Redwood has been recognized for
its fire resistance; in fact, redwood-clad
structures were credited with limiting the
extent of the great fires following the 1906 San
Francisco earthquake. Redwood has historically
been used in firewalls and fire doors.
There is a grade of Redwood for
almost any application suitable for wood.
Architectural grades of redwood should be
specified where the visibility and design
integrity call for the material to maintain its
appearance long beyond initial application.
These quality redwood grades are available
Certified Kiln Dried or unseasoned. Unequaled in
beauty and stability, they are the best choice
for precision joined and intricate or formal
Clear All Heart
Finest architectural heartwood grade. Available
in Kiln Dried, Air Seasoned or Green Wood. It is well manufactured, free of
defects on one face. Reverse side might have
slight imperfections. Available surfaced or
saw-textured. Used for siding, paneling, trim,
molding fascia and mill work. Also fine for
decks and garden structures.
Similar quality to Clear All Heart except
containing various amounts of sapwood. Ideal for
highly visible, above-ground applications.
Available in Kiln Dried, Air Seasoned or Green
Contains limited knots and characteristics not
permitted in clear grades. Uses similar to Clear
Similar characteristics as B Heart but
containing sapwood. Same uses as Clear. This is
a quality grade containing sapwood,
limited knots and other characteristics
not permitted in Clear All Heart and
Clear. This is used for quality decking,
garden shelters and other above-ground
These economical grades of redwood are
tailor-made for outdoor applications.
Their varied wood grains and
knot-textured surfaces blend well with
other natural materials. Garden grades
are available seasoned or unseasoned and are
usually surfaced on four sides (S4S).
They are available in dimensions from
timbers 20-feet in length to bender
board, used for edging garden walkways.
Construction Heart/Deck Heart
All heartwood grades contain knots. They are
recommended for work on or near the ground such
as posts, beams, joists and decking. Deck Heart
has similar appearance and uses as Construction
Heart but is also graded for strength. Deck
Heart is available in 2x2 and 2x6 only.
Heartwood is available seasoned or unseasoned.
Contains knots and combination of heartwood and
sapwood. It is recommended for above ground
applications such as railings, fence boards,
benches and decking. Deck Common has similar
appearance and uses as Construction Common but
is also graded for strength. Deck Common is
available in 2x4 and 2x6 only.
Most economical all-heartwood grade, allows
slightly larger knots than construction grades
with holes limited to the size of knots.
Allows checks, some splits and some
manufacturing flaws. Used for
retaining walls and garden or utility structures
on or near the ground.
Same characteristics as Merchantable Heart but
containing sapwood. Suitable for fence boards,
trellises and above ground garden and utility
Wood is a renewable resource and
redwood, as the fastest growing softwood in the
nation, is one of our most renewable building
information, contact the California Redwood