Joist Orientation for Hardwood Floors

JubileeBay

Would like to rip up current hardwood floors and carpet, then lay hardwood flooring running all in one direction on main floor of house. The joists run both with and perpindicular to the direction of laying the new wood flooring.

Is there a way to add stability to the joists that would run with flooring dirrection so that we would not incur "waving" or "rippling" of the flooriing that would end up running with the joists instead of perpindicular to the joists?

Would the following work?
1. Cross bracing every 18" between the joists?
2. Using cement board for the subfloor instead of OSB or Plywood?

woodman58

If joists run in different direction then simply lay the wood diaganally. This is the easiest fix.

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