10 IKEA Kitchen Planner Mistakes Everyone Makes

Why Planner Mistakes Are So Costly

The IKEA Kitchen Planner is a fantastic free tool, but it gives homeowners a false sense of security. Because the design looks polished on screen, people assume the order will be correct. In our years of installing IKEA kitchens across Pennsylvania, Delaware, Maryland, and the DC area, we have seen the same planner mistakes come up again and again. Each one can mean delayed timelines, extra trips to the store, and wasted money.

Here are the ten mistakes we see most often — and exactly how to avoid each one.

Mistake 1: Trusting Round Numbers Instead of Exact Measurements

This is the single most expensive mistake homeowners make. The planner lets you type in any number for your room dimensions, and it will happily build a design around measurements that are off by half an inch. That half inch matters enormously when cabinets need to fit between two walls.

How to avoid it:

• Measure each wall at least twice, at different heights
• Use a steel tape measure, not a cloth one
• Record measurements in inches, not feet and inches
• Have someone else verify your key measurements
• Read our complete measurement guide before you start

The Real-World Impact

We once arrived at a rowhome in South Philadelphia to install a kitchen where the homeowner's measurements were off by 1.5 inches on one wall. The entire run of base cabinets was too long. The fix required returning a cabinet, ordering a narrower one, and waiting two weeks for delivery. The total delay cost the homeowner three weeks of living without a functioning kitchen.

Mistake 2: Ignoring Filler Pieces Entirely

The planner does not automatically add filler pieces, and many first-time planners do not even know they exist. Fillers are narrow strips of matching material that go between cabinets and walls, between cabinets and appliances, or between two cabinets at a corner.

Why they matter:

• Without fillers, cabinet doors and drawer fronts can hit walls when opened
• Appliance doors may not open fully
• Gaps between cabinets and walls look unprofessional
• Corner cabinet doors need filler space to swing open

How to avoid it: After completing your layout, check every point where a cabinet meets a wall or an appliance. Add a filler piece of at least 2 inches at each of these points. For corners, you typically need 3 to 5 inches of filler.

Mistake 3: Forgetting About Plumbing and Electrical Locations

The planner has markers for plumbing and electrical, but many users skip them because they seem optional. They are not optional. Your sink cabinet needs to line up with the existing drain and water supply lines. Your range or cooktop needs to be near the gas line or the appropriate electrical circuit.

How to avoid it:

1. Before opening the planner, photograph the wall behind your current sink and stove
2. Measure the exact position of every pipe, drain, and outlet from the nearest corner
3. Enter these into the planner using the utility markers
4. Design your layout around these fixed points unless you have budgeted for plumbing and electrical relocation

Moving plumbing in older homes across the mid-Atlantic — especially in areas with original cast-iron pipes — can add $1,500 to $3,000 to your renovation budget. Check our plumbing rough-in guide for specifics.

Mistake 4: Not Accounting for Uneven Walls and Floors

Every home we work in across the PA, DE, MD, and DC region has some degree of unevenness. Older rowhomes in Baltimore, colonials in Chester County, and even newer construction in Northern Virginia can have walls that are not plumb and floors that are not level.

The planner assumes everything is perfectly square and level. It will never warn you about real-world conditions.

How to avoid it:

• Use a 4-foot level on every wall where cabinets will be installed
• Check the floor for level across the full span of the cabinet run
• Note the highest and lowest points of the floor — base cabinets are installed level, starting from the highest point
• Add 1/4 inch of buffer space in your planner layout for shimming adjustments

Mistake 5: Choosing the Wrong Cabinet Depth for Your Space

IKEA SEKTION base cabinets come in standard 24-inch depth, but the planner also offers 15-inch deep base cabinets. Wall cabinets come in 12-inch and 15-inch depths. Choosing the wrong depth is surprisingly easy in the planner because the visual difference on screen is subtle.

How to avoid it:

• In galley kitchens narrower than 8 feet, consider 15-inch-deep base cabinets on one side to maintain walkway width
• Verify your appliance depths match the cabinet depth you selected (many refrigerators are deeper than 24 inches)
• Check that wall cabinet depth does not conflict with anyone tall using the counter below — 12-inch depth wall cabinets are more forgiving for taller household members

For more layout strategies in compact spaces, see our small kitchen guide.

Mistake 6: Overlooking Door Swing Conflicts

This mistake only becomes apparent during installation, and it is one of the most frustrating. In the planner, cabinet doors open perfectly into empty space. In your actual kitchen, they can collide with other doors, appliance handles, window trim, or light switches.

Common conflict zones:

• Corner cabinets where two doors meet at 90 degrees
• Cabinets next to refrigerators
• Cabinets near doorway trim or window casings
• Dishwasher doors vs. cabinet doors on the perpendicular run
• Oven doors in galley layouts

How to avoid it: In the planner, click on each cabinet and use the "open door" visualization if available. Better yet, use painter's tape on your current walls and floor to mark the full swing arc of each door in your planned layout. Walk through the motions of cooking a meal and notice every potential conflict.

Mistake 7: Misunderstanding How IKEA's Cover Panels Work

SEKTION cabinets have an unfinished side. Any cabinet that is exposed (not against a wall or another cabinet) needs a cover panel on its visible side. The planner does not always make this obvious, and many shoppers arrive at installation day missing critical cover panels.

Sides that need cover panels:

• The exposed side of the last cabinet in a run
• Both sides of a kitchen island
• The side of a cabinet facing a doorway or open room
• The side of a tall cabinet that sits next to a shorter run

How to avoid it: Walk through your design from every viewing angle. Any cabinet side you can see from the room needs a cover panel. Add them to your item list manually if the planner does not prompt you.

Mistake 8: Selecting Cabinet Heights Without Checking Ceiling Clearance

IKEA wall cabinets come in multiple heights: 15 inches, 20 inches, 30 inches, and 40 inches. The planner defaults to a specific height and mounting position, but your ceiling height determines what actually fits.

Many homes in the mid-Atlantic have 8-foot ceilings, but plenty of older homes have 9-foot or even 10-foot ceilings. Some basements or apartments have ceilings below 8 feet.

How to avoid it:

1. Measure your exact ceiling height
2. Decide if you want cabinets to reach the ceiling (cleaner look, no dust collection) or stop short (easier to install, allows for crown molding)
3. Use the planner's height settings to match your real ceiling
4. Remember to account for any soffit, bulkhead, or ductwork that reduces available height

Mistake 9: Not Printing and Reviewing the Full Item List

The planner generates an item list — every single piece you need to order. This list is long and detailed, and most people glance at it without truly reviewing it. This is where missing items hide.

Items commonly missing from incomplete reviews:

• Toe kicks (FORBATTRA)
• Hinge packs (UTRUSTA)
• Leg sets for base cabinets
• Mounting rail (SEKTION suspension rail)
• Drawer slides and internal organizers
• Light valance strips

How to avoid it: Print the item list and go through it line by line. For each cabinet, verify that you have the cabinet box, the correct door or drawer front, hinges or slides, and legs. Cross-reference with the SEKTION system guide to make sure nothing is missing.

Mistake 10: Designing in Isolation Without Professional Input

The planner makes you feel like you can do everything yourself. And technically, you can create a design. But the planner cannot replace the experience of someone who installs IKEA kitchens regularly. A professional will spot issues in five minutes that might take you five installation days to discover.

What a professional review catches:

• Structural concerns (can that wall support wall cabinets?)
• Code requirements for ventilation, electrical, and plumbing
• Practical workflow issues the planner's top-down view hides
• Missing items on the order list
• Better layout alternatives you may not have considered

How to avoid it: Before placing your IKEA order, have your design reviewed by someone who knows the SEKTION system inside and out. This one step can save you more money and frustration than all the other tips combined.

A Quick Checklist Before You Order

Before you finalize your IKEA kitchen order based on your planner design, run through this checklist:

• [ ] All room measurements verified by a second person
• [ ] Filler pieces added at every wall-cabinet and wall-appliance junction
• [ ] Plumbing and electrical locations marked and accounted for
• [ ] Floor and wall levelness checked with a spirit level
• [ ] Cabinet depths appropriate for the room size
• [ ] All door swings checked for conflicts
• [ ] Cover panels added to every exposed cabinet side
• [ ] Wall cabinet heights confirmed against actual ceiling height
• [ ] Full item list printed and reviewed line by line
• [ ] Design reviewed by a kitchen installation professional

Bonus: Three Mistakes We See in Specific Home Types

Rowhome Kitchens (Philadelphia, Baltimore)

The most common mistake in rowhome kitchens is designing a layout that is too deep for the narrow space. Homeowners choose standard 24-inch-deep base cabinets on both walls of a galley kitchen, leaving only 30 inches of walkway. That feels cramped, especially with appliance doors open. In kitchens under 8 feet wide, consider 15-inch-deep base cabinets on one wall. The planner lets you mix depths, but it does not warn you when the walkway gets too narrow.

Colonial and Cape Cod Kitchens (Suburban PA, MD, DE)

These homes often have kitchens with doorways on multiple walls, and the most common mistake is trying to fit a full cabinet run on a wall that has a doorway. The planner will let you place cabinets right up to a door opening, but it does not account for door trim width. Always leave at least 3 inches between the last cabinet and the door trim so the cabinet door can open fully.

Condos and Apartments (DC, Northern Virginia)

The biggest mistake in condo kitchens is ignoring building management rules. Many condos restrict renovation work hours, require contractor insurance documentation, and prohibit certain modifications like moving plumbing or adding exterior vent penetrations. Before you finalize your planner design, check your building's renovation guidelines. A design that requires plumbing relocation may not be permitted.

Get Expert Eyes on Your Design

Even experienced DIYers benefit from a professional review of their IKEA kitchen plan. A 30-minute consultation can catch errors that would otherwise cost hundreds of dollars and weeks of delays.

Kitchen Fitters has reviewed and installed hundreds of IKEA kitchens throughout Pennsylvania, Delaware, Maryland, and the DC metro area. We offer free design reviews as part of our installation consultation. Whether you are planning a full renovation or just want a second pair of eyes on your planner layout, reach out to Kitchen Fitters today. We will make sure your plan translates into a kitchen you will love.