EN 12249:1999
(Main)Sawn timber used in pallets - Permitted deviations and guidelines for dimensions
Sawn timber used in pallets - Permitted deviations and guidelines for dimensions
This standard specifies two classes of permitted deviations (due to variability in sawing and processing) from target thicknesses, widths and lengths for timber used in pallets when measured at a defined reference moisture content). It also recommends dimensions of sawn timber used in pallets.
Schnittholz in Paletten - Zulässige Abweichungen und Leitfaden für Maße
Diese Norm legt zwei Klassen von zulässigen Abweichungen (aufgrund der Unterschiede beim Einschnitt und der Bearbeitung) von Soll-Dicken, -Breiten und -Längen für Schnittholz in Paletten bei einer bestimmten Bezugsfeuchte fest. Sie empfiehlt außerdem Maße für Schnittholz zur Verwendung in Paletten.
Bois sciés utilisés dans les palettes - Ecarts admissibles et guide pour les dimensions
La présente norme spécifie deux classes d'écarts admissibles (dûs aux variabilités inhérentes au sciage et à la transformation) des épaisseurs, largeurs et longueurs cibles pour les bois utilisés dans les palettes lorsqu'ils sont mesurés à une teneur en humidité de référence définie). Elle recommande également des dimensions de bois sciés utilisés dans les palettes.
Žagani les za palete - Dovoljena odstopanja in smernice glede mer
General Information
Overview
EN 12249:1999 (CEN) covers dimensional tolerances and recommended sizes for sawn timber used in pallets. The standard specifies two classes of permitted deviations - reflecting variability in sawing and processing - from target thicknesses, widths and lengths. All deviations are referenced to a defined reference moisture content (as set out in the standard). It also provides recommendations for commonly used sawn timber dimensions for pallet manufacture.
Key Topics and Requirements
- Permitted deviation classes: two tolerance classes are defined to accommodate typical manufacturing variability in sawn timber for pallets.
- Dimensional scope: guidance applies to target thickness, width and length of pallet timber components.
- Reference moisture content: measurement and assessment of dimensions are tied to a defined reference moisture content to ensure consistency in sizing.
- Recommended dimensions: the standard recommends commonly used sawn timber sizes for pallet parts (deck boards, stringers, cleats), supporting standardisation across the supply chain.
- Measurement and conformity: procedures for measuring dimensions at the reference moisture content and assessing compliance with permitted deviations are indicated in the standard text.
Note: EN 12249:1999 focuses on dimensional and processing variability; it does not replace mechanical strength grading or species-specific requirements.
Practical Applications
- Pallet manufacturers: specify acceptable timber tolerances and recommended sizes when designing and sourcing pallet components.
- Sawmills and timber processors: use the standard to control cutting and planing processes, set production tolerances and reduce rejects.
- Quality control and procurement teams: verify incoming timber batches meet dimensional tolerance classes and reference moisture content requirements.
- Logistics and material handling designers: ensure pallet components are interchangeable and fit standard designs, improving repairability and lifecycle management.
- Standards and compliance officers: align company specifications with a recognised CEN standard for market access in Europe.
Benefits include improved interchangeability of pallet components, reduced assembly issues, consistent fit and finish, and clearer procurement specifications.
Related Standards
- National and international standards for pallet design and testing, wood packaging, and phytosanitary treatment (e.g., ISPM 15) are commonly used alongside EN 12249:1999.
- Timber grading and moisture-content standards should be considered in conjunction with EN 12249 for complete material specification.
Keywords: EN 12249:1999, sawn timber, pallets, permitted deviations, dimensions, CEN, tolerance classes, reference moisture content, pallet timber, sawmills, pallet manufacturers.
Frequently Asked Questions
EN 12249:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Sawn timber used in pallets - Permitted deviations and guidelines for dimensions". This standard covers: This standard specifies two classes of permitted deviations (due to variability in sawing and processing) from target thicknesses, widths and lengths for timber used in pallets when measured at a defined reference moisture content). It also recommends dimensions of sawn timber used in pallets.
This standard specifies two classes of permitted deviations (due to variability in sawing and processing) from target thicknesses, widths and lengths for timber used in pallets when measured at a defined reference moisture content). It also recommends dimensions of sawn timber used in pallets.
EN 12249:1999 is classified under the following ICS (International Classification for Standards) categories: 55.180.20 - General purpose pallets; 79.040 - Wood, sawlogs and sawn timber. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Žagani les za palete - Dovoljena odstopanja in smernice glede merSchnittholz in Paletten - Zulässige Abweichungen und Leitfaden für MaßeBois sciés utilisés dans les palettes - Ecarts admissibles et guide pour les dimensionsSawn timber used in pallets - Permitted deviations and guidelines for dimensions79.040Les, hlo
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