Worked layout
Vertical shiplap coverage
Example measurements
- Wall
- 120 × 96 in
- Actual board face
- 6 in
- Installed coverage
- 5½ in
- Starting edge
- Left
Layout result
- Orientation
- vertical
- Columns
- 22
- Final visible face
- 4 1/2 in
Compare on the same wall
Only the named layout setting changes. Wall measurements stay the same.
horizontal courses
5 1/2 in installed coverage · 18 pieces on Wall A
Try this variation →vertical courses
5 1/2 in installed coverage · 22 pieces on Wall A
Try this variation →Look at the side remainder first
The columns advance across the wall, so any partial finishing face appears at a side. Follow the last column down the drawing and imagine it beside your actual corner, casing, or exposed return. If a thin strip falls in a prominent position, compare a different starting arrangement before accepting it as the inevitable end of the pattern.
Installed coverage positions the visible columns. The physical board can extend beyond that visible face because its joining edge engages with the next piece. Keep both dimensions in the plan: a narrow visible strip still needs a suitable blank and a usable edge detail.
This orientation can be worth comparing when you want the repeated lines to run from the lower stop toward the ceiling. Check the real ends of those lines, though. A deep baseboard or crown changes where the boards finish and how much of the field remains visible.
Distinguish raw length from the full-height piece
Measure from the actual lower coverage boundary to the upper one at both sides of the wall. Record any difference rather than assuming the room’s nominal height applies everywhere. Existing trim may shorten the field; uneven boundaries can leave individual pieces needing local fitting.
Next compare that finished run with usable stock. End trimming and the selected cutting allowances consume some of the raw board. An eight-foot label therefore does not guarantee an eight-foot finished piece. Check the stock review before ordering the repeated full-height lengths.
If a length cannot fit, use longer stock or a seam arrangement explicitly permitted for the product and wall. Do not let a convenient short offcut determine where a visible joint appears. A change in stock can be simpler to evaluate than adding a joint to every column.
Compare rotation and starting position
Open the horizontal companion and read the two drawings side by side. In that plan the long run follows wall width and the remainder appears at the top. Here the long run follows height and the remainder moves to the side. Compare band counts, final faces, longest blanks, and stock conflicts together; rotation changes more than the direction of the lines.
For the vertical version, judge the first and last exposed strips from the main room view. A full starting face may work well beside a less visible corner. A more balanced pair of edge faces may be preferable when both boundaries are exposed. Any adjusted start still has to preserve the joining and attachment details required by the actual profile.
Fit columns around windows and finishes
Add the full window-casing boundary before reading the final material demand. A column may cross the opening only partly, leaving a notch and a strip of coverage beside it. Removing that entire column would leave some wall uncovered. Inspect both the window head and sill to see which regions each blank must supply.
Metrie’s linked instructions distinguish the plumb starting reference and supporting arrangement for its vertical installation. Use your product’s requirements to establish those details rather than rotating a horizontal installation method by assumption.
Label the notched blanks by column and opening, then check their lengths with kerf and end trim included. Before cutting the repeated pieces, fit a sample at the upper and lower stops. Keep fitted lengths associated with their wall positions if the boundaries are uneven.
Questions about this layout
Can I use an 8-foot board for an 8-foot finished run?
Only when its actual usable length accommodates the finished piece and all selected cutting allowances. Confirm that in the material review; a nominal length match is insufficient.
Where does the partial face appear?
At a side, because the boards repeat across the width in this vertical layout. Compare that finishing face with the actual corner or casing detail.
Will horizontal and vertical stock counts match?
They may differ. Rotation changes run lengths, partial edge pieces, and the way each opening intersects the boards. Compare the complete material schedules for your measured wall.
Sources and assumptions
- Metrie: Prefinished Matte ShiplapProduct-specific dimensions, coverage, starting-board alignment, opening cuts, and orientation guidance. Apply the instructions for the product you actually buy.
- TrimLayout Calculation MethodsDefinitions of clear gaps, measurement references, finished pieces, and material allowances used in these examples.
- NIST: SI Units — LengthUnit relationships for converting measured lengths; this source does not prescribe decorative proportions.