Choosing the right size steel storage building matters — whether you're a homeowner needing backyard storage, a contractor requiring secure equipment space, or a business planning a multi-unit facility. At Synergy Structures in Lancaster, SC, we manufacture durable, steel-framed storage buildings in the most in-demand sizes for both residential and commercial use.
This guide will help you understand what fits inside each of our core building sizes so you can choose the perfect structure for your property.
Our Most Popular Steel Storage Building Sizes
1. 10×10 Storage Building
A compact, affordable unit perfect for homeowners, lawn equipment, and general household storage. Its smaller footprint helps preserve valuable yard space.
What Fits:
Lawn mower or push mower
Outdoor tools and gardening equipment
Bikes, bins, and seasonal items
Home storage overflow
Small shelving units
2. 10×20 Storage Building (Long Footprint / Narrow + Deep)
This long, deep unit is ideal for contractors, hobbyists, and homeowners — and is one of the most practical sizes for garage-style storage.
What Fits:
Riding mower or small UTV
Power tools, ladders, compressors
Multiple shelving units
Contractor equipment
Bikes, bins, totes, and seasonal items
Small vehicle storage (motorcycle, golf cart, ATV/UTV)
Compact or subcompact car (varies by model)
Its depth allows storage of a vehicle with space remaining for tools or shelving.
3. 20×10 Storage Building (Wide Footprint / Shallow Depth)
Available in two choices — one open bay or two single bays
This size works well for homeowners, businesses, commercial sites, and any property needing wider, side-by-side storage access.
What Fits in Each Configuration:
Open Bay:
Wide shelving along back or side walls
Small trailers
Push mowers & household equipment
Landscaping tools & machinery
Pressure washers, generators, compressors
Bulk storage, boxes, totes, inventory
Two Single Bays:
Tools and equipment
Household storage
Business supplies
Boxes and seasonal décor
Compact machinery
4. 30×10 Storage Building
With 3 single bays, this larger footprint is ideal for rental storage businesses, commercial facilities, farms, agricultural operations, and municipalities.
What Fits:
Household items
Tools and equipment
Business inventory
Boxes, bins, and supplies
Small equipment and machinery
This size provides maximum versatility and offers excellent ROI for rental-based properties.
How to Choose the Right Storage Building Size
1. Identify what you’re storing
Match your items to the descriptions above.
2. Think about future needs
Most customers later wish they had chosen a larger size.
3. Measure available space on your property
Include:
Foundation or pad
Door clearance
Drive-up access
Turning radius
Setback requirements
4. Consider single vs. multi-unit
Multi-unit buildings (like the 30×10 3-bay) provide flexibility and high rental value.
5. Ask the Synergy team
We help customers daily with sizing, placement, and project planning.
Why Choose a Steel Storage Building?
All Synergy Structures buildings include:
Heavy-duty steel framing
Premium metal panels
High-quality roll-up doors Low-maintenance design
Long-term durability Clean, modern appearance
Steel outperforms wood structures in every category: lifespan, maintenance, pest resistance, and weather protection.
Need Help Choosing a Size? We’re Here to Help.
Whether you're storing lawn equipment, planning a small garage, or building a multi-unit rental property, Synergy Structures has the steel storage building for your needs — manufactured proudly in Lancaster, South Carolina.
Call us today for a recommendation or visit SynergyStructures.com
