Drywall Finish Levels Explained
The correct drywall finish depends on lighting, paint sheen, surface visibility and the final decoration. Higher numbers do not automatically mean every wall needs the highest level.
Typical painted interiors
Level 4 is commonly specified for flat or low-sheen painted surfaces under ordinary lighting, subject to the design and specification.
Critical light and premium surfaces
Level 5 adds a skim treatment intended to reduce visible differences across board and joint areas. It may be considered for strong side-lighting or more demanding finishes.
Quality begins before taping
Framing alignment, board orientation, fastener setting, joint placement and environmental conditions all affect the final surface.

Common questions
Does Level 5 guarantee a perfect wall?
No finish eliminates every effect of extreme lighting or substrate movement. Expectations, lighting and paint should be reviewed together.
What level is needed behind tile?
The required substrate depends on the tile system and wet-area design. Follow the project specification and product requirements.
Can old texture be made smooth?
Often yes, after checking adhesion, damage, coatings and the condition of the existing surface.