inspiration · Nested
SW Iron Ore Dining Room Nested Wall Molding
SW Iron Ore Dining Room Nested Wall Molding: wall elevation, color data (LRV 5.6), dining room layout for 10, 12, 14 ft walls, cut list, calculator and pre-cu
Project calculator
Overview
SW Iron Ore is a dark gray with a neutral undertone and a calculated LRV of 5.6. Against white trim the contrast ratio is 8.92:1, which gives strong, graphic contrast; painted tone-on-tone, the nested pattern shows only through its shadow lines.
Nested layout on a 12 ft dining room wall
Molding over the full wall height, upper and lower rows divided by a chair rail. On a 12 ft wall with an 8 ft ceiling this gives 4 frames per row, each 31 in wide, with 50 in upper and 21 in lower frames. The layout uses about 56.33 m of 2.5 cm molding, or 24 sticks of 240 cm, including 10% waste. Check that the chair rail clears chair backs, usually 32 to 36 in.
Building the nested pattern
Fix the outer frames first, then set each inner frame 4 in inside with spacer blocks so the reveal is identical on all four sides. Both frames use the same 2.5 cm profile.
Painting molding in SW Iron Ore
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 |
|---|---|---|---|---|---|---|---|---|
| SW Iron Ore | Sherwin-Williams | #434341 | 5.6 | neutral | dark | 8.92:1 | 1.66:1 |
Trim color pairings
| Pairing | Trim color | Hex | Contrast | Effect |
|---|---|---|---|---|
| tone-on-tone | SW Iron Ore | #434341 | 1:1 | Trim painted the same color as the wall |
| matching white | F&B All White | #FBF8F4 | 9.37:1 | White with the closest undertone |
| contrast | White | #F4F3EE | 8.92:1 | Light trim for crisp contrast |
Dining Room wall sizes: nested 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) |
|---|---|---|---|---|---|---|
| 10 ft | 4 | 25 in | 50 / 21 in | 50.29 m | 21 | 2 |
| 12 ft | 4 | 31 in | 50 / 21 in | 56.33 m | 24 | 2 |
| 14 ft | 5 | 28.8 in | 50 / 21 in | 67.61 m | 29 | 2 |
Cut list for a 12 ft wall
| Piece | Quantity | Length |
|---|---|---|
| Frame top and bottom (lower row) | 8 | 31 in |
| Frame sides (lower row) | 8 | 21 in |
| Frame sides (upper row) | 8 | 50 in |
| Frame top and bottom (upper row) | 8 | 31 in |
| Inner frame pieces | 32 | 23 in / 13 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 / KITNested Frame Pre-Cut Wall Molding Kit for Dining Room, 3 Upper & 3 Bottom Nested Frames | Easy Installation
From $295.00
View kitQuestions
How much molding do I need for a 12 ft dining room wall with nested frames?
About 56.33 m (185 linear ft) including a chair rail and 10% waste, which is 24 sticks of 240 cm. That assumes 4 frames per row, 31 in wide, on an 8 ft ceiling.
Is SW Iron Ore warm or cool?
SW Iron Ore has a neutral undertone and reads as a dark gray. Its calculated LRV is 5.6, so it absorbs light, so tone-on-tone molding reads as deep relief.
Should trim be the same color as SW Iron Ore walls?
Painting the molding the same color gives a modern, tone-on-tone finish where only shadows show the pattern. White trim adds strong, graphic contrast (8.92:1), and black trim gives 1.66:1.
How high should the chair rail be in a dining 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. Check that the chair rail clears chair backs, usually 32 to 36 in.
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