DecoMoldings

inspiration · Picture Frame

SW Tricorn Black Office Wainscoting

SW Tricorn Black Office Wainscoting: wall elevation, color data (LRV 2.9), office layout for 9, 10, 12 ft walls, cut list, calculator and pre-cut kits.

Catalog snapshot View 2 sources ↓

Project calculator

Wall molding linear-foot estimate

Estimate for rectangular molding frames.

Estimated quantity33.73 linear feet

Divide by 7.87 ft (240 cm stick) and round up for the number of sticks.

Formula & assumptionsframe_count * 2 * (frame_width_inches + frame_height_inches) / 12 * (1 + waste_percent / 100)

Assumes identical rectangular frames. The waste allowance is editable. The estimate does not optimize cuts or include separate rails, baseboards, or other trim.

Overview

SW Tricorn Black is a very dark black with a neutral undertone and a calculated LRV of 2.9. Against white trim the contrast ratio is 12.04:1, which gives strong, graphic contrast; painted tone-on-tone, the picture frame pattern shows only through its shadow lines.

Picture Frame layout on a 10 ft office wall

Molding on the lower third of the wall under a chair rail; the upper wall stays plain. On a 10 ft wall with an 8 ft ceiling this gives 4 frames per row, each 25 in wide, 21 in tall. The layout uses about 13.63 m of 2.5 cm molding, or 6 sticks of 240 cm, including 10% waste. A molding wall behind the desk doubles as a video-call backdrop.

Building the picture frame pattern

Each frame is four pieces of 2.5 cm molding with 45 degree miters. Set the frames out from the center of the wall, keep every gap equal, and let the margins at the corners match the gaps.

Painting molding in SW Tricorn Black

Near-black walls turn molding into pure relief; use a satin or semi-gloss on the trim so the profile catches light.

Wall elevation

SW Tricorn Black wall, tone-on-tone trim, picture frame layout on a 10 ft wall. Colors are screen approximations.

Color data

ColorBrandCodeHexCalculated LRVUndertoneDepthContrast vs white trimContrast vs black trim
SW Tricorn BlackSherwin-Williams#2F2F302.9neutralvery dark12.04:11.23:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneSW Tricorn Black#2F2F301:1Trim painted the same color as the wall
matching whiteF&B All White#FBF8F412.63:1White with the closest undertone
contrastWhite#F4F3EE12.04:1Light trim for crisp contrast

Office wall sizes: picture frame wainscoting layout

Wall widthFrames per rowFrame widthFrame height (upper / lower)Molding incl. 10% waste240 cm sticksChair rail pieces (300 cm)
9 ft330.7 in21 in11.68 m51
10 ft425 in21 in13.63 m62
12 ft524 in21 in16.6 m72

Cut list for a 10 ft wall

Planning cut list
PieceQuantityLength
Frame top and bottom (lower row)825 in
Frame sides (lower row)821 in
Chair rail2300 cm lengths

Pre-cut kits for this wall

Pre-cut kits that fit this project. Open a kit for photos, options and pricing.

Wainscoting Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation01 / KIT

Wainscoting Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation

From $134.00

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Wainscoting Ready to Go Wall Molding Kit, 3 Upper & 3 Bottom Frames | Easy Installation02 / KIT

Wainscoting Ready to Go Wall Molding Kit, 3 Upper & 3 Bottom Frames | Easy Installation

From $75.00

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Half Wall Paneling Ready to Assemble Wainscoting Kit, 4 Bottom Frames | Easy Installation03 / KIT

Half Wall Paneling Ready to Assemble Wainscoting Kit, 4 Bottom Frames | Easy Installation

From $110.00

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Wainscoting Panels Kit, 3 Upper & 3 Bottom Frames | Pre-Cut Paintable Wall Molding04 / KIT

Wainscoting Panels Kit, 3 Upper & 3 Bottom Frames | Pre-Cut Paintable Wall Molding

From $75.00

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Peel and Stick Wainscoting Accent Wall Molding Kit, 2 to 4 Panels | Easy Installation05 / KIT

Peel and Stick Wainscoting Accent Wall Molding Kit, 2 to 4 Panels | Easy Installation

From $47.12

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Half Wall Shadow Box Ready to Assemble Wall Paneling Package, Factory Primed Half of Wall06 / KIT

Half Wall Shadow Box Ready to Assemble Wall Paneling Package, Factory Primed Half of Wall

From $235.00

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Questions

How much molding do I need for a 10 ft office wall with picture frame frames?

About 13.63 m (45 linear ft) including a chair rail and 10% waste, which is 6 sticks of 240 cm. That assumes 4 frames per row, 25 in wide, on an 8 ft ceiling.

Is SW Tricorn Black warm or cool?

SW Tricorn Black has a neutral undertone and reads as a very dark black. Its calculated LRV is 2.9, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as SW Tricorn Black walls?

Painting the molding the same color gives a modern, tone-on-tone finish where only shadows show the pattern. White trim adds strong, graphic contrast (12.04:1), and black trim gives 1.23:1.

How high should the chair rail be in a office?

About one third of the ceiling height: 32 in on an 8 ft ceiling, 36 in on 9 ft and 40 in on 10 ft. A molding wall behind the desk doubles as a video-call backdrop.

Trace the details

Sources & dates

Prices, options and photos come from our product catalog on the date shown. Layout tables are planning estimates; measure your wall before ordering.

  1. Paint color dataset (screen approximations; LRV calculated)Recorded November 11, 2026
  2. DecoMoldings product catalogRecorded November 11, 2026