Check the surface, the edge and the weight. A uPVC door usually has a smooth, flat panel about 28 mm thick that sounds hollow when tapped. A composite door has a moulded, wood-grain glass-reinforced skin over a solid core, is closer to 44 mm thick and feels noticeably heavier.
What are the quick checks?
| Check | uPVC door | Composite door |
|---|---|---|
| Surface | Smooth, shallow grain | Deep, moulded timber-like grain |
| Thickness | About 28 mm | About 44 mm |
| Tap test | Hollow sound | Dense, solid sound |
| Weight | Lighter | Heavier |
Weight is the easiest test: composite doors typically weigh roughly 35 to 45 kg, against about 25 to 30 kg for uPVC.
Does the frame tell me which I have?
Not reliably. Composite doors are often fitted in uPVC frames, so a plastic frame does not mean a uPVC door.
Why does it matter?
Replacement panels, cylinders and repair methods differ, and composite doors are typically stronger. Your installation paperwork or the label on the door edge will usually name the product. If you are weighing up a change, see our uPVC doors.
Thinking about a new door? We supply and fit doors across Wolverhampton and the surrounding area, and you deal directly with us, the owners. Call 01902 633355, message us on WhatsApp, or request a quote.