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Best composite decking boards

Researched by Deal.ai's shopping agent across stores on November 5, 2026. Prices below are today's.

Start with Trex Select (Pebble Grey, grooved, 16 ft). Trex is the name most builders trust, the grooved edge hides fasteners, and it's capped so it shrugs off moisture and stains with just a hose-down. It's the safest all-round board for a family deck.

Who the others suit:

  • TimberTech Terrain+ (Natural White Oak) — a step up in looks if you want a lighter, more natural grain; capped and water-resistant.
  • Fiberon Sanctuary (Espresso, 12 ft) — a deep, dark, premium look for a statement deck; grooved for hidden clips.
  • Rocky Harbor grooved board — a budget-friendly capped board for a shed, dock or rental where cost matters more than a 25-year name.
  • Walmart no-name planks — only for small repairs or a planter box, not a full deck.

Check board length against your joist layout, and order 10% extra for cuts and waste.

The picks

  1. Trex
    Trex Select 1-in x 6-in x 16-ft Pebble Grey Grooved Composite Deck Board
    #1

    Trex Select 1-in x 6-in x 16-ft Pebble Grey Grooved Composite Deck Board

  • Type: Plank / Board
  • Outdoor: Yes
  • Finish: Grooved, Natural
  • With Water Protection: Yes
  • Thickness: 33 mm thick
$74.50at Home CentralObserved at 9:34 AMCompare 5 stores →
  • TimberTech
    TimberTech Composite Decking, Terrain+ Collection Natural White Oak
    #2

    TimberTech Composite Decking, Terrain+ Collection Natural White Oak

    • Type: Plank / Board
    • Outdoor: Yes
    • Finish: Natural
    • With Water Protection: Yes
    • Thickness: 24 mm thick
    $53.40at Advantage LumberVerifiedPrices and history →
  • Fiberon
    Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards
    #3

    Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards

    • Material: Composite
    • Type: Decking
    • Subtype: Composite decking
    • Weight Capacity: 4 lb
    • Installation Location: Outdoor
    • Installation Type: Clip system (with Fiberon phantom GT hidden fasteners)
    $24.61at Warehouse '71Observed at 9:36 AMCompare 4 stores →
  • C
    Composite Decking 1 in. x 5-1/2 in. x 12 ft. Rocky Harbor Grooved Edge Board
    #4

    Composite Decking 1 in. x 5-1/2 in. x 12 ft. Rocky Harbor Grooved Edge Board

    • Thickness: 1.00 in
    • Length: 144"
    • Width: 5.5"
    • Height: 0.94"
    • Product Weight: 23.39 LB
    • Material: COMPOSITE
    $39.00at Chinook LumberObserved at 9:34 AMPrices and history →
  • SDFGTstore
    SDFGTstore Waterproofed Composite Wood Decking Board Sun Resistant Splice Safe Flooring
    #5

    SDFGTstore Waterproofed Composite Wood Decking Board Sun Resistant Splice Safe Flooring

    • color: Brown
    • actual_color: Wood grain mahogany
    • size: 30 x 30 cm / 11.81 x 11.81 in
    • Type: Plank / Board
    • Outdoor: Yes
    • Installation Type: Click
    $26.99at WalmartVerifiedPrices and history →
  • Ciozy
    Wood-Plastic Composite Flooring - Waterproof Decking Boards for Indoor/Outdoor Clearance - Ciozy
    #6

    Wood-Plastic Composite Flooring - Waterproof Decking Boards for Indoor/Outdoor Clearance - Ciozy

    • color: Other
    • size: One Size
    • actual_color: A
    $18.07at WalmartVerifiedPrices and history →
  • C
    Composite Decking 1 in. x 6 in. x 20 ft. Coastline Square Edge Board
    #7

    Composite Decking 1 in. x 6 in. x 20 ft. Coastline Square Edge Board

    $39.98at The Home DepotObserved at 9:01 AMPrices and history →
  • Fiberon
    Fiberon ArmorGuard 15/16 in. x 5-1/4 in. x 16 ft. Forest Brown Grooved Edge Capped Composite Decking Board
    #8

    Fiberon ArmorGuard 15/16 in. x 5-1/4 in. x 16 ft. Forest Brown Grooved Edge Capped Composite Decking Board

    $34.54at ArborVerifiedPrices and history →
  • Fiberon
    Fiberon Concordia Symmetry 3/4in x 11 1/4 in. x 12 ft. Capped Composite Fascia Decking Board
    #9

    Fiberon Concordia Symmetry 3/4in x 11 1/4 in. x 12 ft. Capped Composite Fascia Decking Board

    $93.35at ArborVerifiedPrices and history →
  • TimberTech
    TimberTech Legacy 1-in x 6-in Composite Deck Board
    #10

    TimberTech Legacy 1-in x 6-in Composite Deck Board

    $72.72at ArborVerifiedPrices and history →
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