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Steel Buildings - Metal Buildings Specifications & Accessories


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When you think of commitment, quality, service and affordability in any industry, there is always one company that sets the standard. American Steel Span is the benchmark in the arch style metal buildings industry with over 38 years of metal building systems design and manufacturing experience producing top quality products at factory-direct prices.

American Steel Span manufacturers the World’s most durable pre-engineered metal building systems designed to withstand the harshest weather conditions on earth, including heavy snow, hurricanes, tornadoes even earthquakes.

American Steel Span Span Building Systems include all the components necessary to erect a garage, a storage building, a barn, a warehouse, a commercial building - or any building that suits your need! American Steel Span Buildings supplies components that are made to precise standards of accuracy for easy assembly with pre-drilled holes and the bolts which are the only required fasteners for construction or your steel building. When it comes to protecting your valuable investments don't settle for less ... buy the best with American Steel Span Buildings... a leader among steel building manufacturers.

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With generations of experience, innovation and commitment to excellence, American Steel Span leads the steel building industry into the the new millennium. Our state-of-the-art manufacturing facility, unsurpassed customer service, and commitment to quality and affordability, has made American Steel Span building systems the first choice by thousands of satisfied customers worldwide. Our steel buildings are delivered factory direct avoiding the middleman and we pass the savings on to you.

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American Steel Span Buildings are made from the highest quality heavy gauge, US Galvalume steel available anywhere in the world. Our buildings are virtually maintenance free and come backed with a 30 year steel mill backed Galvalume Coating warranty.

American Steel Span Buildings Systems are proudly made in the US and used worldwide as metal buildings kits for industrial shops, warehouses, retail storefronts, steel buildings kits for skating rinks and indoor softball stadiums, alternative housing, barns and structures, agricultural buildings, livestock shelters, single/multiple residential garage kits and workshops, aircraft hangars and boat storage, garden sheds, steel building kits for mini-storage buildings and commercial storage, truck garages or shelters, for military and government buildings, portable steel buildings, metal buildings as storage sheds, paintball arenas, and a multitude of other applications!

Steel Buildings - Metal Buildings Specifications and Steel Building Accessories


Galvalume is an aluminum-zinc coated steel that provides extra corrosion protection. The cost of Galvalume is about the same as that of galvanized steel.

Galvalume offers the best qualities of aluminum-coated (aluminized) and zinc-coated (galvanized) steels. It has barrier corrosion resistance and heat resistance similar to aluminized and good bare edge galvanic protection and forming qualities like galvanized. So, Galvalume will resist rust, the elements and fire while providing a sturdy and protective covering.

Currently, uses for Galvalume include car mufflers, standing seam roofing, tubing for fences, greenhouses, steel buildings and much more.Galvalume offers excellent cost-effectiveness, which we pass on to our customers.


Galvalume, by virtue of its combined protection of aluminum and zinc, has at least twice the service life, in most atmospheric environments, of conventional galvanized steel with the same coating thickness.

In a series of exposure tests performed over a 13-year period by Bethlehem Steel, Galvalume steel was found to outlast galvanized by:

  • Four times in exposure tests in a severe marine environment.
  • Twice as long in a less severe marine location.
  • Six times longer in industrial environments.
  • Three times longer in rural situations.


Galvalume steel resists intermediate and high temperatures far more effectively than galvanized steel.

Specifically, Galvalume steel shows no discoloration up to 315°C (600°F) during continuous or intermittent exposure over a prolonged period. Above this temperature, some discoloration does occur and roughening of the surface is possible. Neither this discoloration nor roughening, however, reduces Galvalume's resistance to rust. Galvalume maintains its rust-resistance up to 675°C (1,250°F).

Additionally, Galvalume has excellent heat reflectivity, up to operating temperatures of about 315°C (600°F). This heat reflectivity makes a building cooler inside on hot, sunny days.


ADDITIONAL ARCHES: The design of the arch building enables you to add 2' or 2000' of length to your American Steel Span building at anytime. All American Steel Span parts and supplies are delivered Factory Direct to your location.


BOLTS: One size nut and bolt fits throughout the entire building. Bolts supplied by American Steel Span are corrosion resistant with a 5/16 hex head bolt with a square locking nut with a polyethylene washer for a watertight seal.


BASE CONNECTORS: American Steel Span has commercial base connectors that are the perfect application to retrofit our building to your existing slab, footer or block wall. Base connectors are Manufactured from heavy commercial steel and are available with a double bolt to arch to plate connection.


COLORED ENDWALLS AND ARCHES: American Steel Span's colored endwalls & arches are siliconized polyester coated from Akzo Nobel paints a leading producer of paints, finishes and synthetic resins for industrial Applications. Choose from 5 panel colors and 4 trim colors. American Steel Span offers a 5 year extended limited warranty in addition to Akzo's 25 year limited Warranty for a total warranty of 30 years.


DOOR LIGHT PANEL: Our door lights are made of heavy duty fiberglass that resists cracking and delivers a tremendous amount of sunlight to brighten up areas without using electricity.

ENDWALL TRIM KITS: American Steel Span's deluxe trim kits enable you to customize your endwalls with local material with no hassles. All American Steel Span's Steel parts and supplies are delivered Factory Direct to your location.

FRAMED OPENINGS: Heavy duty commercial vertical and horizontal steel doors jambs as well as Header flashing completes your open endwall allowing simple installation of doors.


INSULATION: American Steel Span offers two different types of insulation. A vapor-lock composite System, which consists of polyethylene air bubble pockets, sandwiched between thick layers of reflective coatings. Secondly, a traditional wmp-vr fiberglass Insulation with a white reinforced vinyl facing (1 side) from Guardian Fiberglass Which comes in a range of "R" values from "R"-10 to "R"- 19. Insulation is easily attached to arches and endwall with a pin and washer system.


SKYLIGHTS: There's nothing better than natural light, our preformed skylights reduce electric bills, easily installed by omitting a roof panel and bolting into place Skylight is recommended every for every 20' of building. NOTE: Not available in heavy snow load areas.


OVERHEAD DOORS: Quality garage doors are offered with standard lift or low headroom. American Steel Span can provide additional door features such as insulation or Half glass panels. Roll up doors with chain hoist and operators are also available.


SLIDING DOORS: Heavy duty double or quad sliding doors are available for large equipment or hangar applications. Door are sealed top, bottom and sides and come With and exterior latch.


SERVICE DOORS: Service doors allows for easy access to your American Steel Span building. Available in two sizes 3'w x 7'h and 6'w x 7'h. Our all-steel insulated doors can be installed in the ends or sides of your building. All doors are pre-framed and pre-hung and come standard with stainless steel hinges and a stainless steel keyed lockset.


TURBINE VENTS: Turbine ventilators and adapters help eliminate condensation (1) recommended every 20' of building


MANUALS: We are with you every step of the way! Full pictorial construction and foundation manuals outline every process of building from clearing your site to turning the last nut and bolt.


STAMPED DRAWINGS: Professionally engineered drawings are available for all fifty states.



Compare  our standard features vs. our Competition  

Compare Our Standard Features

·         30 Year AZ55 Galvalume® Coating Warranty 

·         Full Colored Arches available

·         Full Colored Ends available

·         24 Hour Customer Service

·         Low Cost Community Freight

·         7" Deep Panel with Alternating Overlaps

·         Flat Overlap on Panel Sides

·         Squared Overlaps on Panel Sides

·         Available in 14' to 90' Widths

·         Bolted Every 6" at Laps

·         Pre-Assembled Washers on Bolts

·         Roll Formed Cross-Corrugation (More Rigid)

·         Engineered for High Snow Loads without Factory Ends

·         Extensive Updated Easy to follow Construction Manual

·         100% U.S. Made Materials

·         Design Tested and Engineered Stamped 

        drawings available for all 50 states

·         Heavy Duty 50ksi Steel

·         All Pre-drilled Holes

·         Standard Concrete Drawings

·         Standard Flashings for Custom Ends

·         Factory to Customer Lifetime* Warranty

·         Energy Star Compliant Program for Galvalume

Some of our Competitor's Features

·         Galvanized Steel with NO Warranty

·         Voice Mail/Answering Service

·         Full Freight Costs

·         In-line Overlaps (Reduces Strength)

·         Corrugated Overlaps at Panel Ends

·         Rounded Overlaps on Panel Sides

·         Restricted to 40', 50' or 60' Widths

·         Bolted Every 9 1/2" at Laps

·         No Washers on Bolts

·         Stretch-Formed Corrugation (Reduces Gauge)

·         Requires Factory Ends for Snow Loads

·         Outdated Construction Manual

·         Imported Materials

·         Non-Tested

·         22 gauge 36ksi Steel

·         Pilot Holes (Requires Labor-Intensive Drilling)

·         Concrete Drawings Requires Additional Charge

·         Flashings for Ends Requires Additional Charge

·         Limited Warranty

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