40ft Shipping Container – Wind and Watertight, Lock Box

Shipping containers serve a wide range of storage and modification purposes. Presented here is a pre-owned 40-foot shipping container graded to a wind and watertight standard. It offers a substantial enclosed space for secure material storage, job site organization, or as a base for conversion projects, and it has been inspected to ensure the structure stands up to the elements.

Key Features

• Wind and watertight grade: Evaluated so the doors seal properly and the structure is free of large holes or significant gaps, keeping rain and wind out.
• Solid steel construction: Manufactured from COR-TEN steel to withstand stacking and heavy loads, giving a robust shell for securing contents.
• Standard double-swing doors: One end carries lockable double doors with integrated locking bars for wide interior access during loading and unloading.
• Cargo-ready flooring: Original marine-grade plywood floor built to support palletized cargo and heavy equipment.
• Weather-resistant exterior: Keeps its original weather-resistant paint. Surface rust and cosmetic dents typical of pre-used equipment are present but do not compromise wind and watertight integrity.

This 40-foot pre-used container is classified as wind and watertight (WWT) and provides a practical solution for on-site storage, overflow inventory warehousing, or a secure industrial enclosure. It is built from weathering steel, commonly called COR-TEN, which develops a protective patina over time and cuts the need for constant repainting outdoors.

Interior access is through the rear double doors, equipped with steel locking bars and forged steel ratchets that pull the doors tightly against the integrated rubber gaskets. When properly sealed, these parts create the wind and watertight environment.

Internally, a plywood floor sits over a steel cross-member substructure, able to support concentrated loads such as forklifts or loaded pallets when loading from ground level. The walls and ceiling are bare corrugated steel, with tie-down points within the grooves.

Note that this unit is sold "as-is" in used condition and will show signs of prior service, including scratches, dents, and surface rust. It does not, however, have holes that let daylight through the walls, roof, or floor. The wind and watertight classification covers resistance to driven rain and normal air infiltration only; it is not designed for submersion or pressurized water exposure.

Technical Specifications

• External dimensions (L x W x H): 40 ft x 8 ft x 8 ft 6 in
• Internal dimensions (approx.): 39 ft 6 in x 7 ft 8 in x 7 ft 10 in
• Door opening width: approximately 7 ft 6 in
• Door opening height: approximately 7 ft
• Maximum gross weight: 67,200 lbs (rating)
• Tare weight: approx. 8,160 lbs
• Material: COR-TEN weathering steel
• Flooring: 1 1/8 in (28 mm) marine-grade plywood
• Condition: Used (Cargo Worthy)
• Color: Standard shipping container green or brown (original, may vary)

This container is intended for ground-level storage of goods, materials, and equipment in residential, commercial, or industrial settings. It suits a portable storage unit on job sites, a secure inventory room for warehouses, or a structural shell for workshops and small-scale construction projects. It is not intended as a habitable space, nor is it rated for dynamic ocean transport (CSC plate may be expired or absent).

Package Includes

• (1) 40 ft Preloved Shipping Container
• (1) Set of Double Rear Doors with integrated locking gear