Income analysis costs in Pinus taeda sawn wood using two methodologies

Abstract

This study aimed to examine the cost structure of Pinus taeda sawn wood using two methodologies of log sawing, called conventional and optimized systems. The logs diameter ranged from 18 to 44 cm. A total of 100 logs were tested, being 50 logs divided into five diameter classes for each sawing system tested. Using the conventional sawing method, the fixed costs accounted for 12.03% of the unit production cost. From these, wages and social charges accounted for 9.22% of the total unit production cost, and for 76.61% of the fixed costs. The variable cost represented 87.97% of the total unit production cost, and the logs acquisition accounted for 84.64% of the variable cost. Using the optimized sawing system, the percentage of fixed cost increased to 14.87%, due to the decrease in the variable costs. The participation of variable cost unit accounted for 85.13% of total the unit costs, showing a reduction of 3.23%, compared to the conventional sawing method. The reduction in the total cost using the optimized sawing method was 5.12%.