Size the cabinet and the opening separately
Berta’s bridge wall cabinet range lists 30, 33 and 36-inch widths; 12, 15, 18, 21 and 24-inch heights; and a 12-inch depth. The right combination depends on the available wall space, mounting elevation and the appliance or opening below.
A bridge cabinet is a short wall cabinet used to continue an upper run across an opening. Its product size does not specify the ventilation space, filler allowance, door swing or anchoring needed for your installation.
Bridge cabinet size chart: all 15 listed combinations
The model code identifies the width and height in this particular range: W3012 is the listed 30-inch-wide, 12-inch-high option. All combinations below are present in the current size selector. White and gray are color choices, not different dimensional systems.
| Model | Listed W × H × D | Converted dimensions | Selection note |
|---|---|---|---|
| W3012 | 30 × 12 × 12 in | 762 × 304.8 × 304.8 mm | 12 in height; confirm the selected color and current configuration. |
| W3015 | 30 × 15 × 12 in | 762 × 381 × 304.8 mm | 15 in height; confirm the selected color and current configuration. |
| W3018 | 30 × 18 × 12 in | 762 × 457.2 × 304.8 mm | 18 in height; confirm the selected color and current configuration. |
| W3021 | 30 × 21 × 12 in | 762 × 533.4 × 304.8 mm | 21 in height; confirm the selected color and current configuration. |
| W3024 | 30 × 24 × 12 in | 762 × 609.6 × 304.8 mm | 24 in height; confirm the selected color and current configuration. |
| W3312 | 33 × 12 × 12 in | 838.2 × 304.8 × 304.8 mm | 12 in height; confirm the selected color and current configuration. |
| W3315 | 33 × 15 × 12 in | 838.2 × 381 × 304.8 mm | 15 in height; confirm the selected color and current configuration. |
| W3318 | 33 × 18 × 12 in | 838.2 × 457.2 × 304.8 mm | 18 in height; confirm the selected color and current configuration. |
| W3321 | 33 × 21 × 12 in | 838.2 × 533.4 × 304.8 mm | 21 in height; confirm the selected color and current configuration. |
| W3324 | 33 × 24 × 12 in | 838.2 × 609.6 × 304.8 mm | 24 in height; confirm the selected color and current configuration. |
| W3612 | 36 × 12 × 12 in | 914.4 × 304.8 × 304.8 mm | 12 in height; confirm the selected color and current configuration. |
| W3615 | 36 × 15 × 12 in | 914.4 × 381 × 304.8 mm | 15 in height; confirm the selected color and current configuration. |
| W3618 | 36 × 18 × 12 in | 914.4 × 457.2 × 304.8 mm | 18 in height; confirm the selected color and current configuration. |
| W3621 | 36 × 21 × 12 in | 914.4 × 533.4 × 304.8 mm | 21 in height; confirm the selected color and current configuration. |
| W3624 | 36 × 24 × 12 in | 914.4 × 609.6 × 304.8 mm | 24 in height; confirm the selected color and current configuration. |
The millimeter figures are exact arithmetic conversions of the listed inch sizes, not caliper measurements of a delivered cabinet. Obtain the approved dimensional drawing before finalizing fillers, end panels or close-fitting appliances.
What each cabinet dimension does—and does not—tell you
| Dimension | Use it to plan | Keep separate |
|---|---|---|
| Width | The cabinet’s place along the upper run. | Fillers, finished end panels, wall irregularities, appliance side clearances and neighboring doors. |
| Height | The distance between the cabinet’s top and bottom datums. | Ceiling trim, soffits, appliance ventilation and mounting clearances. |
| Depth | The box’s projection from its mounting plane. | Door and handle projection, service voids, trim and the depth of the appliance below. |
A 12-inch-deep bridge cabinet is not a deep refrigerator enclosure. It can sit behind the front plane of a refrigerator or a deeper tall cabinet. Decide whether that stepped appearance is intended; do not bring it forward on improvised blocking without an approved support detail.
For the style decision, see why Shaker cabinets work across different kitchen layouts. Door style helps coordinate the run, but it does not establish installation dimensions.
Calculate the available height from fixed datums
Use one finished-floor reference for the kitchen. Record the planned upper cabinet-top elevation and the lowest permitted cabinet-bottom elevation. The latter must already respect the design and the exact appliance instructions.
Illustrative layout: if the upper datum is 90 inches and the permitted cabinet bottom is 72 inches, the available height is 18 inches. An 18-inch cabinet reaches the lower datum; a 21-inch cabinet would finish at 69 inches and fail that particular limit.
| Selected height | Bottom with top at 90 in | Compared with example 72 in lower limit |
|---|---|---|
| 12 in | 78 in | Above the example limit |
| 15 in | 75 in | Above the example limit |
| 18 in | 72 in | At the example limit |
| 21 in | 69 in | Below the example limit |
| 24 in | 66 in | Below the example limit |
Above a cooktop, range, hood or microwave: follow the exact appliance and cabinet installation requirements. This chart does not establish a safe clearance to combustible cabinetry, a ventilation duct route or permission to mount an appliance to a bridge cabinet.
Check width and door movement before ordering
Measure the intended mounting space at the top, middle and bottom. Record the tightest usable width after accounting for the finished wall surfaces. Then reserve the approved end panels and fillers. A gap left after subtracting cabinet width is not automatically the correct filler size. Where the run turns a corner, confirm the blind-corner footprint and filler allowance before assigning the remaining width.
Check the complete closed front and its swing. Door thickness, handles, hinge pivot position, adjacent tall doors and nearby walls can use space outside the nominal box. A refrigerator may also need additional side clearance for its own door to open far enough to remove internal drawers; consult its model-specific instructions.
Treat a window opening the same way: measure trim projection, handles and the window’s operation, not just the drywall opening. Avoid placing storage where the doors cannot be reached or used comfortably.
Use the Kitchen Layout Planner to organize a concept, then validate the result with field measurements and product drawings. A generated layout is not installation approval.
Bridge-cabinet measurement worksheet
| Record before purchase | Your value / evidence |
|---|---|
| Cabinet location and model | ____________________________ |
| Usable finished wall width at three heights | Top ____ / middle ____ / bottom ____ |
| Upper cabinet-top datum | ____ above the same finished-floor reference |
| Minimum permitted cabinet-bottom datum | ____; appliance/manual or design reference ____ |
| Depth and front projection | Box ____ / door + handle ____ / adjacent front ____ |
| Fillers, end panels and ceiling trim | Sizes ____; included or separately ordered ____ |
| Appliance or window model | ____; required ventilation, access and clearance checked ____ |
| Wall construction and anchoring plan | Approved mounting detail ____ |
| Delivery and access route | Packaged dimensions, unloading and doorway route confirmed ____ |
Keep the selected model and color on the order as well as the project drawing. Buying two short cabinets with the same width does not mean they share a height, internal opening or door arrangement.
Related cabinets for a coordinated run
These links let you select individual cabinet products. Confirm current dimensions, contents and availability for the exact option.
Bridge Wall Cabinets
Compare the actual 30, 33 and 36-inch width options and select the required height and color.
Compare bridge cabinet sizes
Pre-Assembled Pantry Cabinets
Coordinate tall-unit height and front alignment where a pantry cabinet adjoins the upper run. It is a separate cabinet family.
View assembled pantry cabinetsInstallation planning without inventing an anchor schedule
Have a qualified installer confirm the mounting substrate, fasteners and support detail for the cabinet and expected contents. Cabinet-to-cabinet joining does not automatically replace wall anchoring, and the box should not depend on the refrigerator or another appliance for support.
For related fabrication decisions, use the cabinet plywood selection guide and the plywood screw chart for cabinet joints. The screw article addresses cabinet joinery, not a wall-anchor schedule. For base-run elevation and toe-kick coordination, review cabinet leveling and height planning.
Before installation day, confirm what is assembled, the packaged size, delivery service level, unloading responsibilities and the route into the room. Do not assume the short cabinet’s finish, filler pieces or mounting hardware match another item merely because both use a Shaker door. For the adjoining tall unit, review pantry cabinet assembly, delivery and access checks separately.
Frequently asked questions
What sizes do Berta bridge cabinets come in?
The reviewed range lists 30, 33 and 36-inch widths, five heights from 12 through 24 inches in 3-inch increments, and a 12-inch depth. Verify the selected model drawing and current availability.
Is a bridge cabinet size the refrigerator opening size?
No. The cabinet dimensions and refrigerator clearances serve different purposes. Account separately for ventilation, door operation, fillers, panels and the finished opening.
Can I use a 36-inch bridge cabinet over any 36-inch appliance?
Not from width alone. Check the appliance’s actual dimensions, installation clearances, mounting requirements and door movement as well as the cabinet height and depth.
Should I order the tallest cabinet that fits under the ceiling?
Only after establishing the lower clearance limit, upper datum, trim and support plan. A taller cabinet can intrude into the space needed by an appliance or window below.
Dimensions and scope
Catalog basis: Berta Bridge Wall Cabinets and Pantry Cabinets. The chart summarizes the reviewed size selector and description. Millimeter conversions and elevation examples are calculations, not measured tolerances or certified installation details.
