Note: Title block size uses our default template. If your company template differs, adjust these values.
It picks the best ISO 5455 paper format (A4 to A0) and a standard drawing scale for a given part bounding box, so the geometry fits the sheet with sensible margins for CAD and engineering drawings.
Type the part dimensions as AxBxC in millimetres, choose the views to display and the orientation, then click Optimize. The planner returns the recommended ISO 5455 sheet size and scale and previews the technical drawing layout.
All ISO 5455 preferred scales: enlargement scales such as 50:1, 20:1, 10:1, 5:1, 2:1, full size 1:1 and reduction scales 1:2, 1:5, 1:10, 1:20, 1:50, 1:100 and beyond.
The planner uses ISO 5457 / ISO 216 sheet sizes (A4 = 297×210, A3 = 420×297, A2 = 594×420, A1 = 841×594, A0 = 1189×841 mm) together with the ISO 5455 preferred scale series.
Yes. Choose Portrait or Landscape from the orientation drop-down. The preview and the recommended sheet size update automatically so the part still fits within the printable area.
Yes. The planner is free, runs entirely in your browser and needs no installation or sign-up.
A technical drawing only communicates clearly when the part fits the sheet with a sensible scale, correct views, and a usable title block. That selection is usually done by trial and error — which wastes time and produces non-standard layouts. This planner automates it: you enter the part bounding box of the part and the planner returns the matching ISO 5455 sheet size and preferred scale, then previews the drawing frame so you can check the result before you create the drawing.
Sheet sizes follow ISO 216: A4 at 297×210 mm, A3 at 420×297 mm, A2 at 594×420 mm, A1 at 841×594 mm, and A0 at 1189×841 mm. The drawing frame inside the sheet is defined by DIN EN ISO 5457 frame offsets — a wider left margin for filing and a margin on the other edges. You can adjust these offsets to match your company template and the planner places the views within the frame, not the raw paper edges.
Scales are standardized to keep drawing numbers readable. The tool supports the full ISO 5455 series — full size 1:1, reduction scales 1:2, 1:5, 1:10, 1:20, 1:50 and beyond, and enlargement scales 2:1, 5:1, 10:1, 20:1 and 50:1. The optimizer picks the smallest sheet from your allowed page sizes that still fits the part with the largest preferred scale, so a small part does not end up pinned to an oversized sheet.
Choose between all three standard orthographic views (top, right, front) or only the ones your drawing needs, then set the title block dimensions. Because the frame and title block reduce the usable area, the optimizer always re-checks the fit after these values change — if no preferred scale fits, it tells you to adjust the dimensions or allow a larger sheet.