Last updated Aug 7, 2026
Large storage units can provide temporary or longer-term space when a move, renovation, downsizing project, or growing business creates more belongings than a home or workplace can accommodate.
At SecureSpace Self Storage Federal Way, primary large-unit sizes include 10x15, 10x20, 10x25, and 10x30. Each offers a different amount of floor space, but the right choice depends on the dimensions of your furniture, appliances, boxes, and equipment-not simply the number of rooms being stored.
Broader market reports such as PwC's Emerging Trends in Real Estate report reflect the growing role self storage can play during housing changes and other space transitions. This guide focuses on choosing and organizing a large unit at SecureSpace Federal Way.
Large storage units generally begin around 10x15 and extend through sizes such as 10x20, 10x25, and 10x30.
SecureSpace Federal Way offers the following primary sizes:
5x5
5x15
10x10
10x15
10x20
10x25
10x30
The larger options may be useful for furniture, appliances, moving boxes, tools, recreational equipment, office furnishings, and permitted business property.
Room-count comparisons can offer a starting point, but they should not be treated as capacity guarantees. Two households with the same number of bedrooms may have very different furniture, appliance, garage, and storage needs.
A 10x15 provides approximately 150 square feet of floor space.
It may work for:
Furniture from several rooms
Mattresses and bed frames
Sofas and chairs
Dining furniture
Household appliances
Moving boxes and bins
Bicycles and sports equipment
Office furniture
Tools and permitted business property
A 10x15 may be a practical choice when a 10x10 feels too compact but a 10x20 would leave substantial unused space.
A 10x20 provides approximately 200 square feet of floor space.
Possible uses include:
A larger household move
Furniture and appliances during a renovation
Downsizing from a multibedroom home
Combining belongings from two households
Office furniture and inactive inventory
Contractor tools and equipment
Recreational gear and seasonal property
Vehicles cannot be stored inside a 10x20 unit at SecureSpace Federal Way.
A 10x25 provides approximately 250 square feet of floor space.
The additional depth may be useful when:
Several rooms of furniture are being stored.
Appliances and garage belongings are included.
Freestanding shelving will occupy part of the unit.
Business property needs to be separated into categories.
An access aisle is important.
A 10x20 layout appears too crowded.
Measure the largest items before choosing between a 10x20 and 10x25.
A 10x30 provides approximately 300 square feet of floor space.
It may accommodate:
Furniture from a large household
Multiple mattresses and bed frames
Sofas, tables, cabinets, and chairs
Major appliances
Extensive moving-box collections
Business furniture and permitted inventory
Tools and equipment
Recreational and seasonal property
A 10x30 is not automatically the best choice simply because it is larger. Compare the planned layout with smaller options to avoid paying for floor space that will remain unused.

Actual fit depends on the shape, dimensions, and quantity of the belongings.
Large units may hold:
Sofas and sectional pieces
Beds and mattresses
Dressers and nightstands
Dining tables and chairs
Desks and office chairs
Bookcases and cabinets
Patio furniture
Freestanding shelving
Disassemble furniture when doing so is safe and consistent with the manufacturer's instructions.
Keep screws, bolts, and other hardware in labeled bags secured to the corresponding furniture without damaging its finish.
A large unit may provide space for:
Refrigerators
Freezers
Washers
Dryers
Dishwashers
Ranges
Portable appliances
Before storing an appliance:
Do not connect or operate appliances inside the storage unit.
There is no reliable universal box count for any unit size.
Capacity depends on:
Container dimensions
Furniture placement
Shelving
Stack stability
Appliance size
Weight distribution
The amount of open access space
Use sturdy boxes or bins and avoid creating stacks that are unstable or difficult to reach safely.
Permitted property may include:
Bicycles
Camping equipment
Skis and snowboards
Paddleboards
Exercise equipment
Lawn tools
Rolling tool cabinets
Contractor equipment
Portable racks
Use freestanding or floor-supported organization systems. Do not drill into or attach hardware to the unit walls.
A large unit may help when closing dates, lease terms, or move-in schedules do not align.
Keep medications, identification, keys, closing documents, chargers, and immediate household necessities with you rather than placing them deep inside the unit.
Furniture, appliances, and household boxes may need to be moved away from active work areas.
Separate household property from tools and renovation supplies. Fuels, propane, flammable products, hazardous chemicals, and other restricted materials should not be assumed to be permitted.
A large unit can provide temporary space while deciding which belongings to keep, sell, donate, or give to family members.
Organize boxes and furniture by category so the unit remains a useful transition space rather than an unstructured collection of property.
Couples, relatives, or multigenerational households may temporarily have duplicate furniture, appliances, kitchenware, and seasonal belongings.
Label duplicate items clearly so they can be evaluated without unloading unrelated property.
A large unit may provide temporary space while furniture and household belongings are inventoried and distributed.
Important documents, exceptionally valuable property, and irreplaceable items may require another arrangement.
Businesses may use a large unit for inactive, permitted property such as:
Packaged nonperishable inventory
Office furniture
Trade-show displays
Marketing materials
Tools
Equipment cases
Replacement parts
Seasonal supplies
A storage unit cannot be used as an office, workshop, storefront, active warehouse, customer pickup point, or fulfillment center.
A larger size does not change the facility's prohibited-item rules.
Do not assume a unit may be used for:
Cars or trucks
Motorcycles or ATVs
RVs
Boats
Commercial trailers
Fuels
Propane
Explosives
Flammable liquids
Hazardous chemicals
Perishable food
Refrigerated products
Damaged or recalled batteries
Regulated waste
Living plants or animals
Illegal property
Vehicles cannot be stored inside SecureSpace Federal Way's storage units, including drive-up units.
Eligible cars, motor vehicles, RVs, and boats may qualify for separate uncovered outdoor parking. Eligibility depends on dimensions, documentation, vehicle condition, facility rules, and current availability.
Covered parking is not available, and trailer parking should not be assumed.
SecureSpace Self Storage Federal Way offers standard, non-climate-controlled storage.
Heated and climate-controlled units are not available at this location.
Before placing belongings in storage:
Clean and dry every item.
Follow manufacturer instructions.
Avoid packing damp furniture, fabric, boxes, or equipment.
Use sturdy containers and suitable covers.
Remove batteries when directed.
Keep sensitive property away from wet belongings.
Inspect stored items periodically.
Consider another arrangement for highly sensitive or irreplaceable property.
The facility does not offer specialized art, antique, pharmaceutical, or archival storage.

Storage rates can change based on size, access type, current inventory, demand, and promotional terms.
Pricing resources such as Yardi Matrix data via SpareFoot can provide broad market context, but nationwide averages are not guaranteed Federal Way rates.
Before renting, review:
The current monthly rate
Whether the advertised price is introductory
The standard rate after a promotion
Administrative or move-in charges
Lock requirements
Coverage requirements
Billing dates
Rate-adjustment provisions
Late-payment terms
Move-out notice requirements
Compare the full move-in cost and ongoing rental terms rather than relying only on the initial advertised price.
Selected large units at SecureSpace Federal Way may offer drive-up access, subject to current availability.
This can reduce carrying distance for:
Furniture
Appliances
Moving boxes
Tools
Equipment cases
Business property
Recreational gear
Drive-up access does not permit vehicle storage inside the unit.
The facility does not provide:
Carts or dollies
An elevator
Covered loading
A loading dock
Semi-truck access
Moving-pod staging
Bring any hand trucks, furniture dollies, ramps, protective covers, or lifting assistance required for move-in.
Because loading areas are uncovered, check the weather and keep rain-protection materials accessible.
A large unit can become difficult to use when belongings are loaded without a clear plan.
List the furniture, appliances, containers, tools, and equipment being stored.
Include:
Item descriptions
Quantities
Approximate dimensions
Serial numbers for applicable equipment
Container labels
Planned locations within the unit
Update the inventory when belongings enter or leave the unit.
Measure:
Sofas and sectional pieces
Mattresses and bed frames
Tables
Appliances
Cabinets
Exercise equipment
Tool chests
Freestanding shelving
Long recreational equipment
Include handles, feet, wheels, arms, and other projections.
A simple zoning system can make a deep unit easier to navigate.
Keep frequently retrieved property near the entrance, such as:
Seasonal equipment
Work supplies
Important household boxes
Tools
Cleaning materials
Furniture scheduled for near-term delivery
Use the middle for occasional-access belongings, including:
Holiday decorations
Additional furniture
Office supplies
Sports equipment
Trade-show materials
Archived household boxes
Place long-term property toward the back, such as:
Spare furniture
Duplicate household items
Long-term records
Empty shelving
Items awaiting sale or donation
Keep a simple map showing where major categories are located.
Freestanding shelving can improve visibility and keep boxes from becoming unstable.
Shelving should:
Support the intended weight
Stand securely on the floor
Remain clear of the entrance
Avoid overloading
Allow containers to be removed safely
Do not attach shelves, hooks, brackets, or cabinets to the unit walls.
Appliances, toolboxes, dense containers, and heavy equipment should remain on the floor or properly rated shelving.
Avoid placing heavy objects above fragile or frequently handled belongings.
A practical aisle can reduce the need to unload everything near the entrance when retrieving property from the back.
The necessary width depends on the layout, furniture dimensions, and the size of the items being removed.
Avoid climbing on boxes, appliances, or furniture to reach stacked belongings.
SecureSpace Federal Way has:
An access gate
Digital video recording
Overnight surveillance
These features cannot guarantee protection from theft, loss, or damage.
Customers should also:
Use a compatible unit lock.
Keep access information private.
Maintain an inventory.
Photograph higher-value belongings.
Retain serial numbers and receipts.
Review applicable insurance coverage.
Limit access to authorized people.
Visit the unit periodically.
Do not assume the facility provides individual alarms, motion-alert texts, security patrols, continuous live monitoring, or logged individual access.
Gate access is available daily from 6:00 a.m. to 9:00 p.m.
Allow enough time to unload, organize the unit, and leave before access closes. The facility does not provide 24-hour gate access.
Month-to-month leases are available. Customers can also use:
Online payments
ACH payment plans
Credit card payment plans
Basic moving and packing supplies are available at the facility.
Review the rental agreement for current pricing, billing dates, rate adjustments, access rules, prohibited items, coverage requirements, notice periods, and move-out procedures.
At SecureSpace Federal Way, larger primary options include 10x15, 10x20, 10x25, and 10x30.
A 10x20 provides approximately 200 square feet of floor space. Actual capacity depends on furniture dimensions, appliances, containers, shelving, and aisle space.
A 10x30 provides approximately 300 square feet of floor space. It may accommodate substantial household or business property, but fit varies by layout and item size.
It may hold belongings from a large household, but room-count descriptions are not guarantees. Measure furniture, appliances, garage property, and boxes before renting.
No. Vehicles cannot be stored inside SecureSpace Federal Way's storage units.
Eligible cars, motor vehicles, RVs, and boats may qualify for uncovered outdoor parking, subject to dimensions, documentation, facility rules, and availability.
Businesses may store permitted inactive inventory, tools, furniture, equipment, or displays. Units cannot be used as active warehouses, offices, workshops, storefronts, or fulfillment centers.
No. SecureSpace Federal Way offers standard, non-climate-controlled storage.
No. Heated storage is not available.
Selected units offer drive-up access, subject to current availability.
No. Customers should bring their own moving equipment.
No. The facility does not have a covered loading area.
No. Semi-truck accessibility is not available.
Gate access is available daily from 6:00 a.m. to 9:00 p.m.
Yes. Review the rental agreement for billing dates, rate adjustments, notice requirements, and move-out procedures.
The best large-unit size depends on what you're storing, the dimensions of the largest belongings, and how often you'll need access. Measure furniture and appliances, plan the loading order, and compare 10x15, 10x20, 10x25, and 10x30 layouts before deciding.
Review current options for large storage units in Federal Way, WA.
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