Home improvement • Cabinet storage

Under-Sink Storage: How to Measure Before You Buy

Choosing the organiser format? Compare under-sink drawers vs baskets after recording your cabinet measurements.

A storage organiser can fit inside a cabinet and still be awkward to use. Pipes may interrupt the top shelf, a door hinge may block a drawer, or a tall bottle may prevent a tray from sliding. When choosing under-sink storage, measure the usable space and its access route before comparing product photos.

This is a planning guide, not a hands-on product test. As an Amazon Associate I earn from qualifying purchases. Product reviews linked below contain affiliate links.

Start with the items you actually need to store

Empty the cabinet and group the items you intend to put back. Keep products in their original labelled containers and follow their storage instructions. Measure your tallest bottle and widest container; an organiser’s outside height does not tell you whether either will fit inside its compartments.

Quick recap: under sink storage

When it comes to under sink storage, the best choice depends on your space, your budget and how you use it every day. Write down your key measurements, compare the features that matter to you, and choose the option that fits comfortably.

Use this under sink storage guide as a checklist, and come back to it whenever your needs change. A short, honest comparison of under sink storage now saves you from a costly return later.

Before you decide, review your under sink storage notes once more. Keep a simple under sink storage checklist next to your tape measure.

A careful under sink storage routine takes minutes and prevents mistakes. Share this under sink storage guide with anyone helping you choose.

Revisit the under sink storage steps above if your room or budget changes. Small habits make under sink storage decisions faster and easier.

For general background, see U.S. Department of Energy.

Separate everyday items from occasional supplies. Frequently used bottles need easy access, while spare sponges may suit a smaller drawer. Decide whether you need a pull-out basket, a removable caddy or enclosed drawers before shopping. Buying several identical boxes first can leave the pipework surrounded by storage you cannot open.

Record four different measurements

1. The door opening

Measure the clear opening with the door in its normal open position. Include hinges and any centre divider. A unit narrower than the inside of the cabinet may still be too wide to pass through the entrance. Check whether the organiser arrives assembled and whether the instructions permit assembly inside the cabinet.

2. The usable floor area

Measure width and depth at the position where the organiser will stand. Note raised edges, uneven bases and hardware. Use a sheet of paper or cardboard to mark the proposed footprint. This simple mock-up helps reveal whether two organisers will compete for the same space.

3. The pipe-free height

Measure beneath the lowest obstruction at several points. A drain trap creates a different shape from a straight vertical pipe. Sketch its location instead of recording only one maximum cabinet height. Preserve access to valves and fittings rather than designing storage around covering them.

4. The open-drawer space

Check how far a drawer or basket must travel to become useful. Measure outside the cabinet as well as inside it. A bin, nearby appliance or half-open door may interrupt that movement. For a fixed shelf, consider whether you can remove the back item without unloading everything in front.

Compare dimensions in a useful order

Start with the manufacturer’s assembled external dimensions, then check internal compartment sizes, opening clearances and installation requirements. Confirm whether a quoted height includes handles or an upper basket. Do not assume two stackable units have exactly twice the height of one; connectors and overlapping edges can change the assembled measurement.

For example, a cabinet opening measuring 40 cm across does not establish that a 39 cm unit will work. Hinges, an angled insertion path or a projecting handle may consume the remaining clearance. This is an illustrative fit problem, not a universal minimum-clearance rule.

Drawers, baskets or a portable caddy?

Drawers separate small items and make contents easier to group, but need enough space to open. Open baskets can accommodate varied shapes, although small items may need another container. A portable caddy suits supplies you carry elsewhere, provided the full load is manageable for you. Choose around the access problem you have, rather than the storage capacity shown in a staged photo.

IKEA’s UTRUSTA under-sink organiser illustrates another format: side-mounted storage. Its installation and dimensions are specific to that product; check compatibility rather than treating the example as a recommendation for every cabinet.

Before you place an order

Save your opening width, usable depth, pipe sketch, tallest-item height and required drawer travel. Compare those with the exact selected variant, mounting method, supplied hardware and return terms. Resolve unclear dimensions with the seller before ordering.

For one drawer-based option, read our Vtopmart storage drawers review. It explains the identified package and buying limitations; this guide does not establish that those drawers fit beneath your sink. For awkward corners that need cleaning before organising, see the OXO brush set assessment.

Common questions: under sink storage

Should I measure with the cabinet door open?

Yes. Check the opening and movement with the door in the position you will actually use. Include hinge projections and a centre divider.

Can I stack drawers around the drain?

Only when the product allows that configuration and the assembled stack fits without obstructing access. Check the actual stacked dimensions and stability instructions.

Explore more Home Improvement buying guides, or compare rechargeable and plug-in cabinet lighting for another small-space project.