Installation plan · Picture Frame
How to Install Picture Frame Wall Molding on Inside and Outside Corners
Plan a picture frame installation with a dated workflow, material checklist, and links to related catalog guides.
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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. Clean outlines that suit modern and transitional rooms.
Why inside and outside corners need a plan
Single rectangles of 2.5 cm molding, evenly spaced. The most adaptable layout: it works on short and long walls and in any room. Frame corners are 45 degree miters; pre-cut kits arrive mitered.
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.
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 |
Steps: inside and outside corners
order: 1; text: Frame corners are 45 degree miters; pre-cut kits arrive mitered.; items: Miter box · Fine-tooth saw · Caulk · Painter's tape
order: 2; text: For a chair rail on an inside corner, cut both ends at 45 degrees and press them tight before the adhesive sets.; items: Miter box · Fine-tooth saw · Caulk · Painter's tape
order: 3; text: On outside corners, dry-fit both rail pieces first; caulk fills small gaps from walls that are not square.; items: Miter box · Fine-tooth saw · Caulk · Painter's tape
order: 4; text: Keep frames at least 3 to 4 in away from a corner so the margin looks deliberate.; items: Miter box · Fine-tooth saw · Caulk · Painter's tape
Pre-cut kits for this wall
Pre-cut kits that fit this project. Open a kit for photos, options and pricing.
01 / KITPicture Frame Wall Molding Kit, 2 Upper & 2 Bottom Frames | Easy Installation
From $75.00
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02 / KITFrench Accent Wall Trim Molding Kit, Picture Frame Paneling | Easy Installation
From $232.74
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03 / KITChair Rail Wall Molding Kit, 3 Upper & 3 Bottom Picture Frames | Easy Installation
From $165.00
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04 / KITFrench Picture Frame Wainscoting Wall Molding Kit | Self-Adhesive Easy Installation
From $189.70
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05 / KITQuick Peel and Stick Ready to Assemble Wall Molding Package, 3 Vertical Frames | Easy Installation
From $73.00
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06 / KITFrench Step Corner Picture Frame Wall Molding Kit | Pre-Cut Peel and Stick Wall Molding
From $205.56
View kitQuestions
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.
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Sources & dates
This is a planning workflow, not a substitute for the selected product manufacturer's installation, safety, fastening, or cure instructions.
- Paint color dataset (screen approximations; LRV calculated)Recorded November 11, 2026
- DecoMoldings product catalogRecorded November 11, 2026