Check dimensions

The skill and its purpose

A dimensional check compares the intended physical output with the authoring document and selected system. Width and height without units or scale are ambiguous. Rotation can change how a panel fits, and an aspect-ratio mismatch can reveal the wrong template or an accidental stretch. The arithmetic establishes geometry only; physical tolerance and application suitability still need the responsible provider’s confirmation.

Work through the decision

Record document dimensions, output scale and intended finished dimensions together. Convert to one common unit before comparison. Check orientation and proportions on both axes, including each site variant. Keep observed measurement, requested size and provider-confirmed specification in separate fields. If the values disagree, investigate the cause before resizing the artwork or adding an unexplained allowance.

Practical exercise — fictional

A fictional drawing is 120 × 80 mm at 1:10 scale. Calculate its intended output and compare it with a required 1,200 × 900 mm graphic. Explain why matching the width does not resolve the different height. Write the question needed to confirm the correct template instead of stretching the drawing to fit.

Take it to the next job

• Keep units and output scale explicit.
• Compare width and height independently.
• Check orientation and aspect ratio.
• Resolve discrepancies before changing artwork.