Steel Manufacturing Blog: Keeping it Steel

The Knock-out Block Wedge: Removable and Reusable

Posted on Thu, Oct 08, 2020 @ 11:34 AM

One of the most common and basic products used in steel fabrication and other construction trades is the steel wedge.

A wedge is used in numerous construction applications, including but not limited to: separating, leveling, aligning steel plate, or underpinning. While The Steel Supply Company carries a deep stock of standard wedges, we also carry a unique variant called the knock-out steel wedge.

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Often, a wedge is designed to be placed permanently in a construction project, but there are situations where it is only meant to be placed temporarily and later removed. In these cases, the efficiency and safety of removing a wedge is paramount, and that’s exactly what the knock-out steel wedge is used for.

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While more complex to manufacture, there are two distinct advantages of having the additional block. One, on installation it will stop the wedge from being driven too deep. Two, if a clear area exists to swing a hammer on removal, the knock-out block presents a solid surface which allows for removal in just a few clean strikes. Most often, however, the inner face is obscured, but in these cases the square top of the wedge creates a leverage point that allows for fast and easy removal with just a crowbar.

As with any wedge the slope controls the lifting force. The shallower the incline the more lifting force is created on impact, however greater force is required for removal. We provide a brief description of relationship between a wedge’s properties on our blog. These factors should all be considered when choosing the dimensions of a Knock-out Block Wedge.

If a knock-out block would suit your projects’ needs, feel free to fill out our online request form or give us a call, and we’ll provide you with a quote shortly.