Basic Deck Screw Math The number of screws needed for a deck depends on the square footage of the deck and a few other factors. You'll also have to know the joist spacing since the screws go through the deck boards into the joists. The width of the deck boards also matters, as you'...
On their site, you can choose the width of decking that you want, and it will calculate the linear footage for you. 2 Collect your measurements. Use the online calculator as a guide to collect necessary measurements. The company or agency that created the online calculator generally will ...