一、近似計算方法：地面面積×3(3面墻)÷(墻布每卷平方數)+1(備用)=所需墻布的卷數

       二、精確計算方法：所需墻布的總幅數÷單位卷墻布所能裁切的幅數=所需墻布的卷數。

1、所需墻布的總幅數=要粘貼墻布的長度÷墻布寬度；

2、單卷墻布所能裁切的幅數=墻布長度÷房間高度；

3、不同高度的墻布需要分開計算、匯總求各。

需要注意的是，不同的圖案對墻布的用量會造成一定的影響，10%-20%的損耗是正常的。

◆Approximate Computing Method:floor area×3(3 walls)÷(the quantity of per roll of wall cloth,by square meter)+1(spare)=the quantity of required wall cloth,by roll.


       ◆Exact Computing Method:Total pieces of required wall cloth ÷Pieces can be cut one roll ＝Rolls of required wall cloth.
1.Total pieces of required wall cloth＝length of used wall÷width of wall cloth
2.Pieces can be cut one roll ＝length of wall cloth ÷height of room
3.Different height of walls should be counted individually,then adding together to make a summation.
Please note that different patterns will have certain influence to the use level of wall cloth.and 10%-20% of wastage is normal.