Bathroom Floor Plans & Measuring Tips

Designing for Your Space - Planning an efficient layout and following recommended design guidelines can help ensure that you end up with a stylish bathroom that's safe, functional, and comfortable.


Use these sample floor plans to gather ideas about placement of elements. Whatever the size of your bath, keep in mind that the more walls that contain plumbing pipes, the higher the price tag. If budget is a concern, limit plumbing fixtures to one wall; for the greatest design flexibility, opt for a three-wall layout.


3/4 Bath Floorplan

All plumbing on the same wall saves labor and supply expenses. With only one sink and a shower, this is a popular and hardworking plan.

Full Bath Floorplan

A tub/shower combination is a good choice for many baths. The tub's end wall and the way the door opens help keep the toilet separate from the rest of the space. There is room for a long vanity with two sinks.

Posh Bath Floorplan

The large tub is framed by an alcove with end shelves, and the double vanity saves space with shallow ends. The walk-in shower saves money because it doesn't require a door.

Posh Plus Bath Floorplan

This plan has it all: a separate shower, a corner tub under windows, a double vanity, and a private toilet compartment.

Double the Comfort

Are you planning a master bathroom that can easily accommodate two users during the morning rush hour? Consider including a separate shower-or better yet, a walk-in shower with multiple shower heads. Install dual vanities on separate walls to enhance convenience, and include the toilet in a private enclosure.


Measuring Tips

Step 1: Measure the Overall Room
Draw a diagram of your bathroom, locating all windows and doors in their approximate positions. Note on the drawing the overall wall lengths of each wall. Start at the door opening and continue clockwise around the room.

measure bathroom


  • All of your measurements should be in inches. For example, if you measure a wall that is 10 feet, write it as 120 inches - a quotation mark (") denotes inches.
  • For doorways with hinged doors, draw the door according to which way the door swings.
  • If you are replacing the cabinets, do include current cabinets or furniture such as pedestals, commodes or linen cabinets in your measurements (width x height x depth). However, take the measurements of any furniture you want to include in your new bathroom. Take photographs of these items. Their placement in the new bathroom is part of the design process.
  • Do indicate the precise location of the center-line of the current toilet, bidet, sink or vanity, and bathtub and/or shower. In the shower, measure the center of the drain from the two closest 90° walls. Show the location of the shower arm and head. If your toilet is wall-mounted, write "wall-mounted" next to the toilet.


Step 2: Label and Measure Doors and Windows

  1. Beginning at the top left comer of your drawing measure to the first window, door, or wall. Continue clockwise around the room until each wall, window and door has been measured. Remember, all measurements are in inches.
  2. Beginning at the top left of your drawing, label the windows 'Window #1 ", "Window #2", etc. in a clockwise order ...
  3. Again, beginning at the top left of your drawing, label the doors "Door #1 ", "Door #2", etc. in a clockwise order.
  4. Next to each wall, write the name of the adjacent room. If the wall is an "outside wall" write "exterior wall." If the room is a candidate for expanding the bathroom, also measure that room.
  5. As shown in Diagram 2, measure from the floor to the bottom of each window and also measure the overall window height.

    Notes: When measuring doors and windows the trim is considered part of the door or window. Measure from the outside of the trim on one side to the outside of the trim on the other side, then from the outside of the trim to the middle of the window or door.

  6. Using a table like Diagram 3, record the measurements for all windows. Be sure that each window is accurately labeled.
  7. Note if the home is a condo or single family. If condo, what floor? Also, what is the maximum sizes that the elevator will accommodate. Single Family, note if located on the st 1 floor, 2nd floor, or lower level.
  8. Note on the drawing the accessibility to the space and take photos. For example, the room may allow for a 72" tub, but the tub is not able to make the tum in the hallway to the bathroom.
  9. Note space as: Master Bathroom, Hall/Guest Bathroom, Jack & Jill Bathroom, Powder Room


Step 3: Identify and Measure Unmovable Obstructions

  1. Draw boxes in your diagram to show the approximate location of any obstructions such as radiators, vents, pipes, exposed plumbing, smoke detectors, central vac., etc. that you either cannot move or do not want moved. Label the object what it is: i.e. "radiator", "pipe", etc.
  2. Measure the obstruction and record the width, height, and depth of the obstruction on obstruction reaches the ceiling, omit the height measurement. If the obstruction is not in contact with the floor, measure from the floor to the bottom of the obstruction. Measure the distance of the object from the nearest two 90° walls.
  3. Measure from the nearest wall to the nearest edge of the obstruction. Measure from the point on the wall that is nearest the obstruction to the point on the obstruction nearest the wall. Measure from the second closest wall to the nearest point of the obstruction. Note these measurements on your drawing.
  4. In construction dimensions of an object are always given in the same format: width across the front, then height, then depth, so the dimension 32"x54"x14" is presumed to mean 32"w x 54"h x 14"d unless otherwise indicated.


Step 4: Measure the Height of the Ceiling
Measure the ceiling height and write it in the center of your drawing. Sometimes, especially with older homes, it is a good idea to take measurements in a few different areas of the bathroom. Ceiling heights, even in the same room, can sometimes vary by as much as several inches. If it varies, write down both the low and high measurements.


Step 5: Check your Measurements
Check your measurements. If your room is rectangular add up the measurements of the parallel walls and make sure they match (or are at least very close). For example, in our sample drawing, you would take the overall measurements of the top wall and add them together. Then do the same with the bottom wall. Once you have added each wall measurements check the totals to see if they match.

Prepare for Your Meeting

How big is your space? Who will use this bathroom? How will the kitchen be used? Where will you put things? Facing so many choices can be daunting but don't worry, here are easy steps that will help you get organized.

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Planning an efficient layout and following recommended design guidelines can help ensure that you end up with a stylish bathroom that is safe, functional, and comfortable.

Bathroom Floor Plans & Measuring Tips

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