140×19

140x19 refers to a common lumber dimension, specifically the nominal size of a piece of sawn timber. In this designation, 140 represents the nominal width and 19 represents the nominal thickness, both measured in millimeters. This size is frequently encountered in construction and woodworking applications.

It's important to understand that these are nominal dimensions, meaning they are the size of the timber before it has been planed or finished. The actual, or "dressed," dimensions of a 140x19 piece of lumber will be slightly smaller. For example, a dressed 140x19 timber might actually measure closer to 135mm in width and 15mm in thickness, depending on the milling process and standards.

This lumber size is commonly used for framing, sheathing, and general construction purposes. Its dimensions offer a balance of strength and manageability for various building tasks. The specific wood species used for 140x19 lumber can vary widely, influencing its strength, durability, and suitability for different environments. Common species include pine, fir, and spruce. The availability and cost of 140x19 lumber are influenced by regional timber resources and market demand.