It is not irregular, smooth or wood. Contractors will be required to make corrections by scrub or change to new and clean, consistent color throughout the area. By the contractor's expense.
Or planks are uneven, irregular employment must be corrected by polishing or replacement. And painted a uniform color throughout. The cost of the contract.
Wood grain or unstable. To modify contractors by polishing or change to the new. New paint colors and achieve uniform throughout the area. The cost of the contractor.