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

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

Best price now

$24.61at Warehouse '71Observed at 9:36 AM

67% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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

Fiberon Sanctuary is a capped composite deck board in the Espresso color, sold here in a 5/4 in. x 6 in. x 12 ft. grooved-edge plank. The grooved sides take Fiberon Phantom GT hidden fasteners, so the finished deck shows no screw heads. The core is 94% recycled material with a three-sided PermaTech cap that resists splintering, cracking and staining, and the board needs no painting or sealing. At $64.62 at The Deck Store as of November 5, 2026, it is the lowest of the two new prices listed.

Best forHomeowners replacing worn wood deckingDIY deck builds on a budgetHouseholds with kids, pets or bare feetDecks that need a fastener-free surface
Pros
  • Capped composite resists stains, fading and moisture
  • Grooved edges work with Phantom GT hidden fasteners
  • No painting, staining or sealing
  • 94% recycled content
  • Splinter-free surface for bare feet and pets
  • Espresso color mimics exotic hardwood
Cons
  • Hidden fasteners sold separately
  • Grooved boards are not for picture-frame borders
  • Composite gets hot in direct sun
  • Espresso shows dust and pollen

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

  • The Deck StoreNew

    In stock

    $86.20+ $499.00 shippingObserved at 9:36 AM
    Visit store
  • Warehouse '71New

    Availability unknown

    $24.61Observed at 9:36 AM
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  • Home DepotNew

    Availability unknown

    $59.88Observed at 9:36 AM
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  • Homestead Outdoor ProductsNew

    Availability unknown

    $75.09Observed at 9:36 AM
    Visit store

Also available at

  • LENCO SuppliesCheck price at LENCO Supplies

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

Lowest price we've seen: $24.61 on Nov 5 at Warehouse '71. Tracked across 4 stores since Nov 5.

What reviewers say

Owners of Fiberon Sanctuary generally report it installs quickly with hidden clips and holds its color and surface well over several seasons. Some note the boards get hot underfoot in full sun and that the Espresso tone shows dirt between cleanings.

Pros
  • Clean, fastener-free look
  • Low upkeep compared with wood
  • Holds up to weather and foot traffic
Cons
  • Hot surface in direct sunlight
  • Dirt and pollen show on dark color
  • Clip spacing needs care for a flat deck

From The Deck Store

  • PermaTech three-sided cap resists fading, staining, mold and moisture
  • Low-maintenance: no sanding, staining or sealing needed
  • Available in grooved edge for hidden fasteners or square edge for face-fastening
  • Multiple lengths help minimize waste
  • Bold, multi-tonal woodgrain patterns
  • Rustic grain pattern
Sizes
12 ft, 16 ft
Materials
Composite with Fiberon PermaTech three-sided cap
Fit
Board actual thickness 0.94 in., actual width 5.4 in.; joist span recommendation 12 in. on center
Care
Simple, occasional cleaning; no sanding, staining or sealing
Guarantee
40-year residential warranty
Shipping
Free shipping on orders over a minimum; small boxed items ship in 1-2 days, decking ships LTL freight with a homeowner needed on hand to unload

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

When decking performance and value is a top priority, Fiberon Sanctuary 5/4 in. x 6 in. x 20 ft. Espresso Grooved Composite Deck Boards are unmatched. Sanctuary decking, available in the Espresso finish, outperforms traditional treated wood options by miles. With their flat bottom and traditional lumber-like texture, these grooved composite boards measuring 5/4 in. x 6 in. x 20 ft. are the perfect choice for a cost-effective new deck or an upgrade to an existing deck. Utilizing in-stock hidden fasteners that connect seamlessly to the planks' grooved edges means you'll be able to install the boards quickly and with a level of stability that makes for a lasting and graceful finished deck or patio project.

FEATURES:

• Fast install with hidden Deck fasteners for a smooth, fastener-free surface

• Multi-tonal colors that resemble exotic hardwoods

• A High End look at an economical price

• Durable composite core with a 3 sided PermaTech cap

• No splintering, cracking or splitting for bare feet, children and pets

• Low maintenance with no Painting, Staining or Sealing required

• Easy to clean with water and soap

• Contains 96% recycled content

• Board Profile Dimensions: .92 in. x 5.25 in. x 20 ft., Flat Bottom

• Color: Espresso

• 40 Year Residential Warranty

Specifications

Material
Composite
Type
Decking
Subtype
Composite decking
Weight Capacity
4 lb
Installation Location
Outdoor
Installation Type
Clip system (with Fiberon phantom GT hidden fasteners)
Durability
Resists cracking

Questions and answers

Is Fiberon Sanctuary worth it over pressure-treated wood?
Yes for most decks. It costs more up front than treated pine but skips yearly staining and sealing, and it will not splinter, rot or split. The savings in maintenance usually close the gap over a decade.
What fasteners do these grooved boards need?
They take Fiberon Phantom GT hidden fasteners, which sit in the grooved edges and are sold separately. You also need regular screws or clips at the first and last board and at the rim joists.
Can I use this board for stairs and borders?
The grooved edge is made for field boards between joists. For stair treads, picture-frame borders and fascia, use the square-edge version of the same board so you can face-screw or plug it.
How does Sanctuary compare with Fiberon Good Life or Horizon?
Sanctuary is the value line with a three-sided cap. Good Life and Horizon add a fuller cap and longer warranties, so pick those if you want maximum stain and fade protection. Sanctuary is the budget pick.
What is the actual size of the board?
It measures 5.25 in. wide and about 0.93 in. thick, the standard 5/4 profile. Plan joist spacing at 16 in. on center, or 12 in. for diagonal layouts.
When is the price lowest?
Decking tends to discount in late fall and winter, outside the spring building season. The current $64.62 at The Deck Store as of November 5, 2026 is the lowest of the two new prices listed.
Where is the Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards cheapest?
At Warehouse '71, for $24.61, 67% under what the other stores charge, as of our latest check.
Where can I buy the Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards?
5 stores we checked sell it, including Home Depot, The Deck Store, Warehouse '71, Homestead Outdoor Products, LENCO Supplies.

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Buying guides that pick the Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards

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All Fiberon deals and products →
Safety Features
Fire-rated version available
Dimensions
0.92" D x 5 1/4" W
Length
20'
Width
5.25"
Height
1 in
Thickness
0.93"
Typical Users
Homeowners
Sustainable Certifications
Recycled content
Design Type
Decking Board
Finish
Prefinished
Edge Type
Grooved Edge
Shape
Plank
Tile Format
Plank
Included Components
Hidden deck fasteners (for a smooth, fastener-free finish)
Compatible With
Fiberon phantom GT hidden fasteners