Ideas Library · Exterior
Panel Setting-Out: Deciding Where the Cut Piece Lands
Every clad elevation has a last piece that is not a full panel, and setting out decides where it goes. Start from a datum you have chosen — an opening, a corner, the base — so the cut lands behind a downpipe, under the eaves or at the plinth, instead of in the middle of the view.
Where this idea works
Where this idea works
Contexts this direction tends to suit — and, honestly, where it may not.
- Panel, board and slip cladding where the setting-out is not yet fixed
- Elevations with a strong opening pattern that the panel grid could relate to
- Walls where several elevations have to agree with one another
- Projects where elevation drawings can be produced before anything is ordered
Where it may not fit
Where it may not fit
- Elevations already set out and part-built, where the datum is fixed
- Situations where the panel size cannot be varied and the wall length cannot be adjusted
- Walls whose dimensions are not yet reliable enough to set out against — worth confirming on site
Planning
Planning considerations
- Setting out is more demanding than it looks, because the eye reads coursing and any drift shows immediately
- Choose the datum deliberately: the opening that matters, the corner that is seen, or the base
- Cut edges may need sealing or colour matching, so where they land decides how much of that work is visible
- Setting out is settled before panels are ordered, since the quantity follows from it
Layout
Layout considerations
- Full panels at the corners and around the main openings are usually worth more than full panels at the ends of a run
- A cut piece behind a downpipe, at the plinth or under the eaves is effectively invisible
- Where two elevations meet, only one of them can lead, so decide which
- Sometimes a wall dimension can be adjusted slightly to make the grid work, which is often easier than accepting a bad cut
Materials & finishes
Materials and finishes to discuss
Named generically as starting points to discuss with professionals — not specifications, and not priced.
- A cut edge is not the factory edge, and how it is sealed decides how it weathers
- Narrow cut pieces can be difficult to fix properly, which is a question for the system's documentation
- Panels near the base and at corners take the most wear, so a cut piece there is doubly unwelcome
Maintenance & durability
Maintenance and durability questions
- Cut pieces are the hardest to match when something needs replacing later
- Recording the setting-out makes a later repair or alteration far easier to align
Professional review
What to ask a qualified professional
Bring these questions to a designer, contractor or the relevant qualified professional or authority.
- What datum would you set this elevation out from, and why?
- Where would the cut pieces fall under that setting-out, and how visible would they be?
- How should cut edges be sealed or finished in this material?
- Is there a minimum piece width this system will accept?
- Can the wall dimensions be adjusted slightly to improve the grid before anything is ordered?
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