For building in the harsh marine environment, SplashWood® and TideTuff® brand products are the brands of choice.

Ever since man took to the sea, he has trusted wood as his primary building material. Now, centuries later, wood is still used in a wide variety of coastal building applications. From boardwalks and piers to marinas, docks, sea walls and more, pressure treated wood is used in many applications that require a product known for its proven longevity.

While deck boards and railing systems will be built with YellaWood® brand products, the substructure for building in saltwater or brackish water will require a hardy product that is as tough as the guys that sail the seven seas. You need SplashWood® for saltwater splash applications and TideTuff® for saltwater immersion applications.

For applications such as joists, beams and bracing above the waterline in a dock, pier or walkway subject to saltwater splash, turn to SplashWood® brand products (.60).

For bracing below the waterline and pilings in a dock, pier or walkway in saltwater immersion applications, turn to TideTuff® brand products (2.50).

The Preservative

SplashWood® brand and TideTuff® brand products are treated with Chromated Copper Arsenate (CCA). Great Southern Wood's treatment with CCA is restricted to products intended only for use in federally approved applications of CCA.

Approved Uses for CCA Treated Wood
  • Marine Construction (Pilings and Sawn Cross Arms)
  • Livestock Fencing
  • Agricultural Timbers and Poles
  • Utility Poles
  • Foundation Piling
  • Highway Uses
  • Permanent Wood Foundations

For a complete listing of approved uses for CCA treated wood, visit:

Note: Use stainless steel fasteners and hardware for saltwater or brackish water construction.

(including CCA, ACA, and ACZA)


This wood has been preserved by pressure treatment with an EPA-registered pesticide containing inorganic arsenic to protect it from insect attack and decay. Wood treated with inorganic arsenic should be used only where such protection is important. Inorganic arsenic penetrates deeply into and remains in the pressure treated wood for a long time. However, some chemical may migrate from treated wood into surrounding soil over time and may also be dislodged from the wood surface upon contact with skin. Exposure to inorganic arsenic may present certain hazards. Therefore, the following precautions should be taken both when handling the treated wood and in determining where to use or dispose of the treated wood.


All sawdust and construction debris should be cleaned up and disposed of after construction. Do not use treated wood under circumstances in which the preservative may become a component of food or animal feed. Examples of such sites would be use of mulch from recycled arsenic-treated wood, cutting boards, counter tops, animal bedding, and structures or containers for storing animal feed or human food. Only treated wood that is visibly clean and free of surface residue should be used for patios, decks and walkways. Do not use treated wood for construction of those portions of beehives which may come into contact with honey. Treated wood should not be used where it may come into direct or indirect contact with drinking water, except for uses involving incidental contact such as docks and bridges.

Dispose of treated wood by ordinary trash collection. Treated wood should not be burned in open fires or in stoves, fireplaces, or residential boilers because toxic chemicals may be produced as part of the smoke and ashes. Treated wood from commercial or industrial use (e.g., construction sites) may be burned only in commercial or industrial incinerators or boilers in accordance with State and Federal regulations. Avoid frequent or prolonged inhalation of sawdust from treated wood. When sawing, sanding and machining treated wood, wear a dust mask. Whenever possible, these operations should be performed outdoors to avoid indoor accumulations or airborne sawdust from treated wood. When power-sawing and machining, wear goggles to protect eyes from flying particles. Wear gloves when working with the wood. After working with the wood, and before eating, drinking, toileting, using tobacco products, or other activities that may result in bodily absorption of particles, wash exposed areas thoroughly. Because preservatives or sawdust may accumulate on clothes, they should be laundered before reuse. Wash work clothes separately from other household clothing.

For handling and use information visit:

SplashWood® brand and TideTuff® brand pressure treated products are treated with a Chromated Copper Arsenate (CCA) preservative and may be used in federally approved applications only.

YellaWood® brand pressure treated products are treated with micronized copper azole preservative process.

Warranty and MSDS information is available online.

SplashWood®, TideTuff®, YellaWood® and the yellow tag are federally registered trademarks of Great Southern Wood Preserving, Incorporated. The Great Southern Wood Preserving, Incorporated. logo is a trademark of Great Southern Wood Preserving, Incorporated.

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