100% Blackout 340 GSM Curtains 2 Panels - Full Shade 80in

In this review of the Rutterllow 100% Blackout 340 GSM Curtains two-panel set, the bottom line is simple: these drapes are aimed at anyone who needs complete darkness and improved thermal performance in a bedroom or media space. The reviewer found the heavy 340 GSM fabric and true blackout construction deliver on the claim of full light blocking, creating a reliably dark environment during daytime naps or bright mornings, while also helping to stabilize room temperature.

Key Features

• True 100% blackout: The fabric and lining block sunlight completely, so rooms stay dark even during bright daylight hours.
• Thick 340 GSM material: The heavy weight gives an insulated feel that helps reduce heat transfer and can save on cooling and heating costs.
• Sold as two panels: Each panel measures 52in wide by 80in long, providing a combined coverage of 104in x 80in for a standard window or double window setup.
• Grommet top design: Eight copper grommets with a 1.6in inner diameter slide easily on standard rods and add an understated, classic look.
• Easy maintenance: Machine washable in cold water with tumble dry low, so care is straightforward without special cleaning.

Who It's For

This set is best for light-sensitive sleepers, home theater rooms, or photographers and content creators who need a darkened space; the reviewer noted the material even performs well against studio LED or strobe lighting. The thermal insulation and heavy drape also make it a good pick for those wanting to improve energy efficiency and reduce outside noise slightly.

Those who want a very lightweight, sheer curtain or a guaranteed exact shade of gray should look elsewhere, since some buyers report the dark gray can read darker than expected. If rod diameter is unusually large, confirm it fits the 1.6in grommet inner diameter before buying.

Pros & Cons

Pros

• Reliable full light blocking for daytime sleep and media rooms.
• Thick, well-made fabric that provides thermal benefits and a premium feel.
• Simple grommet installation and classic look that fits most decor.
• Machine washable for low-effort care and maintenance.

Cons

• Color can be perceived differently by some buyers; the dark gray may appear almost charcoal in some lights.
• The heavy weight may feel bulky on very lightweight curtain rods or in smaller windows.

Specifications

Our Verdict

The Rutterllow 100% Blackout 340 GSM Curtains are a solid option for anyone who needs complete darkness and improved thermal insulation at a reasonable value. They suit bedrooms, home theaters, and workspaces where light control matters; just verify the grommet fit and expect a heavy, substantial drape that may appear darker than sample photos.

Frequently Asked Questions

Do these curtains completely block sunlight?
Yes, the reviewer confirms the construction provides full 100% blackout performance for daytime darkness.

What are the panel dimensions and total coverage?
Each panel is 52in x 80in, giving a combined coverage of 104in x 80in when both panels are used.

How should I clean them?
Machine wash cold, tumble dry low, and warm iron as needed; do not bleach.