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How Tight Should An Maxi Props Be?

Published 12 February 2019

Maxi props are essential for supporting load-bearing structures such as timber beams or masonry supported by strongboys or timber needles. When used properly, a sufficient number of well-maintained and correctly tightened Maxi props can easily support a wide range of building projects.

However, if you’re using Maxi props for the first time or simply want to ensure their safety for your next project, you might be asking: How tight should Maxi props be? Should you tighten the outer tube fully? Is there a risk of damaging the prop if you over-tighten it?

In this guide, we’ll explain exactly how tight you need to make your Maxi props when supporting load-bearing structures. Continue reading to get all the essential details.

How Tight Does an Maxi Prop Need to Be?

To get the right amount of tightness, simply tighten the Maxi prop as much as you can by hand. When supporting heavy loads, you want to avoid any loosening of the prop. If the outer tube shifts or collapses, it could create an eccentric load and lead to loss of support, which is dangerous.

For maximum safety, always distribute the weight across multiple Maxi props. Once you’ve positioned each prop and placed the sole plates, tighten them as much as you can. Make sure to consult a structural engineer to determine the correct number of props based on your specific project needs.

How to Tighten the Maxi Prop

Follow these steps to tighten your Maxi prop correctly:

  1. Use a Standard Box-End Wrench: Choose a box-end wrench that fits snugly over the bolt. This tool will let you tighten the bolt securely.

  2. Hold the Prop Firmly: Use a gloved hand or a rag to hold the Maxi prop in place. This helps prevent injury and ensures the prop stays steady while tightening.

  3. Tighten by Hand: Turn the bolt as tightly as you can by hand. Keep tightening until you can no longer turn the wrench.

Can You Over-tighten the Maxi Prop?

Maxi props are built with high-grade steel, so you don’t need to worry about accidentally over-tightening by hand. The outer tube, inner tube, and bolt, as well as the threads, are designed to handle significant force. As long as you’re turning the bolt by hand, you won’t damage the prop.

However, avoid using power tools like impact wrenches or air guns to tighten the bolt. Over-tightening with power tools can strip the bolt’s head, making the Maxi prop unsafe and difficult to remove. If this happens, you may need to cut the prop away using a saw or plasma cutter, causing unnecessary delays and added costs.

Check Tightness Regularly

We recommend checking the tightness of your Maxi props every few days. Over time, the structure can settle, and the props may become looser. Regular checks ensure that the props continue to support the load correctly and safely.

By following these simple guidelines, you can tighten your Maxi props properly and keep them in optimal condition. This ensures maximum safety and effectiveness, minimizing the risk of accidents or project delays.

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