Buying Guide

Blackout vs Dimout vs Light Filtering: Fabric Guide

Understanding fabric opacity levels — and matching them to the right room.

By Ajay Arora · Founder, LA KREO 1 Nov 2026 5 min read

Blackout, dimout and light-filtering blind fabrics compared for Delhi NCR homes

The single biggest decision in blind selection is fabric opacity — how much light passes through. Get it wrong and bedrooms stay too bright or living rooms feel like caves. This guide explains the three main categories and where each belongs.

Light Filtering (Sheer)

Sheer fabrics diffuse harsh sunlight into soft, ambient light while maintaining outward views. They provide daytime privacy — people outside cannot see in clearly during daylight hours.

Best for

Living rooms, dining areas, home offices, kitchens where you want natural light.
Light passing

70-90% — bright, soft diffused light.
Privacy

Good during day, poor at night when lights are on inside.

Dimout

Dimout fabrics use tighter weaves or backing layers to reduce light significantly while keeping the room from feeling completely dark. They strike the middle ground between sheer and blackout.

Best for

Bedrooms where total darkness isn't required, media rooms, studies.
Light passing

10-30% — noticeably dimmed but not dark.
Privacy

Good day and night — fabric blocks clear views both ways.

Blackout

Blackout fabrics use dense construction — often with foam or metallized backing — to block virtually all light. With side channels, they achieve near-total darkness.

Best for

Bedrooms, nurseries, shift-worker rooms, home theatres, media rooms.
Light passing

0-5% — near-total darkness with proper installation.
Bonus

Also provides the best heat and UV blocking of any fabric type.

The Hybrid Solution

Can't decide? Double-roller blinds and zebra blinds combine two layers — sheer for daytime, blackout for night — giving you both options in one window treatment.

Room-by-Room Quick Reference

Master Bedroom

Blackout — quality sleep depends on darkness.
Kids Room

Blackout or dimout + cordless for naps and bedtimes.
Living Room

Sheer or sunscreen for views; add dimout layer if needed.
Kitchen

Sheer or dimout — moisture-resistant material matters more than opacity.
Bathroom

Frosted/dimout for privacy — waterproof material essential.
Home Office

Sunscreen for glare control without darkness.

Frequently Asked Questions

Is blackout really 100% dark?

Blackout fabrics block almost all light. For truly zero leakage, request side channels that seal the edges of the blind.

Do blackout blinds make rooms hot?

Quality blackout fabrics reflect heat rather than absorb it. Honeycomb blackout blinds provide the best insulation.

Can I mix fabric types in one home?

Absolutely — and you should. Match opacity to each room's function while coordinating colours across the home.

Written by

Ajay Arora — Founder, LA KREO

Ajay Arora is the founder of LA KREO, a Delhi NCR-based interior products company. With hands-on experience across blinds, flooring and wall solutions, he oversees product selection, fabrication and installation for residential and commercial clients.