Cuantificación del aprovechamiento de la madera de Cordia alliodora y Triplaris cumingiana en la fabricación de muebles en la parroquia Simón Plata Torres, Ecuador.

Abstract

This research aimed to quantify the use of Cordia alliodora and Triplaris cumingiana wood in the furniture manufacturing process. To determine the yields, the final volume was related to the different stages of the process, divided by the entered raw material and multiplied by one hundred. The time was also measured with a stopwatch in the various stages of the furniture manufacturing process. Along with the waste through the sawdust generated by the use of the edger and thicknesser machines, which was obtained with the difference between the volume of the entered sawn wood and the one acquired after the process. For the two carpentry workshops’ profitability, the gross profit margin (GBM) and the net profit margin (NPM) were calculated through an Excel spreadsheet. The results indicate that the yields in both joinery workshops are very similar, 50.59% and 51.09%, respectively, for Cordia alliodora and Triplaris cumingiana timber, with an average sawdust waste of 32.27%. Concerning time in the furniture manufacturing process (design, cutting, edging, sanding, assembling, finishing) with Cordia alliodora and Triplaris cumingiana wood, these were 2701.91 minutes and 2555.39 minutes, respectively, and the profitability per sale of furniture with both kinds of wood understudy generated a net profit margin of US$6.20 for the H&M carpentry workshop and US$10.17 for the Ibarra carved carpentry workshop.