Kitchen Cabinet Bill of Materials & Cabinet Schedule Explained
What a kitchen cabinet bill of materials and cabinet schedule include, how they drive quoting and ordering, and why they must match the drawings exactly.
· 9 min read
A kitchen drawing shows what the room will look like. A kitchen cabinet bill of materials (BOM) and cabinet schedule say exactly what has to be bought, built and delivered to make it real. They are the documents a supplier quotes from, a purchaser orders from and an installer checks against on delivery day. This guide explains what each document contains, how they are used, and why keeping them in sync with the drawings matters so much.
Cabinet schedule vs. bill of materials
The two terms overlap, and different shops use them differently, but a useful distinction is:
- Cabinet schedule: a list of every cabinet in the design, one row per cabinet, with its ID, location, size and configuration. It answers "what goes where?"
- Bill of materials: an aggregated list of everything to purchase, including cabinets, fillers, panels, toe-kicks, moldings, countertops, hardware and accessories, with quantities. It answers "what do we need to buy, and how much?"
In practice, the schedule is often the first section of a full BOM, and both are derived from the same plan. Some workflows also produce a separate price estimate that applies catalog pricing to the BOM.
What a cabinet schedule contains
A well-structured schedule gives each cabinet a unique ID that also appears on the floor plan and elevations. Typical columns:
| Column | What it records | Example |
|---|---|---|
| Cabinet ID | Unique label matching the drawings | B3 |
| Wall / run | Where it sits | Wall A, run 1 |
| SKU / catalog code | Manufacturer product code | SB36 |
| Type | Base, wall, tall, corner, sink base, etc. | Sink base |
| Width | Box width | 36" (914 mm) |
| Height | Box height | 34.5" (876 mm) |
| Depth | Box depth | 24" (610 mm) |
| Door / drawer configuration | Fronts layout | 2 doors, 1 false front |
| Hinge side | Left, right or pair | Pair |
| Finish / door style | Door profile and color | Shaker, white paint |
| Accessories / modifications | Inserts, trays, end finishing | Tip-out tray, finished left end |
| Notes | Anything else for the installer | Center on window |
Why the details matter
- Hinge side must be specified for single-door cabinets. A door hinged on the wrong side next to a wall or appliance may only open partway or block a walkway.
- Door and drawer configuration affects price and function. A 24" (610 mm) base can be a single door, a door over drawer, or a three-drawer stack, all with different SKUs.
- Finished ends matter for exposed sides of runs. If an end is visible, it needs a finished side or an applied end panel.
- Modifications, such as reduced depth or a cut-down height, are often priced separately and can extend lead times.
What a full bill of materials adds
Beyond the cabinets themselves, a complete kitchen cabinet BOM lists everything else needed to finish the install. Missing items here are the usual cause of a second delivery or an installer waiting for parts.
Fillers and panels
- Fillers: each filler with its width, height and finish, plus any scribe allowance. See kitchen cabinet fillers for how they are sized.
- End panels: applied panels for exposed run ends, dishwasher ends and refrigerator surrounds.
- Back panels: finished backs for islands and peninsulas.
Toe-kick and moldings
- Toe-kick or plinth: usually in linear feet (or meters), in the matching finish, with spare length for cutting.
- Crown, light rail and scribe molding: linear lengths, often rounded up to stock lengths of 8' (2438 mm) or similar.
Countertops
- Linear footage along the front edge of each run, and square footage (or square meters) of surface area.
- Cutouts for sinks, cooktops and outlets.
- Edge profiles and finished ends.
- Backsplash area if it is supplied by the same fabricator.
Countertop quantities are usually estimates in the BOM; most fabricators template on site after cabinets are installed and quote final quantities from those measurements.
Hardware and accessories
- Handles and knobs: a count of pulls and knobs, by size. This is easy to miscount by hand, because a three-drawer base needs three pulls and a pair of doors needs two.
- Hinges, drawer slides and soft-close upgrades if not included with the cabinets.
- Interior accessories: pull-out trash, tray dividers, spice pull-outs, corner mechanisms, lighting.
- Installation hardware: legs or levelers for frameless cabinets, mounting rails, screws and shims.
Appliances
Appliances are often listed for coordination even if bought separately. Recording the model, width and any required filler or panel ensures the cabinet openings match. Panel-ready dishwashers and refrigerators also need their own door panels in the cabinet finish, which belong in the BOM.
Example BOM excerpt
Here is a simplified excerpt for a single run with a sink and dishwasher:
| ID | Item | SKU | W × H × D (in) | W × H × D (mm) | Qty | Notes |
|---|---|---|---|---|---|---|
| F1 | Wall filler | F3 | 1.5 × 34.5 × 0.75 | 38 × 876 × 19 | 1 | Scribe to wall, left |
| B1 | Drawer base | DB18 | 18 × 34.5 × 24 | 457 × 876 × 610 | 1 | 3 drawers |
| B2 | Sink base | SB36 | 36 × 34.5 × 24 | 914 × 876 × 610 | 1 | Pair doors, tip-out tray |
| DW | Dishwasher | Appliance | 24 × 34.5 × 24 | 610 × 876 × 610 | 1 | Supplied by client |
| B3 | Base, door over drawer | B36 | 36 × 34.5 × 24 | 914 × 876 × 610 | 1 | Pair doors |
| F2 | Wall filler | F6 | 4.5 × 34.5 × 0.75 | 114 × 876 × 19 | 1 | Scribe to wall, right |
| TK | Toe-kick | TK8 | 96" length | 2438 mm length | 2 | Cut to suit |
| CT | Countertop | – | 120 × 25.5 | 3048 × 648 | 1 | One sink cutout |
| HW1 | Pull, 5" | – | – | – | 8 | B1: 3, B2: 2, B3: 3 |
The hardware row shows why counts should be derived rather than guessed: B1 needs three pulls for three drawers, B2 needs two for its doors (its false front takes none), and B3 needs three for one drawer and two doors. Hardware counts are where hand-built BOMs most often go wrong, because the correct number depends on each cabinet's exact front configuration.
How the BOM is used
Quoting
Suppliers and dealers price the BOM line by line using their catalog price lists, plus charges for finish upgrades, modifications and delivery. A precise BOM makes quotes comparable between suppliers. A vague one, such as "about 20 linear feet of cabinets", produces quotes that cannot be compared and change later.
Ordering
Cabinet orders are placed by SKU and option codes. Every hinge side, finish code and modification must be specified, because made-to-order cabinets are often not returnable. Ordering from a clean schedule reduces the chance of a wrong-handed door or a missing finished end.
Receiving and installing
On delivery, the installer checks boxes off against the schedule. Cabinet IDs on the drawings and labels on the boxes let them stage each cabinet at its location. Items missing from the BOM, typically fillers, toe-kick or panels, are discovered at this stage, which is the most expensive time to find them.
Why drawing–BOM reconciliation matters
The most common BOM problem is not a typo in a single line. It is a mismatch between the drawings and the list, which usually happens when the design changes and only one of the two is updated:
- A cabinet is resized from 33" to 36" on the plan, but the BOM still lists the 33" SKU.
- A filler is added on the elevation but never reaches the order.
- A door hinge is flipped on the drawing to clear a wall, but the order still says left.
- A drawer base replaces a door base, and the pull count does not change.
Each of these produces a wrong or missing part on site. The fix is to generate the schedule, BOM and estimate from the same model as the drawings, so a change in one place is a change everywhere. If you do maintain them by hand, do a final line-by-line check against the plan and elevations before ordering.
This is the approach behind OpenKitchen3D, which is in development. It is designed so that the plan, elevations, 3D view, cabinet schedule, BOM and price estimate all come from one model, with CSV and PDF exports. Cabinet SKUs, allowed sizes and pricing expressions come from an open, versioned catalog format, so the estimate reflects the actual catalog rather than a hand-typed price list. Manufacturing outputs such as cut lists are planned for a later, separate beta. See the roadmap and our guide to kitchen design software for cabinetmakers for more context.
Tips for a reliable kitchen cabinet BOM
- Give every cabinet a unique ID and show it on every drawing.
- List hinge side for every single-door cabinet, even where it seems obvious.
- Include fillers, panels, toe-kick and moldings as their own lines, not as notes.
- Derive hardware counts from front configurations, not from a rough estimate.
- Record appliance models and widths so cabinet openings and panels match.
- Version the document and date every revision, so everyone works from the same list.
- Reconcile before ordering: walk the plan wall by wall and tick off each line.
For the broader process around these documents, see how to plan a kitchen remodel.
Frequently asked questions
What is a kitchen cabinet bill of materials?
A kitchen cabinet bill of materials is a complete list of everything needed to build and install the cabinets: each cabinet SKU, plus fillers, panels, toe-kick, moldings, countertops, hardware and accessories, with quantities. It is used for quoting, ordering and checking deliveries. It is usually derived from the cabinet schedule and drawings.
What is the difference between a cabinet schedule and a BOM?
A cabinet schedule lists each cabinet individually with its ID, location, size, configuration, hinge side and finish. A BOM aggregates everything to purchase, including non-cabinet items such as fillers, toe-kick and hardware. Many shops combine them into one document with the schedule as its first section.
What should be included in a cabinet schedule?
At minimum, include a unique cabinet ID, the SKU, cabinet type, width, height and depth, door and drawer configuration, hinge side, finish and any accessories or modifications. A location column (wall or run) and installer notes are also useful. The IDs should match labels on the plan and elevations.
Why do BOMs and drawings get out of sync?
They drift apart when the design changes and only one document is updated, for example resizing a cabinet on the plan without changing the order. Fillers, hinge sides and hardware counts are the items most often missed. Generating both from the same model, or doing a line-by-line reconciliation before ordering, prevents most errors.
How are countertops measured in a BOM?
Countertops are usually listed by linear footage along the front edge and by surface area in square feet or square meters, with cutouts and edge profiles noted. These quantities are typically estimates for budgeting. Most fabricators template the countertop on site after the cabinets are installed and confirm final quantities from that.
Can I export a cabinet BOM to a spreadsheet?
Many design tools export schedules and BOMs as CSV files that open in any spreadsheet application, which makes them easy to share with suppliers. OpenKitchen3D, which is still in development, is designed to export the schedule, BOM and price estimate as CSV and PDF. Release timing is not yet set, so check the project's roadmap for current status.