Baluster Calculator

Quickly find out how many balusters you need for your project.

Use the Deckorators® baluster calculator to determine quickly how many balusters or spindles your railing requires.

Balusters are the vertical guards that support the handrail. They must be installed close enough that the space between them is less than 4 inches. Most city inspectors carry a 4-inch ball with them to test the spacing. Installed balusters should withstand 50 pounds of pressure exerted over a 1-sq.-ft area.

*All fields are required

Enter total length of railing (including posts)
ft. in.
Enter total number of posts
Select the size of posts (dimensions listed are actual sizes)
Select a baluster style

Total number of balusters needed
Deckorators white aluminum railing, white round balusters and white solar post caps