The design-build process integrates architecture, engineering, and construction under one contract, eliminating the handoff friction that plagues traditional design-bid-build projects. For commercial property owners planning aviation hangars, manufacturing plants, warehouses, or multi-story facilities, understanding each phase helps you anticipate decision points, manage timelines, and avoid the budget creep that comes from fragmented communication between separate architects and contractors.
Many facility managers fear schedule slippage and mid-project change orders when planning large-scale industrial builds. They've heard horror stories of contractors walking away or architects blaming builders for design conflicts discovered too late. The design-build model solves this by placing programming, schematic design, permitting, procurement, construction, and commissioning under a single point of accountability. At Beachy Construction Inc., our partnership with Butler Manufacturing and 120+ years of metal building heritage means every phase is coordinated by teams who've worked together on hundreds of commercial projects.
What Is the Design-Build Process?
Design-build is a project delivery method where one entity holds a single contract for both design services and construction. Instead of hiring an architect to complete drawings, then bidding the project to general contractors, you work with a unified team from day one. This integration produces faster schedules, fewer change orders, and transparent budget tracking because the people drawing the plans are the same people pricing materials, scheduling trades, and managing the build.
Single-Source Accountability
Traditional design-bid-build projects involve at least two separate contracts: one with the architect and one with the contractor. When problems arise, finger-pointing between the design team and the construction team delays resolution. In design-build, your contract is with one firm that owns both the design decisions and the construction execution. If a steel connection detail needs adjustment or a roofing system upgrade improves lifecycle performance, the same team makes the call without waiting for separate consultant approvals.
Design-Build vs. Traditional Delivery
Design-bid-build follows a linear sequence: complete design, bid to contractors, award contract, begin construction. Each phase waits for the prior phase to finish. Design-build overlaps phases. While schematic design progresses, the construction manager prices structural systems and long-lead equipment. While permit drawings are submitted, procurement begins on steel fabrication. This parallel workflow typically shortens overall project timelines by 15 to 30 percent compared to traditional methods.
Why Commercial Projects Choose Design-Build
Commercial and industrial facility owners value speed, cost certainty, and technical expertise. Aviation hangars require tall eaves, expansive clearspans, and FAA permitting coordination. Manufacturing plants need crane integration, heavy equipment foundations, and process-specific layouts. Warehouses demand column-free interiors and high-bay lighting. Design-build teams bring architectural, structural, and MEP engineering in-house, ensuring these specialized requirements are addressed during schematic design rather than discovered as conflicts during construction. Our design + build approach embeds this coordination into every project phase.
Phase 1: Site Selection and Feasibility
Before design begins, you need to confirm your chosen site can support the intended facility. Site selection involves zoning verification, geotechnical investigation, utility availability assessment, and environmental review. This phase typically takes two to six weeks depending on site complexity and local agency responsiveness.
Zoning and Land Use Review
Municipal zoning codes dictate allowable building heights, setbacks, parking ratios, and use categories. Industrial and aviation facilities often require conditional use permits or variances. Your design-build team coordinates with planning departments early to identify constraints before architectural design begins. For aerospace projects, FAA height and obstruction clearances add another layer of review that must align with local zoning.
Geotechnical and Environmental Studies
Soil borings reveal bearing capacity, groundwater levels, and potential contamination. Foundation design for heavy steel structures and crane loads depends on accurate geotechnical data. Environmental Phase I assessments identify historical land uses that might trigger remediation requirements. Collecting this information during feasibility prevents costly foundation redesigns mid-project.
Utility and Access Planning
Large industrial facilities consume significant electrical, water, and sewer capacity. Confirming utility availability and sizing service connections early avoids delays during permit review. Access roads, fire lanes, and stormwater management must also be mapped during site selection. Design-build teams often bring civil engineers into this phase to model grading, drainage, and utility routing before schematic design starts.
Phase 2: Programming and Conceptual Design
Programming defines your facility's functional requirements: square footage, ceiling heights, equipment loads, workflow adjacencies, expansion capacity, and operational priorities. Conceptual design translates these requirements into preliminary layouts, elevations, and 3D renderings. This phase usually spans three to six weeks and establishes the project budget baseline.
Defining Functional Requirements
You'll work with architects and engineers to document every operational need. An aviation hangar requires door dimensions that accommodate specific aircraft tail heights and wingspans. A manufacturing plant needs floor load capacity for machinery, crane coverage zones, and clear heights for material handling. Warehouse operations specify dock door counts, trailer maneuvering clearances, and racking aisle widths. The programming document becomes the checklist against which all design decisions are measured.
Budget Transparency from Day One
Because the construction manager is part of the design team, preliminary cost estimates are generated during conceptual design. Steel tonnage, insulated panel quantities, mechanical system capacities, and site work volumes are priced in real time as architects sketch layouts. You see budget impacts immediately when evaluating design options, such as adding mezzanine systems or upgrading to higher R-value insulated metal panels. This transparency prevents the sticker shock that often hits traditional projects when bids come back 20 percent over the architect's estimate.
3D Design Technology
Advanced 3D modeling tools let you walk through your facility virtually before construction begins. You'll see how natural light enters through translucent panels, how crane rails align with production equipment, and how truck traffic flows around the building. Early visualization catches design conflicts and allows you to adjust spatial relationships while changes are still inexpensive. Our use of 3D design technology has become standard for complex aviation and manufacturing projects where coordination between structure, equipment, and building systems is critical.
Phase 3: Schematic Design and System Selection
Schematic design refines the conceptual layout into dimensioned floor plans, building sections, and preliminary structural engineering. You'll select major building systems during this phase: pre-engineered metal building frames, roofing profiles, insulated panel types, door and glazing systems, and HVAC strategies. Schematic design typically takes four to eight weeks depending on project complexity.
Pre-Engineered Metal Building Configuration
For aviation, warehouse, and manufacturing facilities, pre-engineered metal buildings offer the ideal combination of speed, cost efficiency, and design flexibility. During schematic design, structural engineers configure bay spacing, eave heights, roof slopes, and frame types to match your operational requirements. Long-bay warehouses might use clearspans up to 60 feet with flush girts for maximum usable width. Aviation hangars often require custom rigid frames or hybrid steel construction to achieve 80- to 120-foot clearspans without interior columns.
Roofing and Envelope Systems
Roof system selection affects lifecycle cost, energy performance, and warranty coverage. The MR-24® standing seam roof system has over 50 years of proven performance and more than 3 billion square feet installed since 1969. Its concealed fastener design and structural seam enhance weathertightness and reduce maintenance. Insulated metal panel walls such as ThermaWall™ or TextureWall™ deliver R-values from R-15 to R-29 with concealed fasteners and polyurethane cores, meeting or exceeding IECC energy code requirements. Wall and roof system choices are locked in during schematic design so pricing and lead times remain predictable.
Mechanical, Electrical, and Plumbing Coordination
MEP engineers begin load calculations and equipment sizing during schematic design. High-bay lighting layouts, HVAC zoning, crane power feeds, compressed air distribution, and fire protection systems are coordinated with the structural frame and building envelope. For heavy industrial projects, equipment-mounted cranes and monorails are integrated into the steel framing design, ensuring columns and roof purlins are sized for hanging loads.
Phase 4: Design Development and Permitting
Design development produces construction-ready drawings: detailed floor plans, structural calculations, MEP layouts, door and window schedules, and material specifications. Permit applications are submitted to local building departments and, for aviation projects, to the FAA. Design development and permitting together span six to twelve weeks depending on jurisdiction complexity and review workload.
Construction Document Coordination
Detailed drawings show every steel connection, insulation layer, panel fastener, and mechanical duct run. Structural engineers provide stamped calculations demonstrating code compliance for wind loads, snow loads, seismic forces, and crane reactions. Architects coordinate door hardware, fire-rated assemblies, and accessibility features. MEP engineers size electrical services, specify HVAC equipment, and design plumbing layouts. In a design-build model, this coordination happens within a single integrated team, eliminating the coordination conflicts that arise when architects and contractors work from separate sets of drawings.
FAA and Local Building Permits
Aviation and aerospace facilities require FAA Form 7460-1 filing for any structure that might penetrate navigable airspace. Tall hangars near airports trigger obstruction reviews that can take weeks to resolve. Your design-build team's familiarity with FAA permitting timelines and submittal requirements keeps the schedule on track. Local building permits address code compliance for structural, fire, accessibility, energy, and life safety requirements. Early coordination with fire marshals on AFFF fire suppression systems, emergency egress, and sprinkler coverage prevents late-stage plan revisions.
Value Engineering Opportunities
As permit drawings near completion, the construction manager reviews the design for cost-saving opportunities that don't compromise performance. Substituting an alternative insulated panel profile, adjusting bay spacing to optimize steel tonnage, or reconfiguring truck docks to reduce site grading are examples of value engineering. Because the builder is embedded in the design process, these opportunities are identified and implemented without the adversarial change-order negotiations typical in design-bid-build projects.
Phase 5: Procurement and Pre-Construction
Once permits are issued or substantially approved, procurement begins. Steel fabrication, insulated panels, roofing materials, doors, and long-lead mechanical equipment are ordered. Pre-construction activities include site clearing, stormwater controls, and utility rough-ins. Procurement and pre-construction overlap and typically run six to ten weeks before vertical construction starts.
Steel Fabrication Lead Times
Pre-engineered metal building components are fabricated off-site in controlled manufacturing environments. Primary framing members, secondary purlins and girts, and roof and wall panels are produced to exact specifications and shipped to the site ready for assembly. Fabrication lead times range from six to twelve weeks depending on project size and shop capacity. Early steel orders lock in pricing and secure fabrication slots, protecting the project from market volatility and schedule delays.
Site Preparation and Utilities
While steel is being fabricated, site contractors clear vegetation, rough-grade the pad, install stormwater detention basins, and bring in utilities. Foundations for column bases and equipment pads are poured. Underground electrical, water, sewer, and fire service lines are installed and inspected. Proper sequencing of site work and steel delivery keeps the project moving without costly idle time waiting for one trade to finish before another can start.
Subcontractor Coordination
The construction manager coordinates concrete contractors, steel erectors, panel installers, roofers, electricians, plumbers, and HVAC trades. In a design-build model, subcontractors are often brought into design discussions early so their field expertise informs constructability decisions. This early involvement reduces field conflicts and speeds installation. For example, electrical subcontractors review panel layouts to optimize conduit pathways before panels are ordered, avoiding costly field modifications.
Phase 6: Construction and Erection
Vertical construction begins with steel erection and proceeds through roof and wall panel installation, interior fit-out, and MEP rough-in. Construction timelines vary widely by project size: a 20,000-square-foot warehouse might complete in eight to twelve weeks, while a 200,000-square-foot aerospace manufacturing facility could take six to nine months. Design-build delivery keeps this phase on schedule through proactive coordination and real-time problem-solving.
Steel Frame Erection
Pre-engineered metal building frames are bolted together on-site using cranes and erection crews trained in Butler building systems. Primary frames go up first, followed by secondary framing (purlins, girts, and eave struts). Roof and wall panels are installed progressively as framing sections are completed. The speed of steel erection is one of the major schedule advantages of pre-engineered buildings over site-built construction. A 40,000-square-foot clear-span warehouse frame can be erected in two to three weeks under good weather conditions.
Roof and Wall Panel Installation
Insulated metal panels and standing seam roofing are installed by specialized crews following manufacturer guidelines. Concealed fastener systems like MR-24® and ThermaWall™ require precise alignment and seam engagement to achieve warranted weathertightness and thermal performance. Roof panel installation typically progresses at 5,000 to 10,000 square feet per day depending on building geometry and crew size. Wall panels follow a similar pace. Once the building is enclosed, interior trades can work without weather exposure.
MEP Rough-In and Interior Build-Out
Electrical conduit, plumbing lines, ductwork, and fire sprinkler piping are installed after the building is weathertight. Office spaces, restrooms, and mezzanines are framed, insulated, and finished. Overhead cranes and material handling equipment are set on their rails and aligned. High-bay lighting is mounted and aimed. Concrete floor slabs are placed and finished if not already completed during foundation work. The construction manager sequences trades to minimize conflicts and keep inspections flowing smoothly.
Phase 7: Systems Testing and Commissioning
Commissioning ensures every building system performs as designed before you take occupancy. HVAC systems are balanced, electrical panels are tested, fire alarms and sprinklers are inspected, and overhead cranes are load-tested. Commissioning typically takes two to four weeks and runs concurrently with final finishes and punchlist work.
Functional Performance Testing
Mechanical systems are started, run through full operating cycles, and fine-tuned to meet design airflows, temperatures, and humidity levels. Electrical systems are energized and tested under load. Fire suppression systems undergo flow tests and alarm verifications. Overhead cranes are proof-loaded to 125 percent of rated capacity to confirm structural and mechanical integrity. These tests catch installation errors and equipment defects before they disrupt your operations.
Building Code Inspections
Local building officials conduct final inspections of structural, mechanical, electrical, plumbing, fire, and accessibility features. Any deficiencies identified during inspection are corrected immediately. Your design-build team coordinates inspection scheduling and provides documentation (engineering calculations, product certifications, test reports) to support code compliance sign-offs. For aviation & aerospace projects, FAA inspections may also be required for certain airfield-adjacent structures.
Owner Training and Documentation
Before handoff, your facility management team receives training on HVAC controls, electrical panels, fire systems, overhead cranes, and any building automation systems. Operations and maintenance manuals are delivered, including equipment warranties, as-built drawings, spare parts lists, and preventive maintenance schedules. This training ensures your team can operate and maintain the facility effectively from day one.
Phase 8: Closeout and Facility Handoff
Closeout is the final phase where the contractor completes punchlist items, obtains the certificate of occupancy, processes final payments, and transfers warranties and documentation to you. Closeout typically spans one to three weeks after systems commissioning is complete.
Punchlist Completion
As commissioning wraps up, a joint walkthrough identifies any remaining cosmetic or functional items that need attention: touch-up paint, door adjustments, missing hardware, or equipment calibration. The contractor schedules trades to complete punchlist work, and a final walkthrough confirms everything is addressed. In a design-build relationship, the same team that designed and built the facility owns the punchlist, so accountability is clear and resolution is fast.
Certificate of Occupancy
The building department issues a certificate of occupancy (CO) after final inspections pass and all code requirements are satisfied. The CO legally authorizes you to occupy and operate the facility. Your design-build team coordinates closely with inspectors throughout construction to avoid last-minute surprises that could delay the CO. For phased projects, temporary COs allow partial occupancy while final finishes are completed in other areas.
Warranty Transfer and Ongoing Support
All manufacturer warranties (roofing, panels, doors, HVAC equipment, cranes) are formally transferred to you at closeout. Butler building systems come with industry-leading warranties, and the MR-24® roof system includes a weathertightness warranty backed by 50+ years of proven field performance. Beachy Construction Inc. also provides a lifetime guarantee on Butler building systems, giving you confidence in long-term structural integrity. Ongoing facility repair and maintenance support is available as your operations evolve. Our re-roof & retrofit systems services ensure your facility continues performing decades after initial construction.
How the Design-Build Timeline Compares
Traditional design-bid-build projects sequence design completion, contractor bidding, and construction start as three separate blocks. A typical 50,000-square-foot industrial facility might see four months of design, six weeks of bidding, and six months of construction, totaling roughly twelve months from kickoff to occupancy. The same project delivered via design-build often completes in eight to ten months because procurement overlaps with design development and construction mobilization begins as soon as permits are issued.
Eliminating the bid phase saves time and reduces change order risk. In design-bid-build, contractors price finished drawings without having participated in design decisions. When field conditions or product availability differ from what the architect assumed, change orders follow. Design-build teams price and build from the same set of coordinated documents, and any adjustments needed during construction are resolved internally without contentious contract negotiations.
Frequently Asked Questions
How long does the entire design-build process take for a commercial facility?
Timelines vary by project size and complexity. A 20,000-square-foot warehouse with straightforward site conditions and standard systems might complete in six to eight months from site selection to occupancy. A 100,000-square-foot aerospace manufacturing plant with FAA coordination, heavy crane systems, and specialized process equipment could take twelve to eighteen months. Design-build typically shortens schedules by 15 to 30 percent compared to traditional delivery because phases overlap and fewer handoff delays occur.
What decisions do I need to make during the programming phase?
You'll define square footage requirements, ceiling heights, equipment loads, workflow adjacencies, office and restroom areas, dock door counts, and any future expansion plans. For specialized facilities, you'll also specify crane capacities, floor load ratings, climate control zones, and utility capacities. The more detailed your programming input, the more accurately the design-build team can estimate costs and schedule during conceptual design.
How does single-source delivery eliminate change orders?
Change orders typically arise when contractors encounter conditions or design details that differ from bid assumptions. In design-build, the constructor prices and reviews every design decision in real time. If a steel connection detail proves difficult to fabricate, the engineer adjusts it during design development rather than issuing a field change order during construction. Budget impacts are visible before commitments are made, and any necessary adjustments are handled through internal coordination rather than contract amendments.
What warranties and guarantees come with a design-build project?
Manufacturer warranties cover roofing, insulated panels, doors, HVAC equipment, and overhead cranes. Butler building systems include structural warranties and the MR-24® roof system offers a weathertightness warranty backed by over 50 years of field performance. Beachy Construction Inc. provides a lifetime guarantee on Butler building systems. General contractor warranties typically cover workmanship for one to two years after substantial completion. Your design-build contract will specify all warranty terms and transferability.
Start Your Design-Build Project with Confidence
The design-build process delivers commercial and industrial facilities faster, with fewer change orders, and with single-source accountability that traditional design-bid-build simply cannot match. From site selection through commissioning, every phase is coordinated by an integrated team that owns both the design decisions and the construction execution. For aviation hangars, manufacturing plants, warehouses, and multi-story commercial buildings, this integration translates to predictable schedules, transparent budgets, and high-performing facilities built to support your operations for decades.
Beachy Construction Inc. brings over 120 years of metal building heritage through our partnership with Butler Manufacturing, combined with in-house architectural, engineering, and construction expertise. Whether you're planning a 30,000-square-foot distribution center or a 200,000-square-foot aerospace complex, our design-build team delivers buildings that do more. Schedule a design-build consultation to map your project timeline and see how single-source delivery can accelerate your next facility.
Ready to eliminate handoff delays and change-order friction? Contact Beachy Construction Inc. at (620) 960-7944 or visit our contact us page to schedule your design-build consultation today.
For industry guidance, see Home construction — Wikipedia.