model

Window Trim Cost (2026): Drywall Returns to Stained Craftsman and Ornamental Casing, With Labor Hours

One window and a room of six priced in seven trim styles, painted and stained, with the takeoff, miters against butt joints, drywall returns and jamb extensions.

By Clamp ResearchReviewed by Emmanuel ForgePublished Oct 31, 2026✓ Reviewed Oct 2026

Direct answer: In Clamp's catalog one 36 x 60 in window trimmed with a stool and apron is $244 direct painted and $378 in stained hardwood. A picture frame is the cheapest at $165; a drywall return with no casing $275; Craftsman $299; an ornamental head $354 painted or $544 stained. A room of six windows runs $992 to $3,430.

The assumptions

This model assumes

A 36 x 60 in window with 2 1/2 in casing and a 3/16 in reveal; a room of six
New trim with the old already off, unless a row says so
Direct cost from Clamp's October 2026 catalog, before markup
Painted: primed MDF or finger-joint pine; stained: solid hardwood

The model, step by step

1One window, measured

A window 36 in between the side jambs and 60 in from the stool to the head jamb, with 2 1/2 in casing set back a 3/16 in reveal. Each casing piece is cut to its long point: the opening plus the reveal and casing width at each mitered end.

Head: 36 + 2 x 2 11/16

= 41 3/8 in

Legs: 2 at 62 11/16 in

Casing: about 13.9 lf

Stool 42 7/8, apron 41 3/8

Picture frame: 17.8 lf

14 lf + stool and apron

Illustration of a 36 by 60 in window cased on the head and legs over a stool and apron, with the head marked 41 3/8 in and the legs 62 11/16 in; the list reads Head 41 3/8 in, Legs 2 at 62 11/16 in, Stool 42 7/8 in with 3/4 in horns, Apron 41 3/8 in, Casing about 14 lf

One window, measured

The window with a stool and apron, drawn in the style of Quick Clamp's sketch pad: casing lengths are mitered, to the long point; the stool and apron lengths in amber. Illustration with typed labels. Demo data.

Reveals (3/16 or 1/4 in), stool horns (3/4 in past the casing in JLC's example) and apron ends are choices, not standards; pick them and keep them. Clamp's catalog buys 10 percent over, a budgeting number: for six picture frames, 12 ft sticks waste about 12 percent and 8 ft sticks about 35.

2Seven ways to trim it

From no casing at all to a built-up head, the style sets the feet of trim, the joints and the hours.

One window, direct cost, Clamp's catalog
Style	Painted	Stained
Drywall return	$275	$354
Picture frame	$165	$249
Stool and apron	$244	$378
Craftsman	$299	$461
Rosettes	$299	$461
Ornamental head	$354	$544
Backband	$372	$572

Illustration of the same 36 by 60 in window seven times: a drywall return, picture-frame casing, stool and apron, Craftsman with a head cap, backband, rosettes at the head corners, and an ornamental built-up head, with the return and the build-ups outlined in amber; the list reads Window 36 by 60 in, Casing 2 1/2 in, Reveal 3/16 in

Seven styles

Seven trim styles on the same window, drawn in the style of Quick Clamp's sketch pad: the parts the return and the built-up styles add in amber. Illustration with typed labels. Demo data.

Direct cost before markup, from Clamp's October 2026 catalog, new trim with the old already off; stained is solid hardwood with stain and clear coat. Painted rows use primed MDF and an MDF stool ($24.50; the catalog's mid stool is $55). A drywall return gets no trim paint, and its stool is 60 percent of a stool-and-apron set; its stained price is a hardwood stool, not a stained return. Clamp prices Craftsman and rosettes both as 6 more feet of casing; blocks aren't priced separately. WindsorONE's Craftsman recipe: 1x4 or 1x5 casing, a 5/4 frieze and a 1x2 cap.

3A room of six windows

Six of the same window, priced as six times one; setup isn't discounted.

Six windows, direct cost
Style	Painted	Stained	Hours
Drywall return	$1,648	$2,125	14
Picture frame	$992	$1,492	8
Stool and apron	$1,463	$2,270	11
Craftsman	$1,793	$2,767	14
Rosettes	$1,793	$2,767	14
Ornamental head	$2,124	$3,264	17
Backband	$2,234	$3,430	18

One painted stool-and-apron window, line by line

Casing, 14 lf$60 to set, $32 stock

Stool and apron$75 to set, $25 stock

Paint, 20 lf$52

Hours are painted. Sold at a 1.50 markup, six painted stool-and-apron windows are about $2,195.

4Painted or stained

Paint hides filler, finger joints and small gaps; stain shows them. Stain-grade trim is solid wood, matched at the joints and finished with stain and a clear coat.

Casing stock, retail per foot
Stock	Per foot
Primed MDF, 2 1/4 inHome Depot, October 2026	$1.06
Primed finger-joint poplar, 3 1/2 in	$2.40
Red oak, 2 1/4 in	$3.70
Walnut, 3 1/4 inAdvantage Lumber, to 7 ft; $6.37 longer, plus $250 setup	$5.88
White oak, contemporaryTo 7 ft; $7.60 longer; both out of stock	$7.00

AWI's trim standard allows filled defects under paint but wants transparent-finish parts matched for color and grain. The one contractor figure for the upcharge is old: casing at $2.00 a foot paint grade and $2.75 stain grade (WOODWEB, 2009). Clamp prices stained casing install at about 1.4 times paint grade and its other labor at 1.2 times, plus stain-grade stock and finish.

5Miters or butt joints

Picture-frame casing is mitered at all four corners, and miters open as the wood takes on and gives up moisture through the year. Craftsman casing butts the legs into a flat head, and a backband covers the casing's outer edge; both hide that movement.

From Fine Homebuilding (2023)

MitersOpen with seasonal moisture change; glue them and add biscuits, dominoes or pocket screws

Butt jointsHide seasonal movement and are more likely to stay closed

BackbandSet over butt-jointed casing; leave it a few hundredths long

That's one reason stained picture frames take more care: a gap in a stained miter can't be filled and painted over.

6No trim: drywall returns

A drywall return wraps the window opening in drywall and corner bead instead of casing it, usually with a wood stool or a drywall sill. It isn't cheaper than a simple casing: the bead, tape, three coats and sanding take about two hours a window with dry time.

One window, painted, direct cost
Style	Cost	Hours
Picture frame	$165	1.4 hr
Drywall return with a stool	$275	2.4 hr
Stool and apron	$244	1.9 hr

Trim-Tex covers the bead: extra-wide L-beads for the return, drywall hung tight to the window so no tear-away bead is needed, and an optional wood sill. Clamp prices the return with a stool; a drywall sill drops it.

7Jamb extensions and tear-out

If the window's jamb stops short of the finished wall, casing won't sit flat. Jamb extensions bring it flush; window makers like Marvin sell them or tell you how to add them.

Added to one window
Item	Adds
Jamb extensionsRip, fit and fasten, per window	+$100
Remove the old trimPull and haul away, a quarter load a window	+$94

Replacement windows often need extensions; count them on the walk-through.

8What carpenters charge, and the hours

A few carpenters publish window trim prices, mostly starting points. None separates every style, painted and stained.

Published prices per window
Source	Price
Red Stag, Los Angeles: pinePrimed, paint not included; poplar or oak $140 to $220	$80 to $140
Red Stag: head cap detailFull crown detail +$120 to $200	+$40 to $80
Handyman Jacks, Utah	From $145
DiLeo's Carpentry, CharlestonMaterial and labor	$200 to $500
AngiAverage project $900	$350 to $1,600
Clamp, stool and apron, sold at 1.50Painted	$366

Hours: Craftsman's National Construction Estimator (2016) allows about 0.33 hour for three-sided casing, 0.5 for four-sided, 0.4 for a stool on a wood jamb (0.5 at a drywall wrap) and 0.16 to 0.32 for an apron without or with returns, on prepared openings. JMB Builders (Twin Cities) says 1 1/2 to 2 hours a Craftsman window. Clamp allows 1.36 hr for a picture frame and 2.35 hr for Craftsman, painting included.

Estimating allowances and elapsed time aren't the same as person-hours, and setup and layout don't scale down with the count. Track your own hours by style.

What it means

What to doPrice window trim by the window and the style, painted or stained. Put drywall returns, jamb extensions and tear-out on their own lines, and steer stained work toward butt joints that stay closed.

The window is the same 36 x 60 in every row. Seven styles run $165 to $572.

Every trim style on its own line

Clamp's estimate prices window trim by the window in the style you pick, from a drywall return to an ornamental head, painted or stained, with jamb extensions and tear-out as separate lines.

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Put your own rates and hours per window by style in your catalog. The next trim quote takes ten minutes.

Questions

How much does it cost to trim a window?

About $244 direct for a 36 x 60 in window with casing, a stool and an apron, painted, in Clamp's catalog; $165 for a picture frame and $354 for an ornamental head. Stained hardwood runs about 55 percent more.

What are the window casing styles?

From plain to ornate: a drywall return with no casing, picture-frame casing mitered on four sides, casing over a stool with an apron, Craftsman flat casing with a head cap, casing with a backband, rosettes at the head corners, and a built-up head with frieze and crown.

Is a drywall return cheaper than window trim?

Not usually. A drywall return is about $275 a window in Clamp's catalog because of the bead, tape, three coats and dry time, against $165 for a painted picture frame.

How much more does stained window trim cost?

About 55 percent more for a stool-and-apron window in Clamp's catalog: $378 stained against $244 painted. One contractor's old rates put stain-grade casing 37.5 percent over paint grade.

Should window casing be mitered or butted?

Either works; miters open as the wood's moisture changes through the year, while butt joints, as in Craftsman casing or under a backband, hide that movement and stay closed.

Sources & provenance

Clamp estimating catalog (2026-10): interior trim, window casing styles, stool and apron, drywall returns and jamb extensions Clamp Research
A Guide to Mitered Joints That Won't Open Fine Homebuilding (Campbell, #314) (research)
Interior Window Trim Ideas Fine Homebuilding (Aaron Fagan) (research)
No-Trim Drywall Returns for Windows Fine Homebuilding (Myron R. Ferguson) (research)
The Ultimate Guide to Drywall Window Returns Trim-Tex (official source)
Jamb Extension Installation (19972109) Marvin (official source)
Millwork and Wood Trim, 3.4 Aesthetic Architectural Woodwork Institute (ANSI/AWI 0622.0646-2024) (official source)
356 Primed MDF Casing, 2 1/4 in x 84 in Home Depot (Austin, TX store) (research)
Unfinished Solid Red Oak Casing, 5/8 x 2 1/4 x 84 in Home Depot (Austin, TX store) (research)
Primed Poplar Finger-Joint Casing 719PFJ, 11/16 x 3 1/2 x 90 in Home Depot (Austin, TX store) (research)
Primed Finger-Jointed Pine Window Stool, 1 1/4 x 5 1/4 x 84 in Home Depot (Austin, TX store) (research)
Preassembled 36 in Craftsman Crosshead, Primed MDF Home Depot (Austin, TX store) (research)
MDF Rosette R10MDF, 7/8 x 3 1/2 in Home Depot (Austin, TX store) (research)
Walnut Colonial Case Molding Advantage Lumber (research)
Charging for Trim Work WOODWEB Knowledge Base (research)
Window Trim Installation Cost Angi (research)
Window & Door Trim Installation Red Stag (Los Angeles) (research)
Trim & Molding Installation Handyman Jacks (Wasatch Front, UT) (research)
Window Casing & Trim DiLeo's Carpentry (Charleston, SC) (research)
2016 National Construction Estimator (preview), pp. 53-54 Craftsman Book Company (research)
Craftsman Window Casing JMB Builders (Twin Cities, MN) (research)
Classical Craftsman WindsorONE (official source)
Casing Windows JLC (Greg Burnet) (research)

Changes: Oct 31, 2026: Initial publication after owner approval. Built from Clamp's catalog (the window trim style, stool and apron, drywall return and jamb extension lines priced that day), AWI, Fine Homebuilding, JLC, WindsorONE, Trim-Tex, Marvin, Craftsman's estimator, retail stock prices and carpenters' published prices, by two research passes, an independent GPT cross-check and an independent fact-check.