Most people ask this question only after they’ve already made the problem worse: standing in a hallway of boxes that have migrated from their unit to their car, wondering why every trip to the facility feels like a game of Jenga. By that point, the answer feels obvious. But the question itself is usually framed wrong, and getting the frame right saves you money.
The real question isn’t just do I need more space? It’s actually two separate questions, and in a place like Scottsdale, the second one matters at least as much as the first.
The Question Everyone Asks Wrong
When people search for “when should I upgrade my storage unit,” they’re almost always looking for a list of signs. And there are real signs, we’ll cover them. But the more useful framework is to split the decision into two distinct choices:
Question 1: Do I need more square footage? This is what most people mean when they say “upgrade.” More room for more stuff.
Question 2: Do I need a better environment? Meaning: climate control, better access, ground-floor loading. In a desert city that regularly sees summer temperatures above 110°F, this second question often has higher stakes than the first. A unit that’s technically big enough can still ruin what’s inside it if it’s the wrong type.
Treating these as the same decision is how people end up paying for a larger non-climate-controlled unit when what they actually needed was a same-size climate-controlled one. Keep both questions in mind as you read through the signs below.
Signs You’ve Outgrown Your Current Unit Size
You can’t navigate without moving things. A well-organized storage unit should have a clear path from the door to the back wall. If you’re climbing over furniture or shuffling boxes every visit just to reach what you came for, you haven’t run out of space so much as lost control of the space you have. The first step is always to see if better organization solves the problem, use our size guide and space estimator to check whether you’re using your current unit efficiently before committing to anything larger.
You’ve stopped adding things because there’s no room. This is the quiet sign. You bought a new piece of furniture, got a drum kit, inherited your grandmother’s dining set, and it’s sitting in your garage or spare room because your unit is at capacity. When your storage unit is full and life keeps moving, you’re either renting a second unit (almost always a worse deal than upgrading to a larger single unit) or leaving valuable things unprotected.
A significant life change just happened, or is coming. Moving, downsizing, a new baby, a career change, a home renovation: any of these can change your storage footprint overnight. Renovations are a particularly common trigger because they tend to displace furniture room by room over weeks. If a major life event is on the horizon, it’s worth sizing up proactively rather than scrambling mid-project.
Your business inventory has outgrown the unit. Small-business owners and remote-work entrepreneurs often start with a 5×5 or 5×10 unit for overflow stock or equipment and find themselves unable to scale that storage alongside their business. When you’re turning down inventory because you have no place to put it, the math on a larger unit becomes straightforward.
Signs You Need a Better Unit, Not Necessarily a Bigger One

This is the section most upgrade guides skip entirely, and it’s the most important one for Scottsdale renters.
You’re storing things that heat destroys. Electronics, wood furniture, vinyl records, photographs, musical instruments, wine, candles, artwork, important documents, all of these degrade in prolonged high heat. A standard drive-up unit in Arizona is not a stable environment from May through September. If you added any of these items to a non-climate-controlled unit and you’re starting to see warping, discoloration, or electronic issues, the upgrade you need isn’t a bigger box; it’s a temperature-regulated one.
Your stuff is harder to access than it should be. If you’re on an upper floor without elevator access, or in a drive-up unit at the far end of a lot, and you’re visiting frequently, the friction adds up. Ground-floor indoor units with convenient loading access aren’t a luxury for heavy users, they’re a practical necessity. This is a genuine “upgrade” in the quality-of-experience sense even if the square footage stays identical.
You’ve added insurance-worthy valuables. The question isn’t just space; it’s protection. If the value of what you’re storing has increased significantly, the environment your unit provides should increase proportionally. A climate-controlled unit in a secured, camera-monitored indoor facility isn’t just more comfortable, it’s more defensible from an insurance and asset-protection standpoint.
Before You Pull the Trigger: Do This First
One honest piece of advice before any upgrade: spend 30 minutes reorganizing before you sign a new lease. The most common reason people feel cramped in a storage unit is vertical space. Most units have 8 to 10 feet of ceiling height, and most renters use about four feet of it. Freestanding shelving (rated for the weight you’re loading), stacking uniformly-sized boxes, and moving infrequently-accessed items to the back can sometimes double your usable space without moving to a larger unit.
If you’ve genuinely reorganized and you’re still out of room, or if you’ve identified that climate control is the real issue, then you’re ready to have a serious conversation about upgrading.
How Upgrading Works at McDowell Mountain Community Storage
One thing that surprises a lot of renters: upgrading at the same facility is usually far simpler than it sounds. There’s no moving truck. No coordinating a new lease from scratch. In most cases, a conversation with our on-site manager is all it takes to transfer to a different unit, and because we’re locally owned and operated, that process is direct, no call center, no waiting on hold.
Our facility at 10101 E. McDowell Mountain Ranch Rd offers storage units in Scottsdale ranging from 5×5 to 10×25, all fully indoor and climate-controlled, which means if climate control is the upgrade you need, every available unit here already has it. You can see current availability and reserve online, or call us at (602) 899-5484 during office hours to talk through what size makes sense for your situation.
Frequently Asked Questions
Can I upgrade my storage unit size without moving everything out?
At most facilities, including ours, you can transfer to a new unit within the same facility. You’ll still need to physically move your belongings from one unit to the other, but you avoid the cost and logistics of an external move. Coordinate the timing with the facility manager so both units are accessible simultaneously, it makes the process significantly easier.
How do I know what size storage unit I actually need?
A general rule: a 5×5 handles the contents of a large closet; a 5×10 fits a studio apartment’s worth of furniture; a 10×10 covers a one-bedroom apartment; a 10×20 handles a two- to three-bedroom home. Our space estimator walks through this room by room if you want a more precise starting point.
Is a climate-controlled unit really necessary in Scottsdale?
For anything beyond basic tools, patio furniture, or non-sensitive sporting equipment: yes. The interior of a non-climate-controlled unit in a Scottsdale summer routinely exceeds outdoor temperatures, which can cause irreversible damage to wood, electronics, adhesives, fabrics, and anything heat-sensitive. If your belongings have meaningful monetary or sentimental value, climate control is protection, not a premium.
Will upgrading to a bigger unit cost significantly more?
The monthly difference between adjacent size tiers varies by market and facility, but moving up one unit size (say, from a 5×10 to a 10×10) typically costs less per month than renting a second smaller unit. If you’re considering renting a second unit anywhere because your current one is full, compare that total cost against the price of a single larger unit first, it almost always makes more financial sense to consolidate.
How do I make the most of the storage unit I already have?
Use vertical space aggressively: shelving, stackable uniform-sized boxes, and items hung on wall hooks where permitted. Store infrequently-used items at the back and frequently-needed items near the door. Label every box on the side facing the aisle. For a more detailed walkthrough, our storage tips page covers packing and organization strategies that apply whether you’re in a 5×5 or a 10×25.









