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Metal Building and Carport Kit Technical

Alabama Metal Buildings and Metal Carport Systems

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At Waldrop Manufacturing we’re dedicated to constant improvement. This page will address particular components of our metal buildings and steel carports and why we make them the way we do. Wherever possible, we included pictures for greater illustration.

Exterior Panels

To say we know steel panels would be an understatement. We know them well and we want you to know that we use only steel panels with minimum yield strength of 80,000 pounds or 40 tons of pressure per square inch. That means the steel used on the exterior of our Alabama metal buildings and steel carports can withstand that kind of pressure before "going plastic" or "yielding".

We also deliver the best protective paint system on those panels  and we invite you to learn more about that at our Available Colors page. There you can also read the terms of the 40 year paint warranty against fading, chalking or peeling.

Steel Frame System

There is a reason our metal buildings and steel carports are in use by thousands of private and commercial customers. The reason is simple - we meet or exceed their specifications. Our steel is tested and proven to be stronger and more corrosive resistant than any other steel on the market.

We use 65,000 psi minimum yield strength steel in all our metal buildings in Alabama. The competition uses a maximum of 50,000 psi steel.  In many cases you have no idea what strength the steel is because it’s from Mexico or China where they are not required to meet any strength criteria.

Alabama Metal Building Components Without Compromise

Base Rail System

The base of any metal building or steel carport requires strength and support. The rest of the building depends on that base and most of the stress rests on it. Waldrop Manufacturing uses an insert system which means none of those base rail uprights contain any fabricated parts which can lead to weakened connections. In other words, we don’t use any type of crush, rolling or bending process in the vertical uprights of our base rails. This requires more labor but we think it's worth it. Here’s why:

  1. The base rail system can be damaged by any water or condensation occurring at the bottom. We use rugged 14 gauge steel pins or inserts at the bottom because these thicker, consistent connections bear the weight of the structure better than machined or formed parts.
  2. All the upright vertical insert pieces are 12” tall which gives more flexibility in adjusting to any onsite irregularities in your land.  Uncompromised steel is the best way to achieve that.
  3. The connection at the base rails needs a very consistent fit.  Sometimes two or more people are needed to lift the frame system and then lay it down over the insert or pin. If it didn’t go on easily and still fit like a glove, you might be very upset with us.

The Worst Connection

A Better Connection

The BEST Connection


Side Walls - An easier assembly and a stronger wall.

  1. It is obvious  that a single piece sidewall is going to be stronger than one that uses multiple pieces.
  2. Fewer connections joined together make for fewer man hours during assembly.
  3. This achieves a perfectly straight wall that can easily be adjusted in the field if necessary.

These two pictures illustrate a multiple piece sidewall (inserted pieces used to extend a sidewall height)

Multi piece sidewall
Their Multi-Piece Sidewall
Too many parts equals more points
that can fail. Not only that, too many
parts make for harder installation.
single piece sidewall
Our Single Piece Sidewall

Our single piece sidwall not only makes
for easier installation, it makes for a
stronger sidwall.

Peak and Eave Bends - The Power Bend

Many people know that steel is made stronger with curves and angles. Think of the body of your car; if it did not have those contours and angles, the car body would not be as strong as it is. We apply the same principle to our bending process in order to ensure strength.

We fabricate the Power Bend for our metal buildings and steel carports by a process which adds six more surfaces/angles to the bend.  Therefore, instead of weakening the steel, we strengthen it.

Let’s look at the different ways bends are created and see for ourselves why Absolute Steel makes a better product:

The Crush Bend

The Crush Bend

This is the worst technique.

It weakens the steel precisely where it should not. As a side note—look at the joints; they only used one screw on each side. That kind of laziness will result in someone getting hurt!

The Mandrel Bend

The Mandrel Bend

The company that produces this makes the claim "smooth mandrel bend for a cleaner look and stronger bend transition”.

We beg to differ. You can’t stretch metal and make it stronger.

See the stress marks on the tube where its been stretched? Those are now severely weakened areas exactly where you don’t want them.

The Power Bend


The Power Bend is a result of rolling the excess steel while the curvature is created. The rolled edging now gives strength to the transition curve.

Not only do we have the original integrity of the steel intact, we have added strength and durability.

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