How big is a speed oven?#
A speed oven is a compact combination microwave-convection cavity for a tall cabinet, in nominal 24, 27, or 30-inch widths and only 18 to 20 inches tall. The table below lists all three built-in widths.
Speed oven dimensions by configuration#
| Configuration | Nominal width (in) | Height (in) | Depth (in) | Best for |
|---|---|---|---|---|
| 24-inch built-in speed oven | 24 | 18–19 | 22–24 | a fast combi microwave-convection cavity |
| 27-inch built-in speed oven | 27 | 18–19 | 22–24 | a wider combi cavity |
| 30-inch built-in speed oven | 30 | 18–20 | 23–25 | a wide built-in combi oven |
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Installation clearances for a speed oven#
- Cutout width: 22.5–28.5 in in of cabinet cutout a built-in speed oven needs, a little under the nominal width.
- Cutout height: 18–20 in in of cabinet height a speed oven cutout needs for the cavity and trim.
- Ventilation: A speed oven vents through its front or a trim-kit gap, so follow the cutout clearances exactly.
- Outlet access: A speed oven wires to a dedicated outlet, so leave junction-box access at the back of the cutout.
Will your speed oven fit? Clearances and door swing#
A speed oven drops into a cabinet cutout like a small wall oven, so the cutout dimensions are the whole fit question. Frame the opening 22.5 to 28.5 inches wide, a little under the nominal face width, and 18 to 20 inches tall for the cavity plus its trim. Because it combines microwave and convection heat, ventilation matters: the unit exhausts through the front or a trim-kit gap, so follow the cutout clearances exactly rather than boxing it in tight. Depth runs 22 to 25 inches, so confirm the cabinet is deep enough for the cavity and the wiring behind it. The appliance draws on a dedicated outlet, so leave junction-box access at the back of the cutout before the case slides home. The door drops or swings forward, so keep the counter or floor below clear.
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Speed oven sizes by type: 24-inch built-in speed oven, 27-inch built-in speed oven, 30-inch built-in speed oven#
The three widths scale the cavity to the cabinet. The 24-inch speed oven, 18 to 19 inches tall and 22 to 24 deep, is the European-style combi cavity that reheats fast and browns like a convection oven, ideal for a compact kitchen. The 27-inch version widens the cavity for a bit more capacity in a mid-width cabinet column. The 30-inch model, 18 to 20 inches tall and 23 to 25 deep, is the widest built-in combi, matching a full-size wall-oven column. Pick the width to match your cabinet run, since the cavity depth and height barely change across the three.
Speed oven dimensions: common questions#
What is a speed oven?#
A speed oven is a built-in appliance that combines microwave and convection cooking in one cavity, so it reheats quickly yet browns and crisps like a real oven. It installs in a cabinet cutout like a compact wall oven.
What cutout does a 27-inch speed oven need?#
A 27-inch speed oven needs a cabinet cutout a little under its face width, within the 22.5 to 28.5 inch range the sizes span, and 18 to 20 inches tall. Confirm the exact cutout on the model spec.
How wide is a built-in speed oven?#
Built-in speed ovens come in nominal 24, 27, and 30-inch widths to match standard cabinet columns. The actual cutout is a little narrower than the nominal size.
How tall is a speed oven cutout?#
The cutout is 18 to 20 inches tall for the cavity and its trim — much shorter than a full wall oven. That compact height lets it stack above or below another appliance in a column.
How deep is a speed oven?#
A speed oven is 22 to 25 inches deep. Make sure the cabinet clears that depth plus the wiring behind the case.
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