6/8/2015 Thickness options. Hardwood decking boards at Wood and Beyond come in three thickness options: 19mm 21mm and 28mm. Which you choose will depend on a mix of elements such as the size of your budget the surface you’re laying your deck on and the look you’re hoping to achieve. 19mm thick hardwood decking boards
A 5/4”x6” deck board is rated for 12” OC and 16” OC and a 2”x6” plank can span that plus 24” OC. A 2”x6” plank will flex more when supported at 24” OC than the other two distances and a 5/”x6” will flex more at 16” OC than at 12” OC. The two most common deck board thicknesses are 5/4” and 2”.
10/6/2020 Deck Board Thickness: Why It Matters. To begin it’s important to note the difference between standard deck board thickness and the heftier alternative. Deck Board Thickness: Standard = 1” thick. Thicker deck boards such as TimberTech AZEK MAX boards are 1.5” thick.