by Captain James R. Watson

A deck crown tram is a device used to describe a specifc curve or crown of a deck regardless of the deck’s width. To make a deck crown tram, begin by laying out a baseline on a piece of plywood. Make the line the length of the largest (widest) deck beam. Drive a nail at either end of the baseline to represent the beam ends (points A and B). Draw a centerline between points A and B. Continue reading →