What is the best way to store cleaning supplies under the sink?

Use a U-shaped pull-out tray that fits around the P-trap. Keep spray bottles upright in a vertical divider, and store heavy jugs on the bottom tray. Avoid stacking bottles directly on the cabinet floor, as leaks can damage the wood.

Can I install a pull-out drawer without removing the pipes?

Yes. Choose a ready-made pull-out with a cutout for the P-trap, or build a custom frame with a U-shape. These slide on the cabinet floor and don't require disconnecting any plumbing. Just measure the trap's position first.

How do I measure my under-sink space for an organizer?

Measure the clear width between side walls, the depth from the front frame to the back wall, and the height from the floor to the lowest point of the sink bowl. Also measure the horizontal distance from the front frame to the P-trap's vertical drop, and the trap's width.

Are door-mounted racks safe for under-sink cabinets?

They work for short, flat items only. Avoid tall bottles that can prevent the door from closing. Measure the gap between the door and the sink bowl; if it's under 2 inches, skip the rack. Use short screws on hollow doors.

Under-Sink Hidden Storage: What Works, What Doesn't, and What You're Getting Wrong

Myth: You Can Use Every Inch of the Cabinet

The most common mistake is treating the under-sink area like a blank box. In reality, the sink bowl, drain pipes, garbage disposal, and water lines occupy the center and rear. A pull-out drawer that slides straight back will hit the P-trap, and a lazy Susan will catch on supply lines. Trying to fill every inch usually leads to drawers that don't close or shelves that need constant re-arranging.

The reality is that under-sink space is a series of usable zones, not one open cavity. The front bottom floor, the side walls, and the inside of the cabinet door each offer different potential. Before buying any organizer, measure the clear floor depth from the front frame to the back wall, the width between side walls, and the height from floor to the lowest point of the sink bowl. Then map where the pipes actually sit—that determines what can go where.

A practical approach is to accept that the rear center is dead space. Instead, focus on the front and sides. A U-shaped or C-shaped pull-out that wraps around the pipes, rather than sliding through them, is the single most effective way to reclaim usable volume. These are available as ready-made units or can be built with a simple plywood frame and drawer slides.

Open cabinet under a kitchen sink showing a U-shaped pull-out organizer fitted around the drain pipes

Reality: Pull-Outs Beat Stationary Shelves for Deep Cabinets

A fixed shelf under the sink forces you to stack items in two layers. To reach the back of the bottom layer, you must pull everything out. Pull-outs solve this by bringing the entire contents to you. For a 24-inch-deep cabinet, a full-extension slide can make the back edge of the tray sit at the cabinet opening, so nothing is ever out of reach.

The key is choosing the right slide. Soft-close undermount slides rated for at least 75 pounds handle heavy cleaning bottles without sagging. For a custom build, use a slide rated for 100 pounds if you plan to store large jugs. Side-mounted slides are cheaper but reduce usable width by about an inch on each side. Undermount slides preserve the full interior width, which matters in a tight 15-inch-wide cabinet.

For a simple retrofit, consider a pull-out tray with a cutout for the P-trap. These are sold in standard widths (14, 18, 22 inches) and depths (16, 20, 24 inches). They sit on the cabinet floor and don't require removing the pipes. Measure the distance from the front frame to the trap's vertical drop, and choose a tray whose cutout matches. This is the lowest-effort way to gain full pull-out access.

Option	Best For	Installation Effort	Typical Cost
Ready-made U-shaped pull-out	Cabinets with centered P-trap	Screw-in, no pipe removal	$40–$90
Custom plywood frame with undermount slides	Odd-shaped or extra-deep cabinets	Moderate DIY, requires cutting	$60–$120 in materials
Fixed shelf with bins	Shallow cabinets under 14 inches deep	Minimal, just rest on shelf	$0–$30
Door-mounted rack	Adding vertical storage on the door	Screw into door panel	$15–$40

Myth: Door-Mounted Racks Always Work—Reality: They Can Block the Door Seal

Door-mounted racks seem like free real estate, but they often cause problems. A rack that holds tall spray bottles can push the door frame out of alignment, preventing the door from closing fully. Even a slim rack can interfere with the door's soft-close mechanism or the cabinet's internal hinges. The result is a door that pops open or a gap that lets in dust and pests.

The reality is that door storage works only for short, flat items. Sponges, scrub brushes, small spray bottles under 8 inches tall, and folded dish towels fit fine. Before buying, measure the distance from the inside of the door to the front edge of the sink bowl or any protruding pipe. If that gap is less than 2 inches, skip the door rack entirely.

If you do use a door rack, choose one with a lip or guard that keeps items from falling when the door swings. Also, check that the rack's mounting screws don't penetrate the door's outer veneer. For hollow-core cabinet doors, use short screws (no longer than 3/4 inch) or adhesive strips, though adhesive may fail in humid conditions.

Measure the door-to-sink gap before buying a door rack; 2 inches is the minimum.
Use short screws on hollow doors to avoid puncturing the exterior.
Reserve door racks for flat items only—sponges, scrubbers, small spray bottles.
Check the door seal after installation by closing the door fully and looking for gaps.

Reality: Vertical Dividers and Stacking Trays Make the Most of Height

Most under-sink cabinets have 10 to 14 inches of clearance between the floor and the sink bowl, but that height is rarely used. Stacking trays and vertical dividers turn that airspace into storage. A two-tier tray system can hold spray bottles on the bottom and small items like steel wool or sponges on the top, doubling your capacity without adding depth.

For cleaning supplies, vertical dividers (like those used for cutting boards) keep spray bottles upright and prevent them from tipping over. You can buy a bamboo or plastic divider that fits the cabinet width, or make one from a wooden dowel and a base. The key is to keep the tallest bottle accessible—place it at the front or side, not behind the pipe.

Another effective use of height is a pull-out with a raised back section. This lets you store tall bottles at the rear and shorter items at the front, using the vertical space that would otherwise be wasted. Some ready-made units include a stepped interior, but you can achieve the same by adding a small riser to a flat pull-out tray.

Two-tier stacking trays inside an under-sink cabinet with spray bottles and cleaning supplies

Myth: You Need to Remove the Pipes—Reality: You Can Work Around Them

Many DIY guides suggest relocating the P-trap or installing a shallow sink to free up space. That's a major plumbing job, and often unnecessary. The reality is that most under-sink storage solutions are designed to fit around existing pipes. You only need to remove pipes if you're installing a full-width drawer system that slides straight back, which is rarely the best choice.

Instead, work with the pipes. Use a U-shaped pull-out that straddles the trap, or a tray with a cutout. For side-mounted pipes, choose a narrower pull-out that slides on one side. If your pipes are flexible (braided supply lines), you can often push them to the back or side to gain an extra inch of clearance, but never bend rigid copper or PVC—that risks leaks.

If you do decide to change the plumbing, hire a licensed plumber. A plumber can sometimes raise the P-trap closer to the sink bowl or move it to the back wall, freeing up the center floor. That's a real solution, but it costs money and isn't a weekend DIY. For most people, a well-chosen pull-out that fits around the existing trap is the smarter move.