Remove one piece better, because if the rise to increasing pressure from timber extraction or other layers. No two pieces of wood are all helping. All the wood to prevent falling.
Remove one piece better if the rise indefinitely. Or get the wood from pulling others out. No two pieces of wood, all the weight will not help them. In order not to fall for all wood
Remove one better, because if the rise to the passive or strength of wood pull another floor. No two pieces will help the weight of all the wood to wood all fall down.