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Old 01-03-2018, 06:50 PM   #1
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Helpful Dimensions for Floorplan Design

I was having a great deal of trouble designing a floor plan until I took a little bit of time and looked up standard sizes for things. Let me know if this is helpful.
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Old 01-03-2018, 06:51 PM   #2
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And, here it is posted as text. The formatting is all screwed up, but at it least it is searchable. All dimensions are in inches.

Bed Sizes Width Length
King 76 80
Cal King 72 84
Queen 60 80
Full 54 75
Full XL 54 80
Twin 38 75
Twin XL 38 80
Cot 30 75
Smallest standard RV Mattress 28 75

Mattress Thickness Height
Minimum Recommended 4.5
Typical RV Mattress Thickness 8
Extra-Thick RV Mattress 13 (10-14” most common size for coil mattresses)

Bed Height (top of mattress) Height
Platform Bed Height 18
Standard Bed Height 25
Antique Bed Height 36

Bunk Headroom Height
Minimum Recommended 24
Standard Headroom 30
Adult Sit-up headroom 36

Full Bathroom Width Length
Standard Guest Bathroom 96 60 (Bathtub, toilet, sink)

Half Bath Width Length
Minimum House Code 60 30 (toilet and sink)
ADA Portapotty dimensions 58.5 58.5 (toilet and urinal)
Portapotty Dimensions 47 43 (toilet and urinal)
Minimum House Code 36 21* *in front of toilet
Traditional Plane Lavatory 34.5 41 (includes mini-sink)
Newer Plane Lavatory 24.5 39.75 (includes mini-sink)

Toilet (Commode) Width Depth
Standard Home Toilet 20 27-30
RV Toilet 14-19 17-23

Shower Width Length
Minimum House Code 30 30
Standard 36 36

Bathtub Width Length
Standard 30 60
Small RV 24 36
Oval 41 60
Whirlpool 32 60

Door Width
Standard 36
Minimum House Code 32
RV Narrow 24

Hallway Width
Minimum House Code 36
Comfortable 30
Narrow 24
Comfortable Cooking Workspace 48
Minimum Cooking Workspace 30

Furniture Width Depth Height
Dresser Drawers 17-36 20 5
Standard Dresser 60 20 30
Nightstand 20-40 20 26-28
Book shelf 24-36 10 – 12 6 – 24

Clothes Rod
Standard Height 60
Minimum Height 40 (can be mounted at 40” and 80” for full-height closet)

Walls Width
Standard House Wall (2x4s) 4.5 (3.5” 2x4 + 2x .5” drywall)
Steel Tubing Framed 2 (1” tubing + 2x .5” wood)
Wood (on edge of bunks, etc.) 0.5 (plywood or similar)

Kitchen Width Depth Height
Counters 24-25 36 (minimum 12” wide recommended next to stove and fridge)
High Counter 24-25 42
Kitchen Cabinets 12 – 36 12 12 – 42 (typically 30” tall and 18” above counter, 30” above stove)
Standard Kitchen Table 36-40 48-78 29-30 (48” long for 4 people, 78” for 8 people)
RV Kitchen Table 24-37


Seating Width Depth Height
Chair (Seat Only Dimensions) 16-20 15-18 16-18
Couch (Seat Only Dimensions) 24 18-22 14-18
Bar Stool (Seat Only Dimensions) 15-18 12 – 16 28-30 (height is 12-15” below bar)
Love Seat 56 – 60 33-40 (24” wide per person + armrests)
Full Sofa 84 – 90 33-40 (24” wide per person + armrests)
Chair 24-28 24-36
Dinette (two benches + table) 72-75 36 – 48 33

Sink Width Depth
Standard Kitchen 33 22
Standard Bathroom 19-24 16-23
Bar Sink 16 16
Small RV Single Sink 15 15

Appliances Width Depth Height
Microwave 19-30 15-24 11 – 20
Minifridge 15-28 21-24 28-34
Standard Oven 30 25 36
Typical RV Oven 20-21 20 20-34
Ultra-Narrow Oven 17
Standard Dishwasher 24 21-24 30-34
Slimline Dishwasher 17.5
Washing Machine 24-27 22-34 29-34
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Old 01-03-2018, 07:54 PM   #3
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That's an awful lot of stuff to put in a bus. For me it's been a matter of what I can fit through the chair lift door.
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Old 01-03-2018, 07:57 PM   #4
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Those do help and is a critical element of planning a build. I go to Pinterest and Google and search RV/ Skoolie? mini Home floor plans and get 1000's of idea's, as well as pictures of completed units. It ends up being too much to chose from making it hard. I want to do one in all gloss white, then I see one done in all stained wood and those look great too. I want to start a business building these things.
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Old 01-03-2018, 09:35 PM   #5
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Quote:
Originally Posted by Robin97396 View Post
That's an awful lot of stuff to put in a bus. For me it's been a matter of what I can fit through the chair lift door.
Maybe a double-decker bus? After doing a roof raise?

I just got tired of spending time looking up numbers every time I wanted to figure out how much headroom for a bunkbed or how far out a kitchen counter should extend or how wide a gap to leave between things for walking. Then, I'd forget and have to look it up again.

Getting things through the doorways seems like a challenge, particularly once stuff starts getting installed in the bus and making it hard to maneuver.

Anybody have anything to add to the list that I missed?
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Old 07-18-2018, 02:31 PM   #6
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Thank you!!
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Old 07-19-2018, 08:02 AM   #7
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Nice info sheet, thank you!
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Old 03-23-2020, 05:50 AM   #8
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I know this is late to the party,

What about a household fridge dimensions?
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Old 03-23-2020, 09:01 AM   #9
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If you're building your own seating, I highly recommend checking this out:


Ergonomics of sitting


Here's my summary I created when I built my seats:


  • Seat Height: about 17" (with a minimum of 15")
  • Seat Depth: 16.5"
  • Seat Width: 20-22" (this isn't really a factor for bench type seating)
  • Seat Angle: 5-10 degrees, meaning the forward edge of the seat (located under your knees) is higher than the back edge, giving an angle between 5 to 10 degrees. As an example, if we use the ideal seat depth of 16.5", the forward edge under your knees would be 1.43-2.85" higher than the back edge.
  • Cushion Height: 1.5-2"
    • Overall, the cushion should be more firm instead of soft
    • Ideally, the top layer should be softer, and the bottom layer should be firmer
    • The soft layer compresses to 25% it's normal height, and the firm layer compresses to 65% it's normal height (remember this for later)
    • The ideal ratio of soft cushion to firm cushion is 2.6--meaning 2.6 inches of soft cushion for every 1 inch of firm cushion, which if we used those exact numbers means we'd have a cushion 3.6" thick total. If we went with a 4 inch thick cushion, the top softer cushion would be 2.88 inches thick, and the bottom firmer cushion would be 1.11 inches thick
  • Armrests should be 8-10" above the seat surface
  • Backrests have three levels of support
    • The lower, lumbar support should be 5-9" high, with a concave curve depth of .6-2" into your back to support your lumbar region
    • If using a middle sized backrest, the height should be 26"
    • If going for the full neck and head support, the height should be 36"
    • The angle backwards should be between 100-110 degrees from pure horizontal, meaning if the seat was flat with the earth, go backward 100-110 degrees (not including the Seat Angle mentioned above). In other words, 10-20 degrees backward from the vertical axis.


Now it's important to note that I probably had the whole ratio thing wrong, and my seats will likely be 1" of memory foam on top of 3" of firm cushion. Then for sleeping we'll be putting a 1" memory foam topper on as well.

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Old 03-25-2020, 02:02 AM   #10
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Quote:
Originally Posted by Biscuitsjam View Post
And, here it is posted as text. The formatting is all screwed up, but at it least it is searchable. All dimensions are in inches.
I love the list!


Perhaps if you can save the JPG in PDF and post it here, then it can be searched and read more easily.
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Old 03-25-2020, 10:54 AM   #11
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I can do that, but only if other folks add more helpful dimensions.

1 cubic foot is approximately 7.5 gallons.

So, a 12" x 24" x 36" water tank is about 45 gallons (1' x 2' x 3' = 6 cubic feet. 6 x 7.5 = 45.) An 18" x 24" x 42" tank is approximately 78-3/4 gallons (1.5 x 2 x 3.5 x 7.5). Of course, the numbers will always be slightly off from real world based on the thickness of the tank, etc.
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Old 03-25-2020, 11:06 AM   #12
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Emergency roof hatches usually have a cutout of 24" x 24", but can sometimes vary in size.

Cutouts for RV air conditioners are 14" x 14" standard. Roof vents are also typically 14" x 14".
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Old 03-25-2020, 04:13 PM   #13
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7.5 is a nice rule of thumb considering 7.481 US liquid gallons is 1 cubic foot. Nice!
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Old 03-25-2020, 04:21 PM   #14
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House stairs: 7" rise, 10" depth
Bus stairs: 8.25" rise, 9" depth
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Old 06-29-2020, 10:57 PM   #15
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Standard restaurant dinettes (diner booths) are 53-54" wide (seats and table) Depending on the spacing, they are usually set 55" back-to-back, but I fit one into my kitchen at 53.5", and it was fine.
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Old 06-30-2020, 07:50 AM   #16
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Thank you for taking the time to search and compile this list. I am sure there is something on here that somebody (me included) will use at some point in their planning if not in their actual build. Big A+
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Old 06-30-2020, 08:32 AM   #17
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Refrigerators tend to have standard sizes, mostly based on width. If you want an oddball size though, somebody probably makes it.

A standard refrigerator is 28-36" wide, 29-35" deep, and 67-71" high. Standard widths are 28", 30", and 36". They range from 18-30 cubic feet, with most falling in the middle of that range (20-26 gallons). There are some extra wide models at 40" and some bigger than that.

Apartment refrigerators are 24-30" wide, 23-30" deep, 54-60" high. Standard widths are 24", 28", and 30". Depth typically matches width. Most apartment-sized fridges fall on the low end of these dimensions (24x24x56") at 7-10 cubic feet or on the high end (30x30x60") at 13-16 cubic feet. Slim refrigerator are similar to apartment-sized, with 21-22" width, but they are less common. There are also a few oddballs that are exceptionally tall (65-70") but they are also fairly uncommon.

Dorm refrigerators are usually 17-22" wide, 18-20" deep, and 20-34" high. Capacity is usually 1.7 to 4.5 gallons.
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