Fiberglass likes to splinter, and weakens over time. Each set may cost less than metal, but you will end up purchasing more of them over time. It will depend on how often you use them. Have you looked into the PSP(steel?) It is FAR stronger than aluminum, but slightly heavier. Also, hovercraft ******!
Howdy all,
I submitted a post back in July, 2011 about my use of the Marsden Matting for sand mats and temporary bridges. While somewhat heavy (approx. 28 lbs.each) they are VERY STRONG and VERY HEAVY DUTY. They suited my purpose and they were quite cheap. I hope this info is helpful to someone.
Cheers, Stevo
It's been a few years, but I remember seeing a pretty good surplus yard up there.