You get two quotes for the same Polycarbonate sheet from two different suppliers and the difference is substantial. This happens more often than people think. Price of Polycarbonate sheets is determined by five factors: the quality of the base material, the type of the sheet (solid, multiwall or corrugated), the thickness and size, the UV protection and the surface finish, and the order size and special requirements. Transporting costs are added to the end. Lower price doesn't mean that the sheet will be cheaper in the long run because it takes into account the lifetime of the sheet. Let's take a closer look at each of the factors above.
Resin constitutes one of the largest costs in any sheet. Therefore, any time there are changes in the cost of resin, changes in quotes will follow. The chemical composition of Polycarbonate involves the use of bisphenol A (BPA). Consequently, any fluctuations in the cost of BPA will reflect in resin as well as in the cost of the final sheet. This year, the market has not remained idle. On the week ending August 30, 2026, the US polycarbonate resin prices increased by 1.36% due to higher BPA prices. Such a tiny increment cannot change the cost overnight; however, it is one of the best reasons to ask for validity duration of a price quote.
As the name suggests, virgin resin refers to an unprocessed material. On the other hand, recycled or reground material comes with lower prices. However, their color, clarity and impact strength varies from lot to lot. In most cases, this is the unseen truth behind low pricing. For roof sheets, canopy sheets and safety related items, use of virgin resin is preferred. In case of interior signage or light duty, other types might do. The easiest way out of the situation is to inquire from the supplier the source of the material.
Also, resin may be available in various grades with different characteristics concerning transparency, impact resistance, and flame retardancy. The price of well-known manufacturers' grades is higher; however, they have much better documentation. You should ask for the technical information on the material as well as testing certificates depending on the market, e.g., ASTM, UL, CE, RoHS certifications or SGS certificates. A company that can provide all these documents easily will most likely be a good partner in the future.
Sheet type changes how much material goes into each square meter, so it is the first thing to settle before comparing prices.
Solid polycarbonate sheet consists of just one layer of material. As compared to the hollow sheet with the same thickness, solid sheets use more resin and cost more money per square meter. However, the high impact resistance and excellent transparency make solid sheets preferable material for canopies, machine guarding, signs and pool shade constructions. One should note that standard solid sheets are rather soft – their surface hardness is only 2B and such materials may be scratched relatively easily. This problem may be solved by using anti-scratch grades of polycarbonate; however, the price will be higher.
Multiwall polycarbonate sheet (also known as twin-wall or sunlight sheet) has a hollow channel between its layers. This type of sheet uses less material, is lighter and provides more insulation, so multiwall sheets are very popular for greenhouse, sunroom and other cover constructions. Number of walls and internal construction affects both the strength of the sheet and its cost. Therefore, two sheets of the same total thickness may differ from each other significantly.
Corrugated sheets have a wavy profile and are most commonly used as roof and wall panels. The corrugated profile should be suitable for your construction and existing panels if any; check this detail while comparing quotations. In windy areas 1.5mm is a common minimal thickness.
Because price is determined by weight, the heavier sheet will be more expensive per square meter. However, it is important to note that thickness does not have to be at the maximum value, as the polycarbonate sheet thickness depends on the distance between supports, loads and resistance required from the material. For areas with hail and heavy snow, the use of thicker sheets is preferable; however, it is important to know whether the sheet was tested against hailstone size and velocity, since there is the ASTM impact test. Thinner sheets are more likely to sag and crack, which means that installing a new roof will be much more expensive than the difference in prices for sheets of two different thicknesses.
The use of standard widths and lengths reduces waste the most. Custom orders might include additional cutting and scraps, and these costs will be reflected in the price. If you do not want to pay for the material that goes to waste, try to make your design match the sheet sizes, if possible. Additionally, you should inquire about the thickness tolerance of the sheets. Sheets that are slightly thinner will help the manufacturer to save materials.
Plastic breaks down under sunlight, leading to yellowing and brittleness. The UV stabilized polycarbonate sheet comes at a slightly higher price, but it is normally a good investment for roofs, canopies, and greenhouses. The UV stabilization may be done within the resin or by applying the UV barrier coating on one or both sides, so you need to inquire on how it is done and on which side the barrier should be applied. Based on average conditions, the design lifetime of 10 years may be expected from the outdoor polycarbonate sheet, but it will depend on climate conditions, UV intensity, and installation.
Privacy or light diffusing properties can be obtained from frosted or embossed films, while lamp boxes require diffusion films for even light distribution. Films with different properties like antistatic, anti-scratch or fire retardant can be found, and in most cases, these films will be classified based on UL 94 standards. With each property comes extra cost for production, and hence, it is important to know all the required properties clearly. A lamp box needs diffusion film.
Production of the sheet includes material acquisition, line preparation and packaging and all these expenses are incurred by the total batch. Switching over to another color or thickness of the sheet requires time and hence smaller special orders will have higher costs per square meter. It is for this reason that wholesale orders for polycarbonate sheets normally get better pricing than a collection of smaller orders. Try and make an order of those sheets which have identical materials, thicknesses and colors and get pricing at two to three levels of quantity.
Special coloring, printing, drilling, engraving and protective films increase the processing. For this reason, there is seldom one set list price and the polycarbonate sheet price of a custom order can be significantly different from a regular stock sheet.
Step 1: Confirm the sheet type and where it will be used, including indoor or outdoor, roof or wall, and the local climate.
Step 2: Write down the size, thickness, color and any finish, such as UV protection or anti-scratch.
Step 3: Add the quantity, delivery port and the date you need the goods, then ask for a sample and the test reports.
The type of trade term influences the pricing. EXW includes the goods up to the factory gate. FOB involves the cost of loading at the port of shipment. CIF involves sea freight and insurance to your destination port. This sheet will be priced lower on EXW than CIF terms, so compare offers for the same trade term. Moreover, inquire about the period of validity of the offer, lead times and payment terms.
Polycarbonate tends to scratch and crack when shipped. Check if there is protective film on the product, edge protection, and solid pallets or crates used. The multiwall sheets should also have their edges sealed to prevent dust and moisture from entering the channels of polycarbonate. A trustworthy polycarbonate sheet supplier will provide details regarding the way the goods are packaged, loading pictures and calculate how much square meters can be packed in a 20 or 40 ft container depending on the thickness. Proper packaging requires an additional fee, but it is better than claims for damaged goods.
All factors mentioned above affect the end result; hence, the cheapest estimate does not mean the cheapest price. In case you need the exact polycarbonate sheet cost for your project, please specify the required size, thickness, color, application, quantity, and delivery date.
GWX Company was founded back in 2011 and manufactures polycarbonate sheets – solid, multiwall and corrugated. We have 10 production lines manufactured in Germany and our yearly production volume is 30,000 tons of polycarbonate sheets. Our factory operates according to ISO 9001:2015 and IATF 16949 quality management system standards. All polycarbonate sheets from GWX Company are accompanied by UL, CE and RoHS certificates and SGS test report. We can also offer customized products, installation accessories and export service.
1. Can I get a sample before placing a bulk order?
Generally, yes. Inquire whether the sample is paid or free and whether shipping is included in the cost. Inspect thickness, transparency and surface quality before you order.
2. How long does a custom order take?
This depends on the shade, thickness, quantity and processing process. Generally speaking, the standard goods arrive faster than the special colors or printed sheets. Inquire about the exact period in the quotation.
3. Should I buy installation accessories with the sheets?
Sometimes, it is reasonable. They should be compatible with the type and thickness of the material.
4. How should I store sheets before installation?
Flat, in a dry, shaded and well-ventilated room. It is preferable not to remove the protective film and stack heavy things on top.
5. Can I mix different sheet types in one container?
Usually, yes, provided that the sheets fit each other by size and volume. Ask your vendor to provide the loading plan first.