DecoMoldings

inspiration · Picture Frame

SW Iron Ore Staircase Wainscoting

SW Iron Ore Staircase Wainscoting: wall elevation, color data (LRV 5.6), staircase layout for 8, 12, 16 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 quantity41.25 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 12 ft staircase wall

Molding on the lower third of the wall under a chair rail; the upper wall stays plain. On a 12 ft wall with an 8 ft ceiling this gives 5 frames per row, each 24 in wide, 21 in tall. The layout uses about 16.6 m of 2.5 cm molding, or 7 sticks of 240 cm, including 10% waste. Frames follow the stair angle: keep the bottom rail parallel to the stringer.

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 12 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

Staircase wall sizes: picture frame wainscoting layout

Wall widthFrames per rowFrame widthFrame height (upper / lower)Molding incl. 10% waste240 cm sticksChair rail pieces (300 cm)
8 ft326.7 in21 in10.67 m51
12 ft524 in21 in16.6 m72
16 ft627.3 in21 in21.57 m92

Cut list for a 12 ft wall

Planning cut list
PieceQuantityLength
Frame top and bottom (lower row)1024 in
Frame sides (lower row)1021 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.

Half Wall Shadow Box Ready to Assemble Wall Paneling Package, Factory Primed Half of Wall01 / KIT

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

From $235.00

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Shaker Board and Batten Grid Wainscoting Kit, 1 to 5 Sets | Self-Adhesive Easy Installation02 / KIT

Shaker Board and Batten Grid Wainscoting Kit, 1 to 5 Sets | Self-Adhesive Easy Installation

From $69.80

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Vertical Wainscoting Wall Molding Kit, 3 Vertical Frames | Self-Adhesive Easy Installation03 / KIT

Vertical Wainscoting Wall Molding Kit, 3 Vertical Frames | Self-Adhesive Easy Installation

From $90.00

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Living Room Entryway Picture Frame Wainscoting Kit | Easy Installation04 / KIT

Living Room Entryway Picture Frame Wainscoting Kit | Easy Installation

From $51.25

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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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Board and Batten Wall Kit, Shaker Grid 1 to 5 Sets | Self-Adhesive Wainscoting06 / KIT

Board and Batten Wall Kit, Shaker Grid 1 to 5 Sets | Self-Adhesive Wainscoting

From $69.80

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Questions

How much molding do I need for a 12 ft staircase wall with picture frame frames?

About 16.6 m (54 linear ft) including a chair rail and 10% waste, which is 7 sticks of 240 cm. That assumes 5 frames per row, 24 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 staircase?

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. Frames follow the stair angle: keep the bottom rail parallel to the stringer.

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