Photo: Kristine Larsen
Using a synthetic filament brush slightly wider than the deck's boards, apply the stain full-strength in the same order you scrubbed: top rail, balusters and posts, bottom rail, and then the decking.
Brush up drips and runs immediately.
For an even color, stir the stain frequently during application.
Tip: Finish all four sides of each baluster before moving on to the next one.