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Reference / glossary

Pallet words, plainly defined

Thirty-six terms you will hear from a pallet yard, written the way a yard actually uses them rather than the way a standards document does.

Close view of a single stack of stringer pallets showing deck boards and stamps
48×40 stringer, stamped

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Portland, OR · email only, no phone

A mailbox you actually read — this is how we reply.
US or Canada, 10 digits — format (503) 274-0900.
US ZIP or Canadian code.
Type freely or pick from the list.
Whole number — per month or one-time.

Required fields are marked *. We validate every entry, so a typo in your email or ZIP will be flagged before the request is sent. Read our privacy note.

Letter B

B

Block pallet
A pallet supported by nine solid blocks rather than stringers, giving true four-way entry and better racked performance. More
Bolster
A squared timber used to block and brace loads inside trailers and containers. We re-saw ours from retired stringers. More

Letter C

C

Chamfer
The bevelled edge on a bottom deck board that lets a pallet jack roll on without catching.
Companion stringer
A second timber nailed alongside a cracked stringer to span the damage and restore the load path. More
Core
Low-grade pallet material bought for board and fibre recovery rather than resale. More
Closed loop
A pallet population circulating between known points and returning. Cycle time, not consumption, governs pool size. More

Letter D

D

Deck board
The boards nailed across stringers or blocks forming the top and bottom surfaces of a pallet.
De-nailer
The machine that separates deck boards from stringers and removes fasteners before fibre recovery. More
Diversion certificate
Documentation of measured weight kept out of landfill. Increasingly required in ESG reporting. More
Dunnage
Loose material used to brace, separate or protect freight in transit.
Dynamic load
What a pallet can carry while being moved by a forklift or pallet jack. More

Letter E

E

EPAL
The European Pallet Association, whose brands appear on compliant Euro pallet corner blocks. More

Letter F

F

Four-way entry
Fork access from all four sides. True on block pallets, partial on notched stringer pallets.

Letter G

G

GMA pallet
The 48×40 inch North American standard footprint, named for the Grocery Manufacturers Association. More
Grade A / #1
Premium recycled: no plugs, no repairs, tight tolerance, highest published ratings. More
Grade B / #2
Used, possibly plugged or companion-repaired, structurally sound and fully rated. More

Letter H

H

HT
Heat treated: 56 °C at the core of the wood for 30 continuous minutes, per ISPM-15. More

Letter I

I

IPPC mark
The stamp proving treatment: wheat symbol, country code, facility number and treatment code.
ISPM-15
The international standard governing solid wood packaging used in international trade. More

Letter K

K

Kiln dried (KD)
Wood dried in a kiln, usually to 19% moisture content or below. More stable and lighter.

Letter L

L

Lead board
The outermost deck board at each end of a pallet. Takes the most forklift abuse.

Letter M

M

MB
Methyl bromide fumigation. Being phased out globally; we never produce or upcycle it.
Moisture content (MC)
Water in wood expressed as a percentage of its dry weight. Above 25% expect reduced stiffness. More

Letter N

N

Notch
The cut-out in an outer stringer that gives partial four-way entry. A common damage point.

Letter O

O

One-way pallet
A pallet that ships out and never returns. Specify the cheapest grade that survives the trip.
Overhang
Load extending past the deck edge, which transfers weight into packaging instead of the pallet.

Letter P

P

Pallet collar
A hinged wooden frame that turns a flat pallet into a four-sided box and folds flat for return. More
Plug
A short piece of deck board let into a damaged area. Permitted in Grade B, not in Grade A.
Pool
A managed population of pallets, either a rental operator's or a customer's own.

Letter R

R

Racked load
What a pallet can carry supported only at its edges in beam racking. The number that matters most. More
Remanufactured (reman)
A pallet rebuilt from salvaged components onto a sound frame, re-squared and re-stamped. More

Letter S

S

Static load
What a pallet can hold sitting still on a flat floor. The largest and least useful rating.
Stringer
The timber running the long dimension of a pallet, carrying load in bending. Three is standard.
Stringer plating
A metal plate reinforcing a cracked stringer. Cheaper than a companion and less durable.

Letter T

T

Tare weight
The weight of the empty pallet — a real and rarely audited freight cost. More
Two-way entry
Fork access from two opposite sides only.
PalletLinker published ratings. Quoted back to you in writing on every order. Racked figures assume edge support only, evenly distributed, no overhang.
PalletStaticDynamicRackedTareStack height
48×40 GMA Grade A8,000 lb2,800 lb2,200 lb33–37 lb3 high loaded
48×40 GMA Grade B6,500 lb2,200 lb1,500 lb30–36 lb2 high loaded
48×40 block, 4-way9,000 lb2,500 lb2,400 lb37–41 lb4 high loaded
EPAL / Euro 18,800 lb3,300 lb2,200 lb48–55 lb3 high loaded
42×42 beverage7,500 lb2,600 lb1,900 lb35–39 lb3 high loaded
48×48 drum9,500 lb3,000 lb2,300 lb40–45 lb2 high loaded
36×36 nursery deck4,500 lb1,400 lb900 lb24–28 lb2 high loaded
48×20 half pallet3,000 lb1,400 lb900 lb18–22 lb2 high loaded
Remanufactured 48×406,000 lb2,000 lb1,200 lb30–38 lb2 high loaded
Heavy skid 96×4816,000 lb12,000 lbNot for racking95–130 lb1 high

Questions

What people ask about pallet terminology

What is the minimum order or pickup?

No hard minimum for collection at the yard — come and take four pallets on a Saturday morning if you like. For delivery it is 50 units inside Portland metro and 150 outside it, because the truck has to earn its diesel. Outside our 180-mile fleet radius we quote through partner yards and freight, with the lane itemised.

How fast can this happen?

Standard 48×40 Grade A and B stock: same day for pickup, next day for metro delivery. Block pallets one to three days. Custom builds five to nine business days; engineered runs two to three weeks. Heat treatment is same day for booked batches and 48 hours standard. Written quotes always come back within one business day.

Why is there no phone number anywhere?

Because verbal quotes get remembered differently by different people. Since 2018 every price, date and commitment we make exists in an email you can search and forward. Most customers dislike it for about a month and then prefer it. Everything else happens in person at 3821 NW St Helens Rd, Portland, OR 97210.

Can I inspect before committing?

Please do. Visit the yard by email arrangement — closed-toe boots required, hi-vis provided — or ask for photographs of the actual pool your order would come from. We would rather lose an order than have a customer discover a surprise on their dock.

What documentation comes with it?

A written quote, a signed count sheet by grade, a weight ticket where material is weighed, heat-treatment certificates for treated batches (archived seven years), and a monthly diversion certificate for anything we collect for recycling — measured pounds kept out of landfill, which is the figure your ESG report actually needs.

What will you refuse to do?

Take methyl-bromide fumigated, chemically contaminated or fire-damaged wood. Buy marked rental-pool pallets, which belong to their operator. Promise same-day delivery outside the metro. Or quote a grade we do not think will survive your handling — we will specify downward and explain why.

Reference

Standards, bodies and who decides what

Pallets sit under a surprising number of overlapping rules. Here is who writes them and what they actually govern.

ReferenceWho maintains itWhat it governsDoes it bind a used pallet sale?
ISPM-15IPPC, under the UN FAOTreatment and marking of solid wood packaging in international tradeYes, for export
GMA footprint (48×40)Industry convention, originally grocery manufacturersA footprint, not a quality levelNo — it is a size
EPAL / EUREuropean Pallet AssociationEuro pallet construction, repair and brandingYes, if sold as EPAL
ISO 6780International Organization for StandardizationPrincipal pallet footprints worldwideNo
ASTM D1185 / D1083ASTM InternationalTest methods for pallet performanceNo, but ratings reference them
PDS (Pallet Design System)Virginia Tech / NWPCAEngineering-grade load modellingNo — a design tool
NWPCA uniform standardsNational Wooden Pallet & Container AssociationCommon grade vocabularyVoluntary
OSHA 1910.176US Dept of LaborSafe storage, stacking and housekeepingYes, in your building
Oregon EPR (SB 582)Oregon DEQProducer responsibility for packaging; wood is in scope for reportingIncreasingly, yes
FSMA / food safety plansUS FDAPackaging as a food-contact hazard considerationVia your audit, yes

The gap in that list is the interesting part: no authority grades used pallets. That is why a written supplier specification — ours is published here — is the entire quality system in this industry.

Decision table

Five ways to get a pallet, compared honestly

Including the two we do not sell. Cost index is against a new wooden pallet of the same footprint.

Indicative figures for a 48×40 footprint in the Pacific Northwest, 2026. Rental pool economics vary by contract and are deliberately shown as a range.
OptionCost indexTripsRepairableCarbon per useBest forWatch out for
Grade A recycled45–559–14 then repairYes3.1 kgAlmost everythingColour varies; tare varies by a few pounds
Grade B recycled30–407–11 then repairYes3.1 kgOne-way, floor stacking, closed loopsLower racked rating (1,500 lb)
Remanufactured25–355–8Yes4.8 kgOne-way on a budgetVisibly mixed boards; 1,200 lb racked
New wooden10015–20 then repairYes14.2 kgTight tolerances, audits, odd sizesPays for appearance you may not need
Plastic500–1,00030–100NoHigh embodied, low per-useWash-down, deep freeze, pharmaCracks end its life; not repairable
Rental poolPer-trip feeManagedBy operatorOperator's figureExchange networks, retail mandatesPallets are not yours; losses are chargeable

We sell the first four and supply plastic where a wash-down line genuinely needs it. We do not operate a rental pool, and we will not buy marked pool pallets from you — they belong to their operator. Full comparisons

Lifecycle

Eleven years in the life of one pallet

A composite built from real Passport records. Individual units vary enormously; the shape does not.

  1. Year 0

    Built

    Douglas fir from a mill inside 180 miles. Seven top boards, five bottom, three stringers, helical nails, 2,800 lb dynamic.

  2. Year 0–2

    Trips 1–4

    Beverage route work. Loaded, racked, unloaded, returned. Colour starts to grey; nothing structural changes.

  3. Year 3

    First inspection failure

    A lead board splits at a nail line. Twenty-minute fix: replacement deck board, re-square, re-stamp. Graded B from here.

  4. Year 3–6

    Trips 5–9

    Nursery and agricultural work, where deck gaps matter more than appearance. Spends two winters partly outdoors.

  5. Year 7

    Companion stringer

    A stringer cracks. A second timber is fitted alongside, spanning the crack. Measurably stiffer than before.

  6. Year 7–10

    Trips 10–13

    Local one-way freight. Tare weight has drifted up a pound from accumulated moisture cycling.

  7. Year 11

    Retired from carrying

    Two bottom boards gone, deck softening. Economic repair ends here. Chalk line through the whole pallet.

  8. Year 11

    Dismantled

    De-nailed board by board. Clear boards to the fabrication shop; structural stock back to the repair bay as donor material.

  9. Year 11

    Recovered

    What is left goes through a magnet and a grinder: mulch, bedding shavings, biomass fuel. The nails go to a scrap partner four miles away.

  10. Year 11+

    Still working

    The best boards are now shelving in a bottle shop, carrying its Passport ID burned into the end grain.

Thirteen trips, two repairs, roughly 143 kg CO₂e avoided against building thirteen new pallets, and nothing landfilled at the end. Look up a real record

Next step

Now that we speak the same language

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