DecoMoldings

inspiration · Picture Frame

Black Bathroom Wainscoting

Black Bathroom Wainscoting: wall elevation, color data (LRV 1.4), bathroom layout for 5, 7, 9 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 quantity24.04 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

Black is a very dark black with a neutral undertone and a calculated LRV of 1.4. Against white trim the contrast ratio is 14.84:1, which gives strong, graphic contrast; painted tone-on-tone, the picture frame pattern shows only through its shadow lines.

Picture Frame layout on a 7 ft bathroom wall

Molding on the lower third of the wall under a chair rail; the upper wall stays plain. On a 7 ft wall with an 8 ft ceiling this gives 3 frames per row, each 22.7 in wide, 21 in tall. The layout uses about 9.67 m of 2.5 cm molding, or 5 sticks of 240 cm, including 10% waste. Use moisture-resistant polystyrene outside the shower spray zone and a bathroom-rated paint.

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 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

Black wall, tone-on-tone trim, picture frame layout on a 7 ft wall. Colors are screen approximations.

Color data

ColorBrandCodeHexCalculated LRVUndertoneDepthContrast vs white trimContrast vs black trim
BlackGeneric#1F1F1F1.4neutralvery dark14.84:11:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneBlack#1F1F1F1:1Trim painted the same color as the wall
matching whiteF&B All White#FBF8F415.57:1White with the closest undertone
contrastWhite#F4F3EE14.84:1Light trim for crisp contrast

Bathroom wall sizes: picture frame wainscoting layout

Wall widthFrames per rowFrame widthFrame height (upper / lower)Molding incl. 10% waste240 cm sticksChair rail pieces (300 cm)
5 ft224 in21 in6.71 m31
7 ft322.7 in21 in9.67 m51
9 ft330.7 in21 in11.68 m51

Cut list for a 7 ft wall

Planning cut list
PieceQuantityLength
Frame top and bottom (lower row)622.7 in
Frame sides (lower row)621 in
Chair rail1300 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 Ready to Assemble Factory Primed Wall Covering Half of Wall Kit | Easy Installation W:74mm T:10mm01 / KIT

Half Wall Ready to Assemble Factory Primed Wall Covering Half of Wall Kit | Easy Installation W:74mm T:10mm

From $415.00

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Vertical Wainscoting Wall Molding Kit, 3 Vertical Frames | Self-Adhesive Easy Installation02 / KIT

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

From $90.00

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Wainscoting Peel and Stick Wall Molding Kit, 4 Upper, 4 Middle, and 4 Bottom Frames | Easy Installation03 / KIT

Wainscoting Peel and Stick Wall Molding Kit, 4 Upper, 4 Middle, and 4 Bottom Frames | Easy Installation

From $170.00

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Wainscoting Accent Wall Kit: Effortless Elegance with Precut Factory Primed Wall Molding, Create 1 Upper and 2 Bottom Frames04 / KIT

Wainscoting Accent Wall Kit: Effortless Elegance with Precut Factory Primed Wall Molding, Create 1 Upper and 2 Bottom Frames

From $123.00

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Wainscoting Panels Kit, 3 Upper & 3 Bottom Frames | Pre-Cut Paintable Wall Molding05 / KIT

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

From $75.00

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French Picture Frame Wainscoting Wall Molding Kit | Self-Adhesive Easy Installation06 / KIT

French Picture Frame Wainscoting Wall Molding Kit | Self-Adhesive Easy Installation

From $189.70

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Questions

How much molding do I need for a 7 ft bathroom wall with picture frame frames?

About 9.67 m (32 linear ft) including a chair rail and 10% waste, which is 5 sticks of 240 cm. That assumes 3 frames per row, 22.7 in wide, on an 8 ft ceiling.

Is Black warm or cool?

Black has a neutral undertone and reads as a very dark black. Its calculated LRV is 1.4, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as 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 (14.84:1), and black trim gives 1:1.

How high should the chair rail be in a bathroom?

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. Use moisture-resistant polystyrene outside the shower spray zone and a bathroom-rated paint.

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