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How it works
The footprint plus four user-chosen working gaps is compared with the available rectangle. The initial 0.6 m gaps are editable planning allowances, not building or supplier requirements. Opening screening tries rectangular face orientations with 0.05 m total extra clearance on each opening dimension. Diagonal movement, item weight, handling space, corners and the full route are not assessed. Confirm the actual delivery method with the supplier.
Worked example
Illustration: a 3 m wide building with 0.6 m working space on each side needs 4.2 m width. A 4 m space fits the footprint but falls short of the selected gaps. Missing overhead clearance produces an unknown opening result.