Small Apartment Organization

How to Organize Apartment Building Storage (Locker, Cage, or Basement Cubby)

By The Small Apartment team · Published · Updated

A narrow storage aisle packed with shelves, stacked bins, and a ladder, with a walking path still open
A narrow storage aisle packed with shelves, stacked bins, and a ladder, with a walking path still open. Photo via Unsplash.

An apartment storage locker, wire cage, or basement cubby is not a second closet for whatever does not fit upstairs. It is a locked shelf for bulk and seasonal things.

Apartment building storage works when you can name every bin from the doorway. What you use every week stays in the apartment. The cage holds the rest, and only the rest. If the unit is on the laundry floor, one bin of detergent and paper goods can sit where you already walk with a basket. Valuables stay upstairs.

The apartment itself still needs a home for daily stuff. Start with how to declutter a small apartment if the locker is full because the rooms never got edited. Anything you add inside the cage should sit in place. Renter-friendly storage with no drilling is the rule for shelves and rods you are allowed to use, including in a shared basement you do not own.


Key takeaways

  • Weekly items stay in the apartment. The locker is bulk and seasonal only.
  • Measure width, depth, height, and the door swing. Use the smallest number.
  • Clear lidded bins, heavy ones on the bottom, labels facing the door.
  • Leave a path you can walk with a laundry basket in front of you.
  • Keep one detergent bottle in use upstairs. Extra jugs can live by the laundry floor.
  • No valuables, papers, food, fuel, paint, or anything the lease bans.

What Belongs in the Locker?

Three piles. Only one of them goes in the cage.

  • Bulk and seasonal. Extra paper towels, a case of detergent you will not open until the bottle upstairs is empty, holiday decorations, a suitcase, off-season coats, camping gear you will not touch until the next trip. These can live downstairs.
  • Garden bags. Spare bags of potting soil, mulch, or gravel for balcony planters can go down too, sealed. Count what a planter or raised bed actually needs with the cubic yard calculator so you are not storing ten extra bags.
  • Weekly. The pan, the toothbrush, this week's groceries, the coat you wear now, medicine, chargers, the detergent bottle that is open. These stay in the apartment. A basement trip is a bad system for Tuesday morning.
  • Never. Passports, leases, jewelry, cash, a laptop, anything you cannot replace, food that can spoil, and anything the lease calls out. Fuel, propane, gasoline, and paint are common bans. If the lease is quiet, still leave fuel out. A cage full of cans is a problem for every neighbor on that floor.

The photo on the cover is a packed storage aisle: shelves, bins, a ladder, and a path that is still open. That path is the part to copy. A cage you cannot walk into is not organized. It is a pile with a lock.


How Do You Set Up a Storage Locker?

Step 1: Empty it before you buy bins

Step card: empty the cage before you buy bins. Photo shows a low basement cubby with boxes, cushions, loose cables, and foil-faced insulation.
Step 1. A cubby full of loose boxes is the before picture. Pull it out before you shop for bins.

The photo is a low storage space: boxes, cushions, cables, and foil-faced insulation on the wall. It is a basement cubby, not a tidy locker. That is the honest starting point for a lot of building storage. You cannot label what you have not seen.

Pull everything into the aisle, or onto a tarp if the floor is damp. Sort in the basement so you are not hauling junk up the stairs twice.

  • Keep what is bulk or seasonal and still useful.
  • Take weekly items back upstairs the same day.
  • Carry out trash, broken gear, and mystery boxes you cannot name.
  • If a box has been in the cage since you moved in and you do not know what is in it, open it now.

Damp cardboard does not get a second chance on a wet floor. If the bottom of a box is soft, move the contents into a plastic bin before it goes back.

Step 2: Leave out what does not belong

Step card: fuel does not belong in an apartment storage cage. Photo shows red propane tanks locked inside a metal cage outdoors.
Step 2. These tanks are in a cage built for fuel. An apartment storage cage is not that cage.

The photo is red propane tanks in a metal cage. That cage is for fuel, outdoors, with a lock meant for tanks. Your building locker is a different object. Do not copy the contents.

Leave these out of apartment building storage:

  • Propane, gasoline, lighter fluid, and other fuel.
  • Paint, solvents, and oily rags.
  • Perishable food, including "just for now."
  • Documents, valuables, and anything you would file a claim over.
  • Anything your lease or the house rules name as banned.

Read the lease line about storage before you carry a can down. If you are unsure, ask the office and keep the item upstairs until you have an answer. A fine, or a cage the building empties, costs more time than storing a paint can in a closet you already have.

Step 3: Measure the cage, including the door

Step card: measure the cage at shelf height, including the door swing. Photo shows hands holding a yellow tape measure on a plywood sheet and marking it with a pencil.
Step 3. The tape in the photo is on a board, not a cage. Measure your locker the same way: at the height the shelf will sit.

The photo shows a yellow tape on plywood, with a pencil mark. It is a workshop board, not a basement. The method is the same. Measure where the bin will actually sit, not at a convenient spot by the door.

Write four numbers:

  • Width inside the frame, at shelf height. If the walls are not parallel, use the narrowest spot.
  • Depth from the back to the inside of the closed door.
  • Height from the floor to the lowest pipe, sprinkler, or ceiling, and the gap between shelves if shelves are already there.
  • Door swing. Open the door and see what it hits. That arc is not storage.

Buy a bin that is shorter than the smallest of those numbers, and shallow enough that you can still pull it out. A bin that fills the depth will block the door or the path. If you need a shelf, use one that stands on its own feet. Do not drill the cage, the concrete, or a neighbor's wire wall. Standing shelves and bins are the no-drill option in renter-friendly storage.

Step 4: Use clear bins and labels that face the door

Step card: label bins so the name faces the door. Photo shows clear bins on metal shelves in a work van, with blue tape codes on the fronts.
Step 4. This is a work van, not a basement. Copy the clear bins and the tape labels that face you.

The photo is the inside of a work van: clear bins on metal shelves, blue tape codes on the fronts. You do not need the van. You need the habit. A label you can read without pulling the bin is the whole system.

  • Clear bins with lids. You can see a spare blanket. You cannot see through a black tote.
  • One category per bin. "Winter" is fine. "Misc" will get opened forever.
  • Tape and a marker. Write on the side that faces the door, not on the lid you only see from above.
  • Heavy bins on the bottom. Light bins, and anything you grab on laundry day, at waist height.
  • Leave a path as wide as you are, plus the laundry basket you carry in front of you. If you have to climb, the cage is too full.

Stack only bins that are the same size, and only two high if you still need the top one. A tower you cannot lift down is the same as a locked box.

Step 5: Put laundry backups where you already walk

Step card: keep backup detergent where you do laundry. Photo shows two laundry bottles beside a top-loading washer, with a shirt going in.
Step 5. Two bottles next to a machine. Your locker gets the backup jug, not every product you own.

The photo is two laundry bottles beside a top-loader, and a shirt going into the drum. It is a machine, not a locker full of weekly supplies. That is the right amount of product to have in arm's reach.

If your cage is on the laundry floor, give detergent and paper goods their own bin by the front of the locker. You should be able to take that bin to the machines and put it back without moving the suitcase.

Keep the open bottle in the apartment, next to the hamper or in the spot you already use for laundry. The small laundry room organization guide covers the corner inside your unit. The locker is only the backup, and only when the walk to the cage is the same walk as the walk to the washer.

If the locker is in a basement far from the machines, do not store the detergent there. You will buy a third bottle because the first two are never where you are.

Step 6: Lock it, and leave a path

Step card: lock the cage with the lock the building allows. Photo shows an old door with a key sitting in the lock.
Step 6. A key in the lock. Use the lock your building expects, and take the key upstairs.

The photo is an old door with a key left in the lock. The useful part is the lock, not the habit of leaving the key in it. A cage that does not latch is a shelf for the whole building.

  • Use the lock the office gave you.
  • Add your own lock only if the rules allow it. If management has to be able to open the cage, your extra lock is the wrong kind.
  • Keep the key on the same hook as your apartment keys. A key that lives in the junk drawer will be the reason the locker goes unused.
  • Shut the door even for a five-minute trip upstairs. Shared basements are not private.

Once a season, open the cage with the labels facing you. If a bin has no name, it comes out. If you needed something from it every week, that thing moves back into the apartment.


What Goes Where?

ItemWhere it goesWhy
Open detergent bottleApartment, by the hamperYou use it on laundry day without a basement trip
Extra detergent, if the locker is on the laundry floorFront bin in the cageSame walk as the machines
Extra detergent, if the locker is a long walkApartmentA far cage becomes a forgotten bottle
Paper towels you will not open this weekLabeled binBulk, not this week's roll
This week's groceriesApartmentFood does not belong in a shared basement
Off-season coat, suitcase, holiday binLocker, heavy items lowYou do not need them weekly
Passport, lease, jewelry, laptopApartmentA cage is not a safe
Propane, gasoline, paintNot in the cageLease and fire risk
Loose mystery boxesOutIf you cannot name it, it does not go back

Vertical checklist infographic for an apartment storage locker: empty the cage, leave fuel and valuables out, measure the door swing, label bins facing the door, keep detergent by the laundry floor, and lock it.
All-steps checklist for a locker, cage, or basement cubby.

When Is the Locker Finished?

You are done when you can see a path, read every label from the door, and lock it on the way out. Weekly life still happens upstairs.

Daily systems for the rooms you actually live in are in small apartment organization. More guides in this category are in small apartment organization.

Printable Storage Locker Checklist

Frequently asked questions

What should go in an apartment storage locker?
Bulk goods you will not open this week, and seasonal items such as holiday bins, a suitcase, or a coat you do not wear until the weather changes. If you need it every week, it stays in the apartment.
What should never go in building storage?
Valuables, passports and other documents, anything you would hate to lose, perishable food, and anything the lease forbids. That often includes fuel, propane, paint, and other flammables. Read your lease before you carry a can downstairs.
How do I measure a storage cage before buying bins?
Measure the inside width, the inside depth with the door closed, and the clear height of the shelf or the space from floor to the lowest pipe or ceiling. Then open the door and mark where it swings. Buy bins that fit the smallest of those numbers, with room to pull a bin out.
Where should laundry detergent go if the locker is near the machines?
Keep the bottle you are using in the apartment. Put backup detergent and extra paper goods in one labeled bin in the locker, if that locker is on the same floor as the machines. You should be able to grab that bin without unpacking the cage.
Can I add my own lock?
Use the lock the building issued. Add a lock of your own only if the lease or the house rules allow it. Some buildings need to open every cage. A lock they cannot open can become a lease problem.
How do I keep the cage from turning into a junk pile?
Nothing goes in without a bin and a label facing the door. If you cannot name it, it does not get a shelf. Leave a walking path. Once a season, pull anything you did not touch and take it upstairs to decide, or out of the building.

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