What D-MAC does

D-MAC Industries, Inc. is a family-owned, privately held steel and metal decking supplier founded in 1988 and headquartered at 1880 D-MAC Drive in Alpharetta, Georgia. The company manufactures, fabricates, and distributes structural metal decking and accessories for the commercial construction sector, serving general contractors, builders, steel fabricators, roofing contractors, structural steel erectors, and design professionals (architects and engineers). Its product portfolio centers on four categories: steel roof decking (Type A, B, F, N, N32, and 4.5DR profiles), composite floor decks (1.5", 2", and 3" depths for concrete-slab systems), non-composite form decks (0.6" to 1.5"), and steel rack/mezzanine decks for warehouse and industrial storage. The company also custom-fabricates deck accessories — fasteners, pour stops, closures, girder fillers, sump pans, and ridge/valley plates — and offers accelerated stay-in-place steel bridge forms, a line associated with the Interstate 85 Bridge Collapse reconstruction.

The underlying technology is cold-formed structural-grade sheet steel processed into corrugated deck panels via repeating rib patterns, produced to Steel Deck Institute (SDI) member standards. D-MAC holds a limited set of proprietary product designs, notably its trademarked Water Shower Deck and an "Improved Water Shower Deck," a perforated rack deck permitting water flow to lower shelving while providing a non-combustible, load-bearing surface. Its principal operational differentiator is a proprietary inventory and fulfillment process across approximately 30 distribution centers spanning roughly 25 states in the eastern half of the United States, enabling approximately 90% of orders to be picked up or shipped the same day, with next-day capability for bridge products.

The business model is transactional hardware sales: one-time product sales of deck panels, value-added custom fabrication services, and complementary accessories, with no subscription or recurring-revenue component. Pricing is quote-based and not publicly disclosed, determined by deck type, gauge (16–28), finish (prime painted, galvanized G60/G90), length, quantity, and delivery location. Go-to-market is a direct, inside-sales-led motion via phone (770-664-7120) and online quote request forms, supported by organic search visibility and a self-serve deck identifier tool. Distribution is direct — customer pickup at local warehouses or job-site delivery — with the company reporting more than 30,000 customers served since inception and a team of tenured metal deck specialists.

Name

D-MAC

Legal name

D-MAC Industries, Inc.

Website

https://d-macindustries.com

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

D-MAC Industries is a family-owned steel and metal decking supplier founded in 1988, providing roof, composite floor, form, rack decks, and custom accessories with same-day fulfillment from roughly 30 distribution centers to construction contractors, fabricators, architects, and engineers across the eastern U.S.

Ownership category

akta.pro rank

Product category

Steel Decking Products

NAICS

Fabricated Structural Metal Manufacturing (332312)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Steel Joists, Joist Girders & Decking (IMADACAC)

Keywords

• Steel roof decking
• Composite floor deck
• Non-composite form deck
• Steel deck accessories
• Construction materials supply

Headquarters

HQ city

Alpharetta

HQ country

United States

HQ region

North America

Offices31 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Infrastructure, Operations, Personnel, Marketing or Sales

Revenue model

1. Steel Deck Product Sales: One-time product sales of steel deck panels including roof decks, composite floor decks, and form decks. Products sold with various gauges, finishes (prime painted, galvanized), and custom cut-to-length options. Revenue generated from material sales with no ongoing subscription component.
2. Custom Fabrication Services: Custom fabrication of deck accessories including pour stops, closures, ridge/valley plates, sump pans, and special sheet metal parts requiring punching, bending, notching, and welding. Added-value service on top of standard product sales.
3. Deck Accessories: Sale of complementary accessories including fasteners (side lap screws, attachment screws, bridge deck screws), weld washers, girder fillers, Z closures, J closures, column closures, and foam/acoustical batting.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

D-MAC Industries manufactures and distributes structural steel roof decking, composite floor decking, non-composite form decks, steel rack and mezzanine decks, and custom-fabricated deck accessories for the commercial construction sector. The company operates 30 same-day fulfillment distribution centers across the eastern United States, providing cut-to-length steel deck panels in various gauges, rib profiles, and finishes, supported by in-house custom fabrication of pour stops, closures, fasteners, and specialty sheet metal components.

Product overview

D-MAC Industries is a steel and metal decking supplier offering a comprehensive portfolio of structural metal decking products and accessories for commercial construction. The product line centers on four main categories: Steel Roof Decking (including Type A, B, F, N, N32, and 4.5DR profiles in various gauges and finishes), Composite Floor Decks (1.5", 2", and 3" depths for concrete slab applications), Non-Composite Form Decks (0.6", 1.0", 1.3", and 1.5" depths for permanent steel form applications), and Steel Rack/Mezzanine Decks (for warehouse and industrial storage). The company also provides custom-fabricated steel deck accessories including fasteners, closures, pour stops, and specialty components. D-MAC operates 30 same-day fulfillment locations across the eastern United States, serving contractors, builders, architects, and engineers with immediate delivery capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Steel Roof Decking Structural steel roof deck products available in narrow, intermediate, wide, and deep rib configurations including Type A (narrow rib, 1.5" deep), Type B (wide rib, 1.5" deep), Type F (intermediate rib, 1.5" deep), Type N (deep rib, 3" deep), Type N32, and 4.5DR (4.5" deep). Available in gauges 16, 18, 20, and 22 with prime painted or galvanized finishes. Supports insulation or lightweight concrete and waterproof roof membranes. Designed for commercial construction contractors, builders, and roofing professionals.
• Composite Floor Deck Steel floor deck products designed to work with concrete pour applications, available in three depths: 1.5" (narrowest), 2" (intermediate), and 3" (deepest for high-rise and parking garage applications). Features embossments that bond with concrete to create a composite floor system. Available in gauges 16, 18, 20, and 22 with galvanized finish for superior corrosion protection, in 24" or 36" cover widths. Designed for commercial construction contractors and structural steel erectors.
• Non-Composite Form Deck Steel form deck products for applications where composite action with concrete is not required. Available in four sizes: 0.6" form deck (standard duty, 28-22 gauge), 1.0" form deck (heavy-duty, 26-20 gauge), 1.3" form deck (extra heavy-duty, 24-20 gauge), and 1.5" form deck (inverted applications, 22-16 gauge). Used as permanent steel base for forming slabs, floors, stairways, and roof deck systems carrying lightweight insulating concrete. Designed for commercial construction professionals.
• Steel Deck Accessories Custom-fabricated steel components for completing steel deck installations. Includes metal deck fasteners (side lap screws, attachment screws, bridge deck screws, welding washers), end closures, cell closures, girder fillers, pour stops, Z closures, sump pans, flat plates, column closures, ridge and valley plates, cant strips, J closures, foam closures, and acoustical batting. Custom fabrication includes punching, bending, notching, and welding. Designed for construction professionals needing complementary components for deck installations.
• Steel Rack and Mezzanine Decks Heavy-duty steel decking solutions for warehouse and industrial storage applications. Includes carpet rack deck, cantilever rack deck, metal deck covers, fire baffles, improved water shower decks, mezzanine decks, and Type A/B/C/D rack decks designed for pallet rack, bulk storage, and rivet-type rack systems. Water Shower Deck features perforated slots allowing water flow to shelving below while providing barrier to upward spread of flames. Designed for warehouse operators and industrial facility managers.
• Steel Bridge Form Accelerated stay-in-place steel bridge form products designed for bridge construction projects. Includes various bridge form profiles with typical specs and advantages documentation. Designed for transportation infrastructure contractors and bridge construction projects.

Quantifiable outcome

• 90% of orders picked up or shipped same day
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators6 records

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Tata Steel (BlueScope legacy building products): Global steel producer with downstream building products and coated steel products used in steel deck supply chains; broad incumbent operating in adjacent raw/coated steel supply rather than directly competing with D-MAC's final steel deck sales.
• Canam Steel Corporation: Large structural steel fabricator manufacturing joists, girders, and steel deck across North America as part of a wider portfolio of structural building products; broad incumbent rather than deck specialist.

Direct peers

• Epic Metals Corporation: Specialty steel deck manufacturer producing composite floor and roof deck profiles including EC-150 and Epicore; comparable product portfolio and project-based commercial construction customer base.
• New Millennium Building Systems: Steel joist and steel deck manufacturer producing SDI-standard roof and floor deck, similar to Vulcraft and D-MAC; comparable structural products serving non-residential construction customers nationally.
• Cordeck: Steel roof and floor deck manufacturer and distributor (Nucor-affiliated) producing SDI-standard profiles including 1.5", 2", 3" composite and form deck; directly comparable mid-sized competitor serving similar eastern and midwestern markets.
• Verco Manufacturing Co. Nucor subsidiary manufacturing steel roof and floor/FormLok deck products; competing SDI-standard profiles including PLB, PLN, B, N, and Deep Vercor against D-MAC's roof, composite, and form deck lines.
• ASC Steel Deck: Steel roof and floor deck manufacturer now part of Cornerstone Building Brands; produces SDI-standard profiles including Types B, F, N, and 4.5DR in direct competition with D-MAC's roof deck line.
• Vulcraft (Nucor): Nucor's joist, joist girder, and steel deck division producing SDI-standard roof and floor deck; very direct comparable on product range including composite floor deck types and form deck.
• Metal Deck Corporation: Smaller steel deck manufacturer/distributor producing custom-cut roof, floor, and form deck in gauges 16-28; closely comparable niche distributor model competing regionally with D-MAC.

Emerging players

• Steel Construction Services / Aegis Metal Framing: Regional metal framing and steel deck accessory fabricators serving eastern and midwestern commercial construction sub-contractors; overlap with D-MAC's accessories and custom fabrication line.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/dmacindustries

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about D-MAC