100% Blackout Patio Sliding Glass Door Curtains 84 in Length - Heavy

In this review the FMFUNCTEX 100% blue blackout patio sliding glass door curtain panel is judged on light blocking, insulation and build quality; it is best for anyone needing complete darkness and improved thermal performance for large sliding doors or French doors. The standout reason to buy is simple: these are full blackout, triple-weave panels sized at a generous 100 in wide by 84 in long that reliably block exterior light while adding weight and opacity that customers say improves heat retention and room darkening.

Key Features

• Full blackout coverage: The panel blocks 100% of exterior light, making it suitable for bedrooms, nurseries or media rooms where darkness is required.
• Extra wide single panel: One panel measures 100 in wide x 84 in long, offering full coverage for wide sliding glass doors without needing multiple panels.
• Triple-weave thermal fabric: The double layer, triple-weave construction provides thermal insulation that helps retain heat in winter and reduce heat transfer in summer.
• Noise reduction: The heavier, multi-layer fabric dampens outside noise more effectively than a single-layer curtain.
• Safe and soft material: The fabric is silky to the touch with no chemical smell, making it suitable for nursery or kids rooms.
• Easy care: Machine washable in cold water and tumble-dry low, with creases removed by light ironing or steaming.

Who It's For

The panel is ideal for homeowners with wide sliding glass doors, renters who want a non-permanent way to darken large openings, and anyone seeking improved energy efficiency and privacy. Photographers, shift workers, parents of young children, and home theater owners will appreciate the full blackout performance and the weighty fabric that blocks glare and light leaks.

It is less suitable for buyers who want light-filtering sheers or very decorative, delicate drapery since the emphasis here is on functionality and thermal performance rather than translucence or fine ornamental detail. Also, if you need a precise custom length beyond the listed 84 in, consider tailored options elsewhere.

Pros & Cons

Pros

• Provides complete room darkening, reliably blocking exterior light.
• Thick, triple-weave fabric adds thermal insulation and helps retain heat.
• Extra wide 100 in panel simplifies coverage of large sliding glass doors.
• Machine washable and soft to the touch, with no chemical odor reported by customers.

Cons

• Only available as a single 100 in x 84 in panel per package, so coordinating multiple panels or matching decorative layers requires separate purchases.
• Heavy, thick fabric may feel bulky for those seeking lightweight or sheer window treatments.

Specifications

Our Verdict

The FMFUNCTEX 100% blackout sliding glass door curtain panel is a pragmatic choice for anyone needing full darkness and improved thermal performance at a competitive value. Its extra wide 100 in width and thick triple-weave construction make it especially useful for large patio or French doors where light control and insulation matter most.

Frequently Asked Questions

Will this panel fit a standard sliding glass door?
Yes, the 100 in width is designed to cover wide sliding doors; measure your door opening to ensure adequate overlap.

Can I machine wash the curtain?
Yes, wash cold with mild detergent and tumble-dry on low; light ironing or steaming removes packaging creases.

Does it reduce outside noise?
Customers report noticeable noise reduction thanks to the heavy, multi-layer fabric, though it is not a full soundproofing solution.