DecoMoldings

inspiration · Picture Frame

SW Web Gray Accent Wall Molding

SW Web Gray Accent Wall Molding: wall elevation, color data (LRV 13.1), living room layout for 12, 15, 18 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 quantity133.76 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 Web Gray is a dark gray with a neutral undertone and a calculated LRV of 13.1. Against white trim the contrast ratio is 5.23:1, which gives clear contrast; painted tone-on-tone, the picture frame pattern shows only through its shadow lines.

Picture Frame layout on a 15 ft living room wall

Molding over the full wall height, upper and lower rows divided by a chair rail. On a 15 ft wall with an 8 ft ceiling this gives 6 frames per row, each 25.3 in wide, with 50 in upper and 21 in lower frames. The layout uses about 45.82 m of 2.5 cm molding, or 20 sticks of 240 cm, including 10% waste. Center the layout on the sofa or TV rather than the wall when furniture is off-center.

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 Web Gray

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 Web Gray wall, tone-on-tone trim, picture frame layout on a 15 ft wall. Colors are screen approximations.

Color data

ColorBrandCodeHexCalculated LRVUndertoneDepthContrast vs white trimContrast vs black trim
SW Web GraySherwin-Williams#61666913.1neutraldark5.23:12.84:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneSW Web Gray#6166691:1Trim painted the same color as the wall
matching whiteBM Chantilly Lace#F4F6F15.34:1White with the closest undertone
contrastWhite#F4F3EE5.23:1Light trim for crisp contrast

Living Room 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)
12 ft524 in50 / 21 in37.27 m162
15 ft625.3 in50 / 21 in45.82 m202
18 ft726.3 in50 / 21 in54.37 m232

Cut list for a 15 ft wall

Planning cut list
PieceQuantityLength
Frame top and bottom (lower row)1225.3 in
Frame sides (lower row)1221 in
Frame sides (upper row)1250 in
Frame top and bottom (upper row)1225.3 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 Arched Wainscoting Panels Kit | Pre-Cut MDF Easy Installation01 / KIT

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

From $73.60

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Pre-Cut Board and Batten Wall Trim Panels, Easy DIY Wall Moulding | Quick Installation W:75mm x T:8mm02 / KIT

Pre-Cut Board and Batten Wall Trim Panels, Easy DIY Wall Moulding | Quick Installation W:75mm x T:8mm

From $733.00

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Quick Peel and Stick Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation03 / KIT

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

From $73.00

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3 Tier Peel and Stick Picture Frame Molding, 3 Upper, 3 Middle & 3 Bottom Frames | Easy Installation04 / KIT

3 Tier Peel and Stick Picture Frame Molding, 3 Upper, 3 Middle & 3 Bottom Frames | Easy Installation

From $80.00

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Wainscoting Peel and Stick Wall Molding Kit, 4 Upper, 4 Middle, and 4 Bottom Frames | Easy Installation05 / 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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Accent Board and Batten Design Wall Covering Kit, Factory Primed | Pre-Cut & Ready to Assemble06 / KIT

Accent Board and Batten Design Wall Covering Kit, Factory Primed | Pre-Cut & Ready to Assemble

From $607.00

View kit

Questions

How much molding do I need for a 15 ft living room wall with picture frame frames?

About 45.82 m (150 linear ft) including a chair rail and 10% waste, which is 20 sticks of 240 cm. That assumes 6 frames per row, 25.3 in wide, on an 8 ft ceiling.

Is SW Web Gray warm or cool?

SW Web Gray has a neutral undertone and reads as a dark gray. Its calculated LRV is 13.1, so it absorbs light, so tone-on-tone molding reads as deep relief.

Should trim be the same color as SW Web Gray walls?

Painting the molding the same color gives a modern, tone-on-tone finish where only shadows show the pattern. White trim adds clear contrast (5.23:1), and black trim gives 2.84:1.

How high should the chair rail be in a living room?

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. Center the layout on the sofa or TV rather than the wall when furniture is off-center.

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