I need help in knowing how many blocks and bags of cement will be enough to complete a 2 bedroom and a sitting room... The room will be a line house where when you enter the sitting room you will be facing both bedrooms one in the left and one in the right.

I want to make the bedrooms each 4 meters length * 4.5 meters width therefore the length of the sitting room will be equal to the length of the two bedrooms which is 8 meters but the sitting room will be cut by 3 meters to accommodate the dinning room which will leave the sitting at 4.5 meters width and length of 5 meters. The house will have a 2 meter veranda. No toilets and kitchen in the house but all will be at the back of the house so don't include that in your advice

I want to know if this measurements are good for a line house. I want your advice too.

I will do german floor and culumn of between 6 to 8. I want the number of blocks needed for such house and bags of cement to do the building from start to finish with german floor, lintel and platering in and out.

Thanks