7 Tips To Set and Nail Deck Boards Perfectly

Deck Board Spacing with Chalk

Measure an equal distance from each end of the deck, allowing for an overhang (if desired), and snap a chalk line as a guide for the first row of decking. Align the first row with the chalk line and nail or screw the boards to the joists.

Then, use spacers at each joist to keep the gap between boards consistent and to keep the boards running straight. Sixteen-penny nails are about the right size for spacing between deck boards. But sight down your boards occasionally as well. You can easily spot when a board is off.