![]() ![]() Those using this on-line calculator assume all liability and hold PLIB harmless from its use. Neither PLIB nor its members assume any responsibility for any particular design prepared from this on-line calculator. Using CalQlata's Area Moments calculator, a beam of 0.2m x 0.4m has a second moment of area of 0.001067m (Fig 5) which is greater than 0.000801m and therefore will result in a smaller deflection than the design requirement. PLIB believes the information generated by this calculator is accurate and conforms with design standards referenced by U.S. The minimum second moment of area for the longitudinal beam is 0.000801m (Fig 4). 17 and/or the National Design Specification (NDS) Supplement published by the American Wood Council for adjustment factors. For other service conditions or load conditions, see paragraph 200 a-l in WCLB Standard No. In calculating the design values, the change in strength and stiffness that occurs as lumber dries has been taken into consideration as well as the reducing in size that occurs when unseasoned lumber shrinks. Note: The design values shown in the table are for normal load duration and dry service conditions and are applicable to lumber surfaced either unseasoned (S-GRN) or dry (S-DRY or KD). ![]()
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