Bathroom cost calculator
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Caveat lector! (Reader beware!)
This bathroom construction cost calculator is only designed to give a preliminary estimate on the cost of building a new bathroom or renovating an existing bathroom. For accuracy you will require detailed plans, exact prices for the PC items you select and the services of a specialist.
Step 1: Choose a bathroom size
You can select your bathroom's size by clicking on one of the layout's shown below. This will set the size parameter in the calculator below. Alternatively you can specify a custom size. The various colour schemes shown for each layout do not affect the cost, they are just for fun.
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Option A
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Option B
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Option C
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Step 2: Specify bathroom's size, contents and tiled area
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More on bathrooms
You may find it beneficial to have a look at these bathroom web pages:
- Find a bathroom specialist in our online kitchen and bathroom directory.
- Australian bathroom design. What to do with a bathroom really depends on how much the bathroom is used. An entire family using one bathroom warrants more upgrade and facilities (like double showers, basins) than a one person bathroom...
- DIY bathroom renovations. DIY renovations can be a satisfying and cost saving process, but should you do it all yourself? Most DIY renovators do the project management, demolition, colour scheme selection, source the fixtures and fittings, remove and install most fittings such as hooks and towel rails and paint. However, unless they are really skilled...
- Japanese toilets Enter a modern Japanese home and one is struck by both the sophistication of electronic entertainment and white goods. The pursuit of design and high technology seems imbedded in the Japanese psyche. Also imbedded is their art of cleanliness...
Size of bathroom
Clicking on "small" is equivalent to choosing layout option "A", clicking on "medium" is the same as choosing layout option "B", etc.
Specifying your own bathroom area may adversely affect the accuracy of this calculator because it has been tuned to use one of the 3 layouts shown; i.e. a rectangular layout with only the PC items shown on the plan.
Tiles
Most bathrooms are tiled. If you believe the per-square-metre costs shown for tiling are unrealistic specify your own value. (And don't forget the walls!).
Bath
| Baths vary in price depending on what materials they are made of, brand name and installation requirements. A basic bath could be an acrylic recessed bath notched into the stud wall. A standard bath can be acrylic or enamel steel that sits in a tiled "hob". A premium bath might be a free standing steel bath with a matching "skirt". |  basic |
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Bath Mixer
A mixer is a single tap and spout item that delivers hot and cold water. Separate tap and spout sets are called either shower, basin or bath "sets" and are generally more economical than mixers and have less moving parts - thus less problems.
Bath Wall Spout
Basic bath spouts are manufactured to sit off the wall and over the bath. Standard spouts can be wall or hob mounted. Hob mounted spouts are called spa hob spouts and are more expensive. BTW: brushed chrome items - although very swish are always more expensive than chrome
Bench Top
A basic bench top could be 'Laminex'. A standard bench top would cover granite and a custom bench top would be a man made composite product such as 'Caesarstone' or Terrazzo. 'Coran' and 'Laminex' - Freeform are resin form products that would fit into the premium costing
Vanity
A vanity usually sits under the bench top and is used to store various bathroom items like extra toilet paper, etc.
Basin
The basin is usually bought alone, without the tap and spout and can come in a few different options. 1. Vanity basin - recessed into the bench. 2. Semi-recessed - basin protrudes slightly from the bench top. 3. Wall hung or pedestal - no bench top or vanity required.
Basin Set
A basin set is the term used for the 2 taps and spout purchased together and installed with the basin.
Mirror
A fixed mirror is the most economical option. Cabinet mirrors include a shelving unit behind the operable mirror and cost more than a fixed mirror.
Hand Towel Holder
This item is for hanging a hand towel only and is inadequate for drying a bath towel
Shower Enclosure
| There are three general types of shower screens. They are... (1) Basic: made from thin glass panels with large section aluminium extrusions. (2) Standard: semi-frameless using slightly thicker glass panels with less thick aluminium extrusions than no:1. (3) premium - frameless shower screens - these have no aluminium frame to support the glass but the glass is quite thick - the screens are attached to the wall with chrome brackets. |  |
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Shower Rail
A shower rail is a shower rose and hose combination that attaches to the wall via a vertical rail made of plastic with a chrome finish or stainless steel.
Soap Dish
When designing a bathroom you need to think about soap... pick one!
Heated Towel Rail
Very nice but also pricey and they vary greatly in price. Pick a small one for economy.
Robe Hook
Very handy items for the back of the bathroom door.....
Exhaust Fan
The Basic exhaust fan will draw moisture from the room. A standard unit may also have a light. The premium fan will also have a heater. Remember if you have a well ventilating window you won't need a fan.
Toilet Suite
| To the right are examples of a premium, standard and basic toilet suite which respectively sell for approximately $650, $450 and $280. |  |
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Toilet Roll Holder
Very handy item and they range in price depending on how well they are designed and made.
Floor Waste
Floor wastes have come along way in the last few years. Basic... you can still buy the regular round chrome floor wastes or even cheaper plastic floor wastes. Standard... concealed floor wastes are square or round in shape and are designed so a tile can be inserted into the top hence concealing the floor waste. Premium - floor troughs are so very cool... they are made to order and are generally about 900mm long and 100mm wide and deep. They have a stainless steel grated top finish and represent the "top end" of floor wastes.
