Is there a formula for woodworking to calculate the area of stained plaster

First top plate area: first according to the drawings given by the X to the Y to the dimensions were added to the side of the dimensions of the total area, this has included the square of the beam bottom plate, so the square of the beam only need to be counted when the square of the beam to help the plate can be counted. Then there is the area of the column: perimeter × net height, perimeter of the simple method of L-type columns as an example, for the two outer edge length × 2, other columns can be similar, in addition to calculate the area of the column cross-section with the area deducted from the top plate area, column cross-section area algorithms are also L-type columns as an example, for the length of one outer edge plus the other inside the length of the sum of the x width of the column, a single calculation of columns and cross-section area of the unfolding surface and then add up respectively. Then the beam gang: the precise algorithm to calculate each beam separately, the two sides of the gray thickness is not the same should also be calculated separately, easy way, the same large beam, the length of the sum × beam gang net height.