ASTM D5456-24 PDF

Full title and description

Standard Specification for Evaluation of Structural Composite Lumber Products — ASTM D5456-24. This ASTM specification establishes qualification, testing, sampling, analysis, and quality-control requirements used to evaluate structural composite lumber (SCL) products intended for structural use, including the suite of mechanical and physical tests and procedures required to assign design values and to maintain those values through ongoing quality assurance.

Abstract

This specification recognizes the complexity of structural glued products and applies to structural composite lumber portions of manufactured structural components. It defines test methods and performance requirements (moisture-content measurement; bending; tension parallel to grain; compression parallel and perpendicular to grain; longitudinal shear; connection performance; bond quality; product and edgewise durability tests; lateral edge nail durability; thickness swell; and density-gradient assessment) as well as requirements for initial qualification sampling, assignment of allowable design values, and quality-control/cumulative evaluation programs.

General information

• Status: Active (current edition D5456-24).
• Publication date: 2024 (current edition D5456-24; standard page shows last updated Dec 10, 2024; other aggregators list publication in 2024).
• Publisher: ASTM International.
• ICS / categories: 79.060.01 (Wood-based panels / wood materials).
• Edition / version: D5456-24 (edition year suffix “-24”).
• Number of pages: 36 pages (current edition).

Scope

ASTM D5456-24 applies to manufactured structural composite lumber products intended for structural applications in predominantly dry service conditions. The standard covers both prescriptive test procedures and statement-level requirements that sampling and analysis be specific to the particular product and production facility. Manufacturing details are outside the scope; the focus is on product qualification, mechanical and physical test methods, analysis, and the assignment and maintenance of allowable design values for each manufacturer and production facility.

Key topics and requirements

• Initial qualification program and sampling plans for each product and production facility.
• Mechanical test requirements: static bending, tension parallel to grain, compression (parallel and perpendicular), longitudinal shear, and connection tests.
• Physical property measurements: moisture content, thickness swell, density gradient through thickness.
• Bond-quality and adhesive evaluation; requirements that address bond durability and appropriate adhesives for SCL.
• Durability testing: product durability, edgewise bending durability, and lateral edge nail durability.
• Analysis and statistical procedures for assigning allowable design values and requirements for ongoing quality-control and cumulative evaluations to preserve design values.
• Manufacturer- and facility-specific evaluation; testing and values are established per manufacturer and, where applicable, per production facility.

Typical use and users

Used by engineered-wood manufacturers to qualify SCL products and by testing laboratories that perform qualification and QC tests. Specifiers, structural engineers, building officials, code agencies, and third‑party quality-assurance agencies use the standard to verify product performance and to confirm allowable design values for engineered wood members (LVL, PSL, and other SCL types) used in beams, headers, joists, and other structural elements.

Related standards

ASTM D5456 is typically used alongside other ASTM test methods and specifications for wood products—examples include ASTM D5055 (prefabricated wood I‑joists), ASTM D4442 (moisture-content measurement), ASTM D2017 (accelerated natural decay testing), and test methods for mechanical properties such as ASTM D4761. Relevant code/acceptance criteria and third‑party evaluation guidance (for example ICC‑ES test programs) often reference D5456 when evaluating SCL materials and assemblies.

Keywords

structural composite lumber, SCL, LVL, PSL, qualification, design values, bending, compression, shear, moisture content, bond quality, durability, quality control, ASTM D5456-24.

FAQ

Q: What is this standard?

A: ASTM D5456-24 is the ASTM International standard specification for evaluation of structural composite lumber products — a qualification and test-specification document used to assess mechanical and physical properties and to assign allowable design values for SCL products.

Q: What does it cover?

A: It covers sampling and testing procedures (bending, tension, compression, shear, connection tests), moisture-content measurement, bond-quality and durability assessments, statistical analysis for assigning design values, and quality-control/cumulative evaluation requirements for maintaining those values. It applies to structural composite lumber portions of manufactured structural components intended for use in primarily dry-service conditions.

Q: Who typically uses it?

A: Product manufacturers, independent testing laboratories, structural engineers and specifiers, building-code officials, third‑party quality-assurance agencies, and product evaluation services (e.g., ICC‑ES) use the standard to qualify and verify structural composite lumber.

Q: Is it current or superseded?

A: The D5456-24 edition is the current active edition (D5456-24). ASTM’s product page shows the D5456-24 edition as active with a last-updated entry in 2024. Users should confirm the edition date when purchasing or referencing the standard.

Q: Is it part of a series?

A: D5456 is part of the family of ASTM standards addressing evaluation and testing of wood and engineered‑wood products and is often referenced with related specifications and test methods (for example D5055, D4442, D4761, and others used to evaluate structural performance and durability). The standard is managed by ASTM Committee D07 (wood and wood products).

Q: What are the key keywords?

A: structural composite lumber, SCL, qualification, allowable design values, bending, shear, compression, moisture content, bond quality, durability, quality control.