The first question when buying polycarbonate sheets is: multiwall, solid or embossed? All three are made from the same material, but each is designed for a different job. Here is the difference in plain terms.
1. Multiwall sheets
A multiwall sheet has two or more walls separated by air channels. Those channels do two important things: they insulate against heat, keeping the space below cooler, and they diffuse light, so there is no harsh glare.
- Very lightweight, so the supporting steel structure can be lighter and cheaper.
- The lowest cost per square metre.
- Best for: canopies, carports, greenhouses, factory roofs and stadiums.
2. Solid sheets
A single solid sheet with no channels, the closest material to glass with up to 95% light transmission — but much lighter and virtually unbreakable.
- High clarity and clear vision.
- Outstanding impact resistance, so it is used as safety glazing.
- Cold-bendable, suitable for domes and curved roofs.
- Best for: windows and façades, safety barriers, signage, machine guards.
3. Embossed (crystal) sheets
A solid sheet with a textured, crystal-like surface. The texture breaks up the view for privacy and diffuses light beautifully.
- A premium decorative look.
- Hides scratches and dust better than smooth solid sheets.
- Best for: façade cladding, partitions, doors, shower enclosures, decorative canopies.
Quick comparison
| Multiwall | Solid | Embossed | |
|---|---|---|---|
| Thermal insulation | Excellent | Moderate | Moderate |
| Clarity | Medium (diffused light) | Very high | Diffused light with privacy |
| Weight | Lightest | Heavier | Heavier |
| Impact resistance | Good | Excellent | Excellent |
| Cost | Lowest | Higher | Medium |
So which should you choose?
For a roof or large canopy that should stay cool, choose multiwall. If you need glass-like visibility, choose solid. If decorative looks and privacy matter most, choose embossed.
