DecoMoldings

inspiration · Picture Frame

SW Iron Ore Office Chair Rail Molding

SW Iron Ore Office Chair Rail Molding: wall elevation, color data (LRV 5.6), 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 Iron Ore is a dark gray with a neutral undertone and a calculated LRV of 5.6. Against white trim the contrast ratio is 8.92:1, 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

A single horizontal rail at one third of the wall height, often used to split two paint colors. 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 3.35 m of 2.5 cm molding, or 2 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 Iron Ore

Grays sit in the middle of the contrast range: white trim reads clearly, while same-color trim gives a quiet, architectural look.

Wall elevation

SW Iron Ore 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 Iron OreSherwin-Williams#4343415.6neutraldark8.92:11.66:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneSW Iron Ore#4343411:1Trim painted the same color as the wall
matching whiteF&B All White#FBF8F49.37:1White with the closest undertone
contrastWhite#F4F3EE8.92:1Light trim for crisp contrast

Office wall sizes: picture frame chair rail layout

Wall widthFrames per rowFrame widthFrame height (upper / lower)Molding incl. 10% waste240 cm sticksChair rail pieces (300 cm)
9 ft330.7 in21 in3.02 m21
10 ft425 in21 in3.35 m22
12 ft524 in21 in4.02 m22

Cut list for a 10 ft wall

Planning cut list
PieceQuantityLength
Chair rail2300 cm lengths, 10 ft run

Pre-cut kits for this wall

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

Chair Rail Wall Molding Kit, 3 Upper & 3 Bottom Picture Frames | Easy Installation01 / KIT

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

From $165.00

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Chair Rail Half Wall Wainscoting Kit, 6 cm Rail | Self-Adhesive Easy Installation02 / KIT

Chair Rail Half Wall Wainscoting Kit, 6 cm Rail | Self-Adhesive Easy Installation

From $39.41

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Half Wall Wainscoting Kit with 4 cm Chair Rail | Self-Adhesive Easy Installation03 / KIT

Half Wall Wainscoting Kit with 4 cm Chair Rail | Self-Adhesive Easy Installation

From $33.41

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Board and Batten Half Wall Paneling Kit with Chair Rail | Pre-Cut MDF Easy Installation04 / KIT

Board and Batten Half Wall Paneling Kit with Chair Rail | Pre-Cut MDF Easy Installation

From $31.42

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Chair Rail Molding Kit with Half Wall Wainscoting, 6 cm Rail | Self-Adhesive05 / KIT

Chair Rail Molding Kit with Half Wall Wainscoting, 6 cm Rail | Self-Adhesive

From $39.41

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Questions

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

About 3.35 m (11 linear ft) including a chair rail and 10% waste, which is 2 sticks of 240 cm. That assumes 4 frames per row, 25 in wide, on an 8 ft ceiling.

Is SW Iron Ore warm or cool?

SW Iron Ore has a neutral undertone and reads as a dark gray. Its calculated LRV is 5.6, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as SW Iron Ore 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 (8.92:1), and black trim gives 1.66:1.

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