DecoMoldings

inspiration · Picture Frame

SW Black Magic Office Wall Molding

SW Black Magic Office Wall Molding: wall elevation, color data (LRV 3.1), 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 quantity88.73 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 Black Magic is a very dark black with a neutral undertone and a calculated LRV of 3.1. Against white trim the contrast ratio is 11.66:1, 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 over the full wall height, upper and lower rows divided by a chair rail. On a 10 ft wall with an 8 ft ceiling this gives 4 frames per row, each 25 in wide, with 50 in upper and 21 in lower frames. The layout uses about 30.4 m of 2.5 cm molding, or 13 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 Black Magic

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 Black Magic 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 Black MagicSherwin-Williams#3231323.1neutralvery dark11.66:11.27:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneSW Black Magic#3231321:1Trim painted the same color as the wall
matching whiteF&B All White#FBF8F412.24:1White with the closest undertone
contrastWhite#F4F3EE11.66:1Light trim for crisp contrast

Office wall sizes: picture frame accent wall layout

Wall widthFrames per rowFrame widthFrame height (upper / lower)Molding incl. 10% waste240 cm sticksChair rail pieces (300 cm)
9 ft330.7 in50 / 21 in25.2 m111
10 ft425 in50 / 21 in30.4 m132
12 ft524 in50 / 21 in37.27 m162

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
Frame sides (upper row)850 in
Frame top and bottom (upper row)825 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.

Quick Peel and Stick Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation01 / KIT

Quick Peel and Stick Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation

From $73.00

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Nested Frame Nursery Wall Molding Kit, Ready to Assemble | 3 Upper & 3 Bottom Nested Frames02 / KIT

Nested Frame Nursery Wall Molding Kit, Ready to Assemble | 3 Upper & 3 Bottom Nested Frames

From $250.00

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Shadow Box Ready to Assemble Wall Molding Package, 2 Upper, 1 Center & 2 Bottom Frames | Easy Installation03 / KIT

Shadow Box Ready to Assemble Wall Molding Package, 2 Upper, 1 Center & 2 Bottom Frames | Easy Installation

From $157.00

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Decorative Board and Batten Wall Accent Molding Kit | Pre-Cut & Ready to Assemble04 / KIT

Decorative Board and Batten Wall Accent Molding Kit | Pre-Cut & Ready to Assemble

From $775.00

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Chair Rail Wall Molding Kit, 3 Upper & 3 Bottom Picture Frames | Easy Installation05 / KIT

Chair Rail Wall Molding Kit, 3 Upper & 3 Bottom Picture Frames | Easy Installation

From $165.00

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Precut Ready to Assemble Wall Molding Kit, 3 Upper, 3 Middle, & 3 Bottom Frames | Easy Installation06 / KIT

Precut Ready to Assemble Wall Molding Kit, 3 Upper, 3 Middle, & 3 Bottom Frames | Easy Installation

From $90.00

View kit

Questions

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

About 30.4 m (100 linear ft) including a chair rail and 10% waste, which is 13 sticks of 240 cm. That assumes 4 frames per row, 25 in wide, on an 8 ft ceiling.

Is SW Black Magic warm or cool?

SW Black Magic has a neutral undertone and reads as a very dark black. Its calculated LRV is 3.1, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as SW Black Magic 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 (11.66:1), and black trim gives 1.27:1.

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