How to lay out a building or Structure
After finalizing the plan and design, the construction activity can be started. After that, The first step in construction activity is site clearance. It was then marking foundation trenches which are going to be excavated. The excavation lines which are marked on the site is known as building lay out.
METHOD IN BUILDING LAY OUT
1. At first you need to mark the building lay out and tie a line to the corner post, a nail at the top of the post.
2. A triangular square is placed to find out the corners at 90 degrees angle. After that ranging rod is required to find the straight line between two points.
3. Corner post are usually timber post which are usually 50mm x 50mm set in the ground and mark with the nail at the center of the center.
4.The outlines are marked by dry lime powder or other marking spray.
5.Profile boards are set at a height of 0.60 - 1.0 Meter.
6.When the outline of the building is more complex than a simple rectangle, Then it is necessary to fix up some points.
7.Sometimes for the irregular building shapes, at first lay out a large rectangle which will cover the entire building. Once it will be done, deductions and alternative can be made to obtain the lay out.
