Two woodwork bids come back for the same office lobby, and one is far lighter than the other. Read the scope letters side by side and the reason usually appears: one shop priced the reception desk, the storage wall and the paneled feature wall behind it, while the other priced only the cabinets and listed the paneling as "by others." Nobody did anything wrong. They drew the line between casework vs millwork in different places, and the drawings never told them where it belonged. The short version: casework is the boxes (cabinets and storage built as cases), and millwork, in the narrow sense bidders use, is the woodwork shaped to the room around them, from paneling to trim to mantels.
Casework means the boxes, and the boxes come with rules
Casework is storage built as a case: a box with a bottom, sides, a top or rails, and usually a back, fitted with doors, drawers or shelves. Base cabinets, wall cabinets, tall storage units, lab benches, nurse station cabinets, classroom storage and the cabinet bodies of a reception desk all count. A box can be set in place, leveled, fastened to the wall and then trimmed out.
Architectural casework is the term you will see on commercial drawings for cabinets that are designed for a specific project rather than ordered from a catalog. It is still built as modular boxes, but the sizes, materials, edge treatments, hardware and finishes follow the project documents. Manufactured casework differs here: it comes in standard sizes and configurations from a product line and is often specified in a different part of the project manual.
Casework tends to be judged on construction. Reviewers look at the box material and thickness, how the joints are made, how the back is captured, the drawer box construction, the slides and hinges, and how the cabinet carries a stone or solid surface top. Because the parts repeat, casework is also where a shop's production methods show most clearly.
Millwork is everything shaped to the architecture
The broad answer to "what is millwork" is any woodwork produced in a shop to a design, then fitted to the building. The word gets used two ways. In the wide sense it covers all architectural woodwork, cabinets included. In the narrower sense, the one most bidders mean when they separate the two, millwork is the woodwork that is not a box: wall paneling, wainscot, ceiling treatments, trim, casings, base, crown, window stools and aprons, door jambs and frames, mantels, column wraps, stair parts, feature walls and decorative screens.
Where casework is assembled from repeating units, millwork follows the walls, ceilings and openings of a specific room. It gets scribed to plaster, mitered around corners and run continuously across long elevations. A paneled wall in a River North restaurant or a wrapped column in a West Loop office has to be laid out against the actual building, which means field dimensions matter even more than they do with cabinets.
Some items blur both meanings. A built-in bookcase with paneled ends, crown at the top and a base that ties into the room trim is a set of boxes wrapped in millwork. A reception desk has a casework core and a millwork skin. These are the pieces that cause most scope disputes, and they deserve explicit language in your documents. You can see how a full studio handles both halves on our architectural millwork overview.
Millwork vs finish carpentry is a question of where the work happens
The comparison of millwork vs finish carpentry trips people up because the two words describe different things. Millwork describes a product made in a shop. Finish carpentry describes a trade performed on site: installing doors, hanging trim, setting base and casing, fitting stair parts and installing cabinets.
On a residential job, the finish carpenter often buys standard profiles from a lumberyard and cuts them in place. On a commercial job with custom profiles, veneered panels or matched grain, the parts are produced in a shop and arrive ready to install, and the installer's work is fitting and fastening, with no making involved. That handoff is why you need to know who installs the woodwork. If the shop that built it also installs it, the fit is that shop's responsibility from end to end. If the GC's carpenters install it, the shop's responsibility usually stops at the loading dock, and any gap between the drawings and the walls turns into a field problem.
Where the gray areas sit
Most projects run smoothly on the clear items. The trouble comes from a short list of pieces that both trades can plausibly claim or both can plausibly exclude.
Countertops are the classic example. Plastic laminate and wood tops usually ride with the casework. Stone, quartz and solid surface tops may belong to a separate countertop trade, to the casework contractor as a coordinated item, or to the GC. Whoever carries them needs to own the templating, the support brackets and the backsplash.
Panels and filler around cabinets are another. A tall cabinet run that dies into a paneled wall needs a scribe and a finished end, and the paneling needs a clean stop. If the casework and the paneling come from different shops, someone has to own the joint and the finish match at that line.
Then there is hardware. Cabinet hinges, slides and pulls normally belong to the casework. Door hardware for millwork doors, including concealed doors set into paneling, may sit in the door hardware section instead. Electrical grommets, power units built into desks and integrated lighting in shelving touch the electrical scope as well.
Blocking and backing round out the list. Wall paneling and wall cabinets need solid backing in the wall. That work is typically the framing contractor's, but the woodwork shop has to tell them where it goes, and that location should appear on the shop drawings.
How the line shows up in your documents
Most specifications follow a standard numbering system in which architectural woodwork, including custom casework, paneling and trim, sits under Division 06, while manufactured casework from product lines usually sits under Division 12 furnishings. If your project includes both, the bidders need to know which items fall where. A reception desk drawn as custom woodwork but tagged with a manufactured casework number will be priced by the wrong kind of contractor.
The cleanest documents do three things. First, they list the woodwork items by tag on the drawings so a bidder can count them. Second, they state in the specification which items include tops, hardware, lighting and installation. Third, they say whether the woodwork contractor is responsible for field measuring or is building to dimensions provided by the GC. Those three points answer most of the questions that would otherwise arrive as RFIs.
When you level bids, ask each shop to return a scope sheet that marks every tag as included, excluded or by others. Differences in the numbers usually turn out to be differences in the line between casework and millwork, and a sheet makes those visible in minutes.
Drawing that line on a live project? A fabricator's read on the split before bid day can save a round of RFIs later. Ask TDL Custom to review the woodwork scope with you; the initial meeting is free and can happen at your office or over video.
Submittals and shop drawings change with the scope
Casework submittals tend to be cabinet-centric: plan views with cabinet numbers, elevations showing door and drawer layouts, typical sections through the box, hardware cut sheets, and samples of box material, edge banding and finish. Reviewers can approve a typical section once and then check that every cabinet follows it.
Millwork submittals carry more room-specific information. Paneling elevations show panel layout, reveal locations and how the panels terminate at doors, windows and ceilings. Trim submittals include full-size profile drawings. Veneered walls need a layout of how leaves will be sequenced and matched across the run. Because millwork follows the building, these drawings are also where field dimensions and "verify in field" notes carry the most weight.
When one shop handles both, the submittal can show the joints between casework and millwork on one sheet, and those joints hide most coordination mistakes. It also makes a practical case for keeping both scopes with one commercial millwork partner on offices, retail and hospitality spaces: the boxes, the paneling and the trim come off one set of drawings and are finished to one standard.
Installation responsibility should be decided before bidding
Ask early who sets the boxes and who hangs the panels. Casework installation is fairly predictable: level the base, fasten to backing, join adjacent units, set tops. Millwork installation is slower and depends on the room. Panels need to be shimmed flat over walls that are rarely flat, trim needs to be scribed to floors that are rarely level, and long runs need to be laid out from a centerline so the reveals land where the designer intended.
If the woodwork contractor installs, include in the scope the protection of finished work after installation and the punch list. If the GC installs, include in the scope a site visit by the shop before fabrication and a clear statement that the shop builds to the field dimensions it receives. Either approach can work. Problems start when neither document says which one applies.
For one shop covering shop drawings, fabrication and installation, see the full range of millwork and cabinetry services TDL Custom provides to architects, designers and contractors, or how we handle custom cabinetry for commercial spaces.
Tag the items on the line before bids go out
Casework is the boxes, millwork is the woodwork that follows the room, and finish carpentry is the trade that installs either one on site. None of that is complicated on its own. The cost and schedule risk come from the items that sit on the line between them, so tag them, assign them and say who installs them before the bids go out.
A loose woodwork scope is far easier to tighten before the set is issued. Send the drawings to our team and we will go through the casework and millwork tags with you before it is issued for bid. Our office line is (773) 433-0042 if a call is easier.
Frequently Asked Questions
Is cabinetry considered millwork?
In the broad sense, yes: custom cabinets are shop-made architectural woodwork. When bidders separate the two terms, though, "millwork" usually means paneling, trim and other non-box woodwork, and cabinets are listed as casework. Your specification should say which meaning applies.
Who usually provides the countertops on a casework package?
It depends on the material and the documents. Wood and laminate tops commonly come with the casework, while stone and quartz tops are often a separate trade. Whoever provides them should also own templating, support brackets and backsplashes.
Can one shop handle both casework and millwork on a commercial job?
Yes, and it simplifies coordination at the joints where cabinets meet paneling or trim. One shop can match finishes across both and show those transitions on one set of shop drawings.
Does finish carpentry include building cabinets?
Not normally. Finish carpentry is the on-site installation trade. Cabinets are built in a shop, then installed by finish carpenters or by the shop's own installers.
What should a woodwork scope sheet include for bid leveling?
Each tagged item, marked as included, excluded or by others, along with tops, hardware, integrated lighting or power, field measuring, delivery, installation and protection after install. That one page makes most pricing gaps easy to explain.
