What qualify as building materials under the itemized sales tax deduction?

We knocked down our old dock and built a new, larger one this year. I know we can deduct the boards, nails, roofing materials for sales tax purposes. We paid for all materials ourselves. What little things qualify? For example, a tv wall mount, permanently installed dock bumpers, lighting, tie down ropes and chains attached to the dock? If it's what we would consider a permanent install, does it qualify?