> For the complete documentation index, see [llms.txt](https://docs.paragontruss.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.paragontruss.com/materials/how-to/lumber-lists-and-lumber-sets.md).
# Create & Modify Lumber Lists
## Create a Lumber List
### Step 1: Click the `+` button to begin creating a new lumber list
### Step 2: Enter a name for your custom list
{% hint style="success" %}
Tip
This custom name will be displayed in the Paragon Design interface when editing material settings.
{% endhint %}
## Create a Lumber Set
### Step 1: Create the `+` button next to Lumber Sets
### Step 2: Choose 1 or more species of lumber
### Step 3: Choose 1 or more grades of lumber
{% hint style="info" %}
Note
The grade and treatment types available to you may be limited based on the species chosen.
{% endhint %}
### Step 4: Choose a Treatment Type
### Step 5: Enter desired Widths and Heights
{% hint style="info" %}
Note
The Lumber Preview column will populate with lumber that match your conditions. As you enter heights/widths this will change.
{% endhint %}
### Step 6: Enter Stock Lengths
Once you are satisfied with the lumber you may save this set.
## Create a Combo Lumber Set
When multiple Species or Grades are selected, the option to "ADD AS COMBO" becomes available for the respective properties. Use the same steps as defined in [Create a Lumber Set](#create-a-lumber-set), but after selecting multiple Species and/or Grades, select `ADD AS COMBO SPECIES` and `ADD as COMBO GRADE`, respectively.
## Duplicate Existing Lumber List
### Step 1: Choose the List you would like to copy
### Step 2: Click the `Duplicate` Button in the header
### Step 3: Edit the duplicated list
The list name will start with `Copy Of`and then the previous list name. For example, duplicating a Lumber List with the name of `Example List` will result in a new list called `Copy of Example List`
{% hint style="info" %}
Note
From the Edit Lumber Set screen you will have the option to rename the Set.
{% endhint %}
## Select a Default List
### From the home screen right click on a list and choose Make Default
---
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