DecoMoldings

inspiration · Picture Frame

BM Hale Navy Staircase Accent Wall Molding

BM Hale Navy Staircase Accent Wall Molding: wall elevation, color data (LRV 7.1), staircase layout for 8, 12, 16 ft walls, cut list, calculator and pre-cut ki

Catalog snapshot View 2 sources ↓

Project calculator

Wall molding linear-foot estimate

Estimate for rectangular molding frames.

Estimated quantity109.08 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

BM Hale Navy (HC-154) is a dark purple with a violet undertone and a calculated LRV of 7.1. Against white trim the contrast ratio is 7.82:1, 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 over the full wall height, upper and lower rows divided by a chair rail. On a 12 ft wall with an 8 ft ceiling this gives 5 frames per row, each 24 in wide, with 50 in upper and 21 in lower frames. The layout uses about 37.27 m of 2.5 cm molding, or 16 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 BM Hale Navy

Muted violets work tone-on-tone in bedrooms; keep the sheen low on the wall.

Wall elevation

BM Hale Navy 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
BM Hale NavyBenjamin MooreHC-154#444C577.1violetdark7.82:11.9:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneBM Hale Navy#444C571:1Trim painted the same color as the wall
matching whiteBM Chantilly Lace#F4F6F17.98:1White with the closest undertone
contrastWhite#F4F3EE7.82:1Light trim for crisp contrast

Staircase 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)
8 ft326.7 in50 / 21 in23.53 m101
12 ft524 in50 / 21 in37.27 m162
16 ft627.3 in50 / 21 in47.5 m202

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
Frame sides (upper row)1050 in
Frame top and bottom (upper row)1024 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.

Picture Frame Renter Friendly Peel and Stick Wall Trim Kit, 3 Frames | Quick Easy Installation01 / KIT

Picture Frame Renter Friendly Peel and Stick Wall Trim Kit, 3 Frames | Quick Easy Installation

From $70.00

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Peel and Stick Wall Molding Kit, 2 Upper & 2 Bottom Frames | Easy Self-Adhesive Installation02 / KIT

Peel and Stick Wall Molding Kit, 2 Upper & 2 Bottom Frames | Easy Self-Adhesive Installation

From $80.00

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Self Adhesive Accent Wall Molding Kit, 3 Upper and 2 Bottom Nested Frames | Pre-Cut & Primed03 / KIT

Self Adhesive Accent Wall Molding Kit, 3 Upper and 2 Bottom Nested Frames | Pre-Cut & Primed

From $220.00

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Geometric Asymmetric Wall Molding Kit, Easy Installation for Living Areas | Pre-Cut & Primed04 / KIT

Geometric Asymmetric Wall Molding Kit, Easy Installation for Living Areas | Pre-Cut & Primed

From $202.00

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Shadow Box Ready to Assemble Wall Molding Package, 2 Upper, 1 Center & 2 Bottom Frames | Easy Installation05 / 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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Half Wall Arched Wainscoting Panels Kit | Pre-Cut MDF Easy Installation06 / KIT

Half Wall Arched Wainscoting Panels Kit | Pre-Cut MDF Easy Installation

From $73.60

View kit

Questions

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

About 37.27 m (122 linear ft) including a chair rail and 10% waste, which is 16 sticks of 240 cm. That assumes 5 frames per row, 24 in wide, on an 8 ft ceiling.

Is BM Hale Navy warm or cool?

BM Hale Navy has a violet undertone and reads as a dark purple. Its calculated LRV is 7.1, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as BM Hale Navy 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 (7.82:1), and black trim gives 1.9:1.

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