Size Guide

Need help choosing the right storage unit size? Our easy-to-use size guide and calculator make it simple. Just list the items you plan to store and include how many of each — we'll do the rest! Whether you're storing household goods, business inventory, or a vehicle, we’ll help you find the ideal fit. Still unsure? Contact one of our storage experts for personalized assistance at our Rock Springs, WY, or Grandview Plaza, KS, locations.

5x5 Storage Unit
5 x 5 Storage Unit 25 sqft

  • Chest of drawers or desk mattress set, several boxes and small items, or about 50 file boxes
  • Equivalent to a 4 x 8 Trailer, Small closet, Half bathroom.

5x10 Storage Unit
5 x 10 Storage Unit 50 sqft

  • Mattress set, sofa, dining room set, chest of drawers, boxes, and small items
  • Equivalent to a 6 x 12 Trailer, Pickup Truck, or Cargo Van, Walk-in closet

5x15 Storage Unit
5 x 15 Storage Unit 75 sqft

  • Standard furnishings of a one-bedroom apartment without appliances, or about 150 file boxes
  • Equivalent to a Large walk-in closet, a Small bedroom

10x10 Storage Unit
10 x 10 Storage Unit 100 sqft

  • Contents of a 1-bedroom apartment, including a fridge, washer/dryer, patio set, 2 office setups, or about 200 file boxes.
  • Equivalent to a 15' Moving Truck, Average Size bedroom

10x15 Storage Unit
10 x 15 Storage Unit 150 sqft

  • Furnishings of a two-bedroom apartment or a small house with appliances, patio furniture, and many boxes, or a vehicle/ small boat
  • Equivalent to a 20' Moving Truck or a Large bedroom

10x20 Storage Unit
10 x 20 Storage Unit 200 sqft

  • Furnishings of a two-bedroom house with appliances, patio furniture, and many boxes, or a vehicle or small boat, or construction equipment
  • Equivalent to a 24' Moving Truck, Small one-car garage

10x25 Storage Unit
10 x 25 Storage Unit 250 sqft

  • Furnishings of three three-bedroom house with appliances, patio furniture, and many boxes, garage extras, and miscellaneous or a vehicle or boat
  • Equivalent to a 26' Moving Truck, Large one-car garage

10x30 Storage Unit
10 x 30 Storage Unit 500 sqft

  • Furnishings of a four or five-bedroom house with appliances, patio furniture, and many boxes, garage extras, and miscellaneous or a vehicle or boat
  • Equivalent to an Extra-Long one-car garage

Storage Calculator


Bed, King Size
approximately 70 cubic feet
Bed, Double Size
approximately 55 cubic feet
Bed, Single
approximately 40 cubic feet
Bed, Bunk (set of 2)
approximately 70 cubic feet
Dresser, Chest of Drawers
approximately 30 cubic feet
Cedar Chest
approximately 15 cubic feet
Ironing Board
approximately 10 cubic feet
Side Tables
approximately 10 cubic feet
Wardrobe Boxes (30 hangers)
approximately 10 cubic feet
Mirror
approximately 10 cubic feet

Size Suggestion

To receive a size suggestion, select the items you wish to store.

5x5
Self Assured Storage Logo
Self Assured Storage
93 Purple Sage Rd
Rock Springs, WY 82901

Gate Access: 24/7

Self Assured Storage
719 Cannon View Dr
Grandview Plaza, KS 66441

Gate Access: 24/7