paper thin bunk plywood
Yesterday I winterized the TT. In the process I had to access the hot water heater and the bypass valve. The water heater is located under the lower bunk. My particular TT model has the double bunk...
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Ah ha, you discovered RV "plywood".
Yeah, it's almost criminal with what they use. I imagine some engineer spent many hours testing foam weight load bearing, attachment schedule, and various dimensions/types of sheet goods to get to the absolute least that would support the weight of 125 lb. person/load.
FWIW, I've made at least 20 RV bunks. The best material is 3/4" BCX plywood, followed by 5/8" plywood, and then to 1/2" plywood. 1/2' plywood will work to a span of 30" but will flex and bend over years of use. 3/4" goods will not bend. The weight difference for a couple of bunks is trivial. Do not use OSB or particle board unless you need something to burn in a few years. To make a very sturdy platform, support the underside of the bunk platform at the midpoint of the longest length. This is where the sleepers hips lie and will be the point of most load.
Good luck with your bunks. BTW, if you're challenged about cutting or transporting larger sheet goods, your friendly helpers at Home Depot stores have the saw to cut your bunk pieces.
Yeah, it's almost criminal with what they use. I imagine some engineer spent many hours testing foam weight load bearing, attachment schedule, and various dimensions/types of sheet goods to get to the absolute least that would support the weight of 125 lb. person/load.
FWIW, I've made at least 20 RV bunks. The best material is 3/4" BCX plywood, followed by 5/8" plywood, and then to 1/2" plywood. 1/2' plywood will work to a span of 30" but will flex and bend over years of use. 3/4" goods will not bend. The weight difference for a couple of bunks is trivial. Do not use OSB or particle board unless you need something to burn in a few years. To make a very sturdy platform, support the underside of the bunk platform at the midpoint of the longest length. This is where the sleepers hips lie and will be the point of most load.
Good luck with your bunks. BTW, if you're challenged about cutting or transporting larger sheet goods, your friendly helpers at Home Depot stores have the saw to cut your bunk pieces.
