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A tape measure and a careful sketch are enough to begin. The finished record is a planning document for a cabinet designer or installer; it is not a substitute for confirming site conditions and the current installation guide for each appliance before ordering.
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What your kitchen measurement plan must show
A useful plan is more than a list of wall lengths. It lets a cabinet planner determine what space is genuinely available and lets you test a particular appliance against the opening, utilities and route into the room.
- Every wall, labeled with a letter or number, measured from corner to corner.
- Floor-to-ceiling height, plus floor-to-soffit height and soffit depth where a soffit exists.
- Windows, doors, casing and trim, radiators, posts, vents, light switches, outlets and any other fixed obstruction.
- The width and height of each opening and its distance from a consistent corner or wall.
- Sink, water supply, drain, gas, electrical, lighting and HVAC locations, including relevant heights above the floor.
- Existing or planned appliance locations and the brand and model of each known appliance.
- Available openings and appliance dimensions in width, height and depth, with the tightest usable measurement recorded where dimensions vary.
- Required ventilation, wall clearance, door swing, hinge clearance and installation allowances taken from the exact model’s current instructions.
- Doorways, hallways, stairwells and turns along the delivery path.
Take photographs of every wall and close-ups of unusual conditions. Photos preserve details that a two-dimensional sketch can miss, such as a pipe crossing the back of a cabinet, an uneven corner or a vent that is partly hidden by trim.
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Gather tools and prepare the room
Use simple, reliable measuring tools
- A tape measure long enough for the room’s longest wall.
- A pencil and a large sheet of paper, graph paper or a printed measuring sheet.
- A straightedge for drawing walls and a phone or camera for photographs.
- A small level, if available, to identify visibly out-of-level surfaces.
- A second person to hold the tape for long walls and to record readings while you measure.
Measure in one unit throughout the plan, such as inches or millimetres. If a cabinet designer or retailer requires a particular unit, convert the completed record once rather than mixing units during the survey. Clear loose items away from walls, open doors and drawers, and expose removable trim only if it can be removed safely without disturbing wiring or plumbing.
Set a reference system before taking numbers
Assign each wall a label, such as Wall A, Wall B and Wall C, and choose one corner as the starting reference for each wall. Record whether a feature is measured from the left or right corner when you face that wall. This prevents a window or outlet from being placed on the wrong side of a plan when the room is redrawn later.
Draw and label the room
Make an overhead sketch first
Draw a simple top-down outline of the kitchen. It does not need to be to scale. Mark the wall labels, doors and windows, then leave enough room beside each wall to write measurements directly on the paper. Add an arrow showing which direction is north only if orientation will help explain a window, exterior wall or delivery route.
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Record the room height and soffits
Measure from the finished floor to the ceiling at more than one location if the ceiling appears uneven. If a soffit is present, record both the full floor-to-ceiling height and the floor-to-soffit height. Measure the soffit’s depth from the wall and note whether it runs continuously or stops around an opening. A cabinet that fits below a soffit may not have the same usable height as one on an adjacent wall.
Measure every wall and verify the room envelope
Take corner-to-corner wall measurements
Measure each wall from the actual corner to the actual corner, not just the length of the intended cabinet run. Keep the tape level and straight. If a wall has a jog, column or recessed section, treat each segment as a separate run and record the direction change on the sketch.
Measure the same run again if the reading seems inconsistent with the room or with adjacent walls. Note visibly bowed walls, angled corners or areas where baseboard and casing change the usable surface. Do not silently subtract trim; record the wall measurement and the trim dimensions separately so the designer can decide how the cabinet will meet it.
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Record changes in floor level, raised platforms and any permanent ledge. Note beams, ducts or dropped ceilings overhead. Where the floor is not level, measure the difference between the high and low points and photograph it; level cabinets may require installation adjustments that are not apparent from a single height reading.
Locate windows, doors and fixed obstructions
Measure each opening, not just its position
For every window and door, record the opening width and height, the sill or threshold height above the finished floor, and the distance from the nearest reference corner. Measure the casing and trim separately if they project into the cabinet area. For a door, show the hinge side and the direction of swing on the plan. For a window, note whether it opens inward, outward or not at all.
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Use the same method for pass-throughs and openings into adjoining rooms. A cabinet may fit the clear opening but conflict with casing, a handle or the swing of an adjacent door.
Record anything that cannot move
Mark radiators, pipes, structural posts, exposed ductwork, vents, electrical panels, fire-safety equipment and other fixed features. Measure each feature’s width, depth and height, then locate its nearest edges from a corner or wall. Photograph unusual conditions and write whether the feature is fixed, removable or still to be confirmed.
Do not rely on an approximate visual location. A post that appears centered in a wall can shift an entire cabinet run if its exact offset is not recorded.
Map plumbing, gas, electrical and HVAC utilities
Show the sink and water connections
Mark the sink centerline and the locations of hot and cold water supplies, the drain, shutoff valves and any water-treatment or filtration connections. Record the height above the finished floor when a connection is not at cabinet-floor level. If the sink will move, identify the planned centerline rather than treating an existing connection as the final design.
Locate gas and electrical points
Show the gas line, electrical receptacles, dedicated appliance circuits, switches and any junction boxes. Record outlet height and horizontal position from a corner or the appliance centerline. Note which outlet or circuit serves which appliance if that is known.
When a line is hidden, mark the location as an estimate and identify the fixed reference used. For example, a concealed gas line can be located relative to the center of the range location, as described in KraftMaid’s measuring guidance. An estimated line must not be presented as an observed measurement; confirm it before cutting cabinets or relocating services.
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Mark vents, lights and air movement
Measure floor, wall and ceiling vents, return grilles, light fixtures and switches. Record the clear area that must remain open around each feature. A cabinet or appliance can block airflow even when its footprint appears to fit, so include the vent face and the direction of airflow on the sketch.
Measure cabinet space after accounting for the room
Cabinet planning uses the usable wall run, not simply the total wall length. Start with the corner-to-corner measurement, then identify the portions consumed by openings, trim, obstructions, appliance spaces and required clearances. Keep those deductions visible on the plan rather than replacing the wall measurement with a single unexplained “available” number.
Create a wall-run schedule
| Wall | Overall corner-to-corner length | Openings and fixed features | Appliance or utility zones | Remaining run to review |
|---|---|---|---|---|
| Wall A | Record measured length | List each feature with offset and size | List sink, range, refrigerator or other zones | Calculate only after clearances are known |
| Wall B | Record measured length | List each feature with offset and size | List appliance and service requirements | Calculate only after clearances are known |
| Wall C | Record measured length | List each feature with offset and size | List appliance and service requirements | Calculate only after clearances are known |
The “remaining run” is a planning result, not a universal cabinet standard. The designer must still account for cabinet construction, fillers, end panels, doors, handles, corner solutions and the installation instructions for the selected appliances.
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Measure each appliance and its opening
List the brand and model whenever one is known. Measure both the existing or planned appliance and the space it will occupy. Record width, height and depth, then compare those figures with the current installation guide for that exact model.
Use the tightest opening measurement
Openings often vary from side to side or from top to bottom. Measure width near the front and back, and at the top, middle and bottom where access allows. Measure height at both sides and near the center. Measure depth from the finished face that the appliance will meet to the nearest wall or obstruction, checking at more than one height if the wall is uneven.
For fit assessment, use the smallest usable width, height and depth you observed. Keep the larger readings in your notes because they reveal how the opening changes, but do not use a larger section to justify a unit that must pass through a tighter section.
Use an appliance comparison table
| Appliance | Measured opening | Unit dimensions to record | Additional checks |
|---|---|---|---|
| Refrigerator | Tightest width, height and depth | Case width, height and depth; hinge and handle projection | Hinge-side clearance, door swing, ventilation and delivery path |
| Range | Width at more than one level; depth to wall | Overall width, height and depth | Door and control operation, surrounding surfaces, ventilation and gas or electrical connection |
| Cooktop | Countertop cutout width, depth and corner details | Product dimensions and required cutout dimensions | Clearance below and above, ventilation and electrical or gas installation |
| Dishwasher | Opening width and height at several points; depth to rear obstruction | Unit width, height and depth | Plumbing route, electrical connection, door swing and manufacturer installation instructions |
| Wall oven | Cabinet cutout width, height and depth | Product dimensions and cutout dimensions | Cabinet support, ventilation, electrical supply and door clearance |
Refrigerators: measure movement as well as the niche
Record the refrigerator opening at the front and back, the depth to the wall and the location of adjacent walls or tall cabinets. Measure hinge-side clearance and draw the door swing. A refrigerator can fit its nominal width yet fail to open far enough for drawers to pull out or for doors to clear a wall.
Measure the path from the exterior entry to the kitchen, including the appliance’s required orientation around corners. Include thresholds, stair turns and any place where packaging or doors may need to be removed according to the installation instructions.
Ranges and cooktops: check operating clearances
Measure the range space at more than one height because walls and counters can taper or project. Record the depth from the front edge to the wall and note doors, handles, windows or controls that could collide when opened. For a cooktop, measure the actual countertop cutout and the clear space below it; the product’s published cutout dimensions govern, not the nominal cooktop width.
Dishwashers: measure the opening and the service route
Measure dishwasher opening height at both sides and near the center, width at several points and depth to the rear obstruction. Mark the drain, water and electrical route and the side on which the door must open. Follow the selected manufacturer’s instructions for plumbing, electrical connection, leveling and any required air gap or high loop; these details vary by model and installation method.
Wall ovens and other built-ins: use cutout dimensions
For a wall oven or similar built-in, record the cabinet cutout width, height and depth separately from the appliance’s exterior dimensions. Note the support structure, ventilation openings and electrical supply. A product can be smaller than the cabinet opening yet still require a particular support, air space or door-clearance arrangement.
Check clearances against the exact installation guide
Nominal labels such as “30-inch range” or “36-inch refrigerator” do not establish fit. The selected model’s current installation document controls the required opening, ventilation, wall distance, rear space, side clearance, door swing, anti-tip or support details and utility connections.
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Build a model-specific fit record
- Write the exact model number and the date of the installation document you used.
- Copy the manufacturer’s required opening width, height and depth into your worksheet.
- Record every stated clearance, including space above, behind and beside the appliance.
- Compare each requirement with the tightest measured opening, not an average or nominal room dimension.
- Confirm that doors, drawers, handles and controls can operate without striking walls, trim or neighboring appliances.
- Confirm utility locations, circuit or gas requirements, ventilation and any support or anti-tip provisions.
If a measurement falls short, do not assume a filler, trim piece or “standard” clearance will solve it. Rework the layout, choose a model with different requirements or obtain a qualified design and installation review before ordering.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Measure the delivery route before you buy
“Before choosing a new kitchen appliance, make sure it can be brought into your home.”
— The Home Depot, “How to Measure for Kitchen Appliances,” updated September 23, 2026
Measure every doorway, hallway, stairwell and turn between the unloading point and the kitchen. Record the narrowest clear width and the lowest height along the route. Include door thickness, trim, handrails, ceiling obstructions, thresholds and corners where the appliance must rotate. Compare the route with the packaged and unboxed dimensions specified by the retailer or manufacturer, and verify whether doors, handles or packaging may be removed by the delivery team.
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Reconcile the sketch before sending it to a designer
Add the wall segments and openings
For each wall, add the measured segments, openings, trim zones and jogs. Compare that total with the original corner-to-corner wall measurement. Lowe’s Pro Supply recommends this wall-segment cross-check because a small omission can shift every downstream cabinet position.
Repeat any number that does not reconcile
If the components do not add up, check whether you measured to the wrong side of trim, missed a recessed section, double-counted an opening or used a different reference corner. Repeat the physical measurement and correct the sketch before using it for an order. Do not “force” the arithmetic to match by adding an unmeasured allowance.
Use a final measurement worksheet
| Category | Information to record | Verification |
|---|---|---|
| Room envelope | Wall labels, corner-to-corner lengths, ceiling height, soffit height and depth | Wall segments reconcile to each overall wall |
| Openings | Window and door width, height, sill or threshold, trim and offset from reference corner | Swing and casing shown on plan |
| Obstructions | Posts, radiators, vents, pipes, ducts, ledges and panels with size and offsets | Photos attached and fixed/removable status noted |
| Utilities | Sink center, water, drain, gas, outlets, switches, lights and HVAC with heights | Hidden locations labeled as estimates |
| Appliances | Model, unit dimensions, opening dimensions and tightest readings | Current installation guide checked |
| Access | Entry doors, halls, stairs, turns and narrowest clearances | Route compared with delivery dimensions |
Common measuring failures and how to correct them
Measuring only the front of an opening
Symptom: The appliance fits the front measurement but binds at the back or top.
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Correction: Measure width, height and depth at multiple points and use the tightest usable dimension for the fit decision.
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Using nominal appliance sizes
Symptom: A unit described by a rounded width appears to fit, but its installation guide requires a larger opening or additional clearance.
Correction: Record the exact model and compare the measured opening with the model-specific dimensions and clearances.
Locating utilities by eye
Symptom: A cabinet plan places a sink, range or dishwasher near a connection that is not actually where the sketch shows it.
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Correction: Measure each visible connection from a fixed corner or centerline. Mark concealed services as estimates and confirm them before construction.
Ignoring trim and door movement
Symptom: A cabinet or refrigerator body fits, but a door, drawer, handle or hinge collides with casing or a neighboring surface.
Correction: Draw the swing, measure hinge-side and handle projection, and check operation at the same time as the body dimensions.
Skipping the delivery route
Symptom: The appliance fits the kitchen opening but cannot pass a doorway, stair turn or hallway.
Correction: Measure the entire route before purchase and compare its narrowest points with the delivery requirements.
Ordering from an unreconciled sketch
Symptom: Wall segments, openings and offsets do not add to the wall’s measured length.
Correction: Repeat the measurements and correct the plan. A discrepancy is a reason to stop, not a gap to fill with an assumption.
Know when the plan needs professional confirmation
Use the sketch to communicate conditions to a cabinet designer, contractor or installer, but have dimensions confirmed before ordering custom or fitted cabinetry. A site visit is especially important when walls are out of square, floors or ceilings are uneven, utilities are concealed, structural features may be affected, or an appliance requires new gas, electrical, plumbing or ventilation work.
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Cabinet and appliance fit varies by model, installation method and local conditions. The final review should confirm the room measurements, cabinet dimensions, appliance cutouts, service locations, clearances and delivery route together. Keep the dated model installation guides with the plan so substitutions can be checked rather than assumed equivalent.
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