Is anyone here familiar with scaffolding?

[JJT]

G'mornin.
Became familiar with my scaffolding that has been mine for 8-10 years last Friday morning.
Carelessly went to work 6 ish feet up and one of the oil treated indoor kept 2x10's failed without any sign at all. Needed a piece of OSB to spread my extra Thanksgiving package over more than one board apparently. No injuries other than scrapes on my arms as I went through between the other 2 planks. Yes, I realize how lucky that was.
Shocked me, I take care of them. Scares me to think I was 20 feet up on them last year.
It's been pointed out to me by Mrs. Obvious that aluminum planks for these are only $200. What the problem is is that you usually need several, and I've said it before but I really plan on selling these sets soon so I can't take on these big projects anymore!!
BEEEEE CAREFUL Gentlemen. I cringe when I think of what even a sprain would've set me back.

I've used 2x10's as scaffolding planks for decades, often 20'+ off the ground. I run a 2x4 under the 2x10, the 2x4 is slightly shorter than the width of the scaffolding. It doubles the strength of the 2x10 and the plank cannot slide more than an inch or two, because the 2x4 locks the plank in place.

 

[not2old]

I kept all the scaffolding from my condo repair business and used it to prevent falling off the roof. This was taken when I was 72 and did it all with no help. When still working, almost all the scaffold work was done with hired help and my personal experience was minimal .You just need to be careful and don't take chances. The 10' decks are harder to work with than the 7' decks and yes it would be easier with help.