DecoMoldings

inspiration · Picture Frame

SW Krypton Hallway Wall Molding

SW Krypton Hallway Wall Molding: wall elevation, color data (LRV 51.8), hallway layout for 6, 10, 14 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 quantity88.73 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 Krypton is a light gray with a blue (cool) undertone and a calculated LRV of 51.8. Against white trim the contrast ratio is 1.66:1, which gives soft contrast; painted tone-on-tone, the picture frame pattern shows only through its shadow lines.

Picture Frame layout on a 10 ft hallway wall

Molding over the full wall height, upper and lower rows divided by a chair rail. On a 10 ft wall with an 8 ft ceiling this gives 4 frames per row, each 25 in wide, with 50 in upper and 21 in lower frames. The layout uses about 30.4 m of 2.5 cm molding, or 13 sticks of 240 cm, including 10% waste. Long, narrow walls suit a repeating rhythm of equal frames.

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 Krypton

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 Krypton 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 KryptonSherwin-Williams#B8C0C351.8blue (cool)light1.66:18.92:1

Trim color pairings

PairingTrim colorHexContrastEffect
tone-on-toneSW Krypton#B8C0C31:1Trim painted the same color as the wall
matching whiteBM Chantilly Lace#F4F6F11.7:1White with the closest undertone
contrastBlack#1F1F1F8.92:1Dark trim for a graphic outline

Hallway 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)
6 ft230 in50 / 21 in16.65 m71
10 ft425 in50 / 21 in30.4 m132
14 ft528.8 in50 / 21 in40.62 m172

Cut list for a 10 ft wall

Planning cut list
PieceQuantityLength
Frame top and bottom (lower row)825 in
Frame sides (lower row)821 in
Frame sides (upper row)850 in
Frame top and bottom (upper row)825 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.

U Shaped Arch Wall Trim Molding Kit | Pre-Cut MDF Medium & Large01 / KIT

U Shaped Arch Wall Trim Molding Kit | Pre-Cut MDF Medium & Large

From $81.40

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Wall Panels for Living Room, Flat Wall Molding Kit | Pre-Cut & Primed02 / KIT

Wall Panels for Living Room, Flat Wall Molding Kit | Pre-Cut & Primed

From $205.00

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Arched Accent Wall Trim Molding Kit, 3 Widths | Pre-Cut MDF03 / KIT

Arched Accent Wall Trim Molding Kit, 3 Widths | Pre-Cut MDF

From $58.40

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Accent Wall Picture Frame Molding Package, Custom Panel Widths | Easy Installation04 / KIT

Accent Wall Picture Frame Molding Package, Custom Panel Widths | Easy Installation

From $53.00

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Paintable Pre-Cut Wall Design: Ready to Assemble Board & Batten MDF | Effortless Installation W:75mm x T:8mm05 / KIT

Paintable Pre-Cut Wall Design: Ready to Assemble Board & Batten MDF | Effortless Installation W:75mm x T:8mm

From $840.00

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Wainscoting Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation06 / KIT

Wainscoting Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation

From $134.00

View kit

Questions

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

About 30.4 m (100 linear ft) including a chair rail and 10% waste, which is 13 sticks of 240 cm. That assumes 4 frames per row, 25 in wide, on an 8 ft ceiling.

Is SW Krypton warm or cool?

SW Krypton has a blue (cool) undertone and reads as a light gray. Its calculated LRV is 51.8, so it sits in the mid range, where molding shadows show clearly.

Should trim be the same color as SW Krypton walls?

Painting the molding the same color gives a modern, tone-on-tone finish where only shadows show the pattern. White trim adds soft contrast (1.66:1), and black trim gives 8.92:1.

How high should the chair rail be in a hallway?

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. Long, narrow walls suit a repeating rhythm of equal frames.

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