What does grooved mean on this board?

Both long edges have a channel cut into them. Hidden fastener clips sit in the channel and screw to the joist, joining two boards without visible fasteners on the deck face.

Can I use it for the picture frame or stairs?

Grooved boards are made for field decking joined by clips. Edges and stair treads usually need a solid-edge board or face screws, so plan those runs separately.

Does composite decking need sealing?

No. Composite is capped or treated to resist moisture and does not need stain or sealant. Occasional cleaning with soap and water is the normal upkeep.

How far apart should the joists be?

Follow Duralife's installation guide for the exact spacing; composite is more flexible than wood, so spans are typically tighter than for solid lumber. Check the guide before framing.

Will it match a wood deck I already have?

The Garapa Gray finish mimics weathered tropical hardwood in tone. It will not match real wood grain exactly, and color can vary slightly between production runs.

Is it slippery when wet?

The embossed woodgrain surface gives some texture, but composite can be slick when wet, especially in shade or near water. Many installers avoid it on steep ramps.