Overlay floors and revisions

Places other floors or revised sheets over a base page so you can line them up and check what changed.

Use overlays to compare drawing layers or revisions while retaining visual context around shared geometry such as the garage and courtyard.

Before you start

Availability: Business plan and above. Enabled business features, role permissions, connected providers and supported devices may add requirements.

Documented roles: Owner, Office. A role name alone does not override the permissions set by your business.

Where to find it: Takeoffs > Overlay floors.

Choose the correct sheets, verify their scale and align shared reference points. Check more than one point so translation, rotation or scale differences are visible.

Ground floor, first floor and roof excerpts, aligned using the shared courtyard boundary. All three checked layers participate in the cross-fade; these are different sheets, not three storeys or revisions.
Ground floor, first floor and roof excerpts, aligned using the shared courtyard boundary. All three checked layers participate in the cross-fade; these are different sheets, not three storeys or revisions. Select the image to view it at full size.

Step by step

  1. Open the base page, turn on Overlay and add the comparison floor or revised sheet.
  2. Calibrate both pages to the same scale, then align the active layer using shared plan points.
  3. Compare the layers and check changed walls, openings, fixtures or quantities before updating measurements.
  4. Reorder floors, set a tint and cross-fade between the checked layers to inspect the revision clearly.
  5. Right-click blank canvas for available Paste, Select all on page, Start tool (including Count / marker), Zoom to fit, Turn overlay on or Turn overlay off actions. On touch, long-press the canvas with Pan or Select active.

Worked example

The demonstration selects ground floor, first floor and roof, aligns the courtyard boundary and moves the actual overlay slider through both blends and back. Pause the video to compare the garage and courtyard across layers.

This is an illustrative scenario. Use your own approved scope, quantities, rates and business rules.

Ground floor, first floor and roof blend through the actual overlay slider. These are three drawing layers, not three storeys or a 3D model. Pause or scrub to inspect each transition.

Check the result

Inspect several shared reference points at each transition. Confirm sheet names and revision dates before deciding whether a visible difference is a design change or a different view.

Limits and troubleshooting

These are three drawing layers, not three habitable storeys or a 3D reconstruction. The demo does not prove automatic alignment or automated change detection; interpretation and alignment checks remain with the user.

Open the complete takeoff walkthrough with volume, formula, assembly and overlay examples

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