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Decking

Decking 101: The Low-Down on Composite Deck Boards

September 27 2019
composite composite decking
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Risers, fascia, grooves, and variegation… what does it all mean? When we think of decking, we usually consider the whole instead of the individual parts. Yet familiarizing yourself with those parts can give you more insight into designing your perfect outdoor space.

In this post, we’ll review some common decking lingo, so you can deck smarter.

Anatomy of Our Composite Deck Boards

At TimberTech, we offer two different types of composite deck boards with features that influence installation (and thus their final look):

Grooved Boards

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Boards with capped grooves along both sides that are secured with hidden fastening under the surface.

Square-Shouldered Boards

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Solid (more on that below) boards that utilize top-down fasteners that are typically color-matched screws and plugs.

Composite Deck Boards’ Profiles

These deck boards also have unique profiles — i.e., they’re constructed differently:

Full Profile

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Solid, sturdy boards with a flat bottom similar to traditional lumber for strength and a more solid feel underfoot.

Scalloped Profile

Composite Decking Boards - Scalloped Profile.jpg

Boards with a special scalloped bottom that reduces weight without sacrificing durability or strength.

The Decking Surface

What’s underneath is just as important as what’s on the surface of each one of our composite deck boards. Here are two crucial components of what makes every TimberTech board so unique (and beautiful):

Capping

Capped Composite Decking Boards.jpg

A strong, protective layer on all TimberTech boards that provide unrivaled protection against scratches, stains, moisture, and mold.

Variegation

Composite Decking - Variegation.jpg

The highlight and lowlight coloring in composite deck boards that resemble real wood — our TimberTech PRO line features some of our most dramatic variegation.

Bringing it all Home

Of course, it takes a lot of composite deck boards to make an actual deck. The final, show-stopping result, however, has a few more components to consider:

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TOP & BOTTOM RAILING

TOP RAIL
The uppermost piece of rail that connects the top end of the infill. 

BOTTOM RAIL
The piece that runs along the rail at the bottom, beneath the infill. 

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RISER

The boards that are applied behind each step. 

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FASCIA

The boards that run around the perimeter of the deck. 

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INFILL

Fits snuggly between the top and bottom rail to fill the inside area. 

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1

2

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RAIL
RISER
FASCIA
INFILL

Now that you’re practically a decking pro, you can confidently explore and choose from our distinct decking lines to find the one that best fits your style and space.