Start witht he loose end - do not tighten that rivit because its mean to be accurate when you measure the length of a board and when it flops back, it gives an accurate measurement of the distance between your door jambs. That, other than being able to recognize numbers and some 'special' features that are on 'some' tapes is about it.
Courtesy of Ren Molnar, Construction Consultant at HomeFocus.com. I can also be reached at (613) 748-3003 and Home Focus – The Radio Show is broadcast live 8 to 10 A.M. (Ottawa, Ont. time) on Saturdays on www.cfra.com. In the interests of retaining credibility and in fairness to all, I cannot recommend prices, people nor companies for various projects.