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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 bath is the quintessential bathroom that everyone desires. By definition, a full bathroom contains at least 1 sink, 1 bathtub, 1 shower and 1 toilet. If it does not contain these four aspects, then it cannot be considered to be a full bathroom regardless of what anyone decides to argue. And although it is highly desirable, by pure logistics, full bathrooms are considerably more rare in most homes as they are quite large and require a fair amount of space. That is why full baths are usually relegated to 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?

As stated above, there are four items that qualify a full bath-a toilet, a shower, bathtub and any type of vanity such as a sink. As the name suggests, a ¾ bathroom or three-quarter bath is a bathroom that has just either a shower or a bathtub alongside a toilet and sink. Having just one of these additions of course lowers the amount of space required, making three-quarter baths much more space efficient when compared to full bath. These are typically the bathrooms found in larger apartments or mid-range homes.

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?

The smallest bathroom size, half bathrooms are often referred to as powder rooms because generally they are just large enough to fit a sink and a toilet. Because they do not contain a shower or bathtub, they can be much smaller and efficient in space. These bathrooms are common in nearly all types of homes as they increase the number of bathrooms in your home without being intrusive space wise. Be careful though, when purchasing a home, as most sellers do not disclose the type of bathroom in the home and there is a large difference between 2 three-quarter baths or 2 half 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.

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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