inspiration · Herringbone
F&B Ammonite Herringbone Wall Molding
F&B Ammonite Herringbone Wall Molding: wall elevation, color data (LRV 69), living room layout for 12, 15, 18 ft walls, cut list, calculator and pre-cut kits.
Project calculator
Overview
F&B Ammonite is a light gray with a warm (yellow) undertone and a calculated LRV of 69. Against white trim the contrast ratio is 1.28:1, which gives almost no contrast, so the molding reads through shadow alone (a tone-on-tone look); painted tone-on-tone, the herringbone pattern shows only through its shadow lines.
Herringbone 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 76.93 m of 2.5 cm molding, or 33 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 herringbone pattern
Chevrons are pairs of short pieces meeting at a point down the center of each panel. Keep the angle and the vertical spacing identical so the rows line up across frames.
Painting molding in F&B Ammonite
Grays sit in the middle of the contrast range: white trim reads clearly, while same-color trim gives a quiet, architectural look.
Wall elevation
Color data
| Color | Brand | Code | Hex | Calculated LRV | Undertone | Depth | Contrast vs white trim | Contrast vs black trim |
|---|---|---|---|---|---|---|---|---|
| F&B Ammonite | Farrow & Ball | #DDD8CF | 69 | warm (yellow) | light | 1.28:1 | 11.61:1 |
Trim color pairings
| Pairing | Trim color | Hex | Contrast | Effect |
|---|---|---|---|---|
| tone-on-tone | F&B Ammonite | #DDD8CF | 1:1 | Trim painted the same color as the wall |
| matching white | SW Greek Villa | #F0ECE2 | 1.2:1 | White with the closest undertone |
| contrast | Black | #1F1F1F | 11.61:1 | Dark trim for a graphic outline |
Living Room wall sizes: herringbone 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 | 61.83 m | 26 | 2 |
| 15 ft | 6 | 25.3 in | 50 / 21 in | 76.93 m | 33 | 2 |
| 18 ft | 7 | 26.3 in | 50 / 21 in | 92.02 m | 39 | 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.
Questions
How much molding do I need for a 15 ft living room wall with herringbone frames?
About 76.93 m (252 linear ft) including a chair rail and 10% waste, which is 33 sticks of 240 cm. That assumes 6 frames per row, 25.3 in wide, on an 8 ft ceiling.
Is F&B Ammonite warm or cool?
F&B Ammonite has a warm (yellow) undertone and reads as a light gray. Its calculated LRV is 69, so it reflects a lot of light and keeps molding shadows soft.
Should trim be the same color as F&B Ammonite walls?
Painting the molding the same color gives a modern, tone-on-tone finish where only shadows show the pattern. White trim adds almost no contrast, so the molding reads through shadow alone (a tone-on-tone look) (1.28:1), and black trim gives 11.61:1.
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.
- Paint color dataset (screen approximations; LRV calculated)Recorded November 11, 2026
- DecoMoldings product catalogRecorded November 11, 2026