ASTM D25-12(2022)

Standard Specification for Round Timber Piles

ABSTRACT
This specification deals with the standards for unused round timber piles to be used either treated or untreated. This specification, however, does not cover preused piles unless the piles have the quality and design stresses equal to or greater than those prescribed herein. The piles shall be made of sound wood, free of decay, insect attacks, marine borer attack, and Limnoria damage. The piles shall also be cut above the ground swell and have a tapered tip.
SCOPE
1.1 This specification covers the physical characteristics of unused round timber piles to be used either treated or untreated.  
1.2 This specification is not intended for preused piles unless the piles have the quality specified by this specification and design stresses equal to or greater than those derived from Method D2899.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Jul-2022
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.04 - Pole and Pile Products

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D25 −12 (Reapproved 2022)
Standard Specification for
1
Round Timber Piles
ThisstandardisissuedunderthefixeddesignationD25;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3. Species of Wood
3.1 Piles shall be of any species of wood for which clear
1.1 This specification covers the physical characteristics of
wood strength values are given in Test Methods D2555.
unused round timber piles to be used either treated or un-
treated.
4. Classification
1.2 This specification is not intended for preused piles
4.1 Timber piles are commonly used to transfer structural
unless the piles have the quality specified by this specification
loads to sub surface soil bearing strata by way of friction or tip
and design stresses equal to or greater than those derived from
end bearing forces, or both.
Method D2899.
4.2 Method D2899 provides a basis for specifying the pile
1.3 The values stated in inch-pound units are to be regarded
size. This standard gives a procedure for estimating the design
as standard. The values given in parentheses are mathematical
stress at any location along the pile length. As design stress
conversions to SI units that are provided for information only
must always exceed that imposed under service conditions, the
and are not considered standard.
quotient of the structural loads divided by the design stress
1.4 This standard does not purport to address all of the
gives an estimate of the minimum section property required at
safety concerns, if any, associated with its use. It is the
any location.
responsibility of the user of this standard to establish appro-
4.3 Under this specification, pile size requirements esti-
priate safety, health, and environmental practices and deter-
mated at a critical location are extrapolated to either the tip or
mine the applicability of regulatory limitations prior to use.
buttendassumingalineartaper.Forthisspecification,pilesare
1.5 This international standard was developed in accor-
classified by nominal circumference and length.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Quality Requirement (All Piles)
Development of International Standards, Guides and Recom-
5.1 Piles shall be of sound wood, free of decay, insect
mendations issued by the World Trade Organization Technical
attack, marine borer attack, and Limnoria damage, except as
Barriers to Trade (TBT) Committee.
herein allowed in 13.2 and 14.1.
2. Referenced Documents
5.2 Piles shall be cut above the ground swell and have a
2 taper from butt to tip.
2.1 ASTM Standards:
5.3 Piles shall have an average rate of growth measured in
D9 Terminology Relating to Wood and Wood-Based Prod-
ucts the outer 50 % of the radius at the pile tip of not less than 6
D2555 PracticeforEstablishingClearWoodStrengthValues rings per inch and shall have an average summerwood content
D2899 Practice for Establishing Allowable Stresses for of not less than 33.3 % in the outer 50 % of the tip radius.
Round Timber Piles Exception: Piles with less than 6 rings per inch are acceptable
if the average is 50 % or more summerwood present in the
outer 50 % of the pile tip radius.
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood 5.4 Piles that cannot be adequately inspected for the physi-
and is under the jurisdiction of Subcommittee D07.04 on Pole and Pile Products.
cal requirements specified in this specification due to adhering
Current edition approved Aug. 1, 2022. Published August 2022. Originally
barnacles or other material shall not be permitted.
approved in 1915. Last previous edition approved in 2017 as D25 – 12(2017). DOI:
10.1520/D0025-12R22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Lengths
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1 All piles shall be furnished in lengths specified, except
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. that tolerances shall be allowed as follows:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D25−12 (2022)
6.1.1 Piles 40 ft (12.2 m) and shorter—plus 1 ft (0.3 m), 9.2 All knots and limbs shall be cut flush with the su
...