By Simon, Better Little Home · Updated November 2, 2026 · How we choose
That 5- to 8-inch gap beside the fridge or between the washer and dryer is one of the most useful spaces in a small home, and one of the easiest to get wrong. Buy a cart half an inch too wide and it scrapes the appliance every time you pull it out. Buy one too tall and top-heavy and it tips the first time a bottle shifts.
This guide starts with your gap, not the product. Measure first, use the table to find carts that actually fit, and read the buyer notes so you know which problems to expect.
Watch the short video: Got a 5-inch gap beside your fridge?
Quick picks
- Narrowest (under 5 in): SPACEKEEPER 4-Tier Slim Cart
- Tallest for a 5-inch gap: Lavish Home Slim Rolling Cart (52 in tall)
- Sturdiest feel: Utility 4-Tier Slim Cart with Handle
- Best for a kitchen gap: VASAGLE 5-Tier Slim Cart
Measure your gap in three places
- Width of the gap at the floor, the middle, and the top. Use the smallest number. Appliances are rarely perfectly square, and walls bow.
- Subtract at least ½ inch. A 5-inch cart in a 5-inch gap will drag. You want about ¼ inch of clearance on each side.
- Depth available: how far the cart can roll out before it hits a door, a cabinet, or your walking path. Most slim carts are 15 to 22 inches long.
- Height limit: check for a countertop overhang, a dryer lint door, or a fridge hinge above the gap.
- Floor check: small plastic wheels catch on tile grout and thresholds. On an uneven floor, choose a cart with a handle so you pull it straight instead of pushing from the top.
Keep vents clear. Dryers and refrigerators need airflow, so don’t pack a cart tight against a vent or a hot exhaust hose.
Size comparison at a glance
| Cart | Narrow side | Length × height | Fits a gap of at least |
|---|---|---|---|
| SPACEKEEPER 4-Tier | 4.9 in | 15.3 × 38.7 in | 5.5 in |
| Slim 3-Tier Bathroom Cart | 4.9 in | 15.3 × 26.1 in | 5.5 in (short, fits under a counter lip) |
| Lavish Home Slim Cart | 5 in | 21.5 × 52 in | 5.5–6 in |
| Utility 4-Tier with Handle | 5 in | 16.7 × 34 in | 5.5–6 in |
| VASAGLE 5-Tier | 5.1 in | 17.9 × 39.2 in | 6 in |
The carts, gap by gap
1. SPACEKEEPER 4-Tier Slim Rolling Storage Cart
Best for: the tightest gaps, around 5½ inches, where every fraction counts.
Fit check: At just under 5 inches, it is the narrowest cart here. The 15-inch length suits shallow spots beside a toilet or a short washer.
What buyers say: Buyers like how quickly it snaps together and say it slides neatly between a washer and dryer. The common complaint: It is light plastic, and a number of people say it tips over when loaded unevenly. Put heavy bottles on the bottom shelf.
Skip it if: you want to store tall detergent jugs on the top tiers, or your floor has a lip the small wheels can’t climb.
Check current price on Amazon →
2. Lavish Home Slim Rolling Storage Cart
Best for: a tall, deep gap beside the fridge where you want maximum shelf space.
Fit check: The tallest cart here at 52 inches, so measure up to any overhang. At 21.5 inches long, check that you have room to roll it fully out.
What buyers say: Buyers say it holds family-size bottles and frees up a surprising amount of pantry space. The common complaint: Opinions on sturdiness are split. Some report wheels breaking within weeks, so roll it gently and don’t overload the top.
Skip it if: the gap is shorter than about 54 inches to an overhang, or you need to pull it out daily on tile.
Check current price on Amazon →
3. Utility Slim Storage Cart with Handle, 4-Tier
Best for: a laundry gap or bathroom spot where you want metal baskets and a real handle.
Fit check: 5 inches wide and only 34 inches tall, so it clears most countertop overhangs. The handle helps on uneven floors.
What buyers say: Reviewers call it sturdy and not wobbly, and several say it looks more expensive than it is. The common complaint: It costs more than plastic carts, and very small items can slip through the mesh baskets.
Skip it if: your gap is under 5½ inches; it has no room to spare.
Check current price on Amazon →
4. VASAGLE 5-Tier Slim Rolling Cart
Best for: a kitchen gap beside the fridge for spices, oils, and coffee supplies.
Fit check: 5.1 inches deep, so plan on a 6-inch gap. Steel frame with particleboard shelves.
What buyers say: Buyers like the black metal look and say it holds a lot of spice jars. The common complaint: Some say the wheels are wobbly and don’t roll smoothly, so it suits a spot you open a few times a day, not constantly.
Skip it if: it would sit against a hot stove side panel, or the gap is exactly 5 inches.
Check current price on Amazon →
5. Slim 3-Tier Bathroom Rolling Cart
Best for: the gap between a toilet and a vanity, where a tall cart would be in the way.
Fit check: Only 26 inches tall, so it slides under a counter lip or towel bar. It holds about three double rolls of toilet paper per tier.
What buyers say: Buyers say it fits between the sink and toilet and goes together without tools. The common complaint: The plastic feels thin to some, and items fall over easily. Use it for paper goods, not glass bottles.
Skip it if: you want a cart that feels solid; this is a budget, lightweight option.
Check current price on Amazon →
Common questions
How wide is the gap between a washer and dryer usually?
Many side-by-side pairs leave 1 to 6 inches, which is why most slim carts are about 5 inches wide. Measure yours at the floor, middle, and top, and use the smallest number.
Can I put a rolling cart beside my refrigerator?
Usually yes, but check the manual for side clearance. Some refrigerators vent heat through the sides, and the door hinge may need extra space to open fully.
How do I stop a slim cart from tipping?
Keep heavy items on the bottom shelf, don’t fill the top with tall bottles, and pull the cart from a low handle instead of the top tier.