by 
The Curious Bag
-
<h4 class="dechead">On One Hand: The 4-Inch Sphere Rule
According to Genesis Millwork, most local building codes require that porch balusters be spaced so that a sphere 4 inches in diameter can not pass through. A general rule given by Vintage Woodworks is that baluster spacing should be approximately 1-1/2 times the width of the baluster.
On the Other: Larger Balusters May Require Tighter Spacing
Balusters over 3 inches wide are usually spaced closer together than more narrow ones. According to Vintage Woodworks, this is necessary to keep the space between their turned sections within the 4- inch sphere rule. For instance, 5-1/2 inch balusters might be properly spaced with 2-1/2 inches between their unturned faces.
Bottom Line
Make sure that the distance between balusters is equal and complies with the 4-inch sphere rule. According to Vintage Woodworks, the ideal spacing for porch balusters, depending on the width of the baluster, is between 2-1/2 and 3-3/4 inches.
Source:
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC