Mobile Home Biz | May 5, 2026 | 7 min read
A 28x40 doublewide manufactured home consists of two 14-foot-wide sections, each 40 feet long, joined on site to create a home approximately 28 feet wide and 40 feet long. The combined nominal footprint is 1,120 square feet, with actual interior living space of approximately 1,000 to 1,060 square feet.
The 28x40 is a compact doublewide in the traditional sense: two standard 14-foot-wide sections in the shortest length that accommodates a functional floor plan. For investors, this configuration offers the genuine doublewide construction (marriage wall, two sections, standard 14-foot transport loads) in a compact footprint that fits more lot configurations than longer doublewides and at lower acquisition cost than full-size homes.
Key Takeaways
- A 28x40 doublewide provides approximately 1,000 to 1,060 sq ft of actual interior living space.
- Standard configurations: 2BR/1BA or 2BR/2BA. The 40-foot length limits room count; the 28-foot width provides good proportions.
- Acquisition costs: $18K to $48K depending on era and condition.
- Renovation costs: $7,000 to $13,000 for a complete turnaround.
- Rental rates: $825 to $1,075/month in most markets after renovation.
- Transport advantage: Two standard 14-foot loads, the simplest doublewide transport configuration available.
Why the 28x40 Is Different from 24-Wide Compact Doublewides
The 28x40 uses two 14-foot-wide sections, which is the standard section width that dominated manufactured home production from the 1970s through the 1990s. Key differences from 24-wide compact doublewides:
- Standard section width: 14 feet is the industry standard; most parks and lots are built for 14-foot (28-foot-wide) doublewides
- Standard transport: 14-foot-wide sections transport under standard overwidth permits in most states; no special routing required
- Better lot compatibility: 28-foot-wide homes fit in parks designed for standard doublewides; some parks that accept doublewides specify 28-foot maximum width
- More market familiarity: Contractors, inspectors, and lenders are more familiar with 14-wide section homes
The 28x40 brings these standard characteristics in a compact length, which is the source of its value as an investment configuration. MHI reports multi-section manufactured homes make up the majority of new shipments today.
Dimensions and Living Space
Nominal vs. actual:
- Combined nominal: 28 ft x 40 ft = 1,120 sq ft
- Actual interior width: approximately 26 to 27 ft
- Actual interior sq ft: approximately 1,000 to 1,060 sq ft
The 28-foot combined width provides better room proportions than 14-foot singlewides. A 14-foot singlewide has individual room widths of 12 to 13 feet at most; in a 28-foot doublewide, rooms can span the full 26-foot interior width or be arranged in configurations that create individual rooms of 12 to 14 feet in either direction.
The 40-foot length is the compact element. It restricts the number of rooms that can be arranged in sequence. Most 28x40 doublewides prioritize the living area at one end and bedrooms at the other, with utility, bath, and hallway in between.
Floor Plan Configurations
2BR/1BA (most common in older inventory):
- Two bedrooms at one end, single bath between bedrooms and main area
- Open kitchen, dining, living area at the other end
- The 28-foot width allows wide bedrooms and a generous living space
- Common in pre-2000 floor plans
2BR/2BA (preferred for rental investment):
- Two bedrooms, each with bath access
- Less common in 40-foot floor plans but found in some configurations
- Commands $75 to $100/month premium over 2BR/1BA
3BR/1BA:
- Three smaller bedrooms with a single shared bath
- Possible in the 28-foot-wide 40-foot format but involves tight individual rooms
- Less rental demand than 2BR/2BA in most markets
Acquisition Cost by Era
| Era |
Condition |
Acquisition Range |
| Pre-1990 |
Full renovation |
$12K-$22K |
| 1990-2000 |
Moderate renovation |
$16K-$30K |
| 2001-2010 |
Light to moderate |
$22K-$38K |
| 2011-present |
Good condition |
$28K-$48K |
💡 Did You Know? Total: $7,000 to $13,000 for a complete turnaround.
The 28x40 is less common in the used market than longer doublewides. Most used doublewide inventory consists of 28x60, 28x70, and 32x76 configurations. When a 28x40 appears, the compact length creates a price discount relative to larger doublewides in comparable condition.
Renovation Scope and Cost
Full renovation on a 28x40 doublewide (approximately 1,030 sq ft):
| Item |
Cost Range |
| LVP flooring (980 sq ft) |
$2,940-$5,880 |
| Interior paint |
$900-$1,700 |
| Subfloor repair (if needed) |
$300-$1,000 |
| HVAC replacement (if needed) |
$2,500-$4,500 |
| Kitchen cabinet paint + hardware |
$300-$650 |
| Bathroom fixture update |
$350-$700 |
| Exterior work |
$200-$500 |
| Plumbing repairs |
$200-$800 |
Total: $7,000 to $13,000 for a complete turnaround.
Investment Return Analysis
Rental scenario:
- Acquire: $24K
- Renovate: $9K (all-in: $33K)
- Rent: $900/month
- Lot rent: $375/month
- Expenses: $175/month
- Net: $350/month ($4,200/year)
- Cash-on-cash: 12.7 percent
- Hold 7 years, sell for $22K: IRR approximately 11 percent
Owner-financed sale:
- Acquire: $22K, renovate: $8K (all-in: $30K)
- Sell: $41K with $8,200 down
- Finance $32,800 at 12 percent, 10 years: $472/month
- 5-year total: $8,200 + $28,320 + $24K balloon = $60,520 on $30K. IRR: approximately 24 percent.
Transport and Installation
The 28x40 doublewide transport is the most straightforward of any doublewide configuration:
- Two 14-foot-wide sections, each 40 feet long
- 14-foot-wide sections require an overwidth permit in most states but no escort vehicle
- 40-foot section length is below the 48 to 53-foot towing length limits in most states
- Transport and set cost: $5,000 to $9,000 for most intrastate moves
This is significantly simpler than transporting 16-foot-wide sections (which may require escort vehicles) or 70 to 80-foot sections (which require longer route planning). The 28x40 is the easiest doublewide configuration to transport.
Marriage Wall Inspection
The 28x40 doublewide has a 40-foot marriage wall at the center seam. This is the shortest possible marriage wall on a standard doublewide (40 feet is typically the minimum double wide length that produces a functional floor plan).
A shorter marriage wall means:
- Less surface area for potential failure
- Faster inspection from inside and below
- Lower cost to reseal if issues are found
Inspect the full 40-foot interior center seam, the belly pan junction, and the exterior seam at the roof ridge. Budget $400 to $1,200 for resealing if the inspection identifies problems.
Lot Requirements
A 28-foot-wide doublewide requires:
- Lot width: minimum 35 to 40 feet with setbacks; 60+ feet is typical in parks accepting doublewides
- Lot length: minimum 45 to 50 feet for the home plus front and rear clearances
- The 40-foot length is the shortest standard doublewide length and fits in lot configurations that longer doublewides cannot
The 28x40 is one of the most lot-flexible doublewide configurations available. In parks where lot length limits which doublewides can be placed, the 28x40 fits where a 28x70 cannot.
Mobile Homes for Sale Evaluation
When reviewing mobile homes for sale listings for 28x40 doublewides:
- Confirm two-section construction with a marriage wall
- Verify both HUD tags are present (post-1976)
- Check belly pan on both sections for moisture or damage
- Confirm HVAC covers the full 28x40 footprint
- Inspect end walls for water infiltration
- Ask about marriage wall history if available
28x40 Single Wide Comparison
The 28x40 single wide is a search term that investors sometimes encounter. As with other 24 to 28-foot-wide "single wide" labels, a 28-foot-wide home is always a two-section doublewide by construction. There is no such thing as a standard HUD-code manufactured home that is 28 feet wide and a single section. Any listing using this term is describing the same footprint as the 28x40 doublewide. Investors should apply the same inspection criteria regardless of the label used.
Common Mistakes Park Owners Make
Discounting the 28x40 because of the compact square footage misses the value of the standard section width. The 14-foot-wide sections on a 28x40 fit standard park infrastructure better than 12-foot sections on 24-wide homes. The 28x40 is not a specialty home; it is a standard doublewide that happens to be short.
Not using the short length as a negotiating advantage in acquisition creates overpayment. Sellers often price the 28x40 based on the doublewide label without discounting for the compact square footage. The 28x40 should price below doublewides with 60 to 80-foot lengths, all else equal. Push on price using square footage comparables, not home type comparables.
Forgetting to confirm lot length before contracting creates placement problems. While the 40-foot length is compact, it still requires a lot of at least 45 to 50 feet. Some very small or irregular park lots may not accommodate even this length.
Common Questions Answered
How does the 28x40 doublewide compare to the 24x40 doublewide?
The 28x40 is 4 feet wider (28 feet vs. 24 feet) but has the same 40-foot length. The 28x40 provides approximately 1,000 to 1,060 sq ft vs. 900 to 940 sq ft for the 24x40, a difference of approximately 100 sq ft. The 28x40 uses standard 14-foot sections, which transport under standard overwidth permits and fit in standard doublewide lot configurations. The 24x40 uses 12-foot sections with different lot width requirements. The 28x40 is the more standard of the two configurations and generally more market-friendly.
Is a 28x40 doublewide large enough for a family?
A 2BR/1BA or 2BR/2BA configuration at approximately 1,030 sq ft is adequate for a couple or a small family with one child. It is not well-suited for larger families that need three or more bedrooms, as the 40-foot length constrains the room count. For families with two or more children, a 28x52 or longer doublewide is more appropriate.
What is the transport cost advantage of the 28x40 vs. a standard 28x70 doublewide?
Shorter sections cost less to transport. A 28x70 doublewide with two 35-foot sections costs approximately $7,000 to $13,000 to transport and set. A 28x40 doublewide with two 20-foot sections costs approximately $5,000 to $9,000. The shorter sections also require fewer logistics constraints on the route.
How does financing work for a 28x40 doublewide?
Post-1976 two-section homes with HUD tags qualify for chattel loans from manufactured home lenders. The 28x40 at approximately 1,030 sq ft meets most minimum square footage requirements. Financing access is comparable to other compact doublewides. Owner financing is also a viable exit strategy.
When were most 28x40 doublewides produced?
The 28x40 was produced primarily in the 1970s through the 1990s, when the 14-foot-wide section was the manufacturing standard and some buyers and parks sought the smallest possible doublewide footprint. Production of very compact doublewides declined as larger homes became the norm. Most 28x40 inventory is older vintage, which affects inspection priorities: focus on subfloor condition, HVAC age, and plumbing in pre-2000 homes.
🎯 Key Takeaway: A 28x40 doublewide provides approximately 1,000 to 1,060 sq ft of actual interior living space.
Ready to Grow Your Portfolio?
The 28x40 doublewide is the most straightforward compact doublewide available: standard 14-foot section widths, simple transport logistics, short marriage wall, and compact lot requirements. For operators who want to enter the doublewide market at a lower price point without the specialty logistics of 24-wide compact homes, the 28x40 is the more accessible starting point.
Acquire at the right price, confirm the lot, inspect the marriage wall, renovate completely, and rent to the 2BR tenant profile that consistently fills compact doublewides in park settings. The return profile is reliable when the numbers are right.
Book a Free Consultation with our team to discuss compact doublewide investment strategy and acquisition criteria for your manufactured housing portfolio.
