Kennison Forest Products - Scaffold Planks / Plywood / Toe Boards

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Z-Plank ^®

Kennison Forest Products is the Exclusive Distributor of Z-Plank Laminated Veneer Lumber (LVL) Scaffold Plank in North America.

Z-Plank® is a strong yet lightweight Laminated Veneer Lumber scaffold plank. The structural uniformity of LVL combined with the strict quality control of all processes of manufacturing ensures Z-Plank is safe and reliable scaffold plank.

Z-Plank Specifications

Z-Plank is structural Laminated Veneer Lumber (LVL) manufactured in accordance with AS/NZS 4357:1995 'Structural Laminated Veneer Lumber' and is Product Certified by the Engineered Wood Products Association of Australia to equal or exceed the performance claims specified in this brochure.

Branding

(Optional edge painting is also available in blue, yellow, orange, green and red.)

Z-Plank is manufactured in a quality controlled process as required by ANSI A10.8. The compliance and process based quality control requirements is third party audited by the Engineered Wood Products Association of Australia (EWPAA). The audits, end product testing and market inspection are used as the basis for Product Certification by the EWPAA as a JAS-ANZ accredited Product Certification body. JAS-ANZ stands for the government established "Joint Accreditation System of Australia and New Zealand" which exists as the peak organization for accreditation of Product Certification bodies. The EWPAA's Quality Control Program has been a registered Quality Management System under ISO-9002.

• AS/NZS 4357 : 1995 - Structural laminated veneer lumber.
• ANSI A10.8 - 2001, Safety Requirements for Scaffolding.
• OSHA, Occupational Safety & Health Administration, • U.S. Dept. Of Labour, Regulations (Standards - 29 CFR) Scaffold
• Specifications - 1926 Subpart L, Appendix A.
• BS 5973 : 1993 Code of practice for access and working • scaffolds and special scaffold structures in steel.
• BS 2482 Specification for timber scaffold boards.
• Products produced can meet FSC standards.

1. LVL is periodically sampled from production and tested for Modulus of Elasticity and Modulus of Rupture in accordance with AS/NZS 4357.  In addition,
2. Each scaffold plank is proof loaded using the CHHWP Quality Control program and its stiffness measured for verification of strength and stiffness claims.

For use in accordance with OSHA

Maximum spans determined for standardized live loads in accordance with OSHA, Standards 29 CFR 1926.451 and Subpart L, Appendix A.

1.   Spans are from center to center of scaffold supports.
2.   Deflections are limited to L/60 per OSHA requirements.
3.   The "Person" load is defined in ANSI A10.8 as a 200-pound person with 50 pounds of equipment.
a. The "1-Person" Load is applied at mid-span.
b. The "2-Person" Load is applied with each "person" load placed 18" to either side of mid span.
c. The "3-Person" Load is applied with a "person" load at mid span,  and a "person" load at 18" to either side of mid span.
4.   For conditions other than those listed above, contact CHHWP or a professional engineer.
5.   Z-Plank meets all criteria and conditions as prescribed by OSHA and  ANSI A10.8 standard.
6.   Planks are available in lengths of 8' to 20'.

1.   The design properties are for untreated LVL scaffold planks used under dry conditions.*
2.   The design properties are based on a "flat" or plank orientation.
3.   If the moisture content of the planks is expected to exceed 16%, the Moment Capacity shall be multiplied by 0.8 for wet use conditions.
4.   Fastener values for scaffold planks shall be equivalent to SPF Lumber values.
5.   The allowable Moment Capacity was determined in accordance with the ANSI A10.8 subcommittee guidelines Appendix C.

*Dry conditions are defined as an environment where the moisture content of the planks will not exceed 16%.

Proof testing process: Before shipment, all Z-Planks are proof tested using the unique CHHWP - loading process to verify that each plank meets the design values shown in Table 2.

 

 

DI65 Scaffold Plank

Dense Industrial 65 Scaffold Plank
Available in S4S, rough and straited surfaces

Stress Rating - 2200 F
MOE - 1.8

Characteristics permitted and limiting provisions are:
Compression wood - Prohibited if in readily identifiable and damaging form.
Checks - Surface seasoning checks, not limited; though checks at ends are    limited as splits.
Knots - Sound, firm, encased, and pith knots, if tight and well spaced are permitted on the wide face in sizes not to exceed the following:

Manufacture - Standard E (see para. 722(e))
Pitch and Pitch Streaks - Not limited
Pockets - Not limited
Shakes - On ends, limited as splits if through; away from ends, heart shakes    up to 2' long, none through; ring shakes 1/3 the width of piece.
Skips - Hit and miss on any    face in occasional piece, but heavy skip on narrow face permitted in 10% of pieces.
Slope of Grain - 1 in 14.
Splits - Equal to width of the piece.
Stain - Medium.
Warp - 1/2 medium except very light twist.
Wane - 1/4 the width, 1/4 the thickness except 5% of the pieces may have    wane, 1/3 the width, 1/2 the thickness,for 1/4 the length.

Taken from 2002 SPIB Standard Grading Rules for southern pine lumber Sec. 502, pgs. 95-96.

Dense Industrial 65 Scaffold PlankProper use of 1 -1/2" x 9 - 1/4" (S4S) smooth surface scaffold plank under dry use (<19% moisture) that meets the grading rules published by the grading agencies approved by the American Lumber Standards Committee and ANSI safety requirements.

Conforms to ANSI A 10.8 Loading Requirements.

Requirements:

1.   Workers & tools weigh 250 pounds.
2.   One worker located at span center.
3.   Two workers located 18" on either side of span center.
4.   Three workers located as indicated in requirements 2 & 3 above.
5.   Medium duty loading, 50 psf.
6.   Heavy duty loading, 75 psf.

Plank testing was performed and loading charts were developed by Ralph E. Bennett III, P.E. 12/95