The deck I have for my FF20 is pretty heavily made. It's a model 917.253650.
Mine has gone through a natural weight loss program and now has many holes for increased air circulation. It has been repaired multiple times with lots of added metal and some interesting brass brazing work. One of the spindles is completely rusted out on the deck. Then the previous owner brazed plates back in to support the spindle. But there are holes 2 inches across and a bunch the size of a dime. It even has re-bar bent and brazed across the entire front of the deck.
Here are some Deck images
Since this one rusted so bad, I assumed the older ones had a thicker gauge metal
Edited by MountainBuzzMan, April 26, 2015 - 09:34 AM.