1. Measure the width and depth of the kitchen with a ruler to ensure accurate size data.

2. When drawing a plan on paper, mark the positions of load-bearing walls, doors and windows. These elements are very important for the kitchen layout and the determination of column positions.

3. Mark the position of the column on the wall and measure the width and height of the column with a ruler. Ensure accurate measurement, so as to accurately represent the position and size of the column on the plan.

4. According to the size of the column, draw the three-dimensional shape of the column and clearly mark its position on the plan. This can intuitively show the influence of columns on the kitchen layout.

5. Draw the plan of the kitchen according to the size of the kitchen and the position of the column. Ensure that the size ratio in the plan is accurate and clearly show the position of the column for reference in the follow-up work.

6. Mark the specific locations of kitchen facilities such as cabinets, sinks and stoves on the floor plan. This can help you to consider the existence of columns in the design and construction process, and ensure that the placement of facilities is in harmony with the position of columns.