A 5x5 storage unit, roughly the size of a large walk-in closet, can hold items like small furniture, several boxes, seasonal decorations, sports equipment, or even a small mattress set.
Here's a more detailed breakdown of what you can fit in a 5x5 storage unit:
Common Items:
Small Furniture: Chairs, small desks, end tables, lamps, and bookcases.
Boxes: You can fit 5 to 8 medium-sized boxes.
Seasonal Items: Holiday decorations, out-of-season clothing, and garden tools.
Sports Equipment: Bikes, sports equipment, and gardening tools.
Other: Suitcases, small appliances, and baby accessories.
Mattress: A twin or full-size mattress.
Electronics: TVs, video game consoles, and tablets.
Business Records: Office supplies and documents.
Musical Instruments:

A 5x10 storage unit, roughly the size of a large walk-in closet, can hold the contents of a small bedroom, including a queen-size mattress, dresser, and some boxes, or the items from a studio apartment.
Here's a more detailed breakdown of what can typically fit in a 5x10 storage unit:
Furniture:
Bed: Twin, full, or queen-size mattress and bed frame.
Other: Dresser, nightstands, armchairs, coffee table, and small entertainment center.
Seating: Couches, recliners, and accent chairs.
Electronics:
TV: Medium-sized television.
Audio: Stereo equipment and speakers.
Storage and General Items:
Boxes: Several small to medium-sized boxes.
Seasonal Items: Decorations, clothes, and other seasonal belongings.
Sports Equipment: Bicycles, skis, or snowboards.
Appliances: Microwave oven.
Office Supplies: Extra inventory and office supplies.
Motorcycles: Most motorcycles can fit, with extra space for access

A 10x10 storage unit, roughly the size of a small bedroom or half a one-car garage, can typically hold the contents of one or two bedrooms home, including furniture, appliances, and boxes.
Here's a more detailed breakdown of what you can fit in a 10x10 storage unit:
Furniture:
Bedroom: King-sized mattress set, dressers, lamps, shelves.
Living Room: Couches, coffee tables, end tables, entertainment center, flat-screen TV.
Other: Dining room sets, desks, filing cabinets, bookshelves.
Appliances:
Washer, dryer, refrigerator, dishwasher.
Other Items:
Boxes of clothing and household items.
Sports gear, bicycles, garden equipment, and seasonal home decor.
Small vehicles like motorcycles, ATVs, and jet skis.
Contents of a small office, including desks, chairs, files, and storage boxes.

A 10x15 storage unit is ~150 square feet and can hold the contents of a 1-2 bedroom home, including furniture, appliances, boxes, and other household belongings.
Here's a breakdown of what you can typically fit:
Furniture:
Multiple bedroom sets (mattresses, bed frames, dressers, nightstands), living room sets (sofas, coffee tables, entertainment centers), and dining room furniture.
Appliances:
Refrigerators, washers, dryers, and stoves.
Other Items:
Seasonal items like patio furniture, sports equipment, boxes, and even business inventory.
Boxes:
A significant number of boxes, depending on their size, potentially 50 to 100 or more.
Specific Examples:
King and queen-sized mattress sets, sofas, entertainment centers, dining room sets, major appliances, music equipment (piano, speakers), boxes of clothing/paperwork/household items.

A 10x20 storage unit, roughly the size of a 1-car garage, can hold the contents of a multi-bedroom home, including furniture, appliances, boxes, and even some vehicles.
Here's a more detailed breakdown of what fits:
Furniture:
Multiple sets of bedroom furniture: Mattresses, bed frames, dressers, nightstands.
Living room furniture: Couches, love seats, sectionals, coffee tables, and entertainment centers.
Dining room set: Tables, chairs, and other dining room items.
Patio furniture: Tables, chairs, grills, and other outdoor furniture.
Appliances:
Large appliances: Refrigerators, washing machines, dryers, and dishwashers.
Other Items:
Boxes and storage containers: A large quantity of boxes for storing household items, clothing, and kitchenware.
Seasonal items: Decorations, tools, and equipment for gardening, snow removal, and other seasonal activities.
Exercise equipment: Treadmills, weight sets, and other fitness equipment.
Small vehicles: Compact cars, sedans, and other small vehicles.
Motorcycles, ATVs, and other recreational vehicles:
Business inventory and equipment

A 10x25 storage unit, ~ 250 square feet, can hold the contents of a 3-4 bedroom home, including furniture, appliances and household items.
Here's a more detailed breakdown of what can fit:
Furniture:
Sofa, couches, love seats, patio furniture
Bed frames, dressers, and other bedroom furniture
Dining room sets, desks, and home office furniture
Entertainment centers, recliners, and armchairs
Appliances:
Washer, dryer, refrigerator, oven, freezer, dishwasher, microwave
Air conditioners
Other Items:
Boxes and totes
Seasonal decorations and outdoor items
Exercise equipment like treadmills and ellipticals
Electronics like TVs, speakers, and game consoles
Small to medium-sized vehicles like cars, motorcycles, and SUVs
Business inventory and equipment
Contents of a standard-sized garage

A 10x30 storage unit, roughly the size of a two-car garage, can typically hold the contents of a 4-5 bedroom home, including furniture, appliances, and boxes.
Here's a more detailed breakdown of what can fit:
Furniture: Multiple sets of living room furniture, bedroom furniture from several rooms, dining room sets, and patio furniture.
Appliances: Major appliances like washers, dryers, refrigerators, and freezers.
Household Items: Boxes of clothing, shoes, and other household items.
Other: Sporting equipment, garage items like lawnmowers, and other equipment.
Size: A 10x30 unit is 300 square feet and 2,400 cubic feet.

Outdoor storage parking space can accommodate various vehicles and items, including cars, trucks, vans, SUVs, boats, RVs, trailers, and even some commercial vehicles, depending on the size of the vehicle.
Smaller vehicles like motorcycles and ATVs can also be stored in outdoor parking spaces.
Outdoor storage spaces can also be used for storing seasonal items like lawn equipment, sports equipment, or outdoor furniture.

A 10x8 storage unit, roughly the size of a small bedroom, can comfortably hold items like a queen-sized mattress, a sofa, a dining table, chairs, and several boxes, making it suitable for storing the contents of a one-bedroom apartment or a smaller home.
Here's a more detailed breakdown:
Furniture:
You can store a queen-sized bed, a sofa, a dining table, chairs, and other smaller furniture pieces.
Appliances:
A washer and dryer combination, or a refrigerator, can also fit in this size unit.
Boxes and Miscellaneous Items:
You can also store numerous boxes, seasonal decorations, and other miscellaneous items.
Ideal for:
This size is ideal for storing the contents of a one-bedroom apartment, a studio, or a smaller home during a move or renovation.
Size:
A 10 x 8 storage unit is 80 square feet, which gives you 640 cubic feet of packing and storing room.