Cordless Cellular Shades TDBU Blackout 23 in x 64 in - No Drill

In this review the LazBlinds cordless cellular shade stands out as a practical blackout option for renters and homeowners who want a fast, clean installation without tools. The single biggest reason to buy is the patented No Tools-No Drill system that lets the shade mount inside the window frame in under a minute while still delivering true room darkening thanks to a silver-plated blackout cell. It is best for standard inside-mount windows where a deep, cordless, top-down bottom-up blind is needed for light control and thermal insulation.

Key Features

• No Tools-No Drill system: Installs without screws or brackets so renters can fit the shade without damaging the frame and remove it easily when needed.
• Top down bottom up function: Allows flexible light control by lowering from the top or raising from the bottom while maintaining privacy in the middle of the window.
• Cordless design: Provides a tidy, child- and pet-safe window covering with smooth manual operation and no dangling cords.
• Real blackout cells: A silver-plated lining inside the honeycomb cells blocks sunlight and UV to create a darkened room for daytime sleep.
• Thermal insulation: The non-sagging cellular structure reduces heat transfer and cuts outside noise for a quieter, more comfortable room.
• Precise inside-mount fit: The shade is sized to allow a 3/8 in deduction for inside mounts and the spring rod expands to fit window widths from 22.7 in to 23.6 in.

Who It's For

The shade is ideal for renters, landlords and buyers who need a blackout solution that installs quickly without tools or drilling and will not damage window frames. It also works well for bedrooms or nurseries where blackout and cordless safety are priorities.

Those with windows needing outside mount, shallower than the required 1 1/5 in frame depth, or non-standard widths outside the 22.7 in to 23.6 in fit range should look elsewhere or consider a custom option. Also, if motorized or automated control is required, this manual cordless model will not meet that need.

Pros & Cons

Pros

• Fast, tool-free inside mount that preserves window frames and suits rental units.
• Effective blackout performance from the silver-plated cells for daytime sleeping.
• Cordless, child-safe design with smooth top-down bottom-up operation.
• Good thermal and noise insulation thanks to the honeycomb cell structure.

Cons

• Inside mount only and requires at least 1 1/5 in frame depth, limiting placement options.
• Fixed manual operation with no motor or remote control option.

Specifications

Our Verdict

The LazBlinds cordless TDBU cellular shade is a strong value for anyone who needs a quick, non-destructive inside-mount blackout solution. Its no-drill installation, effective light blocking and cordless safety make it especially attractive for bedrooms, nurseries and rental homes, though it does require sufficient frame depth and only fits the specified inside width range.

Frequently Asked Questions

Can this shade be installed without drilling?
Yes, the patented No Tools-No Drill spring rod system installs the shade inside the frame without screws or brackets.

Will it fully darken a room?
The silver-plated lining provides real blackout performance, significantly reducing daylight and UV when properly fitted and sealed inside the frame.

What window sizes does it fit?
The actual blind measures 22 5/8 in W x 64 in H and the spring rod allows a fit for window widths from 22.7 in to 23.6 in; a 3/8 in deduction is applied for inside mounts.