Block - rectangular, square or cylindrical deck spacer, often identified by its location within the pallet as corner block, end block, edge block, inner block, center or middle blocks.
Block Pallet - type of pallet with blocks between the pallet decks or beneath the top deck.
Bottom Deck - assembly of deck boards comprising the lower, load bearing surface of the pallet.
Captive Pallet - intended for use within the confines of a single facility, system or ownership; not intended to be exchanged.
Deck - one or more boards or panels comprising the top or bottom surface of pallet
Deckboard - element or component of pallet deck, oriented perpendicular to the stringer or stringer board.
Deckboard Spacing - distance between adjacent deckboards.
Deckboard Span - distance between deckboard supports (stringers, stringer boards or blocks)
Double-Face Pallet - pallet with top and bottom decks.
Double-Wing Pallet - pallet with top and bottom deckboards extending beyond the edges of the stringers or stringer boards.
Exchange Pallet - pallet intended for use among a designated group of shippers and receivers where ownership of the pallet is transferred with the ownership of the unit load; common pool pallet.
Expendable Pallet - pallet intended for a series of handlings during a single trip from shipper to receiver; it is then disposed; see Shipping Pallet.
Fastener - mechanical device for joining pallet components such as nails, staples, bolts or screws.
Flush Pallet - pallet with deckboards flush with the stringers, stringer boards, or blocks along the sides of the pallet.
Fork Entry - opening between decks, beneath the top deck or beneath the stringer notch to admit forks.
Four-Way Block Pallet - pallet with opening on both pallet ends and along pallet sides sufficient to admit hand-pallet jacks; full four-way entry pallet.
Hand (Wheel) Jack Opening - space provided in the bottom deck to allow pallet jack wheels to bear on the floor.
Hardwood - wood from broad-leaved species of trees (not necessarily hard or dense)
Length - refers to the stringer or stringer board (in block pallets) length; also refers to the first dimension given to describe a pallet i.e. 48" x 40", where 48" is the pallet stringer/stringer board length.
Line Load - weight of a unit load concentrated along a narrow area across the full length or width of the pallet.
Non-Reversible Pallet - pallet with bottom deckboard configuration different from top deck.
Notch - cutout in lower portion of the stringer to allow entry for the fork tine.
Notched Stringer - stringer with two notches spaced for fork tine entry.
Opening Height - vertical distance measured between decks, from the floor to the underside of the top deck, or from the floor to the top of the stringer notch.
Overall Height - vertical distance measured from the floor to the top side of the top deck.
Overhang - distance the deck extends from the outer edge of the stringer or stringer board; wing; lip; distance the unit load extends beyond the deck.
Pallet - portable, horizontal, rigid platform used as a base for assembling, storing, stacking, handling and transporting goods as a unit load, often equipped with a superstructure.
Pallet Dimensions - when specifying pallet size, the stringer or stringer board (block pallet) length is always expressed first; for example, a 48" x 40" pallet has a 48" stringer or stringer board and 40" deckboards.
Pallet Jack - hand propelled wheeled platform, equipped with a lifting device for moving palletized unit loads.
Pallet Life - period during which the pallet remains useful, expressed in units of time or in the number of one-way trips.
Panel Deck Pallet - pallet constructed with composite or structural panel top deck.
Partial Four-Way Stringer Pallet - pallet with notched stringers.
Post Pallet - pallet fitted with posts or blocks between the decks or beneath the top deck; see Block Pallet.
Rental Pallet - pallet owned by a third party, different from the actual pallet user.
Returnable/Reusable Pallet - pallet designed to be used for more than one trip.
Reversible Pallet - pallet with identical top and bottom decks.
Shipping Pallet - pallet designed to be used for a single one-way trip from shipper to receiver; it is then disposed.
Single-Wing Pallet - pallet with top deckboards extending beyond the edges of the stringers or stringerboards with the bottom deckboards flush (if present).
Skid - pallet having no bottom deck.
Slave Pallet - pallet, platform or single thick panel used as a support base for a palletized load in rack-storage facilities or production systems.
Softwood - wood from coniferous or needle-bearing trees (not necessarily soft or low density)
Solid Deck Pallet - pallet constructed with no spacing between deckboards.
Span - distance between stringer or block supports.
Strap Slot - recess or cutout on the upper edge of the stringer or the bottom of the top deckboard to allow tie-down of a unit load to the pallet deck with strapping/banding, also called the banding notch.
Strapping - thin flat bands used to secure load to pallet.
Stringer - continuous, long itudinal, solid or notched beam-component of the pallet used to support deck components, often identified by location as the outside or stringer pallet.
Stringerboard - in block pallets, continuous, solid board member extending for the full length of the pallet perpendicular to deckboards members and placed between deck boards and blocks.
Two-Way Entry Pallet - pallet with un-notched solid stringers allowing entry only from the ends.
Unit Load - assembly of goods on a pallet for handling, moving, storing and stacking as a single entity.
Warehouse Pallet - double-face multiple trip returnable pallet intended for general warehouse use.
Wing - overhang of deckboard end from outside edge of stringer or stringer board.