100% Blackout 340 GSM Curtains 52x90in 2 Panels - Total Darkening

In this review the 100% Blackout 340 GSM Curtains are judged on light blocking, build weight and thermal performance. These 2-panel sets measure 52 by 90 in each and deliver complete room darkening with a heavy 340 GSM fabric that feels substantial. The single biggest reason to buy is the true 100% blackout and thermal insulation that creates a dark, quiet bedroom or media space; the review focuses on how they perform in daily use and whether the grommet top and fabric quality live up to that claim.

Key Features

• Complete blackout: The dense 340 GSM fabric blocks sunlight fully, producing a genuinely dark room even during bright daytime hours.
• Thermal insulation: The heavy weave helps stabilize room temperature by keeping heat out in summer and retaining warmth in winter.
• Two-panel set: Sold as two panels at 52 by 90 in each, the pair covers a total of 104 by 90 in for standard windows and sliding doors.
• Grommet top design: Eight copper grommets with a 1.16 in inner diameter make the panels easy to hang on standard curtain rods and add a vintage decorative touch.
• Easy care: The curtains are machine washable in cold water and may be tumble-dried low, which makes maintenance straightforward for regular use.
• Privacy and studio use: Customers report the blackout is effective enough for privacy and works well with studio LED or strobe lighting.

Who It's For

These curtains are best for sleepers who need complete darkness, homeowners wanting to cut heating or cooling costs, and content creators or photographers who need reliable light control. The heavy 340 GSM fabric and genuine 100% shading coefficient make them particularly suitable for bedrooms, media rooms and studio setups.

They may not be ideal for those who prefer very lightweight sheers or want multiple decorative layers, since the panels emphasize function and weight over translucency or complex styling. If you need a rod-pocket or completely different width and length options, check other styles; this review covers the grommet 52x90 in pair specifically.

Pros & Cons

Pros

• Reliable 100% blackout performance produces a truly dark room for sleep or media use.
• Heavy 340 GSM fabric provides a luxe feel and measurable thermal benefits for energy savings.
• Well made grommets and substantial width per panel mean fewer seams and tidy drape lines.
• Machine washable care makes these practical for everyday households.

Cons

• The weight and thickness limit light diffusion options and can feel bulky on lighter rods.
• Only one hanging style (grommet) is covered in this set, so buyers wanting rod-pocket or tie-top must choose other variants.

Specifications

Brand	Rutterllow
Set contents	2 panels, each 52 x 90 in (total 104 x 90 in)
Fabric weight	340 GSM
Blackout level	100% light blocking
Top style	Grommet with 8 copper grommets, 1.16 in inner diameter
Care	Machine wash cold, tumble dry low, warm iron as needed; do not bleach

Our Verdict

These 100% Blackout 340 GSM curtains are a practical purchase for anyone seeking uncompromising darkness and thermal benefits at an affordable price. The heavy fabric, true blackout and vintage grommet finish deliver dependable performance for bedrooms, media spaces and studios, making them good value for households prioritizing sleep quality and energy savings.

Frequently Asked Questions

Do these curtains block all sunlight?
Yes, the product is designed to provide 100% light blocking for a fully darkened room when properly installed.

What size does the set cover?
Each panel is 52 x 90 in, so the two-panel set covers a combined width of 104 x 90 in.

How should I clean these curtains?
Machine wash cold, tumble dry low and warm iron as needed; do not bleach for best care.