Quote:
Originally Posted by Crows Nest
I’m thinking of installing a flush/recessed table mount in front dinette of 21NE. I’ll have to cut a 2.25” diameter hole in the floor. The mount extends about 1.5” down from top of floor. Am I going to cut into anything that I shouldn’t?
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Absent a raised section inside your trailer, that type of cast aluminum cup post mount will extend slightly through the shell. It's less than 1-1/2" thick from the inside top of the vinyl finish floor to outside bottom of the shell; I know this from drilling through the floor for bolts to install an under-trailer spare tire mount (those bolts being 'hidden' in the steps to the loft in my 5.0).
ETI does not route anything under the plywood subfloor when they bed it in resin to the bottom / floor of the shell. You'll encounter nothing (electical, etc) between the inside vinyl finish floor and the outside of the fiberglass shell. You will need to check carefully to ensure you don't hit anything below the shell (frame crossmember, tank. propane line / bracket, etc).
Tip: Save the 'plug' from your holesaw cutout; it'll be useful if you ever want to 'restore' the hole through your trailer floor. If you use a short pilot-bit in your holesaw and remove it before you hit the fiberglass layer, the resulting 'plug' won't have a center hole to patch.
(I wish I'd had those 'plugs' from the factory-installed 'cast aluminum cup flush post mounts' in my Casita trailer; it'd have simplified 'restoration' when I removed them. They were not a favorite table mounting system of mine. YMMV.)