The real question is, what does it do when you push on those areas?
When I see ultra light, that usually means ultra thin.
No offense meant John, please take that as light hearted trailer humor.
Hopefully it is of no concern and isn't going to sag on you. Might still be worth it to contact your dealer or FR.
1999 Ford Superduty F250 PSD CC SB 6spd 4x4.
B&W goosneck/companion hitch, Airlift 5000 airbags.
2006 Sierra F28 Rear Kitchen 5th Wheel, 31' = 10k pounds.
Nights camped in 09-14, 2010-23