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12x12 pressure treated timbers loaded for delivery to elevated home and marine construction projects.

10 in. x 10 in.
Treated Lumber

Looking for premium 10x10 pressure treated lumber for structural, marine, or heavy‑duty construction? Gulf Coast Lumber supplies #2 Grade Southern Yellow Pine 10 inch x 10 inch treated lumber posts engineered for exceptional strength, durability, and long‑term performance. Our rough‑cut 10"x10" pressure treated posts are heavily stocked, competitively priced, and available for fast pickup or quick delivery.

Whether your project requires untreated 10x10 SYP timbers or .60 CCA pressure‑treated posts, we provide reliable supply and rapid turnaround to keep your job on schedule.

Marine‑Grade 10x10 Timbers – CCA Treatment Options
For waterfront, coastal, and marine construction, we offer high‑performance CCA‑treated 10x10 lumber designed to withstand harsh environments. With a large inventory of untreated Southern Yellow Pine timbers, we can quickly treat your order to:
  • .80 CCA – Ideal for freshwater, foundation, and ground‑contact applications.
  • 2.5 CCA – Built for brackish water, saltwater, and demanding marine environments.
When your project demands strength, stability, and long term protection, our Southern Yellow Pine timbers deliver.
Request a Quote Today or call us at 281-670-8631 to get your project moving!

Product details

About This Product

Every piece of 10x10 treated timber is produced and graded to meet recognized standards for strength, durability, and structural performance, making it a dependable choice for demanding construction applications. With its solid dimensions and increased mass, 10"x10" treated lumber posts provide enhanced load-bearing capacity and long-term stability.

Applications for 10x10 Pressure Treated Timbers
Our pressure‑treated 10x10 posts are trusted across the Gulf Coast for:

  • Elevated beach homes
  • Bridges and boardwalks 
  • Heavy duty docks and piers
  • Marine fender systems
  • Decks, bulkheads, and shoreline structures

10 in. x 10 in. pressure treated posts are especially well-suited for outdoor structures, landscaping, marine applications, and foundational support systems where strength and durability are essential.

Available in a variety of lengths and treatment options, 10x10 timbers can be tailored to meet specific project requirements. Our mills handle custom orders, producing 10x10 timbers up to 50 feet long to meet exact engineering and structural requirements. 

Highlights

  • Made from Southern Yellow Pine
  • Available either treated CCA (Chromated Copper Arsenate) or untreated depending on application.
  • #2 grade rough sawn, available in #1 or appearance grade by special order.
  • Square Timbers
  • S4S (Surfaced on 4 sides) by special order.

 Specifications

Details
Material Southern Yellow Pine
Lumber Grade #2
Treatment methods .60 CCA, .80 CCA, 2.5 CCA                                                                                                                              
Dimensions
Product Height 10 inch
Product Width 10 inch
Product Length 8', 10', 12', 14', 16', 18', 20', 22', 24', 26' 28', 30', 32', 34', 36', 38', 40', 42', 44', 46', 48', 50'