Prefab Homes From China vs US Modular

The listings cluster into three piles. Expandable containers that fold out from a 20-foot or 40-foot envelope. Capsule or “space” pods with a bathroom core. Light-steel villas and kit frames that look more like a house in the CAD. None of those are automatically a US modular home. In the US that word means sections built to state or local code, inspected in the plant, and labeled before they roll. Prefably’s prefab vs modular guide is the longer version of that split.

Prices move with insulation, bathrooms, and whether the order is one unit or twenty. Export listings Prefably checked in 2025 quoted 40-foot expandables around $5,999 each for small quantities, $5,666 in the teens, and $4,999 in volume, with a $20,000 “sample” price on the same page. Other exporter writeups put a more finished 40-foot expandable in the $12,000 to $22,000 FOB band. Treat those as catalogs, not bids. Ask for the steel thickness, the insulation spec, 110/120-volt drawings, and a video of *your* unit on the line before anyone gets a deposit.

There is a second Chinese industry that does not live on those $5,999 tiles. Some plants sell light-gauge steel systems to developers and talk ICC-ES and country-specific engineering. That is closer to a real building system. It is also not the short-form video house. If a US company is quietly buying from China, it is more often this channel, or a trading company sitting in front of a factory, than a one-click capsule.

In September 2025 Prefably asked a Guangdong plant for a written quote on an assembled 11.5 × 3.3 m capsule, 38 square meters, loaded in a 40-foot flat-rack. The shell was $18,571 EXW. Full options (air conditioner, kitchen, Murphy bed, stair, second-floor balcony, projector) added $8,930. House plus options: $27,501. The quote is explicit: taxes and shipping are not included. Freight is collect.

Days earlier, a different marketplace seller sent a chat estimate on the same size class: an 11.5-meter capsule, one bedroom, one bathroom, one living room, about $21,000 to $22,000, plus $9,000 to $10,000 shipping to a US port, $30,000 to $32,000 total to the pier. That message was an approximation before details. The written sheet is the tighter number. Neither figure is a US house.

Add what both quotes left off. If the entry still sits under HTS 9406 and Section 301 still adds about 25% on Chinese-origin goods in that heading, duties on a $27,501 declared capsule are often in the $7,000 to $8,000 band (MFN plus 301). Ocean freight in the $9,000 to $10,000 chat range puts you around $45,000 toward the US port, still before inland trucking, a crane, a pad, a US electrician, and a building official. Prefably is not the broker on this SKU. Those duty dollars are a worksheet, not an entry summary.

In the US there is no single floor where you browse every modular plant, compare quotes, and message ten factories before lunch. You search, you call a dealer, you land on a plant website that may not even list a price. Prefably is a directory of those companies. It is not a bidding market. China is the opposite. The exporters sit on Alibaba. That concentration is the advantage, and also why buyers get burned: the same place that has real plants has trading companies wearing a factory costume.

Knowing that platform is a skill. How to read a Gold Supplier badge without treating it as a UL listing. How to send the same spec to five sellers so you can see who is guessing. How to negotiate without looking like someone who will pay the first number. Chinese suppliers can become excellent long-term partners. The ones who last are usually the ones treated as a factory relationship, not a cart checkout. That takes practice and research.

American business culture likes a short email, a PDF, a signature, a Friday ship date. A lot of Chinese export sales still run on WeChat, relationship, and a no that never quite says no. Face matters. A public accusation in the message thread can kill a deal that a private correction would have saved. Language is the other tax. The listing English is often better than the engineering English. Specs drift in translation: steel thickness, fire rating, a “UL” that is actually a lookalike mark. A bilingual drawing set and a US electrician on the call still belong in the process.

Alibaba has also added tools that change how search works. AI Mode is useful as a search and inquiry layer: describe the unit instead of guessing keywords, and it can start conversations with more context than typing “container house” into the old box. Separate from that, Alibaba International has an agent platform called Accio (Accio Work). Plug it into the marketplace, prompt what you need, and it can spin up specialized agents that find suppliers, message several at once, chase answers across time zones, and negotiate inside the limits you set. Alibaba says the agent still cannot close the purchase order or send payment without you. Treat it as a fast intern who does not know the destination county inspector. Do not let it wire a deposit.

When Prefably talks to companies in the directory, the product that closes is usually the boring one. A modular plant builds to the same residential code as the house next door, then trucks sections that are mostly finished. A manufactured-home plant builds to the HUD Code. Different label, different loan. Same idea: a third-party inspector was in that factory, and a US company will still exist if there is a problem.

Census numbers are not exciting, which is the point. The Manufactured Housing Survey (via FRED) put the average new manufactured home at $137,500 in March 2026: about $90,700 single-section and $164,200 double. That is the home, not the land. For state-code modular, the ranges Prefably uses are about $50 to $100 per square foot for the factory box and $80 to $160 all-in in most markets. The modular cost guide walks through why the lot can blow that up.

There is no statistically clean sample. There are public threads, a few itemized cost stacks, and electricians who opened the walls. Buyer threads are mixed: some people got a box, some got a different spec than they ordered, a lot never completed a purchase. US electricians talking about imported Chinese ADUs are blunter. The wiring is often 220 volt / 50 hertz logic in a 120/240, 60 hertz country, and it is frequently not NEC practice.

One public 2025 project is useful because it is itemized. A US importer put two Chinese prefab houses on a lot as rentals. Published numbers landed at $118,780 all-in. The factories were $15,600 each. Then freight, taxes, septic, a move, grass, and a $7,000 scam. That is about $59,000 per cabin, and it is still two imported boxes, not two HUD-labeled homes. The scam line is the one to stare at. Everything else can go right and the wire can still land on the wrong WeChat account.

The number that matters is landed cost, not the FOB sticker. Most marketplace prefab tiles are FOB: the box at the Chinese port. A DDP quote would mean delivered and duty-paid toward the US site. Treat a DDP claim as something a broker still has to verify. Prefab buildings usually sit under HTS 9406 at the USITC. Wood is 2.6% MFN (9406.10). Steel modular units are 2.9% (9406.20). Chinese-origin goods have often also owed Section 301 additional duties around 25% on this heading. Exporter blogs still say “duties 0%.” That is how a spreadsheet blows up. Rates move. Prefably is not a customs broker. Pay one to classify the exact SKU before celebrating a $5,999 FOB.

Freight is the other line people skip. A 40-foot box China to the West Coast has been a few thousand dollars in quiet months and worse when the market spikes. East Coast costs more. Then terminal fees, a broker, inland trucking of something that may need a flatbed and a crane, and demurrage if you are not at the port. Marine insurance is cheap compared to a crushed expandable.

The pattern is not mysterious. A trading company poses as the factory. The Alibaba storefront is real enough. The workshop in the video is someone else’s. You pay 30 to 50 percent by T/T to a personal account “because the company account is delayed.” The unit that ships is a thinner steel, no insulation, 220-volt panels, missing glass. Trade Assurance helps if you stayed inside Alibaba’s rails. It does not help if you hopped to WhatsApp and Western Union.

The same checklist applies when vetting a plant. Video call from inside the shop, not a hotel lobby. Business license that matches the bank account name. A deposit in escrow or Trade Assurance, never the full amount. A packing list and photos of *your* serials before stuffing. A US electrician looking at the panel drawings before the container leaves. If they will not do those things, they are not the supplier.

US operators do buy, and some keep buying: glamping, workforce housing, a backyard rental in a county that shrugged, a developer who wanted a steel kit and hired a US engineer to restamp it. Alibaba reviews on those storefronts are not worthless. They are also not a substitute for walking the line. Screenshots of “Gold Supplier, 200 orders, US buyers” are more useful when they show repeat orders from the same company name, not five-star blurbs.

For a primary residence that needs a mortgage, start with a US modular or HUD-code plant first. That is the product Prefably exists to help people find, and Prefably still does not sell the inquiry as a lead.

For a cash cabin, an ADU experiment, or a small hospitality cluster, China can make sense if it is treated as manufacturing, not shopping. Importer of record. A third-party inspector the destination state already knows, in the plant during production. Electrical designed for the US before stuffing. One pilot, then a SKU. Do not sit on a yard of unlabeled boxes and hope Facebook Marketplace is a housing company.

Prefably is a US directory. The team also works both sides of this comparison: talking with local American builders every week, and sourcing and visiting manufacturers in China. If the goal is to order from China, or to tell a real plant from a trading company, write. Include the state, the use (house, ADU, rental, glamping), and a budget that includes freight and duties, not just FOB.

Use the contact form (pick China sourcing) or email hello@prefably.com. LinkedIn is fine too: Dmitry Bilchenko. Prefably is not a licensed customs broker and will not take a wire to “handle the import” as a black box. The team will look at the factory with you and say what not to sign.