Deck Stain / Sealer

Related terms

• Decking Board

  The walking-surface boards fastened across the joists — wood, composite, PVC, or aluminum. The most-visible and most-replaced deck compon…

• Deck Post

  A vertical member (typically 6x6) carrying the deck beam down to the footing, secured top and bottom with rated connectors.

• Decking Span

  The maximum joist spacing a given decking can bridge without sagging — varies by material and whether boards run straight or diagonal.

• Deck Joist

  The repetitive members spanning ledger to beam that the decking fastens to. Spacing (12–16 in.) depends on decking type and direction.

• Downspout

  The vertical pipe carrying gutter water down and away from the foundation. Extensions or buried drains move it far enough out to matter.

• Deck Footing

  The concrete base below a deck post, sized and dug below the frost line to carry the post load without heaving or settling.

• Drainage Plane

  The continuous surface (the WRB and its flashings) designed to carry any water that gets behind the cladding safely back out.

• Deck Fascia

  The trim board covering the outer rim joist for a finished edge, often matching or contrasting the decking.