge cabinet, a beverage center or a kegerator | None in the base island. Layouts we carry add a fridge cabinet or a beverage center | MA-957: none. MA-957FC: built-in 38 liter outdoor refrigerator. No sink listed |
| Gas | Propane ready, with hose and regulator. Converts to natural gas with the Mont Alpi kit | Propane ready, with hose and regulator. Converts to natural gas with the Mont Alpi kit | Propane ready, with hose and regulator. Converts to natural gas with the Mont Alpi kit | Propane ready, with hose and regulator. Converts to natural gas with the Mont Alpi kit | Listed as natural gas and propane ready, with a propane hose and regulator |
| Counters and finish | 304 stainless steel, white granite surfaces with waterfall sides | 304 stainless steel, white composite granite surfaces | 304 stainless steel, white granite surfaces with waterfall sides | Black stainless steel finish, white composite granite surfaces | Black stainless steel doors and hood, white granite surfaces |
| Delivery | Each module delivered fully assembled | Each module delivered fully assembled | Each module delivered fully assembled | Each module delivered fully assembled | Arrives fully assembled |
From Mont Alpi's product and series pages at montalpionline.com, read October 2026. Mont Alpi's MAi805 page calls it a six burner island in its title and description but lists four burners in its spec list, and Mont Alpi's Original series page calls it a 6-burner grill. "Layouts we carry" comes from our own catalog. The manual that ships with your island governs the install, so confirm every figure against it before you build.
How to choose
- Grill size. The 805 grills are the big ones: Mont Alpi lists 115,000 BTU and a 38" x 18" cooking surface, against 78,000 BTU and 28" x 18" on the 400 Deluxe, and 63,000 BTU and 27" x 18" on the 957. All three 805 islands list the same heat output and cooking surface, so choose between them on what comes included and on the look.
- Room on your patio. Mont Alpi lists the base 400 Deluxe at 82" wide and the base 805 islands at 94" wide, both 23" deep. Each module you add makes the island longer: Mont Alpi lists the 805 with a beverage center (MAi805-BEV) at 132" wide. To turn a corner, the 90 degree corner cart is 25" x 25" x 35" and the 45 degree corner cart is 20" x 21" x 35", and Mont Alpi says each one "Fits any Mont Alpi Island". The 957 is a single 70" x 24" unit.
- What comes included. The 400 Deluxe, 805 Deluxe and 805 Black come with a rotisserie kit with electric motor, a full-size weather cover and a granite chopping board. The 957 comes with a heavy-duty rotisserie kit and a full weather cover. On the 805, Mont Alpi lists the weather cover and the rotisserie kit as options. Mont Alpi makes the MAROTIS rotisserie kit for the 805 island grill.
- The look. The 400 Deluxe and 805 Deluxe have white granite surfaces with waterfall sides, meaning the granite runs down the sides. The 805 lists white composite granite surfaces. The 805 Black pairs a black stainless steel finish with white composite granite surfaces. The 957 has black stainless steel doors and hood with white granite surfaces.
- Cold drinks and a sink. The base 400 Deluxe and 805 islands have no fridge or sink. For those, pick a layout with a fridge cabinet, a kegerator or Mont Alpi's beverage center module, which Mont Alpi says "includes an outdoor-rated refrigerator, sink, and faucet". The table shows which of these layouts we carry for each series. Mont Alpi says its kegerator pours from up to three barrels. On the 957, choose the MA-957FC for its 38 liter fridge.
- Your gas. The 400 Deluxe and 805 islands come propane ready, with a propane hose and regulator. For natural gas, add the Mont Alpi natural gas kit (MANGK), which Mont Alpi says includes a conversion tool, a natural gas regulator and a 10 foot natural gas hose. Mont Alpi lists the 957 as "Natural gas and propane ready for flexibility", with a propane hose and regulator included, but its 957 pages do not name a conversion kit. Call us before you plan a natural gas hookup for a 957.
Delivery and installation
- Assembly. Mont Alpi says "EACH MODULE DELIVERED FULLY ASSEMBLED" on its 400 Deluxe and 805 island pages, and says the 957 "Arrives fully assembled for hassle-free setup". The 400 Deluxe and 805 islands are made of modules: a side burner cabinet, the grill and an end cabinet, plus any beverage center, fridge cabinet or kegerator in your layout. Mont Alpi lists its corner carts as "Easy to assemble and attach".
- Moving it into place. Mont Alpi lists gliding rubber castor wheels and leveling feet on the 400 Deluxe and 805 islands, and gliding rubber castor wheels on the 957.
- Gas hookup. We did not find gas hookup instructions or clearances on Mont Alpi's site. Have a licensed gas professional connect the island and do any natural gas conversion, and follow the manual that ships with your island and your local code.
- Outdoors and weather. Mont Alpi sells these as outdoor kitchens. Its care guide says to "always use a barbecue cover" and recommends a dry storage space when you have one. Its warranty page says Mont Alpi will not be responsible for damage due to bad weather or hail, and that "UV exposure is not covered." We did not find rules for a covered patio or distances to walls on Mont Alpi's site, so settle the spot with your installer before you order.
- Covers. On its Deluxe and Black series pages, Mont Alpi says "Each cover is custom-made to fit your model’s specific configuration". The 400 Deluxe, 805 Deluxe, 805 Black and 957 include one. On the 805, the cover is an option (see the cover question below).
- Local rules. Check with your local building department about permits and inspection before you start.
Questions buyers ask
What is the difference between the Mont Alpi 400 and 805?
Grill size. The 400 Deluxe has four burners, 78,000 BTU and a 28" x 18" cooking surface on an 82" wide island. The 805 islands have six burners, 115,000 BTU and a 38" x 18" cooking surface on a 94" wide island. Both have ceramic infrared side and rear burners. Mont Alpi's Original and Black series pages also list 400 models, such as the MAi400 and MAi400-BSS90. The 400 we carry is the 400 Deluxe.
What does the 805 Deluxe add over the 805?
White granite waterfall sides, plus a rotisserie kit with electric motor, a full-size weather cover and a granite chopping board, all included. On the 805, the weather cover and the rotisserie kit are options. Both list 115,000 BTU and a 38" x 18" cooking surface. The 805 Black includes the same three items with a black stainless steel finish, and Mont Alpi does not list waterfall sides on it.
What is the Mont Alpi 957?
Mont Alpi's compact island, 70" x 24" x 35". It has four burners, 63,000 BTU, a 27" x 18" cooking surface and a ceramic infrared rear burner, and it comes with a rotisserie kit and a full weather cover. Mont Alpi lists no side burner on it. The MA-957FC adds a built-in outdoor refrigerator with a capacity of 38 liters.
Does Mont Alpi make a built-in grill for my own island?
Yes. The 32" MABi400 has four burners, 63,000 BTU and a 28" x 18" cooking surface. The 44" MABi805 has six burners, 87,000 BTU and a 38" x 18" cooking surface. Both have a ceramic infrared rear burner, a rotisserie kit with electric motor and a weather cover, and both come propane ready and convert to natural gas with the Mont Alpi kit. Mont Alpi says their brackets give extra tolerance for most 4 burner and most 6 burner cutouts, but it does not list a cutout size on these pages, so send us your opening size before you order.
Do I need a cover, and which one fits?
Mont Alpi's warranty covers the hood, grids, burners and firebox only "when protected with a suitable all-weather cover." The 400 Deluxe, 805 Deluxe, 805 Black and 957 include one. For the 805, order the cover separately: Mont Alpi says its COVMAI805 cover for the 805 grill fits up to 45", and that "Each module cover will zip to another in any combination." Call us with your layout and we will match the covers to it.
What warranty comes with a Mont Alpi grill?
Mont Alpi sets the warranty. Its warranty page lists 15 years on the stainless steel roasting hood, "covered against rust through", and 15 years on the stainless steel cooking grids, "Covered against rust through, not rust marks." It lists 5 years on the stainless steel tubular burners and 2 years on the stainless steel firebox. The hood, grids, burners and firebox are each guaranteed "only when protected with a suitable all-weather cover." Mont Alpi also says "All electronics and ignition are covered for 1 year against failure." and "The Mont Alpi is not guaranteed for Commercial use." Read the full terms on Mont Alpi's warranty page.
Before you order
Our shipping policy covers how orders ship. Every Mont Alpi layout we carry, with the covers and add-on modules, is on our Mont Alpi page. Planning an outdoor kitchen? Call (708) 765-6925 with your patio size, the layout you want and your gas type, and we will go over the Mont Alpi modules and covers for it. Your installer and the manual that ships with your island have the final say on fit.
