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Conex Box in Pennsylvania: A Complete Guide for Pennsylvania Buyers
Conex box, shipping container, storage container: the words get used interchangeably. What changes from one Pennsylvania order to the next is the size, the grade and the delivery route.
The word conex (sometimes spelled CONEX) is short for "container express," a term coined by the United States military in the 1950s for a standardized steel shipping container used to move equipment and supplies during the Korean War. The original CONEX boxes were 8.5 feet by 6 feet by 6.8 feet, much smaller than today's intermodal units, but the principle was identical: a stackable, lockable, weatherproof steel box that could move by truck, rail, or ship without unpacking.
By the late 1960s the commercial shipping industry had standardized on 20-foot and 40-foot intermodal containers, the units you see on every cargo ship and rail line today. The military term stuck in everyday speech. Many people still call any large steel storage box a conex, even when the unit is technically an ISO shipping container or a purpose-built storage container.
Whichever name is used, the container is a corrugated steel box, 20 or 40 feet long, with cargo doors on one end.
Conex Box vs Shipping Container vs Storage Container
The vocabulary lines up like this:
Conex box. Originally a military-spec container. In modern use, a colloquial name for any steel shipping container used for storage. Most commonly applied to 20-foot and 40-foot units in residential and contractor settings.
Shipping container. The technical term for an ISO-standard intermodal container. These are the units that cross oceans on cargo ships. They are built to ISO 1496 specifications, which dictate dimensions, lifting points, and structural strength.
Storage container. A general retail and rental term used by ground-storage companies. Often refers to the same intermodal unit, but the phrase also covers purpose-built ground-level containers that have never seen ocean service.
If you are shopping for storage, the difference rarely matters. The same physical unit can be sold as any of the three. What matters more is the size, the condition grade, and the delivery logistics.
Standard Conex Box Sizes
There are three standard sizes:
20-foot standard. Length 20 ft, width 8 ft, height 8 ft 6 in. Interior floor about 19 ft 4 in by 7 ft 9 in, with 7 ft 10 in of height.
40-foot standard. Length 40 ft, width 8 ft, height 8 ft 6 in. Roughly 2,350 cubic feet, double the 20-foot. Best for contractors, farms, and businesses.
40-foot high cube. Length 40 ft, width 8 ft, height 9 ft 6 in. The extra foot of headroom adds about 350 cubic feet of usable space, which matters when you store racked goods or tall equipment.
Specialty sizes (10-foot, 45-foot, refrigerated, double-door, side-opening) exist but are less common.
Common Uses by Industry
In Pennsylvania, containers can serve these industries:
Natural gas and the midstream trades. The work sits in two separate places: the Marcellus and Utica wet gas counties in the southwest, meaning Washington, Greene, Fayette and Westmoreland, and the dry gas Northern Tier of Bradford, Susquehanna, Tioga, Lycoming and Sullivan. Pad crews, water haulers, compressor station operators and pipeline spreads can use containers for tool cribs, spill kits, valves and fittings, because a pad is a long way from a shop and a laydown yard needs a lockable box on it.
Warehousing and distribution along the Interstate 78 and Interstate 81 corridor. The stretch from the Lehigh Valley through Hazleton, Jonestown, Harrisburg, Mechanicsburg and Carlisle is a warehouse and distribution corridor. Third party logistics operators, seasonal fulfillment sites and drayage carriers can use ground storage they control instead of paying per diem on a steamship line's box.
Agriculture, and Lancaster County in particular. Lancaster County farms are built on dairy, poultry, produce and a network of produce auctions at places like Leola and New Holland. Dairy, poultry and produce operations can keep feed, packing supply and equipment in lockable containers.
Steel, specialty metals and heavy fabrication. The Monongahela Valley still runs coke and steel at Clairton, Braddock and West Mifflin, specialty alloy operations continue at Brackenridge and Latrobe, and the fabrication and machine shops that feed them are spread through Allegheny, Westmoreland, Beaver and Armstrong counties. Containers here can hold stock, tooling, fixtures and finished goods staging outside the mill yard.
Coal, in two entirely different forms. Bituminous and metallurgical coal comes out of the large underground longwall complexes in Greene and Washington counties, and anthracite still comes out of Schuylkill, Northumberland, Luzerne and Carbon counties. Both sides of the state can keep parts, belting, bits and shop supplies in containers set at the pit, the prep plant or the equipment yard.
Hardwood timber and wood products. The Allegheny plateau around Kane, Ridgway, St. Marys and Galeton produces black cherry and other hardwoods. Sawmills, kiln operations, veneer buyers and logging contractors can keep containers at landings, mill fence lines and equipment yards through a season that does not stop for winter.
Powdered metal and precision manufacturing in Elk County. The cluster of sintered parts plants around St. Marys, Ridgway and Johnsonburg supports a tooling and machining base. Those shops can store dies, fixtures and raw powder drums outside the plant floor.
Food and snack manufacturing. Plants around Hanover, York, Hershey and Lititz make snack foods and chocolate, and processors in Chambersburg, Middleburg and the Susquehanna Valley add to the list. Seasonal packaging, pallets and promotional stock can need dry, lockable overflow space.
Higher education. Penn State at University Park, Pitt, Carnegie Mellon, Temple, Drexel, Villanova, Lehigh, Lafayette, Bucknell, West Chester, Slippery Rock and Indiana University of Pennsylvania move people and property in and out twice a year. Facilities departments, athletic programs, fraternities, off campus landlords and moving contractors can store furniture and equipment in containers when students move in and out.
Cement, aggregate and quarrying. The Lehigh Valley is where the American portland cement industry started, and plants and quarries still run at Nazareth, Whitehall, Coplay and Bath, with limestone and aggregate operations through the Great Valley, Berks County and the Cumberland Valley. Quarry operators can store parts, screens and conveyor belting close to the pit rather than back at a central shop.
Four season tourism and resorts. The Poconos, the Laurel Highlands and the Lake Erie shore all run on a calendar. Ski areas can store snowmaking gear and lift parts through summer, campgrounds and marinas can store docks and boats through winter, short term rental managers can store linens and furniture between seasons, and the amusement parks at Hershey, West Mifflin, Elysburg, Allentown and Langhorne can pack away a season's equipment in autumn.
Residential construction and remodeling. Framers, roofers, masons, electricians and restoration contractors can keep tools and materials in a lockable container at the job site, on new housing and on the remodeling of older homes.
Common uses:
Tool, chemical, and equipment storage at working yards. Steel walls, lockable doors, and on-site placement make a conex a practical substitute for a built shed, a fenced compound or a temporary office.
Weather-event storage for documents, heirlooms, and inventory.
Construction jobsite storage on long-cycle builds. Project-driven needs where timing, access, and short-term affordability all matter.
Acreage and farm storage. Permanent storage for the things a garage or barn cannot fit.
How to Choose the Right Conex Box
Three questions narrow the decision quickly:
How much space do you need? List what you intend to store. A 20-foot unit works for household goods during a renovation, materials for a residential framing job, or a few pallets of stock. A 40-foot unit doubles that. Compare the list with the container dimensions before you choose.
How clean does the interior need to be? If you are storing tools, equipment, or boxed goods, a used wind-and-water-tight unit is fine. If the unit will be converted to an office, a workshop, or a clean storage space, a one-trip unit saves the cost of repainting and floor refinishing later.
Will it move? If the container will sit on a single property for the whole life of its use, buying makes sense. For a project that ends in a few months, compare the cost of renting from a rental company with the cost of buying. Our rent vs buy guide walks through the crossover math.
How Delivery Works in Pennsylvania
Conex boxes are delivered on a tilt-bed (sometimes called a roll-off) truck. The driver tilts the bed up, and the container slides off onto your placement site. Delivery follows this sequence:
Site assessment. Container One reviews the access route, the placement spot and the overhead clearance before scheduling. A 20-foot delivery needs 110 feet of straight clearance. The truck needs at least 15 feet of height to drive, at least 22 feet of height along the entire unloading path, and at least 10 feet of width. A 40-foot delivery needs 130 feet of straight clearance.
Surface check. Concrete, asphalt, gravel, hard-packed dirt, and grass all work. Soft, waterlogged, or steeply sloped ground may need preparation.
Final placement. The driver sets the container down on the prepared spot.
Container One's Delivery/Dispatch department schedules each delivery after payment and site review. Delivery areas across Pennsylvania:
Philadelphia, the collar counties and the Delaware Valley, served from the Newark depot about 86 road miles up Interstate 95 and the New Jersey Turnpike
The Lehigh Valley, the Poconos and northeastern Pennsylvania, served from the same Newark depot, with Allentown at about 82 miles from the depot
Pittsburgh, western Pennsylvania and the Lake Erie shore, served from the Cleveland depot about 132 miles from Pittsburgh
Permits and Local Rules
Permit rules depend on the municipality. Before ordering, check with your local building or planning department, and verify HOA rules if they apply. The permit guide for this state covers the questions to ask: container permits in Pennsylvania.
What a Conex Box Costs in Pennsylvania
Pricing is ZIP-specific, because delivery is part of the price. Pennsylvania delivered pricing: starting at $2,157 for a 20ft Wind and Water Tight container delivered in Philadelphia. Prices as of 2026-08-06.
If you would rather spread the cost, rent-to-own is available through a third-party partner, My Container Rental.
Frequently Asked Questions About Conex Boxes
Conex is short for Container Express, a United States military term from the 1950s for the reusable steel boxes that moved supplies. The name stuck long after the original program ended, which is why one person says conex box while the freight industry says intermodal container and the storage industry says storage container. For buying purposes the three words describe the same thing.
Yes for buying purposes, and the distinction only matters at a zoning counter. Neither Philadelphia nor Pittsburgh names shipping containers in its zoning code, so a reviewer may measure you against the nearest published category, such as an accessory structure or a shed. That is why describing what is actually being delivered, in feet and square feet, can get you a more useful answer than asking about a word.
There are three standard sizes. A 20ft container is 8 feet wide by 20 feet long, a 160 square foot footprint, and 8 feet 6 inches tall. A 40ft is the same width and height at 320 square feet. A 40ft high cube is 9 feet 6 inches tall on the same 320 square foot footprint. Keep those two footprint numbers in mind when you read a local exemption list, because exemption thresholds can sit at 120, 130, 200, 250 or 1,000 square feet, and which band you land in decides the conversation.
A tilt bed truck needs 130 feet of straight, level run to slide a 40ft container off, and 110 feet for a 20ft, plus clear height overhead because the bed has to rise. In Pennsylvania that turns into three specific questions. What is the width of the street, and of any service alley behind the houses? How steep is the approach? What is overhead, such as service drops, street trees and trolley wire?
Container One supplies and delivers them, and neither depot that serves Pennsylvania sits inside the state. Philadelphia and Allentown are served from Newark, New Jersey, about 86 and 82 road miles out, and Pittsburgh is served from Cleveland, Ohio, about 132 miles out.