How Much Does A Tiny House Weigh? How To Calculate The Weight Of Your Tiny Home

how much does a tiny house weigh

tiny house tipped over on highwayUnderstanding how much a tiny house weighs is a critical step that, if done wrong, can easily lead to disaster, sometimes with deadly results.You don’t want to end up in a situation like with this tiny house where a lot of people were hurt.

The weight of tiny houses is a very important thing to get right. You don’t want to exceed weight limits of your trailer or tow vehicle, and you need to understand weight distribution to ensure you can tow it safely.

How Much Does A Tiny House Weigh? 8,500 lbs., On Average

average tiny house weighs 8500 pounds

A tiny house’s weight really depends on the size of the house itself. The size of a tiny house has a large impact on the weight, obviously.

Below is the average weight for tiny houses of various sizes.

tiny house dimensions

Various Tiny House Weight Measurements

tiny house weight measurements

There are a few numbers you’re going to want to consider when crunching the numbers on your tiny house. These are important to understand for different things like trailer load capacity, towing, and safety.

tiny house trailer weight ratings

Tiny House Dry Weight

The dry weight of a tiny house is how much the house and trailer weighs without any people, water or moveable furniture. This is useful for transporting because you shouldn’t have people or loose furniture in the house while towing. Include built-in furniture and storage into the dry weight.

Gross Vehicle Weight Rating – GVWR

The GVWR is the total weight that the trailer can safely hold. Not to be confused GCWR with includes the weight of the trailer, the weight of the house, and the weight of everything you might put inside.

Gross Combined Weight Rating – GCWR

This is the weight of the tow vehicle, the trailers, the tiny house and the people/contents all combined. This is important because the Department of Transportation has certain rules about the maximum weights of GCWR for operating on roads and highways.

Gross Axle Weight Rating – GAWR

The major factor of a trailer’s capacity is the axles it is built upon. GAWR is what your individual axles are rated at by the manufacturer. Keep in mind this is per axle, so if you have two, three, or four axles, you multiply the rating of one axle by the number of axles to determine the approximate trailer capacity.

I want to caution you that if you upgrade your axles to a higher spec, it won’t mean towing more weight is safe. This is a very common line of thought with DIY tiny house builders and can be dangerous because your trailer frame also needs to be upgraded to handle the additional weight.

Gross Trailer Weight – GTW

This is simply the weight of the materials that the trailer is built from.

Payload Weight Rating

This is what your tiny house trailer can carry after you take into consideration the weight of the trailer itself. So if you have a trailer with a GVWR of 8,000 lbs., but the trailer itself weighs 2,000 lbs., your payload weight cannot exceed 6,000 lbs.

Tongue Weight

Since a trailer is balanced (unevenly, by design) to transfer some of the weight onto the tow vehicle itself, you want to make sure you’re not putting too much weight on the tongue.

In some cases, if you have too much weight on the tongue, but are still under the weight rating of the trailer and tow vehicle, it might just be a matter of shifting the weight distribution around. You should make sure you design your house with the proper weight balance in mind.

how to build a tiny house

How To Calculate The Weight Of A Tiny House

How To Calculate The Weight Of A Tiny House

A tiny house’s weight is made up of the trailer that the house sits on, the materials you build your house with, and the contents of your tiny home.

Tiny House Trailer Weights

Tiny House Trailer Weights

The trailer itself needs to be calculated in when considering the weight of your tiny home. Trailer weights can be found on the manufacturer’s website or spec sheet. This is one of the main reasons that I like buying tiny house trailers new, because then you know exactly what you’re getting.

Here are some typical trailer weights:

Trailer Length Trailer Weight
16 ft. 2,300 lbs.
18 ft. 2,500 lbs.
20 ft. 2,700 lbs.
22 ft. 3,000 lbs.
24 ft. 3,300 lbs.
26 ft. 3,500 lbs.
28 ft. 3,700 lbs.
Trailer Length Trailer Weight
30 ft. 3,900 lbs.
32 ft. 4,100 lbs.
34 ft. 4,400 lbs.
36 ft. 4,700 lbs.
38 ft. 5,000 lbs.
40 ft. 5,300 lbs.
42 ft. 5,700 lbs.

The upper limit of your tiny house weight is determined by your trailer’s weight rating, but just because you trailer is rated for a certain weight doesn’t mean you can or should go all the way up to that limit.

tiny house building checklist

Weight Of Tiny House Building Materials

Weight Of Tiny House Building Materials

It can be complicated to figure out exactly how much a tiny house will weigh when you’re designing your tiny home. Here are the weights of some common building materials (listed in lbs.):

Framing Lumber and Sheathing:

2×4 @ 16” o.c = 1.1 plf
2×6 @ 16” o.c. = 1.7 plf
2×8 @ 16” o.c. = 2.2 plf
2×10 @ 16” o.c. = 2.9 plf
2×12 @ 16” o.c. = 3.5 plf
5/8″ plywood = 1.8 psf
3/4″ plywood = 2.3 psf
1 1/8″ plywood = 3.4 psf

Siding:

Wood board = 1.5psf
Board & Batten = 2.9 psf
Vinyl Siding = 0.52 psf
Counter tops:
Granite = 20 psf
Marble = 19 psf
Laminate = 4 psf
Butcher block = 7 psf

Flooring:

2″ (nom.) decking = 4.3 psf
1″ (nom.) hardwood floor = 4.0 psf
Linoleum = 1.5 psf
3/4″ ceramic tile or quarry tile = 10.0 psf

Roofing:

20 gage metal deck roofing = 2.5 psf
18 gage metal deck roofing = 3 psf
0.05” thick polyvinyl chloride polymer membrane = 0.35 psf

Insulation:

1” fiberglass batt insulation = 0.04 psf
1” loose fiberglass insulation = 0.14 psf
1” rigid insulation = 1.5 psf
Blowing wool insulation R-38 (16” deep) = 0.62 psf
1″ Glass wool = 0.3 psf

Windows:

Skylight: metal frame w/ 3/8” wire glass = 8 psf
Windows: glass, frame and sash = 8 psf

Other Materials:

3/4″ gypcrete = 6.5 psf
1/2″ gypsum board = 2.2 psf
5/8″ gypsum board = 2.8 psf
Plaster (1″ thick) = 8.0 psf
Acoustical tile = 1.0 psf
1″ Cement plaster = 12.0 psf
1″ Rigid fiberglass = 1.5 psf

plf = per linear foot       •       psf = per square foot

Weight Of Tiny House Contents

Weight Of Tiny House Contents

The final piece that will make up your tiny house weight is the things that go inside your tiny house, including furniture, clothing, and even water. People often forget to consider this, but it can really add up.

Weight Of Furniture

Furniture is something that can add a lot of poundage to your tiny home. Consider too that you might decide to change your furniture in the future, so give yourself some breathing room in case any new furniture is heavier.

For example, when I first built my house, I started with a single sectional piece that was about 75 lbs., but later upgraded to a much nicer recliner that was around 230 lbs. So make sure you have some wiggle room built into your calculations

Item Weight (lbs)
Flat Screen TV (small) 35
Flat Screen TV (medium) 56
Flat Screen TV (large) 140
Entertainment Center (small) 210
Entertainment Center (large) 420
TV Stand 175
Three seat sofa 287
Four seat sofa 350
Sectional sofa (4-piece) 1050
Sectional sofa (5-piece) 1295
Loveseat 224
Armchair 105
Recliner 105
Rocker 84
Item Weight (lbs)
Futon 210
Coffee table (small) 70
Coffee table (large) 105
End table 105
Ottoman 35
Cabinet (small) 70
Cabinet (medium) 140
Cabinet (large) 245
Cabinet (curio) 70
Glass cabinet 140
Desk (small) 154
Desk (large) 245
Bookcase (per section) 140
Bookshelf (small) 70
Item Weight (lbs)
Stereo 28
Speakers (standard) 35
Speakers (large) 70
Blinds/Shades 21
Curtains/Rods 28
Area rug (small) 35
Area rug (large) 70
Clock 35
Grandfather clock 140
Floor lamp 21
Table lamp 14
Mirror (small) 21
Mirror (large) 49
Window A/C unit 40

Weight Of Clothes:

You might be a tiny houser that loves shoes or has a large wardrobe, so you’ll want to account for that weight too. I personally keep a very simple wardrobe, which really consists of a uniform.

weight of clothing

Weight Of Water Tanks And Hot Water Heaters

Water is heavy, 8.33 lbs. per gallon to be exact, which can add up when you really think about how much water you use in a day. Many people want to have a water storage tank so they can go off the grid. Others are trying to decide which water heater is right for them. For either of these options, weight can be a big deciding factor.

  • Water in pipes: 2.7 lbs. per foot of water line
  • Water in tanks: 8.33 lbs. times the volume of your tank
  • Water in tanked hot water heater: 8.33 lbs. times the volume of your hot water tank
  • Water in tankless hot water heater: 5 lbs.

why you should consider a tankless hot water heater

Tiny House Weight Examples

Tiny House Weight Examples

To put these weights into perspective, here are some popular tiny houses that you might have seen around and their weights.

You’ll see that some of these houses are heavier even though they are on shorter trailers than others. Wall height, cladding materials, windows and other features all impact the weight of a tiny home.

10-Foot Tiny House 3200 lbs

10-Foot Tiny House – 3,200 lbs.

16-Foot Tiny House 5400 lbs

16-Foot Tiny House – 5,400 lbs.

18-Foot Tiny House 8000 lbs

18-Foot Tiny House – 8,000 lbs.

20-Foot Tiny House 8800 lbs

20-Foot Tiny House – 8,800 lbs.

24-Foot Tiny House 10500 lbs

24-Foot Tiny House – 10,500 lbs.

20-Foot Tiny House 9800 lbs

20-Foot Tiny House – 9,800 lbs.

35-Foot Tiny House 13500 lbs

35-Foot Tiny House – 13,500 lbs.

26-Foot Tiny House 11500 lbs

26-Foot Tiny House – 11,500 lbs.

34-Foot Tiny House 14000 lbs

34-Foot Tiny House – 14,000 lbs.

how to build a tiny house

Tiny House Trailer Weight Distribution

Tiny House Trailer Weight Distribution

The weight of your tiny house is only part of the picture — how you distribute that weight is also a really big deal.Balancing your weight side to side and front to back is critical. Having the right amount of weight on the tongue is important too, as too much or too little can be dangerous.

Here is a great video demonstrating this:

This is a place where you’re going to want to loop in a professional engineer to calculate the load balances for you. You yourself are taking on the liability and responsibility of building a tiny house, (you get the idea, I’m not responsible) so do your homework.

Typically, you’re shooting to have the tongue weight be 10-15% of your tiny house’s Gross Trailer Weight. No more, no less. You’ll commonly see people suggest that you want 60% towards the front of the trailer, and while this is a good rule of thumb, sometimes having 60% of the weight forward will result in a tongue weight higher than the 10-15%, which is dangerous.

Your Turn!

  • What trailer weight rating are you shooting for?
1 Comment
  1. Bravo! This is a fantastic article and should be part of a test that any tiny house builder (including DIY) should take before hitting the road. Our ThinHaus models are actually very close to these numbers. The trailers and frame (steel) are a little lighter, but the sheathing and insulation make up for this. Word or advice: Always go with a bigger truck than you think and keep your speed down. Better to get there a little later than not at all.

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