Check sheets allow you to easily verify that all automatically counted symbols are correct, and are essential to review before a project can be considered to be complete.

Learn more about check sheets.

Best practice workflow

A best practice workflow for reviewing check sheets looks like this:

  1. On your computer, open the check sheet

  2. Visually scan the check sheet while scrolling down with your mouse

  3. Go back into the app and correct any issues

  4. Save and re-process the project

  5. Repeat steps 1–4 until you have verified everything is correct

In the above example, by quickly scanning the check sheet, you can verify that all the “Type B1” and “Type B” symbols are correct.

However, you can see that there is an “LCM” symbol counted under the “Type BE” heading. This needs to be corrected in the app.

Common issues

Issues within the check sheets fall into 3 common areas:

  1. Selections that aren’t clean

  2. Selections made under the wrong symbol description

  3. False positives

These issues should be addressed in order.

Selections that aren’t clean

Making clean selections is a key part of using Countfire correctly.

So long as you review selections as you make them in-app, and edit those selections to ensure they’re clean, bad selections wont make it through to your check sheets.

Learn more about making clean selections.

Learn more about reviewing selections as you make them.

Selections under the wrong symbol description

These are selections that have accidentally been made in-app under the wrong symbol description.

For example, if you’re selecting “Type BE” symbols in-app, and then start selecting “LCM” symbols, but forget to click on the “LCM” symbol description, any “LCM” symbols you select will be saved under the wrong symbol description.

Correcting this is easy:

  1. In-app, open any drawing within the discipline containing the selection that needs to be moved

  2. Click on the symbol description heading that contains the selection to be moved

  3. Click "Edit" (Shortcut = E) on any selection in the list and use the up / down arrow keys to cycle through each selection until the selection needing to be moved is shown in the editor

  4. Move that selection to the correct symbol description

  5. Click "Save edit" to save this change

  6. Save and re-process the takeoff

Learn more about moving selections.

False positives

Because Countfire’s matching algorithm is necessarily "fuzzy", to allow it to automatically count lots of similar symbols, in certain scenarios you can run into false positives.

This usually happens because you haven’t yet made a selection of the symbol in question, and because that symbol is close enough (from the software’s perspective) to a different symbol that you’ve already selected, the matching algorithm gives a false positive.

In the example above, you can see there are "Type B", "Type C" and "Type D" symbols all being counted under the "Type B" heading.

The "Type C" and "Type D" symbols are false positives.

Correcting this is easy:

1) On the check sheet, hover your mouse over the false positive symbol

2) Note the drawing name and symbol position from the tool tip that appears

3) Load the relevant drawing in-app

4) Hide the background

5) Hide any already matched symbols

6) Use the positional coordinates to locate the false positive on the drawing

7) Make an additional selection, under the correct symbol description, to correct the false positive

8) Save and re-process the takeoff

False positive or selection under the wrong symbol description?

Once you become more familiar with Countfire, you’ll develop a sense of which issue you have just by visually looking at the symbols within the check sheets.

However, as a guide:

  • If the symbol is very different from others in the same symbol description, you likely have a selection under the wrong symbol description.

  • If the symbol is very similar to others in the same symbol description, you likely have a false positive.

Additionally, while you’re becoming familiar with how Countfire’s matching algorithm works, because selections under the wrong symbol description are faster to locate and correct, it can be helpful to assume that’s what you have before checking for false positives.

Learn more

How to: Use Countfire’s Excel spreadsheet.

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