Cordless Cellular Shades 39in x 64in TDBU - No Tools No Drill

In this review of the LazBlinds cordless cellular shades, the bottom line is simple: these 39in x 64in top-down bottom-up blackout shades are best for renters or homeowners who want a clean, child-safe window covering that installs in minutes without drilling. The reviewer found the biggest reason to buy is the patented No Tools-No Drill system combined with genuine blackout cells that block light and insulate a room. Installation, fit, and the cordless operation were the features that shaped the overall impression.

Key Features

• No Tools-No Drill installation: The patented spring-rod system installs inside the window frame in under a minute without screws or brackets, ideal for renters who cannot drill.
• Top-down bottom-up operation: The TDBU design lets the reviewer control privacy and light by lowering the top or raising the bottom independently for flexible daylighting.
• Real blackout cells: A silver-plated interior layer blocks sunlight and UV, producing a darkened room for daytime sleep or theatre use.
• Cordless, child-safe design: The lack of cords provides a tidy window appearance and reduces entanglement risk around children and pets.
• Thermal insulation and noise reduction: The honeycomb cell structure insulates against heat and cold and helped the reviewer notice reduced street noise when closed.
• Precise inside-mount sizing: Built to fit inside-mount frames with a standard 3/8in deduction and a spring rod that extends to accommodate 38.7-39.6in widths.

Who It's For

The shades are well suited to renters, landlords, and homeowners who need an inside-mount blackout solution without altering the window with screws or brackets. They are especially good for bedrooms, nurseries, or media rooms where light control and insulation matter and where a cordless, tidy look is preferred.

People who need outside-mount shades, deeper frame installation, or custom millwork finishes should look elsewhere; this model requires a minimum 1 1/5in frame depth and is designed strictly for inside mount use at the stated size and fit range.

Pros & Cons

Pros

• Easy installation with the No Tools-No Drill system; the reviewer and customers reported quick, tool-free setup.
• Effective blackout performance from the silver-plated cells for daytime sleeping and light-sensitive rooms.
• Clean cordless operation and the top-down bottom-up function give flexible light and privacy control.
• Thermal benefits and reduced outside noise thanks to the non-sagging honeycomb structure.

Cons

• Inside-mount only and needs at least 1 1/5in frame depth, so it will not work on shallow sills or some trim profiles.
• Size is manufactured as 38 5/8in x 64in actual blind size, so precise measurement is required to fit the 38.7-39.6in window width range.

Specifications

Brand	LazBlinds
Model type	Cordless Cellular Shades, Top Down Bottom Up
Design	Inside Mount Only, No Tools-No Drill
Rated window fit	38.7 - 39.6in window width
Actual blind size	38 5/8in W x 64in H
Minimum frame depth	1 1/5in
Features	Cordless, blackout silver-plated cells, thermal insulation

Our Verdict

The LazBlinds 39in x 64in cordless cellular shade is a practical, value-minded choice for anyone who needs a no-drill, inside-mount blackout solution that improves privacy and insulation. It delivers the promised easy installation, strong light blockage, and cordless safety, making it a smart buy for bedrooms, nurseries, and rental units where drilling is not an option.

Frequently Asked Questions

Can this be installed without drilling?
Yes, the patented No Tools-No Drill spring-rod system allows inside-mount installation without screws or brackets.

Will it block daylight completely?
Yes, the interior silver-plated layer inside the cells provides true blackout performance for significant light reduction.

What window width range does this fit?
The shade is manufactured at 38 5/8in and the spring rod extends to fit window widths from about 38.7in to 39.6in; confirm your frame depth is at least 1 1/5in.