Originally Posted by Mauricewade
Does anyone know of a company that makes a lightweight aluminum leveling block. Using wood is so heavy, and I have read many people do not like the plastic ones because they break overtime.
While your thoughts of using aluminum are good, it IS going to cost you and arm and a leg to get what would be good enough to hold any weight, without bending or, cracking etc. That stuff is not cheap. All of us (at least the ones that use any type of leveling blocks) would like what you're asking for. And that is something light and strong enough to assist in leveling a coach, when needed but, not cost us 4 mpg because of hauling and handling that much extra weight. There is no definitive answer here. NASA hasn't come out with any super wazoo material yet that can do this job for us RVers and yet, still be able to afford it.
Yes, there are the "Leggo" plastic ones sold at C/W and other RV supply centers. They work. We've all seen them under many types and weights of RVs out there. It all depends on if you want to carry enough of them to be of value. I've always carried some lumber. I presently carry some 4x12x20" that are beveled on one end for using under the duals, if and when needed. And, I've got a small other supply for the fronts, again, if and when needed.
It's hard to determine just what to carry, based on what could be your needs, at any given time. But, I think, unless you've got a brother in law that owns part of Alcoa Aluminum, you're going to find out that, pieces of aluminum that would suffice for your application, might cost you a second mortgage on your home. Good luck.