Decoration material general size data and loss indication

Most of the decorating materials used are fixed, and cutting and splicing are required in the concrete construction. Inevitably loss will occur during the operation process. Generally, the loss is divided into the following categories:

1. Calculated by area

The geometrical dimensions of wall and floor tiles, wooden floors, and ceiling buckles in such decoration materials are relatively small, and generally they are monolithic constructions. Cutting and splicing are required at the four sides and the yin and yang corners, etc. Therefore, its geometric size and room type The size of the fit, length, width, height, and the directionality of the wall tiles will affect the loss rate, and the larger the geometry of the material, the greater the loss, and the smaller the construction area, the greater the loss.

The common materials and common specifications calculated by area are shown in the table below:
Unit: mm

Another type of artificial board, wallpaper (cloth) and other materials, the relatively large geometric size, generally after the construction of cutting. In the construction of decoration, it is mainly used for doors, door and window covers, cabinets, and wall surfaces, etc. Among them, for the construction of the base layer, such as fine wood flooring, medium density board, multi-layer board, etc., the splice arbitrariness is strong, and the relative loss is also relatively high. Low, second, for decorative artificial plates and other decorative surfaces and wallpaper (cloth), the texture, direction of floral decoration, spacing distance and other factors will cause the difference in the loss rate, the same texture, floral directional requirements, the greater the separation distance The greater the loss, and the fit of its geometry to the size of the construction area also affects the loss rate.

2. Calculate by length
The loss of this type of material is mostly caused by the inability to use reserved or too short materials. Such as: wires, telephone lines, network lines, cable television lines, the theoretical length of 100m is the length of the tension on the basis of tension, and the actual construction of the line when the person's physical strength can not be straightened, the general practical The wire can only reach about 95m, and in the process of wearing the tube, the wire in the tube must not have a joint, so when the length of the after-line cannot reach a certain length, it cannot be used. Also in the wood, solid wood skirting and various types of pipe, the configuration process can not be completely integer size, sometimes there are less than 300 ~ 500mm of material, can not be used, this will have different losses.
According to the length of the commonly used materials and common specifications, see the following table:
Unit: mm
 

3.   Pieces
Most of the coatings used in home decorating are 5L drums. The loss is different according to different construction methods, such as painting, spraying, and depletion. The brushing area on the manual is only theoretical data and will be generated in the actual construction process. Drip, and drum, paint brush adsorption residue, spray splashing, etc. will have losses, for oil paint thinners in the washing construction tools, etc. should also be considered, the loss of adhesive agent consider similar coatings. Others such as switches, socket boards, cassettes, hardware, etc., decorating companies should be based on actual calculations with customers.
Specially pointed out that the loss of paints and adhesives generally considers the complete use of the whole barrel. In special cases, such as localized small-area finishing, the entire barrel cannot be completely used, and the remaining amount is large, resulting in high losses.

4. The main material loss reference table

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