Product Brochure
Redwood
Lumber Grades
Redwood grades are established in the
Standard Specifications for Grades of
California Redwood Lumber
issued by the
Redwood Inspection Service. Properly
grademarked lumber will bear the
RIS mark or that of another accredited
inspection bureau.
Garden Grades 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 dry 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 containing knots;
recommended for work on or near the
ground such as posts, beams, joists and
decking. Deck Heart has similar appear-
ance and uses as Construction Heart but
is also graded for strength. Deck Heart is
available in 2x4 and 2x6 only.
Construction Common/Deck Common
Contain knots and combination of heart-
wood and sapwood; recommended for
above-ground applications such as rail-
ings, 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.
Merchantable Heart Most economical
all heartwood grade, allowing larger knots
and some knotholes; used for retaining
walls and garden or utility structures on or
near the ground.
Merchantable Same characteristics
as Merchantable Heart but containing
sapwood; suitable for fence boards,
trellises and above-ground garden and
utility applications.
Architectural Grades Architectural
grades of redwood should be specified
where the visibility and design integrity
call for the material to maintain its appear-
ance long beyond initial application. These
quality redwood grades are available
Certified Kiln Dried, S-Dry or unseasoned.
Unequaled in beauty and stability, they
are the best choice for precision joinery
and intricate or formal architectural designs.
Clear All Heart AII heartwood, free
of knots; recommended for highly
visible applications.
Clear Similar quality to Clear All Heart
except containing sapwood; ideal for
highly visible, above-ground applications.
B Heart Contains limited knots and char-
acteristics not permitted in clear grades;
uses similar to Clear All Heart.
B Grade Similar characteristics as B
Heart but containing sapwood; same uses
as Clear.
Garden Grades Architectural Grades
■ Suitable grade for use
Most economical grade for use
Construction
Heart/Deck Heart
Construction
Common/Deck
Common
Merchantable
Heart
Merchantable
Clear
All Heart
Clear
B Heart
B Grade
Architectural ——— ——— ——— ———
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Garden
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Knots ■ ■ ■ ■
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Sapwood ———
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Posts ■ ——— ——— ——— ■
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Beams ■ ——— ——— ——— ■
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Joists ■ ——— ——— ———
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Decking
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Rails
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Fenceboards
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Benches
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Planters ■ ——— ■ ———
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Trellises
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Furniture
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