Job
ExampleMeasure each section along the face of the frame, corner to corner. Enter the angle between sections as the inside angle in the room: a straight run is 180°, a standard bay is 135°, a square corner is 90°.
Order sizes
| # | Blind | Measured | − Left | − Right | Order W | Order D |
|---|
Saved jobs
Blind types
Projection is how far the front of the blind sits out from the frame: headrail or cassette depth, or for verticals, the swing of an open louvre. This is what clashes in the corner. Example sizes are placeholders; replace them with your suppliers' figures.
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Allowances
How the corner deduction works
Each blind is cut back so its front corner stays behind the line that splits the corner angle in half. Two blinds meeting at a corner can then never touch, even with different projections.
At 135° that is projection × 0.414; at 90° it equals the projection; at 180° only the clearance is taken off.