To answer your question, no you can’t do that – for the easiest reason – because it won’t work and your guests will get wet. And for a hard reason, it will tear up your deck with wood expanding and warping due to pressure or wood rotting due to standing water.

How do you fill gaps between decking boards?

4) How to Fill Gaps in Decking

While you might be tempted to fill in gaps in your decking with wood filler or caulk, the natural movement of the boards can eventually cause the materials to break loose and make the gaps even worse. However, you can use rope to easily fill the gaps.

What do you put between deck boards?

During installation, make sure to keep your decking material in a cool, dry place where it will not be exposed to excess moisture and expand, which can affect the spacing between the boards. Use spacers, a sixteen penny nail, or a pencil to help ensure even spacing between all the boards.

Should there be gaps between decking boards?

The amount of space between deck boards should be anywhere from ¼” to 3/8” inch. You want plenty of space for water to flow between the boards and to allow small debris to fall to the ground. Deck board spacing greater than 3/8” of an inch can become problematic.

How do you fill large cracks in deck boards?

Quote from Youtube video: Or wider for help try the crack test if two quarters fit inside caulking fill the large cracks with an exterior paint a bowl sealant call scrape away the excess. And allow to dry rescue.

Should deck boards be butted together?

We recommend butting treated deck boards together because as the moisture dries from the wood, the boards will shrink and naturally form gaps to allow water drainage. (Depending on moisture content, cedar, cypress and especially hardwood decking may require deliberate spacing for consistent joint sizes.)

What to use to fill cracks in deck boards?

Once the wood is dry, fill any gouges, holes, and cracks deeper or wider than ¼ inch with a paintable acrylic caulk. Use a putty knife to scrape off the excess, then allow the caulk to set until it skins over, probably 30 minutes.

What is the best wood filler for decks?

Best Exterior Wood Filler for Decks

  • Best wood filler for outdoor use – Bondo All-Purpose Putty.
  • Best Stainable Wood Filler– Elmer’s E892.
  • Best exterior epoxy wood filler – Abatron Wood Epoxy 2 kit.
  • Best Wood Putty for Decks– Minwax 13617000.
  • Best wood filler for pressure treated deck– Pc Products- 163337.

Is there a deck stain that fills in cracks?

BEHR PREMIUM ADVANCED DECKOVER Coating resurfaces existing wooden decks by filling-in cracks and taming splinters, extending the life of your deck and living space so you can enjoy the outdoors.

How do you join two pieces of decking?

Quote from the video:
Quote from Youtube video: End. Now fix a sixty four millimeter decking screw into the second groove securing. The deck board to the joist beneath. Repeat this process at the opposite end.

What can I do if the boards on my deck are too close together?

Quote from the video:
Quote from Youtube video: You can use a hand tool in some situations. Called a backer board scoring.

Do deck boards shrink or expand?

Deck boards will shrink, and not only that, they will even expand. Fibers have the ability to hold moisture in them. So when the outside environment is humid, the fibers collect moisture and expand, leading the boards to expand. In the dryer seasons, they lose moisture and shrink as a result.

Do pressure treated deck boards shrink?

Even products that are sealed and treated are going to shrink. This most typically occurs across the width of boards, so builders should take into consideration the fact that their lumber will shrink over time. Additionally, as part of the drying stage of treated wood, the boards will crack, also referred to as checks.

How much space should be between 2×6 deck boards?

The Sweet Spot – Most people agree that 3/16” is a good gap between boards. Going more than a ¼” may get a little too wide. The width of a nail head is just about right. Treated Lumber – Usually treated lumber will have some shrinkage so you can butt the boards almost right against each other during installation.

How thick should deck boards be?

Common deck board thickness. The most commonly used thickness for deck construction is 1-1/4”. But you can also get boards 2” thick, while there are boards only ¾” thick. It depends on the material, how flexible it is, and its hardness rate.

What is the thickest deck board?


Decking Type Actual Thickness (inches) Suggested On Center Joist Spacing (inches)
Thermally-Modified 5/4 1” 16”
Pressure Treated Pine 5/4 1” 16”
Western Red Cedar 5/4 1” 16”
Composite 5/4 1” 12”

How thick is a plank deck?

NOTE: Standard boards are often called a 5/4 board when referring to traditional lumber, which means the actual thickness is typically somewhere between 1” and 1 ¼”. Thicker boards are often called a 2 x 6 when referring to traditional lumber, which means the actual thickness is somewhere between 1.2” and 1.5”.