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SECTION 06130
REDWOOD LUMBER AND TIMBERS
 
 
Copyright 2016 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Humboldt Redwood; Redwood lumber and timber products.
This section is based on the products of Humboldt Redwood, which is located at:
3700 Old Redwood Hwy. Suite 200
Santa Rosa, CA 95403
Tel: 707-764-4472
Fax: 707-764-4444
Email: request info (​jhewitt@mendoco.com)
Web: www.getredwood.com
[ Click Here ] for additional information.
Humboldt Redwood was formed in 2008 and is working to cultivate a lasting legacy of environmentally responsible forestry and sourcing, manufacturing, and distribution of top-quality Redwood and Douglas-fir lumber products. The company offers a unique mix of dimensional lumber for timber frame, post-and-beam, and outdoor living construction projects.
Humboldt Redwood's forestry operations include approximately 327 square miles (209,300 acres) of coast Redwood and Douglas-fir forestlands in Humboldt County, California. Logs from Humboldt Redwood's forestry operations are manufactured into solid lumber products at the company's sawmill in Scotia, California. These lumber products are then transported to the company's distribution centers in Woodland and Fontana, California, where customer orders are processed and shipped.
Humboldt Redwood maintains chain-of-custody certification for its sawmill, distribution centers, and its forestry operations through the Forest Stewardship Council (FSC). FSC is the leading certification standard for healthy, well-managed forests worldwide. FSC certified Humboldt Redwood dimensional lumber contributes to credits under (1) LEED v4 Building product disclosure and optimization - sourcing of raw materials section and (2) SITES v2 Support responsible extraction of raw materials section.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Redwood products including the following:
1.
Timbers.
2.
Decking.
3.
Siding.
4.
Lumber.
5.
Pergolas and Arbors.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 06100 - Rough Carpentry.
1.3
REFERENCES
A.
Redwood Inspection Service (RIS) Standard Specifications for Grades of California Redwood Lumber 2000 Edition.
B.
Supplement No. 1 Redwood Inspection Service (RIS) Standard Specifications for Grades of California Redwood Lumber 2000 Edition.
C.
PS 20 - American Softwood Lumber Standard - US Department of Commerce, National Institute of Standards and Technology.
D.
ASTM E 84: Standard Test Method for Surface Burning Characteristics of Building Materials.
E.
California Building Code Chapter 7A: Materials and Construction Methods for Exterior Wildfire Exposure.
F.
Forest Stewardship Council (FSC) Certification (Humboldt Redwood Scotia Sawmill Certificate Code SCS-COC-001924)
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
 
** NOTE TO SPECIFIER ** Delete the following if LEED certification is not applicable.
 
C.
LEED v4 Submittals: Provide documentation of how the requirements shall be met for the following credits:
1.
Building product disclosure and optimization - sourcing of raw materials
a.
Option 2. Leadership extraction practices (1 point). Wood products. Wood products must be certified by the Forest Stewardship Council or USGBC-approved equivalent. Products meeting wood products criteria are valued at 100% of their cost for the purposes of credit achievement calculation.
 
** NOTE TO SPECIFIER ** Delete the following if SITES certification is not applicable.
 
D.
SITES v2 Submittals: Provide documentation of how the requirements shall be met for the following credits:
1.
Credit 5.7: Support responsible extraction of raw materials
a.
Option 3. Support raw material suppliers and/or manufacturers that meet or exceed standards for raw material extraction (5 points). New wood products: be certified by the Forest Stewardship Council (FSC) (or local equivalent for products outside the United States).
 
** NOTE TO SPECIFIER ** Delete the following if FSC certification is not applicable.
 
E.
FSC Submittals: Provide documentation indicating manufacturer is FSC Chain-of-Custody certified.
1.5
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Handle materials to avoid damage.
C.
Store on a level surface with blocking to keep boards off the ground and provide uniform and adequate support.
D.
Redwood timbers contain water soluble extractives (tannins) which can stain concrete or other masonry. If stored over concrete, cover the concrete with a tarp to prevent staining in the event of rain.
1.6
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.7
SEQUENCING
A.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Humboldt Redwood, which is located at: 3700 Old Redwood Hwy. Suite 200; Santa Rosa, CA 95403; Tel: 707-764-4472 ; Fax: 707-764-4444; Email: request info (​jhewitt@mendoco.com); Web: www.getredwood.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.2
TIMBERS
 
** NOTE TO SPECIFIER ** Select material required. Reference Redwood Inspection Service (RIS) Standard Specifications for Grades of California Redwood Lumber.
 
A.
Material: Redwood.
B.
Posts and Timbers:
1.
Grade: No. 2 Structural.
2.
Grade: Heart B.
3.
Grade: Construction Heart.
 
** NOTE TO SPECIFIER ** Select either rough green or surfaced four sides.
 
4.
Rough green.
5.
Surfaced four sides.
 
NOTE TO SPECIFIER ** Select post size required. Posts are typically 4 x 4 or larger (standard nominal sizes). Larger sizes are special order.
 
6.
Posts: 4 x 4.
7.
Posts: 6 x 6.
8.
Posts: 8 x 8.
9.
Posts: 10 x 10
10.
Posts: 12 x 12
 
** NOTE TO SPECIFIER ** Select beam size required. Beams are typically 4 x 6 or larger (standard nominal sizes). Larger sizes are special order.
 
11.
Beams: 4 x 6.
12.
Beams: 4 x 8.
13.
Beams: 4 x 10.
14.
Beams: 4 x 12
15.
Beams: 6 x 8.
16.
Beams: 6 x 10.
17.
Beams: 6 x 12.
 
** NOTE TO SPECIFIER ** Available lengths are 8 to 24 feet.
 
18.
Length: 8 feet minimum.
19.
Length: 24 feet maximum.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.3
DECKING
A.
Material: Redwood.
1.
Flame Spread (ASTM E 84): Class B.
2.
California Building Code Chapter 7A: Materials and Construction Methods for Exterior Wildfire Exposure.
B.
Wood Decking:
 
** NOTE TO SPECIFIER ** Select grade required.
 
1.
Grade: Heart B.
2.
Grade: Deck Heart/Construction Heart.
3.
Grade: B Grade.
4.
Grade: Deck Common/Construction Common.
5.
Grade: Heart Clear.
6.
Grade: Clear.
 
** NOTE TO SPECIFIER ** Select decking size required. Deck Heart and Deck Common Grades are available in 2 x 4 and 2 x 6 only. Other grades may be available in other sizes.
 
a.
Size: 2 x 4.
b.
Size: 2 x 6.
 
** NOTE TO SPECIFIER ** Select length required. Available lengths are 6 to 20 feet.
 
c.
Length: 6 feet minimum.
d.
Length: 20 feet maximum.
 
** NOTE TO SPECIFIER ** Select spacing required.
 
7.
Support Spacing, Decking Perpendicular to Supports: 24 inches (2x6).
8.
Support Spacing, Decking Perpendicular to Supports: 16 inches (2x4).
9.
Support Spacing, Decking Diagonal to Supports: 16 inches (2x6).
10.
Support Spacing, Decking Diagonal to Supports: 12 inches (2x4).
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.4
SIDING
A.
Material: Redwood.
B.
Grade:
 
** NOTE TO SPECIFIER ** Delete grades not required.
 
1.
Heart Clear.
2.
Heart B.
3.
Clear.
4.
B Grade.
C.
Texture:
 
** NOTE TO SPECIFIER ** Delete texture not required.
 
1.
Surfaced.
2.
Saw-textured.
D.
Thickness:
 
** NOTE TO SPECIFIER ** Delete thickness not required.
 
1.
1 inch, nominal.
E.
Width:
 
** NOTE TO SPECIFIER ** Delete widths not required.
 
1.
4 inch, nominal.
2.
6 inch, nominal.
3.
8 inch, nominal.
4.
10 inch, nominal.
5.
12 inch, nominal.
F.
Length:
 
** NOTE TO SPECIFIER ** Select length required. Available lengths are 6 to 20 feet.
 
1.
Length: 6 feet, minimum.
2.
Length: 20 feet, maximum.
G.
Siding Patterns:
 
** NOTE TO SPECIFIER ** Delete types not required. Reference California Redwood Association Redwood Lumber Patterns No. 17.
 
1.
Bevel.
2.
Board and Batten
3.
Rabbeted Bevel
4.
Shiplap
5.
Tongue and groove.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.5
LUMBER
A.
Material: Redwood.
B.
Grade:
 
** NOTE TO SPECIFIER ** Select grade(s) required.
 
1.
Construction Heart.
2.
Heart B.
3.
Heart Clear.
4.
Construction Common.
5.
B Grade.
6.
Clear.
C.
Surface:
 
** NOTE TO SPECIFIER ** Select surfacing required.
 
1.
Rough.
2.
Surfaced Four Sides.
3.
Surfaced One Side, Two Edges.
D.
Sizes:
 
** NOTE TO SPECIFIER ** Select sizes required. Available in 1 x 2 through 1 x 12 and 2 x 2 through 2 x 12.
 
1.
1 x 2.
2.
1 x 4.
3.
1 x 6.
4.
1 x 8.
5.
1 x 10.
6.
1 x 12.
7.
2 x 2.
8.
2 x 4.
9.
2 x 6.
10.
2 x 8.
11.
2 x 10.
12.
2 x 12.
E.
Lengths:
 
** NOTE TO SPECIFIER ** Select lengths required. Available lengths are 6 to 20 feet.
 
1.
Length: 6 feet, minimum.
2.
Length: 20 feet, maximum.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.6
PERGOLAS AND ARBORS
A.
Material: Redwood.
 
** NOTE TO SPECIFIER ** Delete products not required.
 
B.
Napa Redwood Pergola:
1.
Posts: 6 x 6.
2.
Post Spacing: 8 feet.
3.
Overhang: 1 foot.
4.
Total Area: 10 x 10 feet.
5.
Lath: 2 x 2.
6.
Bottom Headers: 3 x 10, corbelled ends.
7.
Middle Headers: 3 x 8, corbelled ends.
8.
Top Headers: 3 x 6, corbelled ends.
9.
Hardware: Galvanized steel.
C.
Durango Redwood Pergola:
1.
Posts: 6 x 6.
2.
Post Spacing: 8 feet.
3.
Overhang: 1 foot.
4.
Total Area: 10 x 10 feet.
5.
Lath: 3 x 6.
6.
Bottom Headers: 3 x 12, corbelled ends.
7.
Top Headers: 3 x 12, corbelled ends.
8.
Hardware: Galvanized steel.
D.
Two-Post Redwood Arbor:
1.
Posts: 6 x 8.
2.
Post Spacing: 7 feet.
3.
Total Area: 4 feet 6 inches by 9 feet.
4.
Headers: 3 x 8, corbelled ends.
5.
Rafters: 3 x 6, corbelled ends.
6.
Hardware: Galvanized steel.
E.
Custom Pergola:
 
** NOTE TO SPECIFIER ** Modify as required to meet design requirements.
 
1.
Posts: ____.
2.
Post Spacing: ____.
3.
Overhang: ____.
4.
Total Area: ____.
5.
Lath: ____.
6.
Bottom Headers: ____.
7.
Middle Headers: ____.
8.
Top Headers: ____.
9.
Hardware: ____.
2.7
FASTENERS
 
** NOTE TO SPECIFIER ** Delete type of fastener not required.
 
A.
Material: Stainless steel.
B.
Material: Hot-dip galvanized steel.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
Finish products in accordance with manufacturer's instructions.
C.
Use only corrosion resistant fasteners. Acceptable are stainless steel or hot-dipped galvanized nails.
D.
Joints shall fall over framing lumber and shall be double nailed. Do not nail any less than 1/2 inch (13 mm) from any edge and fasten at a minimum of every 24 inches (610 mm) on center.
E.
Drive nails perpendicular to the framing lumber and the wood product; drive nails flush with the product's surface. Nails shall penetrate at least 1-1/4 inches (32 mm) into the structural framing.
3.4
PROTECTION
A.
Protect installed products until completion of project.
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION