Use and Care Guide
Hi-bor
®
Borate Pressure Treated Wood Products:
• For use in above ground weather protected structural framing in residential and commercial projects, such as
residential dwellings, industrial buildings, or any application requiring wood protected against termites, carpenter
ants, and fungal decay, including dry rot.
• Hi-bor Borate Pressure Treated Wood Products are backed by a 20-year limited warranty (See warranty for details.).
• Pressure treated with an EPA registered borate wood preservative for
protection against termites, carpenter ants, and fungal decay.
• Hi-bor Borate Pressure Treated Lumber is recommended for sill plate, joists,
studs, roof trusses, blocking, rafters, beams, and other framing applications.
• Hi-bor Borate Pressure Treated Plywood is recommended for wall sheathing,
roof sheathing, and suboors, where not exposed to wetting conditions.
Hi-bor
®
Borate Pressure Treated
Wood Product Information Guide
Soil Treatment or as required by the Building Codes
• Roof Trusses
• Studs
• Wall Sheathing
• Roof Sheathing
• Joists & Rafters
• Sill Plates
• Many more Uses
Materials
• Hi-bor Borate Pressure Treated Wood is treated
with Disodium Octaborate Tetrahydrate (DOT).
• Hi-bor Borate Pressure Treated Wood is accepted
by Hawaii building codes, major model building
codes, and it is supported by the ICC Legacy
Report #NER-648.
Workability
• As with untreated wood, Hi-bor Borate Pressure
Treated Wood may be sawn, drilled, or routed
with standard woodworking equipment.
• Hi-bor Borate Pressure Treated Lumber is
also recommended for fascia, trim, and
miscellaneous wood applications, when properly
protected from the weather (refer to limitations).
• Products may be fastened with standard
(common) nails and screws. Check local
building codes which may vary in requirements.
Limitations
• Hi-bor Borate Pressure Treated Wood is intended
to be used for framing and applications where
the wood is not in direct contact with the
ground and is continuously protected from
liquid water. Normal exposure to weather
during ordinary installation will not adversely
affect the performance of the product.
• Hi-bor Borate Pressure Treated Wood Products
should not be used for outdoor structures
exposed to weathering and rain.
• Facia and other exposed applications must be
protected with primer and at least two coats of
paint. Material must be allowed to dry before
painting.
Technical Information
• All products bear a permanent ink stamp or end
tag carrying the Hi-bor trademark, a quality
mark of an approved third party inspection
agency, and the name of the treating company
that produced the treated products.
• For further technical information and
Material Safety Data Sheets, contact Koppers
Performance Chemicals Inc. as listed under
Warranty and Technical Support.
Job Site Storage and Handling
• As with untreated wood, it is necessary to keep
Hi-bor Borate Pressure Treated Wood products
dry by covering the material with plastic or
storing the materials under shelter and elevating
the material above the ground to allow for air
circulation.
• Sheathing should be covered as soon as
practical after installation. If wetted during
initial construction, allow materials to properly
dry before permanently enclosing with felt,
wallboard, etc.
• After working with the wood, and before eating,
drinking, and use of tobacco products, wash
exposed areas thoroughly.
Installation
• Field treatment of all end cuts and borings,
including plumbing and electrical holes is
required on all lumber and timbers over 2”
in thickness. Field treatment shall be either
a 2% solution (copper metal basis) of Copper
Naphthenate or a 10% solution of DOT, or
another end coat preservative.