The Metal Construction News 2020 Top Metal Builders list took some twists and turns this year. First, we changed the name. In previous years, we used the previous year’s date to identify the list because that was the year represented by the data. From now on, we will name it for the year the list is published. So, 2020 Top Metal Builders instead of Top Metal Builders of 2019. We did this to reduce confusion and to make the list timelier for the marketing of companies on the list.
A year of ups (market share) and downs (totals) for top metal builders
The other twists are interesting variations in the companies who submitted. Consider this:
- About half the companies on the list this year were not listed last year.
- Of the companies carrying over, about half saw their rank drop. The drop occurred not because companies leapfrogged them but because their tonnage and square footage numbers decreased.
- About a third of this year’s companies reported declining tonnage from 2018.
There are surprising swings in the number and size of metal buildings an individual contractor will construct. One huge project can affect a company’s ranking on the list or even if they make the list. But often, contractors offering metal buildings in addition to other services just have a variation from year to year of the metal building projects. Metal building erectors, however, are more consistent year to year.
Every year, we see lots of familiar names, and over the last few years, there have been about 150 to 170 companies that submit entries annually. Not every company submits every year so the total pool of companies that have submitted over the last five years totals about 300.
Comparing the numbers for this year’s submitters to last year’s, it’s quickly evident that the average tonnage took a steep decline. It would be easy to conclude that the market took a downturn in 2019, but looking at the chart on average tonnage over the last 10 years shows that 2018 was an outlier.
Some indicators suggest, though, that 2019 was a slower year for metal buildings. Last year, the company ranked 100 used 677 tons of steel. The year before number 100 used 526 tons. This year, number 100 used 468. In fact, the company ranked 77th on this year’s list used less steel than the company ranked 100 last year.
On the other end of the list, at the top, the story is different. Of the top 20 companies, only four reported declining tonnage.
Market share change of Top Metal Builders between 2011 and 2020
Market Share
One of the values of lists such as this is to identify any kind of market consolidation. If the top 20% of companies start growing significantly while the remaining 80% see flat or declining tonnage, we can conclude that more work is moving to the top of the list, consolidating the industry in fewer companies. Over the years, the percentage of the top 100 market controlled by the top 20% has been variable, but there is a distinct upward trend. This year, there is a slight drop from last year, but, as previously noted, metal building contractors do often have wild swings in the number of metal building projects they do.
To put this in perspective, the Metal Building Manufacturers Association (MBMA) reports that its member companies sold slightly more than 1 million tons in 2019. Over the last few years, the market share of those companies has been about 35%. In 2019, the 100 largest metal builders built 205,109 tons, or about 20% of the total MBMA members have shipped and the top 20%, who bought 123,563 tons, account for about 12% of the total MBMA members have shipped. Even though there seems to be some market movement toward the largest metal builders, the industry is still extremely fragmented at the contractor level.
The biggest challenges Top Metal Builders faced in 2019
Biggest Challenges
For the last few years, the labor shortage has dominated the biggest challenges metal builders have faced. The 67% of respondents who identify this as their biggest challenges exactly matches last year’s 67% (Note: these percentages are based on all 170 survey respondents, not just the top 100).
There were a couple of notable changes from last year though. Because of tariff issues, steel prices were the biggest challenge of 7% in last year’s survey. This year, steel prices wasn’t mentioned by a single metal builder.
What was mentioned, though, were rising costs (2%), slowing market (4%) and scheduling (3%). The scheduling is likely closely related to lead time delays and the permitting process, both of which appeared on last year’s survey. Two challenges significantly increased compared to last year. Five percent of respondents in last year’s survey said weather was a big challenge, while 9% identified it this year, an 80% increase. A slowing market appeared on the list for the first time in several years, and that change is bolstered by the percentage of respondents who identified growth as a major challenge. It dropped from 5% last year to 1% this year.
Average tonnage used by Top Metal Builders by year
Average square footage built by Top Metal Builders by year
Company List
5H Construction—Both
Bend, Ore.
Kelly Hemphill, Rhett Hemphill
5hconstruction.com
PEMB supplier and erector, commercial general contractor
A.B. Systems Inc.—Both
Rochester, Minn.
A.B. Systems Inc. (Corporation)
www.absystemsinc.com
Design-build general contractor with design and construction services
a.j. Veneklasen Inc.—Both
Grand Rapids, Mich.
Chris Veneklasen
www.ajvinc.com
General contractor, metal building supplier and erector, design-build
Ahrens Companies—Both
Lake Park, Fla.
Richard C. Ahrens
ahrenscompanies.com
Design-build firm that offers value engineering and LEED services
A-Lert Building Systems, a division of Centurion Industries Inc.—Square Footage
New Braunfels, Texas
Kenny Tharp, Loren Troyer, Brad Parish
www.alertbuildingsystems.com
Metal buildings, metal roofing, retrofit
Arizona Corporate Builders LLC—Both
Tempe, Ariz.
Dave Manarin, Greg St. Clair
www.azcorporatebuilders.com
Metal buildings, new construction, general contractor
Ayars & Ayars Inc.—Both
Lincoln, Neb.
Mike Ayars
www.ayarsayars.com
Design-build general contractor, commercial construction
Baker Builders LLC—Both
Frederick, Colo.
Jodi Baker, Dustin Baker
www.bakerbuildersco.com
Provide metal building supply and erect services with in-house crews, as well as new construction and reroof services
Beaver Constructors Inc.—Both
Canton, Ohio
Family owned
www.beaverconstructors.com
General contractor, construction manager
Bel-Con Design Builders Ltd.—Both
Belleville, Ontario, Canada
Tom Gunsinger, Michelle Stephens
www.bel-con.com
Industrial, commercial, institutional design-builder in pre-engineered buildings, standing seam, reroof, new construction, addition and renovations
Big D Builders Inc.—Both
Meridian, Idaho
Dennis Durrant
www.bigdbuilders.com
Supply and install pre-engineered metal buildings, erect metal buildings, supply and install metal roofing, supply and install insulated metal wall panels
BIghorn Steel Buildings Inc.—Square Footage
Pueblo, Colo.
Daniel Corsentino, Joseph Corsentino
www.bighornsteelbuildings.com
Metal building design and sales, construction services, metal roofing and siding
BMB Inc.—Tonnage
Gretna, Va.
Blair Holding Corp.
bmbsteel.com
Furnish and erect pre-engineered buildings, metal roofing, IMP wall panels, miscellaneous structural steel
Brett Construction Co.—Both
Lexington, Ky.
Brett T. Setzer, Keith Fryman, Banks Hudson, Denny Boom
www.brettcon.com
Design-build contractor
Buildings By Design LLC—Both
Brush, Colo.
Travis Lefever, Pat Walter, Merle Grauer
www.buildingsbydesign.com
General contractor specializing in PEMB facilities
Campbell Construction Inc.—Both
Wooster, Ohio
John A. Campbell
www.campbell-construction.com
Design-build general contractor, construction manager specializing in commercial and industrial construction
CHG Building Systems Inc.—Both
Renton, Wash.
Charles H. Grouws, Steven Grouws, Ryan Grouws
www.chgbuildingsystems.com
Furnish and erect metal building systems, structural steel and architectural sheet metal
Clouse Construction Corp.—Both
New Riegel, Ohio
Leonard Clouse, Lynn Clouse, Brian Clouse
www.clouseconstruction.com
Design-build general contractor, specializing in pre-engineered steel buildings, conventional steel
Construction Management Inc.—Tonnage
Winchester, Va.
Jason Garlock
www.cmiva.com
Metal building construction, full general contracting on residential and medical offices
Crane Steel Structures Ltd.—Square Footage
Winnipeg, Manitoba, Canada
Paul Crane, PJ Crane
www.cranesteel.com
Metal buildings, metal roofing, retrofit, new construction, industrial, commercial
Crossland Construction Co. Inc.—Both
Columbus, Kan.
Ivan Crossland Jr., Bennie Crossland, Curt Crossland, Mike Crossland, Patrick Crossland
www.crossland.com
Industrial and commercial construction company specializing in general contracting, construction management, design-build and negotiated bid. Self-perform steel, concrete site and carpentry.
Design Builders and Contractors—Both
Eau Claire, Wis.
Doug Awe, Lucas Weissinger
designbuilderswi.com
General contractor, pre-engineered metal buildings
Design Systems Builders Inc.—Both
Nashville, Tenn.
T.W. Frierson Contractor Inc.
www.dsb-inc.com
Metal building erector, reroof
Downs Construction Co. LLC—Square Footage
Thomasville, N.C.
Anthony Downs, Tammy Downs
downsconstruction.net
PEMB erection and sales
Dublin Building Systems—Both
Dublin, Ohio
Tom Irelan, Rich Irelan, Bob Howe
www.dublinbuilding.com
Design-build general contractor specializing in industrial construction
Dunn Building Co. LLC—Both
Birmingham, Ala.
Dunn Investment Co.
dunnbuildingcompany.com
General contractor and specialty subcontractor in pre-engineered metal buildings, metal roofing, metal siding and heavy concrete
Dutton & Garfield Inc.—Tonnage
Hampstead, N.H.
Steven R. Webster
www.duttongarfield.com
Building design-build, supply and erect, new and retrofit roofing
E&L Construction Group Inc.—Both
Flint, Mich.
Greg Krueger, Jeff Krueger, Mark Krueger, John Ray, Mike Carlyon
www.eandlgroup.com
Commercial and industrial construction
Empire Building Construction—Both
Sioux Falls, S.D.
Luke Fortney
empireconst.com
General contracting, metal buildings, concrete, earthwork
Engineered Buildings Inc.—Square Footage
Livonia, Mich.
Robert McFate
www.engineeredbuildingsmi.com
New construction, metal roofing
Epic Construction—Both
Kieler, Wis.
Brad Bierman, Chad Walsh
www.epicgc.com
General contractor and metal building supplier/erector
EPOC Construction Inc.—Both
Newport News, Va.
Ken Bingman
www.epocconstruction.com
Design-build general contractor, and furnish and erect
Fast Track Erectors LLC—Both
Georgetown, Texas
Alex Valladares
www.fasterectors.com
Metal and structural steel erection
FED Corp.—Both
Gladwin, Mich.
Brock Dennings
www.fedcorp.com
Design-build general contractor, supply, erect metal buildings
Ferguson Construction Co.—Both
Sidney, Ohio
Martin L. Given
www.ferguson-construction.com
General contractor
Force Construction Co. Inc.—Both
Columbus, Ind.
Closely held
www.forceco.com
Self-performing general construction company, engaged in commercial/industrial building construction and heavy/civil construction.
Foundation Steel—Square Footage
Swanton, Ohio
Charlotte Dymarkowski
www.foundationsteel.net
Metal buildings, insulated metal panel installation, metal roofing, retrofit, steel erection
G&D Erectors Inc.—Square Footage
Avella, Pa.
Jeff Gordon
www.gderectors.com
Compressor buildings, metal buildings, metal roofing, metal siding, miscellaneous platforms
Greystone Construction Co.—Both
Shakopee, Minn.
Kevin O’Brien
www.greystoneconstruction.com
General contractor in commercial, industrial, multifamily, senior housing and agribusiness markets. Pre-engineered metal building systems.
Guardian Construction Management Services Inc.—Tonnage
Murrysville, Pa.
Anthony Bucciero, Dennis O’Hara
www.gcmsi.com
Metal buildings, metal roofing, retrofit, new construction, construction management
H&H Structural Contracting Inc.—Tonnage
Fairfield, Ohio
Gary Hart, Brian Hart
www.hhstructural.com
Design-build PEMB
Hansen-Rice Inc.—Both
Nampa, Idaho
Burke Hansen, John Rice
www.hansen-rice.com
Metal buildings, insulated metal panel installation, metal roofing, retrofit, steel erection
Harman Construction Inc.—Square Footage
Harrisonburg, Va.
Employee owned
www.harmanconstruction.com
Design-build general contractor specializing in pre-engineered metal buildings, tilt wall construction and commercial, institutional and industrial projects of all types
Harrell Construction Co. Inc.—Both
Jacksonville, Fla.
Glenis l. Harrell Jr, Jason Harrell
www.harrell-construction.com
Design-build furnish and erect PEMB services throughout Southeastern U.S.
Heath Steel—Both
Fort Collins, Colo.
Randy DeMario
www.heathsteel.com
Metal buildings
Howard Immel Inc.—Both
Green Bay, Wis.
Paul Martzke, Alex Santos
www.immelconstruction.com
General contractor
Hudson Brothers Construction Co.—Both
Greenville N.C.
E. Lynn Hudson, J. Phillip Nichols
www.hudsonbros.com
New construction
Hurst Construction—Square Footage
Munford, Ala.
Todd Hurst
www.hurstconstruction.com
Image Building Systems—Both
Phoenix, Ariz.
Ryan Klosterman
www.imagebuildingsystems.com
Metal buildings and commercial construction
Industrial Building Systems—Both
Milford, Conn.
William Lewis
www.ibsct.com
Supply and erect metal buildings
Interface Manufacturing—Both
Paso Robles, Calif.
Jack Delore
Metal buildings
J&F Construction & Development Inc.—Both
Bucyrus, Ohio
Jim Mayes
www.jfconstruction.com
General contractor, design-build, build-lease, construction manager, steel erection, sitework, concrete, reroof
J&M Steel Solutions Inc.—Both
Lehi, Utah
Scott Jeppson, Craig Madsen
www.j-msteel.com
Erection of PEMB, structural steel, joist and deck
James Ware Construction Inc.—Both
Sturgis, Mich.
James Ware, Kathryn Ware
jameswareconstructioninc.com
Metal buildings, new construction
JBS Contracting Inc.—Both
Mt. Pleasant, Mich.
James Kremsreiter, John Stadtfeld, Lee Roethlisberger, Becky Connors
www.jbscontracting.com
Construction management, general contractor, metal buildings, new construction, remodels
Jensen Builders Ltd.—Both
Fort Dodge, Iowa
Dale Jensen
www.jensenbuilders.com
Design-build general contractor that specializes in self-performing concrete, carpentry and metal building erection.
JH Kelly LLC—Both
Longview, Wash.
Dan Evans
www.jhkelly.com
Industrial and commercial general contractor
JICI Construction—Square Footage
Angola, Ind.
Ken W. Wilson
jici.com
Metal buildings, commercial, industrial, institutional, design build and general contracting
Joseph Construction Co. Inc.—Tonnage
Knoxville, Tenn.
Joseph R. Zappa Jr.
www.josephconstruction.com
General contractor specializing in commercial and industrial construction
K2 Construction Inc.—Tonnage
Boise, Idaho
Mark J. Kreizenbeck, Donna MD Kreizenbeck
k2cm.com
General contractor performing the majority of the work in pre-engineered metal buildings (manufacturing, warehousing, retail), and wood-frame structures (assisted living, commercial and retail).
Kaiser-Martin Group—Tonnage
Temple, Pa.
David Leinbach
www.kaisermartingroup.com
The Kaiser-Martin Group is a design-build general contractor.
Keller Inc.—Both
Kaukauna, Wis.
Employee Owned
www.kellerbuilds.com
Design-build general contractor
Kessel Construction Inc.—Tonnage
Bradford, Pa.
Tim Asinger, Kristin Asinger, Richard Kessel, Ann Kessel
www.kesselco.com
Design-build metal buildings, metal roofing, new construction
Keystone Steel Structures—Both
Honey Brook, Pa.
Elam King
keystonesteelstructures.com
Pre-engineered metal buildings
Lichtefeld Inc.—Tonnage
Louisville, Ky.
Paul Lichtefeld Sr., Paul Lichtefeld Jr., Stan Lichtefeld, Mark Lichtefeld
lichtefeldinc.com
Design-build commercial/industrial, metal buildings, metal roofs, conventional steel buildings, civil, architectural and mechanical design, construction management, real estate services, total turnkey
Link Construction Group—Both
Bellefontaine, Ohio
Dave Link, Reno Stapleton, Rich Dyer
www.linkconstructiongroup.com
Commercial and industrial construction specializing in design-build projects
LMBI Inc., dba Landmark Metal Builders—Square Footage
Sierra Vista, Ariz.
Dominic Moss, Brandon Moss www.landmarkmetal.com
Metal building supply and erect, structural and misc. steel supply and erect, metal roofing and architectural metals supply and install
Lock Steel Building Co.—Both
Carrollton, Mo.
Matt Lock
www.locksteel.com
PEMB contractor, metal buildings, metal roofing, new construction
Long Construction Management—Both
Lexington, Ky.
Linden Long
www.longconstructionmgt.com
Design-build contractors, commercial/industrial new construction, PEMB sales and erection
M & F Litteken Co.—Both
Wichita Falls, Texas
Kevin Darnell, President; Jean Darnell, Vice President; Shane Darnell, Vice President
www.mflitteken.com
General contractor, design-build contractor utilizing pre-engineered building systems
Maverick Steel Inc.—Square Footage
Byers, Colo.
Ronnie Williams, Tammi Williams
www.mavericksteel.net
Metal building erection
Metal Mike Steel Buildings—Square Footage
Valley Springs, Calif.
Mike Uhlinger
Metal buildings
Miedema Metal Building Systems Inc.—Both
Hudsonville, Mich.
Tom Miedema
mmbsinfo.com
General contractor specializing in pre-engineered metal buildings
M-MIG Construction Inc.—Both
Atwater, Calif.
Matt Migliazzo
www.mmigconstruction.com
Metal buildings, retrofit, design-build
North Valley Building Systems Inc.—Tonnage
Chico, Calif.
Andrew J. Wood
www.northvalleybuilding.com
General contractor, pre-engineered metal buildings, reroofing, design-build
Northwest Builders Inc.—Tonnage
Rice Lake, Wis.
Chris Mlejnek, Darrel Olson, Erik Chilson
www.nwbuildersinc.com
Design-build general contractor
NuAge Builders LLC—Both
Sioux Falls, S.D.
Bryant Larson, Zachary Potter
www.nuagebuilders.com
Metal buildings, retrofit, new construction and remodels
Nuway Construction—Both
Goshen, Ind.
Andy Nesbitt, Jan Oostland
nuwayconstruction.com
Metal buildings, new construction, remodel
NW Steel Design LLC—Tonnage
Silver Creek, Wash.
Mark Bolender
www.nwsteeldesign.com
Metal buildings
Page Construction LLC—Square Footage
Sarah, Miss.
David Page, Mandy Lamb
www.pageconstructionllc.net
Pre-engineered metal building installation and sales
Patco Construction Inc.—Both
Sanford, Maine
Greg Patterson, Mark Patterson
www.patcocommercialbuilder.com
Metal buildings, reroofs
PDS Engineering & Construction Inc.—Both
Bloomfield, Conn.
Ronald Jodice, William Jodice, Frank Borawski
www.pdsec.com
Metal buildings, new construction, addition, renovations
Pioneer Construction—Both
Grand Rapids, Mich.
Tim Schowalter
www.pioneerinc.com
General contractor, metal buildings entirely, precast, conventional steel, general trades
Precision Erection Co. Inc.—Both
Russell Springs, Ky.
Stephen P. Branscum
www.pecinc.com
Erection of metal building systems
Pre-Con Builders Ltd.—Both
Oak Bluff, Manitoba, Canada
Jeff Hawryluk, Robin Lee
www.preconbuilders.com
Design-build, general contractor—pre-engineered and conventional
Pullman Power LLC—Both
Kansas City, Mo.
Peter Emmons
www.pullman-services.com
New construction, retrofit and demolition
Quality Erectors & Construction Co. Inc.—Both
Benicia, Calif.
Jesse Esquivel, Karen Esquivel
www.qec-inc.com
Metal buildings, structural steel, insulated panels, etc.
Racanelli Construction—Tonnage
Melville, N.Y.
Racanelli Brothers
racanelliconstruction.com
General contractor, design-build, construction management, metal buildings
Redhawk Metal Buildings LLC—Both
Richfield, Wis.
Jeffrey Gunderson, Richard Knabe
www.redhawkmetalbuildings.com
Pre-engineered metal building furnish and erect
Riedel-Wilks Building Structures Inc.—Both
Huntington, W.Va.
Scott Riedel, Gary Staten, Jeff Handloser
www.riedel-wilks.com
Design-build general contractor specializing in PEMB applications and industrial supplier of pre-engineered buildings
Roncelli Inc.—Both
Sterling Heights, Mich.
Gary Roncelli, Thomas Wickersham, Gino Roncelli
www.roncelli-inc.com
New construction, additions and renovations to metal structures, steel framing, IMPs roof and wall panel systems
Rudolph Libbe Inc.—Both
Walbridge, Ohio
www.rlgbuilds.com
General contractor, metal building, metal roofing, retrofit
Russell P. LeFrois Builder Inc.—Both
Henrietta, N.Y.
Richard LeFrois
www.lefrois.com
General construction, steel erection, metal roofing
S&S Structures Inc.—Both
Blandon, Pa.
Tim Seyler
www.ssstructures.net
Supply and erection of metal buildings and conventional steel, IMP, ACM, specialty claddings
Scenic Ridge Co.—Both
Gordonville, Pa.
Jay Elam King
www.scenicridge.com
Metal buildings, renovations, turnkey construction services
Schuh Construction—Tonnage
Seymour, Wis.
Kurt Schuh, Karl Schuh
General Contractor, metal buildings, new construction, additions
Schwisow Construction Inc.—Both
Lincoln, Neb.
Doug Blum, Randy Harre
schwisow.com
General contracting firm specializing in the design and construction of commercial and industrial facilities.
Seacon LLC—Both
Issaquah, Wash.
Bob Power, Rob Howie, Steven Caniglia, Eric Reese, Bruce Adair, Ben Blegen
www.seaconllc.com
General contractor, construction manager, design-build project development, supplier of structural, pre-engineered metal buildings
Septagon Construction Co. Inc.—Tonnage
Sedalia, Mo.
Stace Anderson, Brad Leonard, Michael Russell
www.septagon.com
General contractors, design-build, reroof and construction management in non-residential markets, specializing in pre-engineered buildings
Soule Building Systems Inc.—Square Footage
Santa Rosa, Calif.
Josh Johnson
www.soulebuildings.com
Metal buildings
Span Construction & Engineering Inc.—Both
Madera, Calif.
Employee owned
spanconstruction.com
Design-build general construction
Steel Vision Construction Inc.—Both
Rigby, Idaho
Michael L. Bressler
www.steelvisionconstruction.com
Metal building contractor
Steel Worx Solutions LLC—Both
Groveland, Fla.
Stephanie van Rooyen
www.steelworxusa.com
Furnish and erect pre-engineered metal buildings with concrete and fabrication capabilities
Steelcan Building Systems Ltd.—Both
Oshawa, Ontario, Canada
Marc Versage, Ben Gunn
www.steelcan.ca
Metal buildings
Steelsmith Inc.—Both
Pittsburgh, Pa.
Donald T. Gilmore
www.steelsmithinc.com
Pre-engineered metal building sales and erection
Superior Metal Services—Both
Boerne, Texas
Stephen S. Schiffman, Dave Morgan
smsmetalco.com
Metal construction, new construction, metal buildings
Tedesco Construction Services Inc.—Both
Lewiston, N.Y.
Jeffrey M. Tedesco, Justin M. Tedesco
www.tedescoconstruction.com
Metal buildings
Teton West of Washington LLC—Square Footage
Pasco, Wash.
Jamie Washburn
Metal buildings
The Fleming Construction Group—Both
Tulsa, Okla.
Bryan Bickle, Tom O’Brien, Justin Willett
www.flemingconstructiongroup.com
New construction, metal roofing, retrofit
Thomas Phoenix International—Square Footage
Eastampton, N.J.
Eric T. Kay, Sean T. Smith
www.thomasphoenix.com
Pre-engineered metal building erections, retrofit roofs, metal roofing, new construction
Toneman Development Corp.—Both
Lancaster, Calif.
Eric Kelly
www.tonemandevelopment.com
Metal buildings
Ultimate Steel Erection Inc.—Both
Rexburg, Idaho
Kay Burrell
www.ultimatesteelerection.com
Supply and erection of steel buildings
US Metal Builders Inc.—Both
Pleasant Hill, Iowa
Brandon Jensen, Brad Churchill
www.us-metalbuilders.com
Metal buildings, retrofit, data centers, new construction, design-build, reroofs
Wagner Construction Co. LLC—Square Footage
Leesburg, Fla.
Brennan Smith, Jeffrey Sweet Jr.
www.wagner-florida.com
General contractor, commercial construction
Wallace and Smith—Both
Bakersfield, Calif.
Bart Wallace
www.wallacesmith.com
Metal buildings
Wright Construction Western Inc.—Both
Saskatoon, Saskatchewan, Canada
Lorne Wright
wrightconstruction.ca
New metal buildings, metal roofing, renovations, general contracting
WS Construction Management LLC—Both
Sioux Falls, S.D.
Eric Ward
www.wsconstructionmanagement.com
Specialize in steel and metal building construction, wood-frame buildings, concrete structures and pre-engineered metal buildings
