Object Care
A rectangle that fits still needs a packing decision
Fictional print F-8 measures 30 cm wide, 20 cm high and 2 cm thick including its frame. Container C-8 has a usable interior of 34 by 24 by 6 cm in the matching orientation. The exercise assumes rectangular shapes with no internal obstructions. It calculates remaining space only and supplies no cushioning material, closure design or transport conditions.
01
Match the dimensions in a stated orientation
Compare the print’s width with the container’s first dimension, its height with the second and its thickness with the third. Write the orientation beside both records so another person does not accidentally compare width against depth. The supplied usable interior exceeds the print by 4 cm along each of the three axes. These are total differences between dimensions. They are not yet per-side gaps, and the calculation does not say how the object will be positioned. Keep external box measurements out of this comparison because they do not describe the available interior.
02
Calculate centred gaps as a separate assumption
If F-8 is centred within C-8 on every axis, each total difference of 4 cm becomes a 2 cm gap on either side. Label this result centred geometric clearance. If the print rests against one wall, the corresponding gaps would instead be zero on that side and 4 cm on the opposite side. The dimensions have not changed, but the distribution of space has. This distinction matters when recording an arrangement: a total allowance cannot be presented as an even cushion thickness unless the positioning and materials actually support that description.
03
List the checks the arithmetic cannot settle
The reusable record contains object identifier, full dimensions, container identifier, usable interior, orientation, obstructions, total differences, proposed position and unresolved observations. Here, cushioning, movement restraint, frame contact and closure clearance remain unspecified. A real arrangement would need those details assessed separately before use. Preserve the numerical comparison as a limited input to that decision. If a liner reduces the usable interior, record the reduced dimensions in a new version and calculate again rather than reusing the original 2 cm figure as though nothing had changed.