Yes, exactly as you describe and it fits perfectly under the deeper steps and rear threshold.Hi sorry to ask about your floor was your top coat the 7 mm insulation dodo so that means you did a 7mm ontop of the ridges 9 mm ply then did you add a top sheet say 2mm altro
That’s adds to 18mm did that all fit under the side step deep and the rear threshold?
Also you said you screwed it down was that just through the top board through the dodo layer then into the battens ?
If so did you find the dodo layer compress much
Any other pictures would be helpful pls
Any issues fitting step or threshold lashing points afterwards cheers
Screwed into the batons, not through the floor.
Lashing points require longer bolts readily available from screwfix.
The 7mm does compress, but after 2 1/2 years it hasn’t compressed any more to a point where there is a gap under the side step. I think all the compression occurs when the weight of the ply and Altro is placed onto it.
In all honesty I don’t know if there’s much benefit. The floor is always pretty cold when the weather is cold.