The Constructor

A rectangular plan of a building with the length = 20,000mm and width = 9,000mm and wall thickness of 300mm. It important to first note if the dimensions for a drawing are given from “out-to-out” or “in-to-in”.  The formula for finding the Girth is  2(L + W) ± 4(T) + 2r

fig 1 A rectangular plan of a building with the length = 15,000mm and width = 6,000mm and wall thickness of 300mm. It important to first note if the dimensions for a drawing are given from “out-to-out” or “in-to-in”. The formula for finding the Girth is 2(L + W) ± 4(T) + 2r If the dimensions are out-to-out then the formula turns 2(L + W) - 4(T) + 2r If the dimensions are in-to-in then the formula turns 2(L + W) + 4(T) + 2r

Amazing Structure..