You have probably gone to buy paint and since you didn't know exactly how much you needed, you ended up buying too much or too little...
Don't worry, we are going to teach you how to calculate the liters you will need to paint any piece of furniture or object.
You will only need a meter and the piece of furniture in question, we are going to do some very easy operations. We are going to calculate the size of the upper surface, the lower surface and each side, for this we will need:
Step 1. Calculate the top and bottom surface.
Let's multiply the meters of length by the meters of width.
Example: A chest of drawers measures 1,90 metres long by 1 metre wide. To calculate the m2 of the ceiling or floor, we multiply 1×1,90. The result would be 1,90m.
Once we have calculated the square meters of a cover, we must multiply by 2 to know the total of the ceiling and floor, 1,90 × 2 = 3,80.
Step 2. Calculate the surface area of the sides or walls,
We will have to add up all the linear meters of all the walls. We select one of the sides and multiply the base measurement by the height.
If the sides are exactly the same, we multiply the result by the number of sides that the piece of furniture has, but if all the sides are different, we will have to find out the surface area of each side individually and add up the results of all the operations.
Example: The chest of drawers has 2 equal sides and 2 other equal sides. The front and back sides measure 1,90m wide and 1,4m high, which is 1,90x140. The result would be 2,85m
The other two sides measure 1,50 wide and 1,40 high, 1,50x1,40 would be 2,10m
As we have said, the front and rear sides are the same, so we must multiply by two the result we have obtained, 2,58 × 2 is 5,16, so we already know the front and rear surface and to know the total we will add to this figure the surfaces of the two sides that we were missing.
2,10 × 2 = 4,2
4,2 + 5,16 = 9,36
Step 3. Total square meters.
We already have all the square meters calculated, now we just have to add up everything we have obtained.
We add the surface of the base and the upper part that we have calculated in phase 1 plus the total obtained from phase 2.
3,80+9,36=13,16The chest of drawers we want to paint has a surface area of 13,16m to be painted, so we can now calculate the paint we will need.
