Deck spacing is pretty important for getting the most of deck life from you wood.
You’ll find that 1/4-inch is usually adequate for drainage and gunk resistance, though composite deck boards need a little more since they expand and contract with changes in temperature.
You can certainly reinstall your boards with 1/2-inch spacing, but it won’t look quite as nice as it should.
Also, since you’re rebuilding, consider doubling up joists in places where deck board joints will occur.
Leaving 1/2-inch of space between each new joist and its neighbour allows you to space the ends of deck boards for ventilation.
Eliminating end-to-end board contact extends deck life more than any other design feature.
Looking to learn how to work with wood and don't know where to start? My DIYUniversity Course on woodworking for beginners is the best place online to learn a new skill and develop good working habits that will save you time and energy down the line.
Welding isn't just for the pros, you can learn along with Steve Maxwell everything you need for home workshop welding.
