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October 24, 2026

Kitchen Planning

How to sketch your kitchen plan before you meet a designer

Using a free kitchen design tool lets you check clearances before hiring a pro. Learn how to measure your room and map out a layout that actually works.

Fiona Eckhart, monogramPrepared by Fiona Eckhart

  • 7 min. to read
Overhead view of a plain plywood sawhorse table holding two unfinished maple shaker cabinet doors, one plain square ceramic

Any free kitchen design tool works best when you start with accurate measurements and clear spacing rules. A rough sketch lets you test different floor plans at home. You can then bring a realistic layout to your first meeting with a professional.

Measure the room and its fixed points

Grab a tape measure and a notepad to record every dimension of your existing space. Measure the total length of every wall from corner to corner, and write these overall numbers down first.

Next, measure the walls in smaller segments. Start at one corner and measure to the outside edge of the window trim. Measure the window width including the trim, and continue to the next corner. The sum of these smaller segments must match the overall wall length.

Note the locations of all doors. The NKBA recommends a doorway clear opening of at least 32 inches, which needs at least a 2 foot 10-inch door. Measure the window heights and the distance from the floor to the bottom of the sill. This measurement tells you if base cabinets can fit underneath.

Locate your plumbing drains, water lines, gas pipes and electrical outlets, then measure their exact distance from the nearest corner. These fixed points dictate where your main appliances must go. Measure the ceiling height in several spots. Old houses often have uneven floors or sagging ceilings.

Draw the walls and windows to scale

Open your kitchen design tool and enter your wall measurements. Most programs ask you to draw the room perimeter first. Create a closed box that matches your exact room shape. Do not guess or estimate, as small errors here cause big problems later.

Add your windows and doors to the digital walls. Set the door swing directions correctly. An inswing door eats up floor space and might hit a cabinet. Adjust the window heights off the floor based on your notes.

Take ten minutes to remeasure your room and check the diagonal distances from corner to corner. If the two diagonals do not match, your room is not perfectly square. Some tools let you adjust wall angles to account for this. A square room on a screen will mislead you if the actual walls are out of plumb.

Mark the locations of your plumbing and gas lines using a small colored box or a text label. These visual cues remind you where the expensive utility hookups live. The finished outline shows how much room you have and whether standard kitchen cabinet sizes fit your plan.

Place the sink, range and refrigerator first

Anchor your layout by placing the three main work zones before you drop in any cabinets. The sink, range and refrigerator form your primary work triangle. Their placement determines how well the kitchen functions.

Start with the sink. It usually stays near the existing plumbing drain because moving a drain pipe across a room is expensive. Placing the sink under a window is a common choice. It gives you a view and keeps the plumbing on an exterior wall.

Next, place the range or cooktop near your gas stub or heavy electrical hookup. Every cooking surface needs ventilation, and placing the range on an exterior wall makes it easier to vent the hood outside. A long vent run through the roof or across a ceiling usually costs more.

If you want a separate cooktop and wall oven, place both of them now. Wall ovens require tall cabinets that block sightlines and counter space. Do not place a tall oven cabinet right next to a doorway. It will make the room feel cramped and block natural light.

Place the refrigerator last, as it is the largest appliance in the room. A standard-depth refrigerator is deeper than a base cabinet and will stick out. Place it where the open doors will not block a walkway and can swing wide enough to pull out interior drawers. Your layout must accommodate these big items before you settle the big decisions about cabinet styles.

Check work aisles and walkways

You need room to open appliance doors and walk past someone who is cooking. Your kitchen design tool shows the empty floor space, so measure it carefully.

A work aisle is the space where you stand to prep and cook. This is usually the floor space between the main cabinets and an island. NKBA's Kitchen Planning Guidelines recommend a work aisle of at least 42 inches for one cook and at least 48 inches for more than one cook.

Measure aisles from the edge of the countertop, not the cabinet face. Countertops usually overhang the cabinet box. A floor plan that shows the minimum space between cabinet boxes will yield a tighter aisle once the counters go in.

A walkway is a path used to travel through the room. People use it to walk past the kitchen, not to cook. The NKBA recommends a walkway through the kitchen of at least 36 inches.

Do not place an open oven door or dishwasher door in a primary walkway. Keep traffic out of the work triangle if possible. These guidelines are industry recommendations, not code. Check your state or local building department where rules vary.

Leave landing space beside the sink

Every appliance needs empty counter space right next to it. You need a place to set down hot pans or dirty plates. This open countertop is called a landing area.

The sink is your main cleanup zone. The NKBA recommends a landing area at least 24 inches wide on one side of the cleanup sink and at least 18 inches wide on the other.

You need space for dirty dishes on the larger side. You need space for clean dishes or a drying rack on the smaller side. Do not place a tall pantry cabinet directly next to a sink. It blocks your arms and eliminates your landing space.

If your sink sits in a kitchen island, the same rules apply. Center the sink to leave enough counter on both sides. Sinks placed at the very end of an island look sleek but can leave too little counter on one side.

Apply the same logic to your range and refrigerator. Leave counter space next to the stove for cooking utensils and ingredients. A microwave needs landing space below or beside it. Leave space near the fridge so you can set groceries down while you load them.

Allow room behind seating

Kitchen islands often feature an overhang for bar stools. This creates a casual dining spot. You must plan for the space those stools and people will occupy. A seated diner takes up more floor space than an empty stool tucked under the counter.

The NKBA recommends 32 inches of clearance behind seating where no traffic passes behind a seated diner. This allows the person to slide their chair back and stand up. Measure this 32 inches from the edge of the island countertop to the nearest wall or obstacle.

If people need to walk behind the seated person, 32 inches is too tight. NKBA recommends at least 36 inches to edge past a seated diner and at least 44 inches to walk past. Plan for more floor space if people will edge past the stools. You need even more room if the path is a main traffic route or accommodates a wheelchair.

Check your digital floor plan for doors near the seating area. A stool that blocks a swinging door is a hazard. Move the seating to a different side of the island if space is tight. Sometimes a simple counter without seating makes the room flow better.

Bring the sketch and a list of questions to the designer

Your digital layout shows what fits and what does not. Print your floor plan and take it to your first professional meeting. Bring photos of your existing room and a list of problems you could not solve.

A kitchen designer will look at your plan and spot the flaws. They know how to squeeze out an extra inch of storage. They can tell you when to ask an engineer and your building department whether removing a wall is structurally safe and needs a permit. They can also estimate if moving a gas line fits your budget, though a licensed pro should do that work.

A good designer uses your sketch to understand your priorities. They see if you favor counter space over tall pantry storage. They notice if you want a large island instead of a dining table. You spend the meeting discussing these preferences instead of drawing walls.

With a sketch in hand, you will not spend the first hour explaining the room size or door locations. You can move straight to materials and costs, which helps you hire an interior designer without overspending on early planning.

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