Last summer my neighbor and me each got a new rooftop deck built.

We’re on the 3rd floor of a condo building.

Yesterday we started staining the deck. We’re using a light-colored stain. This is what the can says (it’s a mouthful):

Benjamin Moore Arborcoat
Premium Exterior Stain
Classic Oil Finish
Deck & Siding
Semi-transparent

We’ve started off with the ballusters, rails and posts, using brushes. When we’re done with this we’ll do the floor.

We were hoping to use rollers
for the floor. But I’m wondering how will we be able to avoid the
stain from dripping between floor wood boards (decking) and giving it a
messy look? Is there a trick? Or should we simply avoid rollers and
just use a brush?

I’m including some photos below. In the first photo there’s already a first coat of stain (but the very top of the railing cap has not yet gotten any stain).