Sizes of polycarbonate sheets

Polycarbonate is a modern polymer material that is almost not inferior to glass transparency, but 2-6 times lighter than it and 100-250 times more. It allows you to create structures that combine beauty, functionality and reliability.

Sizes of polycarbonate sheets

These are transparent roofs, greenhouses, showcases, glazing of buildings and much more. To build any design, it is important to make faithful calculations. And for this you need to know what the standard dimensions of polycarbonate panels are.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Dimensions of cellular sheets

Cellular (Other Names – Structural, Channel) Polycarbonate – These are panels of several thin layers of plastic bonded inside by vertical jumpers (rigidity ribs). Stiffness ribs and horizontal layers form hollow cells. Such a structure in the lateral cut resembles cells, which is why the material and got its name. It is a special cellular structure that gives panels with increased noise and heat-shielding properties. Usually produced in the form of a rectangular sheet, the dimensions of which GOST R 56712-2015 are regulated. Linear dimensional sheets are as follows:

  • Width – 2.1 m;
  • Length – 6 m or 12 m;
  • Thickness options – 4, 6, 8, 10, 16, 20, 25 and 32 mm.

The deviation of the actual sizes of the material from the stated by the manufacturer in length and width of no more than 2-3 mm per 1 meter. In the thickness, the maximum deviation should not exceed 0.5 mm.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

From the point of view of the choice of material, its most important characteristic is its thickness. It is closely related to several parameters.

  • Number of plastic layers (standard from 2 to 6). Than them are more, the thicker and stronger material, better his sound absorbing and thermal insulation properties. Thus, the sound insulation indicator of the 2-layer material is about 16 dB, the heat transfer resistance coefficient is 0.24, and for 6-layer material, these indicators are 22 dB and 0.68, respectively.
  • Location of rigidity and shape of cells. From this depend both the strength of the material and the degree of its flexibility (the thickness of the sheet, the stronger, but the worse there is a bit). Cells can be rectangular, cruciform, triangular, hexagonal, in the form of bee honeycombs, wave-like.
  • Stiffness ribs thickness. From this characteristic depends on mechanical stress resistance.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Based on the ratio of these parameters, several varieties of cellular polycarbonate are distinguished. Each of them is best suited for its tasks and has its own types of sheet thickness standards. The most popular are several species.

  • 2H (P2C) – Sheets of 2 layers of plastic connected by perpendicular jumpers (ribbed ribs) forming a rectangular cell. The jumpers are located every 6-10.5 mm and have a cross section from 0.26 to 0.4 mm. The total thickness of the material is usually 4, 6, 8 or 10 mm, rarely – 12 or 16 mm. Depending on the thickness of the jumpers, square. m material weighs from 0.8 to 1.7 kg. That is, with standard dimensions 2.1×6 meters weighs from 10 to 21.4 kg.
  • 3N (P3S) – This is a 3-layer panel with rectangular cells. Produced thick 10, 12, 16, 20, 25 mm. Standard thickness of internal jumpers – 0, 4-0.54 mm. Weight 1 m2 of material ranges from 2.5 kg.
  • 3x (k3c) – Three-layer panels inside which are both direct and additional inclined ribbins, due to which the cells acquire a triangular shape, and the material itself is an additional resistance to mechanical loads compared to the “3N” sheets. Standard sheet thickness – 16, 20, 25 mm, share – from 2.7 kg / m2. The thickness of the main ribs of hardness is about 0.40 mm, additional – 0.08 mm.
  • 5N (P5C) – Panels consisting of 5 layers of plastic with straight rigid ribs. Typical thickness – 20, 25, 32 mm. Specific – from 3.0 kg / m2. The thickness of the internal jumpers – 0.5-0.7 mm.
  • 5x (k5c) – 5-layer panel with perpendicular and diagonal internal partitions. Standard sheet has a thickness of 25 or 32 mm and the specific weight of -3.5-3.6 kg / m2. The thickness of the main jumpers – 0.33-0.51 mm, inclined – 0.05 mm.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Along with typical brands according to GOST, manufacturers often offer their own developments that may have a non-standard cell structure or special characteristics. For example, panels are offered higher impact resistance, but at the same time lighter by weight than standard options. In addition to premium grades, there is, on the contrary, options like Light – with reduced rigid rib thickness. They cost cheaper, but their stability resistance is lower than that of typical sheets. That is, the brands of different manufacturers, even with the same thickness, may vary by strength and operational properties.

Therefore, when buying, it must be taken into account, specifying the manufacturer not only the thickness, but all the characteristics of a particular sheet (density, the thickness of the rigidity, the type of cells and the other), its purpose and permissible loads.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Dimensions of monolithic material

Monolithic (or cast) polycarbonate is available in the form of rectangular plastic sheets. Unlike cellular, they have a completely homogeneous structure, without voids inside. Therefore, the density indicators of the monolithic panels are significantly higher, respectively, above the indicators of strength, the material is able to withstand essential mechanical and weight loads (resistance to weight loads – up to 300 kg per square. m, impact resistance – 900 to 1100 kJ / kV. m). This panel is not broken by the hammer, and the reinforced options from 11 mm thickness are kept even a bullet hit. At the same time, this plastic is more flexible and transparent than structural. The only thing he is inferior to cellular is insulating properties.

Sheet monolithic polycarbonate is manufactured according to GOST 10667-90 and TU 6-19-113-87. Manufacturers offer sheets of two types.

  • Flat – with smooth, smooth surface.
  • Profiled – has a corrugated surface. The presence of additional rigidity (corrugations) makes the material more durable than flat sheet. The profile shape can be a wavy or trapezoidal with a profile height (or waves) in the range of 14-50 mm, a length of corrugations (or waves) from 25 to 94 mm.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

The width and length of sheets and flat, and profiled monolithic polycarbonate in most manufacturers comply with the general standard:

  • width – 2050 mm;
  • Length – 3050 mm.

But also for sale material with the following overall dimensions:

  • 1050х2000 mm;
  • 1260 × 2000 mm;
  • 1260 × 2500 mm;
  • 1260 × 6000 mm.

The standard thickness of the monolithic polycarbonate sheets according to GOST is in the range from 2 mm to 12 mm (main dimensions – 2, 3, 4, 5, 6, 8, 10 and 12 mm), but many manufacturers offer a wider ruler – from 0.75 up to 40 mm.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Since the structure of all sheets of monolithic plastic is the same, without voids, it is the size of the cross section (that is, the thickness) is the main factor affecting the strength (whereas a cellular material strongly depends on the internal structure).

The pattern here is standard: proportional to the thickness increases the density of the panel, respectively, the strength, resistance to the deflection, pressure, is growing, resistance. However, it is necessary to take into account that, together with these indicators, weight increases (for example, if 1 kV. M 2-millimeter panel weighs 2.4 kg, then 10 mm – 12.7 kg). Therefore, powerful panels create a large load on the design (foundation, walls and other), which requires the installation of a reinforced frame.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

Bending radius with thickness

Polycarbonate – the only roofing material that with excellent strength indicators can easily be molded and bent in cold condition, taking an arcuate form. To create beautiful radius structures (arches, domes), you will not have to collect the surface from a variety of smooth fragments – you can bend the polycarbonate panels themselves. For this, special tools or conditions are required – the material can be molded with hands.

But, of course, even with high elasticity of the material, any panel can be bent only to a certain limit. Each brand of polycarbonate has its own flexibility. It characterizes a special indicator – bending radius. It depends on the density and thickness of the material. To calculate the bend radius of the sheets of standard density, you can use simple formulas.

  • For monolithic polycarbonate: R = T x 150, where T is the thickness of the sheet.
  • For cellular sheet: R = T x 175.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

So, substituting the thickness of the sheet thickness in 10 mm in the formula, it is easy to determine that the bending radius of the monolithic sheet of this thickness is 1500 mm, structural – 1750 mm. And taking the thickness of 6 mm, we get 900 and 1050 mm values. For convenience, you can not count every time yourself, but to use already ready-made reference tables. For brands with non-standard density, the bending radius may differ slightly, so before buying it is necessary to specify this moment at the manufacturer.

But for all types of material there is a clear pattern: the thinner the sheet, the better it bends. Some types of sheets thick up to 10 mm are so flexible that they can even be twisted into a roll, which greatly facilitates transportation.

But it is important to remember that in a twisted form, polycarbonate can be held a short time, with long-term storage, it must be in the polished sheet and in a horizontal position.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

What size is better to choose?

Polycarbonate is chosen based on what tasks and in what conditions it is planned to operate the material. For example, material for the skin must be easy and possess good heat insulating properties, for the roof – very strong to withstand snow loads. For objects with a curved surface, it is necessary to select plastic with the desired flexibility. The thickness of the material is chosen depending on how the weight load is (especially it is important for the roof), as well as whether the shaft step is (the material is required to put on the frame). The more alleged weight load, the thicker should be a sheet. At the same time, if you make a cage more frequent, then the thickness of the sheet can be taken a little less.

For example, for the conditions of the middle strip for a small canopy, the optimal choice, taking into account the snow loads, is a monolithic polycarbonate sheet with a thickness of 8 mm with a step of the crate in 1 m. But if you reduce the shaft step up to 0.7 m, then you can use 6 mm panels. To calculate the parameters of the required crate, depending on the thickness of the sheet, you can learn from the corresponding tables. And in order to correctly determine the snow load for your region, it is best to take advantage of SNiP 2.01.07-85.

In general, the calculation of the design, especially the non-standard form can be quite complex. Sometimes it is better to trust professionals, or take advantage of construction programs. It will insure errors and unjustified consumption of material.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

In general, recommendations for the selection of polycarbonate panel thickness are given.

  • 2-4 mm – It should be chosen for lightweight structures that do not experience the weight load: advertising and decorative designs, lightweight greenhouse models.
  • 6-8 mm – Medium thickness panels, are quite universal, used for designs experiencing moderate weight loads: greenhouses, canopies, arbors, visors. You can use for a roof of a small area in the regions with a small snow load.
  • 10 -12 mm – It is well suited for vertical glazing, creating fences and fences, the construction of soundproof barriers on the tracks, showcases, canopies and roofs, transparent inserts for roofing in regions with temperate snow load.
  • 14-25 mm – They have very good strength, considered “anti-vandal” and are used to create a translucent roofing of a large area, as well as solid glazing offices, greenhouses, winter gardens.
  • From 32 mm – used for roofing in regions with high snow load.

Sizes of polycarbonate sheets

Sizes of polycarbonate sheets

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