Most self storage facility construction schedules slip for the same handful of reasons, and many of them are structural: a soils surprise after the land closes, a building that has to lose a story late in design, or a permit set that comes back with comments on the foundations. None of these are rare, and most can be seen coming. This guide from Metal Engineers LLC, a structural engineering firm for steel buildings and multi-story self storage based in Georgia, walks a developer through the structural milestones of a self storage project, from site selection to permit, and what to settle at each step so the building plans and the budget hold together.
Milestone 1: Site Due Diligence
Before closing on a site, a few structural questions are worth asking, because the answers can change what the site can hold and what it will cost to build on:
Soils. A preliminary geotechnical investigation shows whether the site can carry a multi-story building on conventional footings or will need deeper or more expensive foundations.
Wind and climate. Coastal and high-wind locations ask more of the frame, the roof, and the door framing. Snow regions add roof load.
Height and footprint. Zoning height limits, setbacks, and parking requirements decide whether the site supports one story or several. That decision drives the whole structure.
Topography. Sloped sites can call for stepped foundations or grade changes, which add structure a flat site never needs.
Structural input at this stage costs little compared with discovering a foundation problem after the purchase.
Milestone 2: Feasibility and Concept
Once the site is under contract, the developer, architect, and structural engineer test the basic shape of the building. This is where self storage facility construction costs are largely set. The key structural choices at concept:
Number of stories. Going vertical saves land but adds elevated floors, elevators, heavier columns, and larger foundations.
Framing system. A pre-engineered metal building, conventional structural steel, or a combination, chosen for the height, spans, and loads.
Column grid. Spacing that fits the unit mix and corridors on every floor and still frames efficiently.
Lateral system. Where bracing or frames can go without blocking corridors and unit doors.
The guide to the cost to build multi-story self storage explains how each of these choices moves the cost to build a self storage facility.
Milestone 3: Design Development
With the concept settled, the architect develops the unit plan and the structural engineer develops the frame around it. The two work from the same column grid and floor levels. This is the stage to lock the framing system, place the lateral system, and size the floor system for stored contents and cart traffic. It is also the stage to decide who designs each piece: foundations, elevated floors, stairs, canopies, and anything outside a pre-engineered manufacturer's package.
The full geotechnical report should be in hand by the end of design development, because foundation design depends on it.
Milestone 4: Construction Documents
Construction documents turn the design into self storage building plans a contractor can price and build from, and a building department can review. On the structural side, the set typically includes:
General notes with the design loads, wind criteria, and code basis
Foundation plans and details based on the geotechnical report
Framing plans for the roof and every elevated floor
The lateral system layout and connections
Elevator and stair framing on multi-story buildings
Structural calculations supporting the drawings, sealed by an engineer licensed in the project's state
Before submittal, the architectural and structural plans are checked against each other for columns in corridors, braces across doors, and openings that were never framed.
Milestone 5: Permitting
The building department reviews the structural package alongside the architectural and civil sets. Most structural comments come from missing pieces, documents that disagree, an outdated code basis, or design loads that are not clearly stated. Each round of comments adds time while land and financing costs keep running. The guide to structural calculations and drawings for self storage permits covers how to avoid the most common ones.
Milestone 6: Bidding and Construction
Once the permit is issued, the contractor prices the work and the steel fabricator or metal building manufacturer prepares its own drawings from the structural set. Clear, complete structural drawings help bids come in closer together, because every bidder is pricing the same building. During construction, questions from the field come back to the design team, and a coordinated drawing set keeps those questions few.
Where Self Storage Facility Construction Schedules Slip
Soils found late. A geotechnical report that arrives after the layout is set can force foundation redesign.
Height changes. Losing or adding a story after design starts means reworking the frame and foundations.
Unassigned scope. An elevated floor or stair no one designed shows up as a permit comment.
Late structural input. A layout drawn without the structural engineer often has to be redrawn. The guide to self storage building design and team roles explains how to avoid this.
Working With Metal Engineers LLC
Metal Engineers LLC provides structural engineering for steel buildings and self storage, with multi-story self storage as its lead service. The firm's licensed structural engineers each bring 12 to 27 years of experience. Based in Georgia, Metal Engineers LLC is registered in 34 states, including Georgia, Florida, Texas, North Carolina, and Tennessee.
Metal Engineers LLC designs the structure; construction is handled by the developer's chosen contractor. To talk through a project at any milestone, contact Metal Engineers LLC, call 404-338-0473, or email contact@metalengineers.com.
Frequently Asked Questions
What are the steps in self storage facility construction?
Typically site due diligence, feasibility and concept, design development, construction documents, permitting, then bidding and construction. Structural decisions about height, framing, and foundations are made in the early steps and carry through the rest.
When should a structural engineer review a self storage site?
Ideally before closing on the land. A short review of soils, wind, height limits, and topography can show whether the site supports the building the developer has in mind.
What goes into self storage building plans for a permit?
Architectural plans for the layout and exterior, structural drawings and calculations for the frame and foundations, and civil drawings for the site. With a pre-engineered metal building, the manufacturer's drawings are included too.
What structural calculations does a self storage permit need?
Building departments commonly require calculations showing the design loads and that each beam, column, connection, and foundation is sized to carry them. Requirements vary by jurisdiction.
Where is Metal Engineers LLC registered?
Metal Engineers LLC is based in Georgia and registered in 34 states. Contact the firm to confirm a specific project location.