The Quick Rundown
If you are short on time, here are the core principles of under sink organization:
- Start with a clean slate: Empty the entire cabinet, wipe it down, and throw away expired products or items you no longer use.
- Measure around the obstacles: Take exact measurements of the width, depth, and height, noting exactly where the pipes and garbage disposal hang down.
- Protect the base: Always install a waterproof shelf liner or drip tray before putting anything back in.
- Think vertically: Use stackable drawers or tiered shelving to maximize the empty air space above the floor of the cabinet.
- Use pull-out mechanisms: Sliding drawers and lazy Susans prevent you from having to dig around in the dark back corners.
- Decant for space: Remove items from bulky original packaging and place them in uniform, clear containers.
- Categorize by zone: Keep daily-use items in the front and specialty cleaners or bulk refills in the back.
- Utilize the doors: Install over-the-door caddies or adhesive hooks to hold lightweight items like gloves and scrub brushes.
The cabinet under the sink is arguably the most difficult storage space in any home. It is a cavernous, dark box interrupted by plumbing pipes, garbage disposals, water filtration systems, and the occasional leak. Because it lacks built-in shelving, it often becomes a dumping ground for half-empty cleaning bottles, spare sponges, and an unruly collection of plastic bags.
However, conquering under sink organization is entirely possible. By treating this awkward space like a miniature pantry and implementing vertical storage solutions, you can transform this chaotic catch-all into a highly functional command center. This comprehensive guide covers the step-by-step process of organizing the space under both kitchen and bathroom sinks, the best products to use, and how to maintain the system long-term.
Step One Is the Complete Empty Out
The first step toward under sink organization is a complete reset. It is easy for this area to become a black hole of half-used sprays and forgotten supplies. Before you can make meaningful improvements, you need to see exactly what you are working with [1].
Start by removing every single item from beneath the sink. Set everything out on a towel or a clear section of the floor so you can evaluate what has actually been taking up space. This process alone will likely reveal expired products, duplicates, or items that simply do not belong there, such as a rogue screwdriver or a broken scrub brush.
Once everything is out, sort the items into clear categories. For a kitchen sink, this typically includes everyday cleaning supplies (all-purpose sprays, disinfecting wipes), specialty items (stainless steel polish, oven cleaner), dishwashing essentials (dishwasher pods, dish soap, scrub sponges), and tools (rubber gloves, sink stoppers). For a bathroom sink, categories might include hair care, skincare, oral hygiene, and bathroom cleaning supplies.
This is the ideal time to identify what you use most and what you can eliminate. Anything that is expired, crusted over, or has not been used in the last six months should be responsibly discarded or recycled.
Step Two Is Prepping and Protecting the Cabinet
With the space completely empty, take advantage of the moment to give the cabinet a proper refresh. Use a vacuum or a handheld duster to clear out any debris that has built up in the corners. Then, wipe down all surfaces with a disinfectant spray or a simple vinegar and water solution [1].
Pay special attention to the edges, corners, and especially the base of the cabinet. These areas often collect spills or mold from leaking bottles and wet sponges. If there has been a past spill or a lingering smell, you might even consider lightly sanding the base panel (if it is wood) and resealing it.
To make future upkeep easier, you must add a washable or waterproof shelf liner. This creates a barrier between the cabinet and your products, helping prevent water damage and making cleanup much faster the next time a bottle leaks [1]. Choose a liner with a non-slip grip or one that is textured to prevent items from sliding around each time you open the doors. Alternatively, a silicone drip tray with a raised lip offers excellent protection against minor plumbing leaks.
Step Three Is Measuring and Planning the Layout
Before buying bins or stuffing anything back under the sink, it is essential to take a step back and assess the space. The area beneath the sink is notorious for being awkward. There are usually pipes, water lines, garbage disposal units, or oddly placed supports that limit your storage options [1].
Start by grabbing a measuring tape and taking down the full width, depth, and height of the under-sink space. Then, measure around key obstacles like the plumbing or water filter system so you can plan storage around them. Do not forget to note how far the cabinet doors open and if there is a center divider or lip that could get in the way of sliding drawers. Using painter’s tape to map out where organizers or bins will sit is a great way to visualize spacing before making a single purchase [1].
The most effective under-sink systems work vertically rather than horizontally, meaning stackable solutions are your best friend. Look for adjustable or tiered shelving units that leave space for plumbing underneath while giving you usable surface area above [1].
The Best Under Sink Organization Systems
Because under sink cabinets lack built-in shelving, you have to create your own architecture. Here are the most effective systems for dividing and conquering the space.
U-Shaped and Expandable Shelving
Expandable shelving units are designed specifically for the under-sink dilemma. These units feature sliding metal or plastic panels that can be adjusted horizontally to fit the width of your cabinet. More importantly, the individual shelf panels can be removed or rearranged to allow the plumbing pipes to drop straight through the middle of the unit. This allows you to utilize the vertical space on either side of the pipe without interference.
Sliding Drawers and Pull-Outs
The biggest issue with deep cabinets is that items get pushed to the back and forgotten. Pull-out drawers solve this problem entirely. Lory Bernstein, a design expert, notes that the key to organizing a large, undefined space is being able to access items at the back of the cabinet [2].
“This is why pull out drawers are essential to ensure it’s easy to see and reach everything in the cabinet,” Bernstein explains [2]. “Instead of reaching over products and knocking everything over, you can see exactly what’s in the cabinet and access it with far less effort.”
When selecting sliding drawers, ensure you measure the clearance needed to pull the drawer all the way out, taking into account the cabinet door hinges and any center stiles.
Stackable Acrylic Bins
For smaller items, clear, stackable acrylic bins are incredibly effective. They allow you to build vertical columns of storage tailored to the exact height of your cabinet. Because they are transparent, you can easily see what is inside without having to unstack them. These are particularly useful in bathroom cabinets for categorizing makeup, travel toiletries, or first aid supplies.
Lazy Susans
A lazy Susan (a rotating turntable) is an excellent solution for the awkward front corners of an under-sink cabinet. By placing tall bottles of cleaning spray or hair products on a lazy Susan, you can simply spin the tray to access the item you need, rather than knocking over the front row of bottles to reach the back row. Look for models with a high lip or raised edge to prevent bottles from flying off when spun quickly.
Under Sink Organization Ideas for the Kitchen
The kitchen sink cabinet is the workhorse of the home, housing all your dishwashing supplies and heavy-duty cleaners.
Create a Cleaning Caddy
Instead of keeping all your cleaning sprays loose in the cabinet, place the ones you use most frequently into a portable cleaning caddy with a handle. This keeps them neatly corralled, and the handle allows the entire unit to be removed and carried to clean another room [2]. This simple step prevents the cabinet from becoming a jumbled mess of bottles.
Decant Bulky Packaging
Dishwasher pods, steel wool pads, and sponges often come in bulky, awkwardly shaped cardboard boxes or plastic bags that take up unnecessary space and look messy. Remove these items from their original packaging and decant them into clear plastic drawers or acrylic canisters [2]. This looks much cleaner and allows you to see exactly when you are running low on supplies.
Tame the Plastic Bags
If you save plastic grocery bags, they can quickly overtake the entire cabinet. Instead of stuffing them loosely under the sink, designate one specific container for them. Bernstein recommends choosing one deep bin for the bottom of the unit to store the melange of shopping bags [2]. Once that bin is full, you must recycle any additional bags rather than letting them spill out into the cabinet.
Under Sink Organization Ideas for the Bathroom
Bathroom sink cabinets present a different challenge, as they usually need to hold a high volume of small, varied items rather than large bottles of cleaner.
Organize by Routine
In the bathroom, organize your items based on your daily routine rather than strictly by category. Create a “morning routine” bin containing your daily moisturizer, deodorant, and hairbrush, and an “evening routine” bin for makeup remover and night creams. This prevents you from having to open multiple different containers just to get ready for the day.
Manage Hair Tools Safely
Hair dryers, curling irons, and straighteners are bulky and come with long, tangled cords. Never store them loosely in the cabinet. Instead, use an over-the-door wire rack specifically designed for hot tools. These racks often feature metal cups that can safely hold tools even while they are cooling down, keeping the cords wrapped and off the cabinet floor.
Utilize the Inside of the Doors
The inside of the cabinet door is prime real estate that is often ignored. Install adhesive acrylic bins or Command hooks to the inside of the door to hold lightweight items. This is the perfect spot for storing makeup brushes, extra toothbrushes, or small bottles of nail polish remover.
Common Mistakes to Avoid
When tackling under sink organization, be sure to avoid these common pitfalls:
- Forgetting the pipes: The most common mistake is buying a beautiful storage unit that fits the dimensions of the cabinet but hits the P-trap or the garbage disposal. Always measure the clearance around the plumbing first.
- Storing paper goods: Never store paper towels, toilet paper, or cardboard boxes directly on the floor of the under-sink cabinet. Even a minor, unnoticed leak can ruin these items and create a soggy, moldy mess.
- Ignoring the vertical space: If you only place items on the floor of the cabinet, you are wasting 70 percent of the available space. You must use stackable bins or shelves to build upward.
- Overstuffing: The under-sink cabinet should not be a hoarding ground. If you have to forcefully shove items in to make the door close, you have too much stuff. Keep only the essentials and store bulk refills in a utility closet or garage.
Maintaining the System
Once you have established a functional under sink organization system, keeping it tidy requires minimal effort if you follow a few basic rules.
First, adopt the “one-in, one-out” rule. If you buy a new bottle of glass cleaner, you must use up or discard the old one. Do not allow half-empty bottles to multiply in the back of the cabinet.
Second, perform a quick visual audit every few months. Because the under-sink area is prone to moisture, it is important to periodically check for slow leaks or condensation. While you are checking the pipes, take five minutes to toss any empty bottles or expired products that have snuck their way back into the space.
By respecting the awkward architecture of the under-sink cabinet and utilizing smart, vertical storage solutions, you can turn your home’s most frustrating storage space into a model of efficiency.
