Draw the obstructions from two viewpoints
A front sketch shows height and left-right position; a top sketch shows how far pipes project from the back. Mark each bend, not just the vertical drain. Also note the sink bowl, disposal unit, hoses and electrical equipment. Stop if you find leaking water, damage or unsafe wiring, and arrange the appropriate repair before planning storage.
Give each clear space a separate identity
Label spaces L, R and F for left, right and front. Measure each as its own uninterrupted rectangular box. Do not combine the width of L and R in a single sizer run. A rigid organizer cannot occupy both spaces if its body crosses the pipe. Adjustable or cut-out designs need their own exact geometry checked against the manufacturer's drawing.
Choose removability over maximum coverage
A small freestanding bin can be lifted out to inspect a joint. A tall shelf that hides a valve may be less practical even if its outside dimensions fit. Keep cleaning items according to their labels, away from food, and secure them where necessary. Leave valve operation and equipment access unhindered; there is no universal service gap that works for every installation.
Use a physical insertion test
Make a cardboard outline of the widest assembled shape. Move it from the door opening to the final location in the intended orientation. Include handles and any protruding feet. If the template must flex or push a hose aside, the route has not passed. The calculator does not simulate rotating a basket around plumbing or assembling it inside a cabinet.
Review after a normal cleaning cycle
Remove everything for your next cabinet clean and see whether access is simple. Check that the organizer has not shifted against a pipe and that moisture is not trapped underneath. Change the layout if checking a joint or reaching a shut-off requires dismantling storage. The right solution leaves the cabinet useful for its primary plumbing role as well as for storage.
Your final check
Sources & method
The workflow and examples are Vlazi planning guidance. Unit conversion uses 25.4 mm per inch. Product examples use the assembled measurements on official IKEA pages, rather than packaging sizes or nominal titles.
Specifications reviewed October 30, 2026. See our editorial policy and affiliate disclosure. Send corrections to vlazidotcom@gmail.com.