Short answer
The common door casing styles are colonial (a cove-and-bead profile), ranch (a plain taper), craftsman (wide flat boards with a built-up head), farmhouse (plain flat boards, often on plinth blocks), modern (slim and square, or no casing at all) and Victorian (fluted casing with corner rosettes). Typical widths run 2-1/4 to 3-1/2 in, and craftsman trim is often 4 in or wider.
Two things make a style
The profile is the shape you would see if you cut through the molding. Colonial casing curves and steps; flat stock is just a board. The head joint is how the top piece meets the legs: a 45 degree miter, a straight butt joint under a thicker head, or a square corner block. This Old House puts typical door trim at 2-1/4 to 3-1/2 in wide, with craftsman trim often 4 in or wider.
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01Traditional
Colonial casing
Best for: traditional and colonial houses, and anywhere you want detail without fuss
- Typical size
- 11/16 x 2-1/4 in
- Joint
- Mitered
- Profile
- Cove and bead
- The cove-and-bead shape is the classic colonial profile (This Old House)
- Sold primed, in MDF, finger-joint pine and hardwoods
- Wider versions around 3-1/4 in suit taller ceilings
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02Simple
Ranch (clamshell) casing
Best for: ranch and mid-century houses, rentals, and quick repairs
- Typical size
- 5/8 x 2-1/4 in
- Joint
- Mitered
- Profile
- Tapered, rounded edge
- A plain taper from a thin inner edge to a rounded outer edge
- No detail to hide a gap, so miters need to close well
- Often the lowest-cost stock casing
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03Built up
Craftsman casing
Best for: craftsman, bungalow and arts and crafts houses
- Typical size
- 3/4 x 3-1/2 in legs
- Joint
- Butted head
- Head
- Frieze plus cap
- Flat legs, a taller head board and a projecting cap
- Easy to make from flat primed boards
- Kits are sold with the head pieces ready to assemble
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04Plain
Farmhouse casing
Best for: farmhouse, cottage and rustic rooms
- Typical size
- 3/4 x 3-1/2 in
- Joint
- Butted
- Extras
- Plinth blocks
- Straight, plain boards, sometimes showing wood grain and knots (This Old House)
- Plinth blocks at the floor add weight
- The simplest style to cut: square ends only
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05Minimal
Modern casing
Best for: modern and contemporary rooms
- Typical size
- 1/2 x 2-1/2 in
- Joint
- Mitered
- Edges
- Square
- Flat stock with crisp square edges, or a thin beveled flat
- The most minimal option is no casing at all, which takes drywall detailing
- Square edges show every gap, so fit matters
Victorian: fluted casing with rosettes
Victorian casing is ornate and symmetrical, often fluted with narrow ribs, with an elaborate head (This Old House). The corners usually get rosettes: square blocks with a carved center that replace the miter. Plinth blocks finish the bottom. See rosettes and plinth blocks.
Mitered, butted or blocked
| Head joint | Looks | Cutting | Suits |
|---|---|---|---|
| Mitered | Continuous frame, sleek | Two 45 degree cuts per corner that must close tight | Colonial, ranch, modern; lower ceilings |
| Butted | Heavier head, architectural | Square cuts; the head can be wider and thicker | Craftsman, farmhouse; higher ceilings |
| Corner blocks | Decorative, period | Square cuts only; blocks hide the joint | Victorian, farmhouse |
This Old House notes mitered casing suits modern settings and lower ceilings but is harder to DIY, while butted trim is easier and allows a wider or more detailed head. If a miter saw is unfamiliar, a butted head or corner blocks remove the hardest cut. The install guide covers both.
How to choose
- Match the house first. A craftsman bungalow wants craftsman trim; a 1950s ranch wants something plain.
- Match the windows. Door and window casing usually share a profile.
- Size to the ceiling. 8 ft ceilings sit well with 2-1/4 to 3-1/4 in casing; 9 ft and higher can carry 3-1/2 in and up.
- Be honest about your saw skills. Square edges and plain profiles show gaps; colonial detail is a little more forgiving.
Not sure? The style picker turns these rules into a suggestion in five taps.
Questions people ask
What is the most popular door casing style?
Colonial and ranch profiles are the stock casing at most home centers, usually about 2-1/4 inches wide. Flat craftsman-style casing has become a common choice for painted trim because it is simple to make from flat boards.
What is the difference between mitered and butted casing?
Mitered casing joins at the head corners with two 45 degree cuts, which suits modern rooms and lower ceilings. Butted casing runs the head straight across the tops of the legs, which allows a wider, thicker head and is easier to cut (This Old House).
Should door casing match window casing?
Generally yes. Designers suggest keeping trim consistent through a house and matching door and window casing, with the front entry as the usual place to go wider or more detailed.
How wide should door casing be?
Typical door trim is 2-1/4 to 3-1/2 inches wide, and craftsman trim is often 4 inches or wider. Wider casing suits taller ceilings and larger rooms.
Sources
Last reviewed October 12, 2026. Profiles, sizes and listings change; check the product details before you buy, and follow the maker’s instructions.