DecoMoldings

inspiration · Picture Frame

SW Pure White Walls with SW Tricorn Black Trim

SW Pure White Walls with SW Tricorn Black Trim: wall elevation, color data (LRV 83.7), living room layout for 12, 15, 18 ft walls, cut list, calculator and pr

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 Pure White is a white with a green undertone and a calculated LRV of 83.7. With SW Tricorn Black trim the molding has strong, graphic contrast (contrast ratio 11.3:1).

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 Pure White

Whites show molding through shadow only, so side light (a window or wall sconce) brings the pattern out. Use satin on trim and eggshell on the wall to add a slight sheen difference.

Wall elevation

SW Pure White wall, SW Tricorn Black trim, picture frame layout on a 15 ft wall. Colors are screen approximations.

Color data

ColorBrandCodeHexCalculated LRVUndertoneDepthContrast vs white trimContrast vs black trim
SW Pure WhiteSherwin-Williams#EDECE683.7greenwhite1.07:113.93:1
SW Tricorn BlackSherwin-Williams#2F2F302.9neutralvery dark12.04:11.23:1

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.

Shaker MDF Paneling, Long-Lasting Pre-Cut for Easy Installation | Unprimed Wall Molding W:75mm x T:8mm01 / KIT

Shaker MDF Paneling, Long-Lasting Pre-Cut for Easy Installation | Unprimed Wall Molding W:75mm x T:8mm

From $307.00

View kit
Modern Wall Trim Kit for Bedroom & Headboard Design, 3 Frames | Factory Primed for Easy Installation02 / KIT

Modern Wall Trim Kit for Bedroom & Headboard Design, 3 Frames | Factory Primed for Easy Installation

From $182.00

View kit
Precut Ready to Assemble Wall Molding Kit, 3 Upper, 3 Middle, & 3 Bottom Frames | Easy Installation03 / KIT

Precut Ready to Assemble Wall Molding Kit, 3 Upper, 3 Middle, & 3 Bottom Frames | Easy Installation

From $90.00

View kit
Oval Decorative Wall Molding Kit, Small to Large | Pre-Cut MDF Custom Sizes04 / KIT

Oval Decorative Wall Molding Kit, Small to Large | Pre-Cut MDF Custom Sizes

From $79.80

View kit
Modern Pre-Cut Flat Wall Molding Kit for Living Areas | Factory Primed & Paintable05 / KIT

Modern Pre-Cut Flat Wall Molding Kit for Living Areas | Factory Primed & Paintable

From $130.00

View kit
Nested Picture Frame French Trim Wall Molding Kit, 2 Frames, Self-Adhesive Paintable06 / KIT

Nested Picture Frame French Trim Wall Molding Kit, 2 Frames, Self-Adhesive Paintable

From $110.00

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 Pure White warm or cool?

SW Pure White has a green undertone and reads as a white white. Its calculated LRV is 83.7, so it reflects a lot of light and keeps molding shadows soft.

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