There’s something deeply frustrating about opening the cabinet under your bathroom sink and watching three bottles fall out at once. That tangled mess of cleaning supplies, hair tools, and random toiletries has a way of making even a clean bathroom feel chaotic.
You’ve probably tried tossing a few bins under there, hoping things would stay put. But DIY under bathroom sink storage isn’t about throwing containers at the problem — it’s about working with that awkward space around pipes, odd cabinet shapes, and limited depth so everything actually has a home.
This guide gives you 9+ specific, buildable ideas that solve real under-sink problems. Each one is practical enough for a weekend project and smart enough to keep things organized for months, not days. Let’s get into the first one.
1. Tension Rod Cleaning Spray Holder
A simple spring-loaded tension rod mounted halfway up your under-sink cabinet turns dead vertical space into instant spray bottle storage. Hang bottles by their triggers so they dangle neatly in a row. It costs almost nothing and takes about two minutes to install.
Be realistic though — tension rods can slip if you overload them, especially in wider cabinets. Stick to four or five bottles max and press the rod firmly against both sides before loading anything up.
The cheapest fix is often the smartest one.
Here are a few things that’ll help pull this together:
- Adjustable Stainless Steel Tension Rod — Keeps your spray bottles hanging neatly inside any standard-size cabinet opening.
- Non-Slip Rubber End Cap Grips — Prevent your tension rod from sliding down with extra grip pads for smooth surfaces.
- Clear Under-Sink Drip Tray Liner — Catches any drips beneath hanging bottles with a low-profile waterproof mat for cabinets.
2. Stackable Pull-Out Drawer Bins
Building a set of small sliding drawers from plywood or thick acrylic gives you pull-out access to everything hiding in the back. Stack two or three short drawers on basic drawer slides mounted to the cabinet floor. You’ll never crawl around blindly reaching for something again.
One thing to watch — you’ll need to measure carefully around your pipes before cutting anything. Most under-sink cabinets have a P-trap right in the center, so plan your drawer widths to sit on either side of it.
Easy access kills clutter faster than any bin ever will.
These picks make the build easier:
- Compact Ball-Bearing Drawer Slides — Give your custom bins smooth pull-out action with mini slides designed for tight cabinet spaces.
- Pre-Cut Thin Plywood Craft Panels — Build lightweight sliding drawers for your cabinet with ready-to-size flat wood panels.
- Waterproof Drawer Liner Roll — Protect your DIY drawers from moisture with a peel-and-stick liner for bathroom cabinets.
3. Magnetic Strip for Bobby Pins and Small Metallics
Mounting a magnetic strip to the inside of your cabinet door instantly corrals bobby pins, tweezers, nail clippers, and small metal grooming tools. It keeps those tiny items visible and off the cabinet floor. The whole setup takes one strip and two screws.
Worth knowing — magnetic strips only work with ferrous metals. Aluminum tweezers or plastic-coated clips won’t stick. Test your items with a fridge magnet first to avoid disappointment.
Small things need a home too, or they’ll take over everything.
Grab these to get it done:
- Heavy-Duty Adhesive Magnetic Tool Strip — Hold bobby pins and grooming tools on your cabinet door with a strong wall-mount magnet bar.
- Stainless Steel Mini Tweezer Set — Stay organized on your new magnetic strip with a compact metal tweezer collection for daily use.
- Small Magnetic Parts Tray — Catch any overflow from your strip with a shallow magnetic dish for tiny bathroom accessories.
4. Over-the-Pipe Tiered Shelf Riser
That curved drainpipe steals usable space, but a U-shaped shelf riser built to straddle the pipe reclaims it instantly. Cut a notch in a simple two-tier shelf so it hugs the pipe without touching it. Suddenly you’ve got organized layers where there was just wasted air.
Fair warning — don’t build the shelf so tight against the pipe that you can’t access the P-trap if it needs maintenance. Leave at least an inch of clearance on all sides so a wrench can still fit in there.
Work around the pipes instead of pretending they don’t exist.
These make the project straightforward:
- Expandable Under-Sink Shelf Organizer — Create tiered storage around your pipes with an adjustable two-level rack for bathroom cabinets.
- Waterproof Foam Pipe Insulation Wrap — Protect your shelf from condensation drips with a soft foam sleeve for exposed bathroom pipes.
- Slim Stackable Clear Storage Bins — Fill your new shelves with see-through containers that fit snugly in tight under-sink spaces.
5. DIY Labeled Mason Jar Caddy
Screw the lids of mason jars to the underside of a shelf or directly to the cabinet ceiling. Then twist the jars on and off whenever you need cotton balls, Q-tips, bath salts, or hair ties. It looks charming and uses space nobody else thinks about.
Here’s the honest truth — glass jars in a bathroom cabinet can crack if they bump against pipes or each other. Use plastic mason jar alternatives if you’re worried, or add a small felt pad between each jar for cushion.
Look up. That ceiling inside your cabinet is free real estate.
These help you put it together:
- Wide-Mouth Plastic Mason Jar Set — Store cotton balls and bathroom essentials in shatter-proof jars that mount under cabinet shelves.
- Pre-Cut Chalkboard Label Stickers — Keep every jar identified at a glance with reusable peel-and-stick labels for organized storage.
- Short Stainless Wood Screw Pack — Attach jar lids securely to your cabinet shelf with rust-resistant screws sized for thin boards.
6. Fabric-Lined Door-Mount Pocket Organizer
Sewing or buying a fabric pocket organizer for the inside of your cabinet door puts flat items like face masks, sample packets, and hair tool pouches right where you can grab them. It’s soft, lightweight, and won’t scratch the door surface.
The catch here — heavy products like full-size bottles will stretch the fabric pockets and eventually pull the whole organizer off the door. Keep it light. Stick to flat, under-four-ounce items for each pocket.
The best organizer disappears when the door closes.
These make it happen:
- Over-the-Door Mesh Pocket Organizer — Hang flat essentials inside your cabinet door with a slim multi-pocket fabric holder.
- Clear Vinyl Pouch Insert Set — Slide pouches into your organizer pockets for easy-wipe bathroom storage that resists moisture.
- Adhesive Door-Mount Hook Strips — Secure your fabric organizer without drilling using strong removable adhesive strips for cabinet doors.
7. Lazy Susan Corner Turntable
A rotating turntable placed on the cabinet floor brings everything in the back within reach with one spin. It’s perfect for skincare bottles, lotions, and cleaning supplies that always migrate to the darkest corner. No building required — just place and load.
Something to keep in mind — standard lazy Susans are round, and most under-sink cabinets are rectangular. You’ll lose some corner space. Look for a D-shaped or half-moon turntable to maximize the fit against the back wall.
Stop reaching. Start spinning.
Pick these up for a quick win:
- Non-Skid Bathroom Cabinet Turntable — Bring back-corner products within easy reach with a rotating platform designed for bathroom cabinets.
- D-Shaped Half-Moon Lazy Susan — Maximize rectangular cabinet space with a flat-backed turntable that sits flush against the wall.
- Removable Turntable Divider Clips — Keep bottles upright while spinning with snap-on section dividers for lazy Susan organizers.
8. PVC Pipe Hot Tool Holster
Cut PVC pipes into short tubes, mount them vertically inside the cabinet, and you’ve got dedicated holsters for curling irons, flat irons, and hair dryers. Each tool slides into its own slot, cords and all. It keeps hot tools separated and off the cabinet floor.
A heads-up on this one — always let your tools cool completely before storing them in PVC. Standard PVC can soften or warp above 140°F. If you’re impatient, upgrade to heat-resistant CPVC pipe instead.
Every hot tool deserves its own parking spot.
These get you started:
- Pre-Cut White PVC Pipe Sections — Build custom hot tool holsters with smooth-cut pipe tubes sized for curling irons and dryers.
- Strong Adhesive Pipe Mounting Clips — Secure your PVC holsters to the cabinet wall without screws using heavy-duty stick-on clamps.
- Heat-Resistant Silicone Cabinet Mat — Line the base of your tool holsters with a silicone pad that handles residual warmth safely.
9. Command Hook Cord Management Grid
A grid of adhesive command hooks along the cabinet wall creates a cord management system for every appliance that lives under the sink. Wrap each cord around its own pair of hooks — no tangling, no knots, no cords draped over bottles. It takes five minutes and looks obsessively tidy.
Real talk — command hooks need clean, dry surfaces to bond properly. Wipe the cabinet wall with rubbing alcohol first, then press each hook firmly for thirty seconds. Skip this step and they’ll pop off within a week.
Tamed cords make the whole cabinet feel twice as big.
These keep it neat:
- Small Clear Adhesive Utility Hooks — Mount a cord-wrapping grid inside your cabinet with low-profile removable hooks for bathroom use.
- Reusable Silicone Cable Tie Wraps — Bundle excess cord length before hooking with flexible ties that won’t damage appliance wires.
- Rubbing Alcohol Surface Prep Wipes — Get maximum adhesive hold by cleaning your cabinet walls with quick-dry prep pads before mounting.
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