2×8 Composite Decking Sizes

Introduction to 2×8 Composite Decking

Composite decking has become a popular choice for home improvement projects due to its durability, low maintenance requirements, and aesthetic appeal. Among the various sizes available, the 2×8 composite decking plank stands out for its balance between cost-effectiveness and performance. This article delves into the specific dimensions of 2×8 composite decking, discussing how these sizes contribute to the overall strength and longevity of the deck, and providing examples of projects where this size is particularly advantageous.

Dimensions and Structural Integrity

The standard dimensions of a 2×8 composite decking plank are typically 1.5 inches in thickness and 7.25 inches in width. These dimensions offer a substantial surface area that supports heavy loads while maintaining ease of installation. The increased thickness compared to thinner planks provides better resistance against bending and warping under heavy use, contributing significantly to the deck’s longevity. For instance, the 2×8 size can easily handle the weight of outdoor furniture, BBQ grills, and even foot traffic without showing signs of wear and tear as quickly as thinner options might.

Advantages in Various Projects

The 2×8 composite decking plank is particularly advantageous in several types of projects. For large decks that need to support significant weight, such as those with built-in seating or extensive landscaping features, the 2×8 size ensures stability and safety. In regions with high humidity or frequent rainfall, where wood is prone to rotting, the composite material’s resistance to moisture makes it an ideal choice. Additionally, the consistent appearance and minimal upkeep required for composite materials make them suitable for commercial applications like boardwalks or public parks, where aesthetics and durability are paramount.

Installation Tips and Considerations

When installing 2×8 composite decking, proper spacing between boards is crucial to allow for expansion and contraction due to temperature changes. Typically, a gap of about 1/8 inch is recommended. Using hidden fasteners or screws designed specifically for composite materials helps maintain the clean look of the deck while ensuring secure attachment. It’s also important to choose a reputable manufacturer known for high-quality products to ensure the longevity and performance of your deck.

Reference Materials

For more detailed information on composite decking and its applications, you may refer to the following resources:
NationalDeck.com – Deck Sizing and Spacing Guidelines,
FamilyHandyman.com – How to Install Decking.