People who have installed windows in the balcony often complain that "there are only one or two thousand of them, but the price given by JS is three or four thousand. The price gap is so large that it must have been black...." Perhaps it was JS, Maybe the previous algorithm itself is wrong. Due to the wide variety of windows and windows in the balcony, there are many ways to price the windows on the market, which makes people confused. Xiao Bian here to help you summarize some of the window pricing rules, there is a need for friends can use it to try to calculate the home window price, it is not afraid to be JS black.
First, on the window area pricing rules
The window of the balcony window mainly has two types of translation windows and flat windows. Because of the different aluminum materials and accessories required, their pricing methods are also very different. So before choosing a window, you need to determine the style of the window.
Pan window
[Panning window height ≤1.3m] Pan window area = panning window width × 1.3m
[Pitch Window Height>1.3m] Pan Window Area = Pan Window Width × Pan Window Actual Height
[A single panning window area] A single panning window area ≥1m2
Xiaobian's words
The height of the pan window A is 0.92m, which is less than 1.3m, and the area is calculated according to 1.3m; the height of the pan window B is more than 1.3m, and the area is calculated according to the actual size. While a group of push-pull panning windows is a single window, their area is more than 1m2, so the actual area will be priced.
Casement window
[a casement window area ≤1m2] 1m2=pan window width×pan window height
[a casement window area>1m2] Casement window area=pan window width×pan window actual height
Xiaobian's words
The casement window is calculated as 1 m2 out of 1 window, and the area of ​​the casement window A is 0.66 m2, less than 1 m2, calculated as 1 m2. The casement window B is actually two casement windows, so it counts 2m2.
[Another note: The sliding door and the open door are calculated according to 2m2, which exceeds 2m2 according to the actual calculation. 】
Second, the balcony window total pricing rule
Calculate the balcony window area mainly considers three aspects: 1, balcony window frame structure (split box / overall box); 2, balcony window modeling (I-shaped / L-type / U-type / arc type); 3, the user's Special needs (materials/colors/other processes).
1. Balcony window frame structure (split box / overall box)
Split window
[Panning window height ≤1.3m] Pan window area = panning window width × 1.3m
[Pitch Window Height>1.3m] Pan Window Area = Pan Window Width × Pan Window Actual Height
[Lower Fixed Window Height ≤ 1m] Lower Fixed Window Area = Pan Window Width × 1m
[Lower Fixed Window Height>1m] Lower Fixed Window Area = Pan Window Width × Actual Height of Lower Fixed Window
Split window area = panning window area + lower fixed window area
Xiaobian's words
The height of the panning window and the height of the lower fixed window of the split window A are all less than the defined 1.3m and 1.0m, so the minimum standards of 1.3m and 1.0m shall be calculated; and both heights of the split window B exceed this criterion, Calculated according to the actual height.
Overall window
Pan window unit price = lower fixed window unit price
Overall window area = panning window width × (panning window actual height + lower fixed window actual height)
Xiaobian's words
Compared with other windows, the overall window area is calculated at a glance, which is also a common method used by most people.
Arc window area = (diameter + height +600mm loss) × window hole height
Xiaobian's words
This formula is very clear, small series will not be an example. If the entire balcony is arc-shaped, you can directly use this formula to calculate; if half is a common balcony, half is a circular balcony, then calculate the area of ​​each area separately, and then add them, you can calculate the entire balcony window area.
2, balcony window modeling (I-shaped / L-type / U-type / arc type)
In order to make the window frame more stable and strong, generally two sets of auxiliary materials are required in the middle of the two panning windows (four fans), which are called “neutral columnsâ€; one auxiliary material is required between the panning windows and the lower fixed windows, which is called “beamâ€; The corner of the balcony needs to add a circular column, called "corner column." They are not included in the standard range provided by the balcony windows. They must be based on the actual shape and size of the home balcony.
Neutral column cost = actual height (m) x unit price
Beam cost = actual width (m) x unit price
Corner column cost = actual height (m) x unit price
I-shaped balcony window cost = balcony window area × unit price + column cost + beam cost + user special needs
(Most I-shaped balcony windows have 1 center column and 1 cross beam. If the balcony is longer, the number of center columns will tend to increase.)
L-shaped balcony window cost = balcony window area × unit price + column cost + beam cost + corner column cost + user other special needs costs (most L-shaped balcony window has 1 middle column, 2 beams, 1 corner column The number of center pillars is also based on the specific size of the balcony.)
U-shaped balcony window cost = balcony window area × unit price + column cost + beam cost + corner column cost × 2+ user other special needs costs
(Most U-shaped balcony windows have one center column, three beams, and two corner columns.)
Arc type balcony window cost = arc window area × unit price + column cost + beam cost + user special needs
(The arc-type balcony window also has a center column and a beam. The number and size of the arc-type balcony windows are mainly determined by whether the balcony is large or small.)
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