The length and width are K for the modules (ie 1K = 1.82m), Height: to P for the module, (1P = 0.895m), usually 1-2 layers. Length: Number of extension by K combination; width: 2K (3.79m), 3K (5.61m), 4K (7.43m), 5K (9.25m); height: slant standard for the single-3P (2.69m), double layer 6P (5.37m); flattened standard single-layer 3P +290 (2.98m), double-6.5P +290 (6.12m). Other specifications can be customized. Single area = (length of the K number of X1.82 +0.15) X (width direction of K number of X1.82 +0.15) X2 double area = single area of activity room stairs area calculated according to the level of projected area. Platform area of half of the actual area of activity room pricing principle: According to the square meter price: square * Price + Shipping = final price