westend wrote:
Brand, type, and model of material to be used would be helpful.
Most interlocking engineered plank is made to stay together when floated. Using a good underlayment helps the situation.
FWIW, I installed the cheapest laminate Lumber Liquidators had on sale a few years ago. All of it is still in good shape. I used a quality underlayment even though the laminate plank had attached backing.
I saw your story, skimmed all 38 pages. Awesome job on that old camper. But you didn't include much detail on how you did the flooring.