inspiration · Picture Frame
Modern Wall Molding
Modern Wall Molding: wall elevation, living room layout for 12, 15, 18 ft walls, cut list, calculator and pre-cut kits.
Project calculator
Overview
Single rectangles of 2.5 cm molding, evenly spaced. The most adaptable layout: it works on short and long walls and in any room. Modern rooms (modern and minimalist) typically use picture frame, geometric, board and batten layouts: Flat profiles, fewer and larger frames, and trim painted the same color as the wall.
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.
Modern look
Flat profiles, fewer and larger frames, and trim painted the same color as the wall. Recommended layouts: picture frame, geometric, board and batten.
Wall elevation
Living Room wall sizes: picture frame accent wall layout
| Wall width | Frames per row | Frame width | Frame height (upper / lower) | Molding incl. 10% waste | 240 cm sticks | Chair rail pieces (300 cm) |
|---|---|---|---|---|---|---|
| 12 ft | 5 | 24 in | 50 / 21 in | 37.27 m | 16 | 2 |
| 15 ft | 6 | 25.3 in | 50 / 21 in | 45.82 m | 20 | 2 |
| 18 ft | 7 | 26.3 in | 50 / 21 in | 54.37 m | 23 | 2 |
Cut list for a 15 ft wall
| Piece | Quantity | Length |
|---|---|---|
| Frame top and bottom (lower row) | 12 | 25.3 in |
| Frame sides (lower row) | 12 | 21 in |
| Frame sides (upper row) | 12 | 50 in |
| Frame top and bottom (upper row) | 12 | 25.3 in |
| Chair rail | 2 | 300 cm lengths |
Pre-cut kits for this wall
Pre-cut kits that fit this project. Open a kit for photos, options and pricing.
01 / KITWainscoting 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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02 / KITWainscoting Panels Kit, 3 Upper & 3 Bottom Frames | Pre-Cut Paintable Wall Molding
From $75.00
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03 / KITPicture Frame Molding Set, Double Frame 1 to 4 Panels | Waterproof Wall Trim Kit
From $69.80
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04 / KITBox Molding Kit, Shadow Box 2 Upper, 1 Center & 2 Bottom Frames | Ready to Assemble
From $157.00
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05 / KITPeel and Stick Board and Batten Picture Frame Molding Set | Easy Installation
From $115.30
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06 / KITBoard and Batten Wall Kit, Shaker Grid 1 to 5 Sets | Self-Adhesive Wainscoting
From $69.80
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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.
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.
- Paint color dataset (screen approximations; LRV calculated)Recorded November 11, 2026
- DecoMoldings product catalogRecorded November 11, 2026