Thompsonized® Wood is pine or redwood that has been specially pressurized and waterproofed on the sides, ends and throughout — all the way to the core.

Most traditional lumber treatments only protect the wood from mold, mildew, rot and termites. But our unique formula drives special waterproofing ingredients deep inside the wood, making sure Thompsonized® Wood is waterproofed to the core®. Thompsonized® Wood offers three times the industry standard for water repellency.

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