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Full, 3/4s and Half Bathrooms: Everything you need to know

When remodeling your home, you may struggle finding which bathroom size is appropriate for your home. The full sized bathroom may seem highly appealing, but it may not necessarily be the best choice for your home or your budget. So today we will be discussing the three general sizes for bathrooms, namely Full, Half and ¾ or Three quarter sized bathrooms to help you better decide which size is right for you.

What is a full bathroom?

A full bathroom is a bathroom that contains exactly 1 sink, 1 bathtub, 1 shower and 1 toilet. Of course you can have more than just 1 of each of these items in your bathroom, but for it to be called a full bath, it must contain at least 1 of each of these items. And because of the space required, a full bath is rare in most homes, with usually just one in most homes, most likely in the master bedroom of the home.

What is a typical layout of a full bathroom

A typical full bathroom usually has the bathtub and shower relatively close to each other, away from the door and closer to the wall/window, separated by the vanity. At the end of the vanity or sinks, you usually have the toilet placed opposite in its own recess or corner.

Sizes of a Full Bathroom

Small & Average Full Bathroom Size

At minimum, a full bath requires at least 40 square feet with all the additional elements accounted for. Typical building code requires at least 32 square feet for a shower, so the additional 8 feet account for the addition of the bathtub. As a general rule, the bathtub is the largest hassle of size as showers, toilets and sinks can fit into much smaller spaces comparatively. While 40-45 square feet runs the small side, the average size of a full bath is anywhere between 40-60 square feet, though this is dependant on the bathroom style and how many bathrooms your space currently has.

Larger Full Bathroom Sizes

While 40 square feet may be on the small side, large full baths can easily run up to 146 square feet and beyond. The reason for this is because many are setup to run parallel or jointly with the master bedroom. If you include double vanities, combined with the shower, bathtub size and your toilet, you’ll have a bathroom that is both spacious and easy to use, but be prepared for the average size of these to run between 70-110 square feet not counting your bedroom.

Remodel Cost

As you can imagine, remodeling a large bathroom is going to be much more costly than renovating or fixing up a smaller sized bathroom. On average, depending largely on the amount of space available, you are looking at a price quote of anywhere between $13-15,000 depending on the size of your bathroom and the materials you desire. Of course, 13,000 is just a starting point as large sized bathrooms can climb easily up to $20-30,000 if you aren’t careful as working on your home can always cost more depending on the age of your home itself and any complications that arise from it.  

What is a ¾ bathroom?

A ¾ bathroom is a bathroom that has either a shower or tub with 1 sink and 1 toilet. The advantage of a ¾ bath is to save space, making it more efficient for smaller homes and apartments over a full bath. These bathrooms are generally found in large apartments and mid-sized houses, making them much more common than a full bath.

Typical layout of a ¾ bathroom

With the size being smaller, the layout changes quite a bit from a full bath. Since the space is smaller, the layout needs to be more compact. The shower or bathtub is still placed hugging the wall or window, but usually the toilet is placed right next to it in an attempt to save space. The sinks are usually placed on the other side of the toilet, typically closer to the door or entrance.

Sizes of a ¾ bathroom

As discussed before, 32 square feet is required to place a shower in a space comfortably. To fit a vanity, shower and toilet, this space size grows to around 35 square feet which is the bare minimum for a bathroom of this size. If you are trying to run a bathtub instead, this increases your size to around 40 square feet.  On the small side, you are looking at 32 square feet, whereas the average size is around 40-50 square feet. Any larger than 50 square feet, you are approaching the normal size for a full sized bath and this size of bathroom is not necessary after that. Homes under 2,000 square feet have only around 90-95 square feet dedicated to all of their bathroom space, not including the master bath so keep that in mind when sizing your home.

Remodel cost

As the space is much smaller, remodeling a three-quarters bath runs about $5,000-9,000 as an average. Of course you can run much lower depending on if you are simply replacing your bathroom or just touching it up, but the presence of a bathtub or shower does increase the cost of renovation when compared to bathroom that is just a toilet and sink.

What is a Half bathroom?

A half bathroom is a bathroom that does not contain a bath or a shower, just a toilet and sink. Because of this, half baths are among some of the most efficient in terms of saving space, and are generally the most common in nearly all homes as they increase the number of bathrooms in the home without requiring too much additional space. As a result, you should be careful when a home refers to having “multiple” baths as many of these can be half baths instead of ¾ or full baths.

Typical layout of a half bathroom

As space is a premium in these types of bathrooms, the layout is usually always the same. The toilet is placed usually against the wall, with the sink or vanity opposite. There usually is a window or some kind of ventilation present, but the room is designed to fit just the sink and the toilet-everything else is secondary.

Half Bath sizes

Since there is more flexibility in terms of space, Half-baths come in a wide variety of sizes. On the smallest end of the spectrum, you can find half baths around 11-12 square feet. The average size for a half bath is around 18-20 square feet. This can be extended to the large size, which hovers around 20-32 square feet, which is just the cutting off point for fitting a shower stall within city code.

What is a 1.75 Bathroom

A 1.75 bathroom describes two separate bathrooms in a home; one full bath and one ¾ bath. As mentioned the full bath 1 shower, 1 bathtub,1 sink and 1 toilet and the other bathroom has either 1 shower or bath, 1 sink and 1 toilet. Each component of a bathroom is counted as .25, so the values can be interchanged depending on the amenities you prefer, but for realtors, a 1.75 bathroom will always refer to at least two different bathrooms in your home.

What is a 0.25 Bathroom 

A 0.25 bathroom is a bathroom that has either a sink, a shower, toilet or a bathtub. These baths are similar to half baths, but they only have one fixture instead of half baths that have both a toilet and sink. An example of this a 0.25 bathroom is a hallway shower or a freshen-up room with a single sink and mirror. These are ideal in smaller homes that require additional showers or sinks but do not have the luxury of space. 

Remodel cost

As it is the smallest in size, half baths are also the cheapest to remodel and replace. Since you don’t have to deal with a shower or bathtub, the price quickly drops to around $2,000-4000 starting. Of course this price is subject to change depending on what kind of toilet you install or the type of vanity you desire along with how much space is available to you.

When remodeling your bathroom, it is important to know how big your bathroom is and what you want it for. As you can see, just having a plain bathroom without a shower or bathtub quickly lowers the price and the size requirement for your house. Full sized baths are quite desirable, but not all houses can support one, so research accordingly to find the right size for your home.

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