No, doors and trapdoors act just like empty space. The only substance which reduces “block” light (light cast by torches, etc) but does not entirely stop it is water; light level reduces by 3 rather than the normal 1 for each block of water or ice it passes through.
What Minecraft blocks let light through?
Types of transparent blocks
- Barrier.
- Beacon.
- Frosted Ice.
- Glass.
- Glowstone.
- Ice.
- Leaves.
- Observer.
Are trapdoors opaque?
A trapdoor is a solid, transparent block that can be used as an openable 1x1 barrier.
