Wood Boxes - Cleated Plywood, Nailed Solid, Mil-Spec, Export

What is a wood box?

A wood box is a fully enclosed wooden shipping container with six solid walls - top, bottom, two sides, two ends - built from either plywood over a wood cleat frame, nailed solid lumber, or screwed panels. Unlike a wire-bound crate (which has thin veneer walls and perimeter wire) or a wooden crate (which may have open-slat walls), a wood box has solid, fully enclosed sides. The box protects the cargo from dust, light impact, pilferage, and surface damage during shipping.

The primary distinction from a wooden crate is the walls. A crate can have open slats (field-pack produce, nursery stock) or solid walls (mil-spec export). A wood box is always solid-walled, always six-sided, and typically built heavier than an equivalent-sized crate. Wood boxes are the shipping standard for defense cargo (mil-spec and MIL-STD-2073 compliant), aerospace parts, high-value industrial components, firearms and ammunition, and anything requiring NMFC-rated solid-wall shipping protection.

Wood box grades we build

Cleated plywood boxes

The most common grade: plywood panels (typically 3/8 to 3/4 inch) nailed to an internal wood cleat frame (typically 2-by-2 or 2-by-3). Cleated plywood boxes are lighter than solid-lumber boxes, stronger than wire-bound, and economically produced in volumes of 10 to 10,000. Standard sizes range from 12-inch to 120-inch per side.

Nailed solid-lumber boxes

Thicker-walled construction using 1-by-6 or 1-by-8 solid lumber (SPF, pine, or hardwood) nailed to end-grain stile frames. Heavier than cleated plywood but more impact-resistant. Common for high-value aerospace, defense, and heavy industrial shipping.

Mil-spec and MIL-STD-2073 boxes

Boxes built to MIL-STD-2073 (DoD standard for military packaging), MIL-STD-129 (marking), and NQA-1 (nuclear-grade quality) requirements. Full documentation chain, specified species and moisture content, specified fastener schedule, specified strap pattern, and lot traceability. We supply mil-spec wood boxes for defense primes, defense sub-tier, and government shipping lanes.

ISPM-15 export wood boxes

Any wood box crossing international borders carries an ISPM-15 heat-treatment and IPPC stamp. We stamp on at least two faces per box at an APHIS-registered facility.

When to use a wood box vs a wood crate

Choose a wood box when: the cargo is pilferage-sensitive (a box is lockable and screw-closed, a slat crate is not), the cargo is fragile and needs enclosed protection (electronics, instruments, aerospace parts), the shipment is defense or mil-spec, or the shipment is high-value and the receiver expects a sealed, documented package.

Choose a wood crate when: the cargo is heavy and bulky (crates have more structural options), airflow around the cargo matters (open-slat crate), the cargo is wet or iced (crate airflow prevents moisture buildup), or the budget is a hard constraint and the cargo does not need six-wall protection.

For most defense cargo, aerospace parts, electronics subassemblies, and firearm shipping, a cleated plywood wood box is the right answer. For most industrial machinery and oversized cargo, a wooden crate with blocking and bracing is the right answer. The handoff point is case-by-case; we quote both options on request.

Mil-spec and defense wood boxes

MIL-STD-2073 governs US military packaging. The standard specifies: method of preservation (methods 10 through 55, which cover unprotected through hermetically sealed), wood species and moisture content (typically kiln-dried softwood, 20 percent max moisture), fastener schedule (nail-count and spacing by box size), interior supports (cushioning and bracing by cargo type), exterior marking (MIL-STD-129), and documentation chain (lot traceability, heat-treat certification, materials certification).

We build mil-spec wood boxes to MIL-STD-2073 methods 10, 20, 30, 40, and 50 depending on cargo and shipping environment. For NQA-1 nuclear-grade requirements we build with full documentation chain and third-party inspection availability.

Defense primes and sub-tier suppliers typically specify box size, interior bracing, external marking, and lot documentation in the purchase order. We build to the PO and supply documentation on delivery.

ISPM-15 export wood boxes

ISPM-15 is the international phytosanitary standard for wood packaging crossing borders. Any wood box leaving the US for export carries an IPPC stamp branded (not painted) on at least two faces, showing the IPPC wheat-stalk logo, US country code, our APHIS-registered facility number, and the HT (heat-treatment) code.

For defense export, aerospace export, and high-value industrial export, ISPM-15 is a hard requirement. Our wood boxes clear ISPM-15 inspection in Canada, Mexico, EU, UK, Australia, and all other ISPM-15 signatory countries.

What to send us for a quote

Send us: outside dimensions of the box, cargo type and weight, shipping mode (truck, rail, ocean, air), special requirements (mil-spec, ISPM-15, NQA-1, foam cushioning), lot size, and ship-to state or port. Standard reply same business day. Mil-spec quotes may require additional 1 to 3 business days for documentation preparation.

Industries we supply wood boxes to

Common specs

Related wood products

Decision guides

Not sure which product fits? These side-by-side comparisons walk the choice:

Frequently asked questions

What is the difference between a wood box and a wood crate?

A wood box has six solid walls - fully enclosed, no open slats. A wood crate can have open-slat or solid-wall construction. For pilferage-sensitive, high-value, or defense cargo, choose a wood box. For bulky, heavy, or airflow-needing cargo, choose a wood crate. Both can be heat-treated and IPPC-stamped for export.

What is MIL-STD-2073?

MIL-STD-2073 is the US DoD standard for military packaging. It specifies methods of preservation (unprotected to hermetically sealed), wood species, moisture content, fastener schedule, interior bracing, and documentation. We build mil-spec wood boxes to MIL-STD-2073 methods 10, 20, 30, 40, and 50.

Do you supply NQA-1 nuclear-grade wood boxes?

Yes. For nuclear-grade requirements we build with the full NQA-1 documentation chain: materials certification, species and moisture logs, lot traceability, fastener-schedule compliance, and third-party inspection availability. Pricing is quoted per lot with documentation.

What size wood box do you build?

From 12-inch cube up to 120-inch (10-foot) each side for published grades. For project cargo we build larger to drawing. The practical upper limit is highway transport width (102 inches) and loading dock geometry.

Are wood boxes lockable?

The lid is typically screwed on with removable screws, which makes the box re-sealable at destination but not lockable in the traditional padlock sense. For lockable shipping we add steel lock-hasps and padlock holes on the lid. Padlocks are supplied by the shipper.

How are wood boxes marked for export shipping?

Export wood boxes carry ISPM-15 IPPC stamp (branded, not painted) on at least two faces. For defense export, additional MIL-STD-129 marking (national stock number, UN hazard class if applicable, shipper and consignee) is applied. For commercial export we apply standard shipper/consignee markings as specified on the PO.

Can wood boxes be reused for return shipping?

For light-duty cleated plywood boxes: typically one-way (cost of return exceeds box value). For heavy cleated plywood and solid-lumber boxes: often reused in closed-loop defense and aerospace programs. We quote return-and-reuse programs on request.

What is the lead time on wood boxes?

For published cleated plywood sizes: 1 to 7 business days from quote approval. For mil-spec with documentation: 7 to 15 business days. For project cargo custom builds: 10 to 25 business days from drawing approval.

Do you supply the foam cushioning inside the box?

Yes - we quote with and without foam cushioning. For foam-interior boxes we die-cut polyurethane or polyethylene foam to the cargo profile. For instrument-grade shipping we use convoluted or multi-density foam specified by the cargo manufacturer.

Can wood boxes carry a NMFC freight class?

Yes - wood boxes typically fall under NMFC 50 to 85 depending on density and value. Specific NMFC class is determined by the shipper per the cargo and the box together. We supply NMFC-conforming construction on request.

Updated 2026-10-07