Under Sink Storage Ideas for Kitchen and Bathroom

The space under the sink is one of the most underused areas in any home. Whether it is in the kitchen or bathroom, the cabinet below the sink usually ends up as a place to store things without a plan — cleaning bottles pushed to the back, extra supplies stacked without order, and items that are hard to reach without pulling everything out.

With a few simple organizers, the under-sink cabinet can become one of the most functional storage areas in your home.

This guide shares practical under sink storage ideas for both kitchen and bathroom cabinets, including how to work around the pipes and make the most of the available space.

Why Under-Sink Storage Is Often Wasted

The main challenge with under-sink cabinets is the plumbing. Pipes run through the middle of the space, which makes it harder to use standard shelves or bins. Most people end up placing items loosely around the pipes, which leads to a disorganized cabinet that is difficult to clean and hard to navigate.

The second challenge is depth. Under-sink cabinets are often deeper than they look, which means items at the back get forgotten. Without a system that brings things forward, the back of the cabinet becomes dead storage.

The right organizers solve both problems by fitting around the pipes and making the full depth of the cabinet usable.

1. Use a Pull-Out Organizer to Maximize Depth

A pull-out organizer is one of the most effective solutions for under-sink storage. Instead of reaching into the back of the cabinet, you pull the organizer forward and everything comes with it.

A 2-tier under sink organizer with pull-out baskets creates two levels of storage and fits around standard plumbing pipes. Use the lower level for taller bottles and the upper level for smaller items like sponges, soap refills, or cleaning cloths.

This type of organizer works well in both kitchen and bathroom cabinets and makes it much easier to see and reach everything stored inside.

2. Add a Slim Cabinet Beside the Sink

If the under-sink cabinet is already full or the plumbing takes up too much space, a slim freestanding cabinet placed beside the sink can add extra storage without requiring any installation.

A 4-tier slim storage cabinet with doors and wheels fits into narrow gaps and can hold cleaning supplies, extra toiletries, paper towels, or backup products. The doors keep the contents out of sight, and the wheels make it easy to move for cleaning.

This is especially useful in kitchens or bathrooms where the under-sink cabinet is small or awkwardly shaped.

3. Group Items by Category

One of the simplest ways to keep under-sink storage organized is to group similar items together. Keep all cleaning supplies in one area, extra toiletries in another, and backup products in a separate section.

Use small bins or baskets to keep each category contained. This makes it easier to find what you need and prevents items from getting mixed together over time.

Label the bins if the cabinet is shared with other household members, so everyone knows where things belong.

4. Use Stackable Containers for Smaller Items

Small items like sponges, soap bars, cleaning tablets, and cotton pads can get lost in a large cabinet. Stackable containers keep these items grouped and easy to find.

Stackable containers with lids work well for storing small bathroom or kitchen supplies. They can be stacked to use vertical space and pulled out as a unit when you need something inside.

5. Keep the Most-Used Items at the Front

Whatever you reach for most often should be at the front of the cabinet. Dish soap, hand soap refills, sponges, and everyday cleaning products should be easy to grab without moving other items out of the way.

Less-used items — backup supplies, seasonal cleaning products, or extra stock — can go toward the back or on a higher shelf if the organizer has multiple levels.

This simple habit prevents the cabinet from becoming disorganized after a few weeks of regular use.

6. Clean Out the Cabinet Regularly

Under-sink cabinets tend to collect items that are no longer needed — empty bottles, products that were tried once and abandoned, or duplicates that were bought by mistake.

A quick clean-out every few months keeps the cabinet from becoming overcrowded. Remove anything empty or expired, consolidate duplicates, and check that everything still has a logical place.

This is also a good time to wipe down the cabinet floor and check for any leaks around the pipes.

Final Thoughts

Under-sink storage works best when it is organized around how the space is actually used. A pull-out organizer makes the full depth of the cabinet accessible, grouping items by category keeps things easy to find, and a slim cabinet nearby can handle overflow.

Start with the cabinet that causes the most frustration — kitchen or bathroom — and add one organizer at a time. Once the system is in place, it takes very little effort to maintain.

For more bathroom storage ideas, read our guide on how to organize a small bathroom with practical tips for countertops, cabinets, and tight spaces.

Explore our kitchen storage and bathroom storage solutions to find organizers that fit your cabinets and your daily routine.

FAQ

How do I organize under the sink with pipes in the way?

Use a pull-out organizer or a two-tier shelf that is designed to fit around standard plumbing pipes. These organizers leave space for the pipes while still creating usable storage on both sides and above.

What should I store under the kitchen sink?

The kitchen sink cabinet works well for dish soap, sponges, cleaning sprays, trash bags, and extra supplies. Keep daily-use items at the front and backup stock toward the back.

What should I store under the bathroom sink?

The bathroom sink cabinet is a good place for cleaning supplies, extra toiletries, hair tools, cotton pads, and backup products. Use bins or a pull-out organizer to keep categories separated.

How do I keep under-sink storage organized long-term?

Put items back in the same place after each use, remove empty bottles right away, and do a quick clean-out every few months. Keeping the most-used items at the front makes the system easier to maintain.