™
Protection through every stage of construction
Build the framelike it matters.
From the lumber package to the finished home, RezWood™ protects the frame through construction and beyond. The frame disappears behind the finishes. Its protection should not.
The Re
ilient Wood™ Advantage.
The ReZilient Wood™ Advantage is peace of mind: treated lumber supported by written warranty options through construction and beyond. Choose a treatment to see the coverage available for that project.
Framing exposure
Mold
Termites
Rot
Specified fire performance
!RezWood™ 4400 onlyWarranty availability, eligibility, duration, registration, remedies, and exclusions vary by treatment and project. Complete current written terms control.
Four treatment systems
Choose the protection
the project needs.
Each treatment has its own color, performance focus, and dedicated technical page. Start with the project conditions—not a one-size-fits-all answer.
3-in-1 framing protectionThe foundational green RezWood™ treatment for dimensional framing—factory-applied protection against mold growth, fungal decay, and subterranean termites, including Formosan termites, without changing the way crews frame.
See the warranties ↗
3-in-1 outdoor durabilityRezWood™ 2200EX extends mold, decay, and subterranean-termite protection into documented above-ground exterior uses, adding water-repellent and color components for wood that will face the weather.
See the warranties ↗
3-in-1 protection + E84Blue-identifiable dimensional framing that combines mold, decay, and subterranean-termite protection with ASTM E84-tested surface-burning performance for projects that do not require code-defined FRT lumber.
See the warranties ↗
4-in-1 FRT protectionThe red RezWood™ system combines mold, decay, and subterranean-termite protection with documented fire-retardant treatment for qualifying dimensional-lumber applications where FRTW is required.
See the warranties ↗What we protect against
Protection begins
in the material.
RezWood™—ReZilient™ wood by design—is factory treated before it reaches the frame with a custom, water-based wood-preservation blend. The documented systems inhibit mold growth and resist fungal decay and subterranean termites—including Formosan termites—before the lumber is covered by sheathing, insulation, and finishes.
Designed around the wood
Water-based.
Mineral-centered.
RezWood™ is designed to preserve visible grain, familiar handling, and normal framing practices. The supplied GREENGUARD certificates identify 2200, 3300, and 4400 as systems tested with wood under UL 2818 for low chemical emissions. Low-emissions certification is product-specific; it does not mean chemical-free or zero emissions.
Mold
Protection begins in the material—not after growth appears.
Rot
Resists fungal decay that can quietly weaken wood.
Termites
Built-in resistance to subterranean termites, including Formosan termites, that often work unseen.
Fire
3300 adds E84 performance; 4400 is the code-driven FRT system.
Compare the documented protection
The same threat can call for a different treatment.
“Treated” is not a universal performance claim. The exact preservative system, exposure rating, and technical documentation determine what the lumber is designed to resist.
Mold growth
RezWood systems document mold-growth inhibition for the treated lumber. Conventional pressure-treated products vary, so mold performance should be confirmed from the exact product rather than assumed from the word “treated.”
Fungal decay
Both categories can resist decay when the treatment and Use Category match the exposure. Pressure-treated products remain available for ground-contact conditions that current RezWood products do not claim.
Wood-boring insects
Both categories can be specified for insect resistance. RezWood product and warranty language identifies the covered system, lumber, exposure, and listed termites; untreated wood remains outside that protection.
Fire performance
Preservative treatment is not automatically fire-retardant treatment. RezWood 3300 adds documented surface-burning performance but is not FRTW; RezWood 4400 is the code-driven fire-retardant system and must follow the documented assembly or application.

From start to finish protection
The frame disappears.
The protection stays.
A finished home can hide thousands of feet of structural lumber. RezWood™ puts protection into that material before it is covered—then good drainage, flashing, ventilation, drying, inspection, and maintenance help the whole building perform.
RezWood™ protects the bones of your building.
When RezWood™ is used throughout the framing package, the treated studs, plates, joists, and other structural members carry the documented protection—helping protect the parts that matter long after the finishes go on. Cabinets, trim, furniture, sheathing, and other untreated wood or cellulose materials remain outside that protection. Routine inspection is still a good idea because it can identify activity affecting materials that were not treated with RezWood™.
EPA termite-control guidance ↗What we treat
Familiar lumber.
Better protected.
RezWood™ treatment is available for common dimensional framing lumber in familiar sizes and stock lengths—so builders can specify protection without reinventing the frame.
Southern Yellow Pine
A familiar structural species available across RezWood™ treatment programs.
SYPSpruce–Pine–Fir
Common SPF framing lumber treated for the selected RezWood™ protection system.
SPFDouglas Fir + others
Douglas Fir and other suitable softwood species can be evaluated for availability and treatment upon request.
DFSizes + stock lengths
Available in common dimensional-lumber lengths. Confirm species, grade, size, and quantity when ordering.

The company behind the treatment
Texas Wood Tech
makes the wood better.
Texas Wood Tech is the treating company. RezWood™ is the protected-lumber brand delivered to builders, dealers, component plants, architects, and owners.
Treated in the USA
A Texas wood-treatment platform built around controlled production and identifiable products.
Built for real framing
Common dimensional lumber, familiar tools, and recognizable jobsite methods.
Documentation matters
Product selection, applications, warranties, and fire claims depend on current approved documents.
Supplier + applicator network
Find the wood.
Join the network.
Approved RezWood™ sellers will appear here as the network grows. Contractors, dealers, component manufacturers, and potential suppliers can contact the RezWood™ team directly.
Only approved sellers added by Texas Wood Tech are displayed.
Built for a growing national network.
The directory is being built.
New locations will appear only after approval by Texas Wood Tech.