Which is cheaper per foot?

The Fiberon board is $24.61 for 20 ft, about $1.23 per foot. The Trex board is $39.00 for 12 ft, about $3.25 per foot. The Fiberon is far cheaper per foot as of November 5, 2026.

Trex backs its board with a 25-year limited residential fade and stain warranty. Fiberon's listing states no warranty, so the Trex is the safer long-term bet on paper.

Can I use the same hidden fasteners on both?

No. The Fiberon board takes Fiberon Phantom GT hidden fasteners. The Trex grooved board takes Trex hidden fasteners. Buy the clips that match the brand.

Which color hides dirt better?

The grey Rocky Harbor hides dust, pollen and footprints better than the dark Espresso. Espresso looks richer but shows light-colored dirt.

Is the Trex worth the extra money?

Yes if you want the 25-year fade and stain warranty and a grey that stays clean-looking. No if budget is the priority, since the Fiberon costs about a third as much per foot.

Do both work for a ground-level deck?

Both are outdoor composite boards for standard deck framing. Neither listing covers ground-contact or structural use, so follow each maker's installation guide.

Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards vs Composite Decking 1 in. x 5-1/2 in. x 12 ft. Rocky Harbor Grooved Edge Board

Buy the Fiberon Sanctuary if you want the lower cost per foot and a warm espresso tone. Buy the Trex Enhance Rocky Harbor if you want a proven 25-year fade and stain warranty and a grey that hides dirt. On November 5, 2026, the Fiberon board is $24.61 at Warehouse '71 and the Trex board is $39.00 at Chinook Lumber, but the Fiberon listing is a 20 ft board and the Trex is 12 ft, so compare price per linear foot before deciding.

Today the Fiberon Sanctuary 5/4 in. x 6 in. x 12 ft. Espresso Grooved Composite Deck Boards costs $14.39 less at its best price.

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