Table of Contents
About the Timber, lumber. The hard fibrous lignified substance under the bark of trees stock sizes
Only two common stock sizes (widths and thicknesses) are required for this project.
They are Surfaced; planed; smooth; even surface; gauged. or See Dressed. 100 Abbreviation for millimeter which is a metric unit of length equal to one thousandth of a meter. 25.4 mm equals one inch. x 50 mm (2″x4″) and 100 mm x 25 mm (1″x4″).
When 100 mm x 50 mm (2″x4″) wood is dressed or surfaced, the size becomes approximately 90 mm x 45 mm (1 ½”x 3 ½”) which is called the ‘actual size’.
When 100 mm x 25 mm (1″x4″) wood is dressed or surfaced, the size becomes approximately 90 mm x 20 mm (¾”x 3 ½”) which is called the ‘actual size’.
All the measurements referred to in this project are the ‘actual sizes’.
Use a wood that is suitable for exterior use.
Dimensions for this project are given in both Millimeter measurements. and Standard. Feet and inch measurements.. All measurements are given in millimeters first, followed by feet and/or inches in brackets ( ). The metric sizes are not an exact match to the equivalent imperial sizes. A chair built using the metric measurements will be approximately 1.6% smaller than a chair built using the imperial (ft and in) measurements. The imperial measurements are more suited to North America. The metric measurements are more suited to Australasia.