Modular home shell prices typically range from $60 to $120 per square foot, or about $90,000 to $180,000 for a 1,500-square-foot shell. The final quote depends on what the manufacturer includes, the home’s design and finish level, freight distance, crane access, and local labor.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Factory-built shell package | $60/sq ft | $85/sq ft | $120/sq ft | Structure and exterior scope varies |
| 1,500-sq-ft shell package | $90,000 | $127,500 | $180,000 | Before site work and foundation |
| Delivery and crane setting | $8,000 | $16,000 | $30,000 | Distance, access, and crane time matter |
| Shell with foundation and set | $120,000 | $175,000 | $250,000 | Excludes most interior finish work |
What a 1,500-Square-Foot Modular Shell Usually Costs
A basic factory-built shell generally costs $90,000 to $180,000 for 1,500 square feet, with a common midrange estimate near $127,500. This assumes a standard rectangular plan, ordinary roof design, midrange structural materials, and a shell package that includes wall and roof framing, sheathing, and at least some exterior enclosure components.
For a quick budget, use $85 per square foot for the factory package, then price delivery, setting, foundation, and unfinished site work separately. Shell is not a standardized package: one supplier may include windows, exterior doors, roofing, and siding, while another may quote only the structural modules.
Some manufacturers quote the factory package alone; others bundle transportation and crane setting. A quoted $85 per square foot can therefore be materially different from another supplier’s $85 rate. Ask for an inclusions list and compare the same scope before treating either figure as a complete shell price.
Assumptions: U.S. midrange labor and materials, standard access, no unusual engineering, and a shell without completed interior finishes.
How Framing, Freight, and Crane Work Shape the Quote
Factory construction is only one part of the shell budget. The table below shows typical planning ranges for a 1,500-square-foot project; costs vary with design, location, and which items the supplier includes in its package.
| Cost item | Typical range | Common pricing basis | What changes the charge |
|---|---|---|---|
| Factory shell materials and assembly | $90,000-$180,000 | $60-$120 per sq ft | Module count, structure, windows, roof, siding |
| Delivery and transport | $4,000-$15,000 | $5-$12 per loaded mile, sometimes bundled | Route, distance, permits, escort vehicles |
| Crane and module setting | $4,000-$15,000 | $1,500-$3,500 per crane day | Module weight, reach, crew and setup time |
| Foundation | $15,000-$40,000 | $10-$27 per sq ft of home area | Soil, slope, foundation type, excavation |
| On-site labor and connections | $8,000-$25,000 | $75-$125 per worker hour | Seams, weatherproofing, utility coordination |
| Permits and engineering | $2,000-$10,000 | Project fee or local review charges | Jurisdiction, site plan, structural revisions |
These rows are budget categories, not charges to add automatically. For example, a supplier may include setting or structural engineering in the package, and a local contractor may quote foundation and site labor together. Review the line-item quote to avoid counting delivery, setting, or engineering twice.
On-site labor can be estimated with . A four-person crew working 10 hours at an effective blended rate of $90 per hour represents about $3,600 in crew labor, before equipment, travel, or subcontractor charges.
Why Module Size, Roof Shape, and Window Specs Change Prices
Home size is the clearest pricing driver, but square-foot rates do not scale perfectly. Smaller plans can cost more per square foot because fixed engineering, transport, and setup charges are spread across less area. Larger homes may also need additional modules, a larger crane, or more complicated on-site connections.
Module width affects transport. Standard road-legal widths are generally easier to move than oversized loads; modules wider than roughly 14 feet may require special routing, permits, or escorts depending on state rules. A long or remote route can add thousands of dollars even when the factory price stays the same.
Design choices that increase module dimensions or lifting complexity can raise both freight and setting costs. A simple gable roof is usually less costly to manufacture and assemble than multiple roof pitches, dormers, or intersecting rooflines. Adding one or more complex roof breaks can increase engineering and field-seaming work, though the amount depends on the supplier’s design.
Window and door packages also matter. Basic standard-size openings may be included, but upgraded glazing, oversized units, numerous openings, and custom exterior doors can add several thousand dollars. Ask whether the shell quote includes the actual window units, installation, flashing, and exterior trim, not just rough openings.
Site conditions can push the total beyond the home package. A sloped or rocky lot, limited truck access, overhead utility lines, or a long crane reach may require grading, specialty equipment, or extra crew time. Quotes that assume a level, open, truck-accessible site should not be compared directly with bids that include site preparation.
Which Shell Features Are Included Before the Modules Arrive
“Shell” can refer to different completion points. A structural shell may consist mainly of framed modules and sheathing. A weather-tight shell may add roofing, windows, exterior doors, house wrap, and siding. Some suppliers deliver modules with rough electrical or plumbing already installed, while others leave those systems for local trades.
Before comparing bids, request a written scope that states whether the package includes exterior cladding, roofing, insulation, vapor control, windows, exterior doors, stairs, and module seam finishing. Clarify whether the factory installs each item or whether local contractors complete it after setting.
The most useful comparison is the price for the same finished boundary, not the supplier’s label for “shell.” A lower factory quote can become the more expensive option if roofing, windows, insulation, or weatherproofing must be purchased separately. Likewise, a more complete package may still exclude foundation, utilities, interior drywall, cabinets, flooring, heating and cooling equipment, and final inspections.
Ask for exclusions as well as inclusions. In particular, determine who pays for transport permits, crane standby, temporary road improvements, damage during unloading, and weather protection between delivery and completion. These details can prevent a small base quote from turning into an unexpected on-site bill.
Three Modular Shell Budgets for Different Project Sizes
The following examples use illustrative national ranges, not fixed market prices. Each assumes standard residential materials and a reasonably accessible site; regional labor, transport distance, and package contents can change the total.
| Example | Factory shell | Delivery and set | Foundation and site work | Estimated combined total |
|---|---|---|---|---|
| 1,000 sq ft, compact plan | $65,000-$95,000 | $9,000-$18,000 | $18,000-$35,000 | $92,000-$148,000 |
| 1,500 sq ft, standard plan | $90,000-$180,000 | $12,000-$25,000 | $20,000-$45,000 | $122,000-$250,000 |
| 2,000 sq ft, upgraded exterior | $150,000-$240,000 | $16,000-$32,000 | $25,000-$55,000 | $191,000-$327,000 |
A 1,000-square-foot plan may have a higher per-square-foot rate because delivery and setup do not shrink in proportion to floor area. The 2,000-square-foot example assumes more exterior upgrades and potentially more complex module handling; it does not include completed interiors or utility extensions.
Use the combined total only as a shell-stage budget, not as the cost of a move-in-ready home. For a comparison, request separate prices for the factory package, transport, crane setting, foundation, local assembly, and site preparation. Then add any omitted exterior items before evaluating the bids.
Regional Freight and Labor Rates Across the United States
Factory prices can be relatively consistent within a manufacturer’s sales territory, but delivery distance and local trades create regional differences. A project near a production plant with straightforward highway access may land near the lower end of freight estimates. A rural parcel several hundred miles away, or a site requiring a restricted route, can push delivery and setting costs 20% to 50% above a nearby project.
Labor and foundation prices also vary. High-cost coastal metros and areas with limited subcontractor availability may run roughly 10% to 25% above a national midrange budget. Many inland and lower-cost markets may fall 5% to 15% below that midpoint, although remote locations can reverse the savings through travel, mobilization, and equipment charges.
These percentages are planning ranges rather than universal regional multipliers. State transportation requirements, building codes, soil conditions, and local demand can outweigh broad regional averages. Compare local bids for foundation and assembly rather than applying a single national labor rate to every project.
Ask the manufacturer for the actual shipping origin and the assumptions behind its delivery estimate. A quote based on a nearby plant may change if production is assigned elsewhere. Confirm whether the price includes transport permits, escort vehicles, tolls, fuel adjustments, unloading, and a second trip if modules cannot be set in one day.
How Crane Access and Site Preparation Add Charges
Crane and delivery pricing depends on how quickly the crew can unload and place the modules. A straightforward site may need one crane day, while a narrow lot, long reach, or multiple modules can require additional setup or equipment. A second crane day can add around $1,500 to $3,500 for the crane alone, before extra crew, standby, or rescheduling charges.
Temporary access can cost more than expected. A truck route that needs gravel, tree trimming, a culvert upgrade, or removal of overhead obstacles may require $1,000 to $10,000 or more in preparation. Extensive grading, retaining work, or difficult excavation is not covered by that modest range and should be priced by a local site contractor.
Confirm that the delivery route and crane placement have been checked before the modules leave the factory. The site plan should identify truck turning space, overhead clearance, ground bearing capacity, crane reach, and a staging area. If a delivery crew arrives and cannot safely unload, standby and return-trip charges may apply.
Foundation work is another frequent scope gap. A slab, crawl space, or basement can have very different costs, and soil testing or engineering may be required before a firm quote is possible. Check whether excavation, drainage, anchor bolts, foundation inspections, and final grading are included in the contractor’s number.
When a Modular Shell Saves Money Compared With Turnkey
A shell package can reduce the factory contract price by leaving interior finishes and some trades to the owner or local builder. That can work when local labor is available and the project has clear construction management. It does not automatically make the finished home cheaper: separate trades, delayed scheduling, material waste, and warranty coordination can narrow the difference.
Turnkey modular pricing often bundles more work, but the included scope varies just as much. Compare a shell bid with a turnkey quote only after listing the missing items: insulation, drywall, electrical and plumbing completion, heating and cooling, cabinets, flooring, painting, appliances, utilities, and final site work. Do not assume the turnkey figure includes land or every connection.
Choose shell delivery for scope control, not on the assumption that unfinished work is free. A local contractor can price the remaining labor before the factory order is signed. If the shell leaves many trades for later, compare the total cost and expected schedule with a more complete factory package.
DIY work can lower labor expense for appropriate tasks, but structural connections, weatherproofing, electrical, plumbing, and code-required work should be assigned to qualified professionals when required by local rules or the project design. A missed flashing detail or unfinished module seam can lead to water damage that costs more than the initial labor savings.
Lower the Modular Shell Price by Locking Scope Early
A compact, rectangular floor plan with standard module dimensions can reduce factory complexity, transport complications, and field assembly time. Keeping rooflines simple and choosing standard-size windows and doors can also help control the quote without compromising the basic structural package.
Get at least three bids using the same drawings, specifications, and delivery assumptions. Ask each supplier to separate factory materials, transport, crane setting, and excluded work. Then obtain local quotes for foundation and site preparation. A line-by-line comparison makes it easier to spot a low bid that leaves expensive work out.
Fixing the scope before ordering is usually more reliable than trying to cut costs after production begins. Changes to window placement, module dimensions, or structural layout after engineering can trigger redesign fees, production delays, or rework. Confirm the site plan, access, foundation design, finish boundary, and utility locations before approving final drawings.
Schedule with enough lead time to avoid paying for rushed delivery or an emergency crane booking, and coordinate the foundation so it is ready when modules arrive. Avoid paying for premium features that do not solve a specific need, but do not remove essential weather protection or structural work simply to reduce the initial package price. Compare the resulting total through completion of the shell, not just the factory invoice.