File preparation guide
How to Prepare a Floor Plan for Reliable 3D Conversion
A clean source plan reduces avoidable assumptions before modeling begins. Use this checklist to preserve scale, retain the symbols that describe the building, and give the conversion workflow enough context to create a useful first model.
Start with the most trustworthy version of the plan
Ask the project owner, designer, surveyor, contractor, or property manager for the latest measured document. A vector PDF exported from the drawing system is preferable because lines and text remain sharp at different zoom levels. A high-resolution PNG or JPG is also useful when its proportions have not been distorted. Treat an estate-agent brochure, messaging-app screenshot, or hand sketch as preliminary unless a reliable dimension lets you calibrate it. Keep the original file untouched, create a working copy, and record where it came from and when it was issued.
Choose one authoritative drawing
Do not combine walls from several plan versions without resolving the differences first. Select one drawing as the geometry source and use other documents only as references. Confirm the floor, unit, revision, and orientation. If renovation markup appears over an existing-condition plan, state which lines represent current walls and which show proposed work. This prevents the model from blending two project states into a layout that has never existed.
Crop cleanly without changing proportion
Remove title blocks only when they do not contain scale, revision, or survey information. Crop unrelated floors and surrounding white space, rotate the page to a readable orientation, and preserve the original aspect ratio. Never stretch an image to fit a template. Avoid filters that thicken walls, erase fine window lines, or invent high-contrast edges. The goal is legibility, not a cosmetically perfect image.
Keep dimensions and identify a scale anchor
Retain overall dimensions, room dimensions, wall thicknesses, and opening widths whenever they are available. Choose at least one clearly labeled distance as the scale anchor and note its unit. Cross-check another dimension after calibration; if it does not agree, the source may be distorted or the drawing may contain inconsistent measurements. List missing critical dimensions, such as ceiling height or a narrow clearance, so they are reviewed instead of guessed.
Preserve architectural symbols and fixed services
Door swings, window breaks, columns, stairs, plumbing fixtures, kitchen equipment, shafts, and level changes all affect how a room can be used. Keep these marks visible and provide a legend when symbols are unusual. Separate movable furniture from fixed elements. If structural walls, electrical panels, plumbing stacks, or mechanical equipment are known, label them so a visual option does not imply that they can be relocated casually.
Attach a short modeling and review brief
Describe the purpose of the model, the rooms in scope, the decisions you want to test, and the audience for the review. List fixed requirements, preferred furniture sizes, accessibility needs, storage priorities, style direction, and any information that remains uncertain. A focused brief guides automated generation and gives the human reviewer an acceptance checklist. It also prevents decorative choices from being mistaken for measured project facts.
Ready to convert?
Your source is ready when the plan version is clear, the proportions are unchanged, at least one scale anchor is trustworthy, important symbols remain readable, and unknowns are documented. The next step is to generate the shell, verify key dimensions, and review circulation before investing time in finishes or presentation views.
Open the complete conversion workflow