When working on drawings in ZWCAD, have you ever needed to know how many blocks are used in a drawing? This situation is common when preparing quantity takeoffs, checking drawing consistency, or reviewing a file before making changes.
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In drawings with a large number of repeated blocks, counting them manually is time-consuming and error-prone. In these cases, using built-in tools to quickly and accurately count blocks can greatly improve efficiency and reduce mistakes. In this article, we will introduce several methods for counting blocks in ZWCAD.
This method is ideal for users who prefer navigating through menus rather than typing commands. It provides a straightforward way to count blocks using the familiar Express Tools interface, making it easy to perform the operation even if you are not comfortable with using commands.
1. Click Express Tools > Tools > Number of Blocks

2. Select the target layer

3. Select the block to be counted

4. Expand the command line to view the block count result

The BLOCKSUM command is ideal for users who prefer command-line operations and want to obtain precise block counts for a specific layer. It is particularly effective when you need accurate, layer-focused statistics in drawings with many blocks spread across multiple layers.
1. Type BLOCKSUM in the command line

2. Select the target layer

3. Select the block to be counted

4. Expand the command line to view the block count result

The BCOUNT command is a fast and convenient command for counting selected blocks directly. After typing BCOUNT command, press Enter immediately before selecting the blocks to ensure the command executes correctly.
1. Type BCOUNT in the command line

2. After entering the command, press ENTER first. Then select the object. Expand the command line to view the count result.

Using the Properties panel with Quick Select is best for users who prefer a graphical interface and want a visual overview of the blocks they are counting. This method is especially helpful when you want to apply filters, verify selections, or see counts in real time without relying on the command line.
1. Press Ctrl + 1 to open the Properties panel, click Quick Select, choose the block(s) to count, and confirm by clicking OK.

2. View the count result in the Properties panel

To use the Count Blocks feature in ZWCAD more efficiently and accurately, consider the following recommendations:
1. Clarify the counting target first
Before performing the count, confirm which layers and block types need to be included. Clearly defining the target helps avoid missing key blocks or counting duplicates, and also assists in planning subsequent edits or modifications.
2. Use layer management
Place the blocks to be counted on organized and clearly named layers, and lock or hide unrelated layers. This allows you to quickly filter the blocks for counting while minimizing the risk of selecting unintended objects, improving overall efficiency.
3. Backup complex or large drawings beforehand
For drawings with a large number of blocks or complex layouts, it is advisable to save a copy or create a temporary backup before counting. This ensures that the original data remains safe in case of mistakes during selection or counting.
4. Combine with filtering tools
When precise counting of specific blocks is required, you can use Quick Select or the Filter command to refine your selection based on layer, block name, or other properties. This not only increases counting efficiency but also reduces the chance of missing or miscounting objects.
The block count may differ from expectations for several reasons. Some blocks may be located on locked or hidden layers, certain block types may not be included in the selection, or the drawing may contain duplicate or nested blocks. Make sure the target layers are visible and unlocked, and verify that the correct block type is selected before counting.
Yes, but the available options depend on the method used. Express Tools and BLOCKSUM typically require selecting one layer at a time, while BCOUNT and the Properties panel allow you to select blocks across multiple layers for counting.
In drawings with a large number of blocks, performance may slow down during selection and counting. To improve efficiency, it is recommended to hide unrelated layers, use filtering tools such as Quick Select, and limit the selection to only the necessary blocks.
Some counting methods only recognize top-level blocks and do not automatically include nested blocks. If nested blocks need to be counted, you may need to select them manually or explode the parent block before counting.
By using the built-in block counting tools in ZWCAD, you can quickly and accurately determine the number of blocks in your drawings, whether on a single layer or across multiple layers. Choosing the appropriate method based on your workflow—menu-based, command-line, or graphical interface—can help improve efficiency, reduce errors, and make your drawing management more effective.