I've realised that the used BL Ribs 3.6mtr SIB (similar to Honwave T35 AE) that I've bought recently is missing the stringers that keep the floor rigid. Would a T35 owner be kind enough to measure the channel thickness, where the stringers fit over the floor sections. I'm hoping I can just purchase a set of Honwave stringers to sort me out.
Alternatively, I could rout channels down some mahogany, teak etc to do the same job - do you think they'd be strong enough to serve their purpose? The last thing I want is for them to snap and puncture all 3 air chambers!

Thoughts and feedback gladly accepted.