Cordless Cellular Shades TDBU Honeycomb Blackout - Easy No Drill

In this review the LazBlinds cordless cellular shades stand out as a practical choice for renters and homeowners who need a true blackout solution without altering their window frames. The product is designed for inside mount only installation and uses a patented No Tools-No Drill system, so the biggest reason to buy is the combination of genuine light blocking and tool-free fitting that installs in under a minute for compatible frames.

Key Features

• No Tools-No Drill system: Allows installation without drilling or screws, so tenants can fit shades quickly without damaging the window frame.
• Top down bottom up (TDBU): The mechanical stopper gives flexible light control by allowing the middle rail to remain in place while adjusting top or bottom sections.
• Cordless operation: Removes dangling cords for a cleaner look and a safer environment for children and pets.
• Real blackout cells: A silver-plated inner layer blocks sunlight and UV, producing a dark room useful for daytime sleeping or media rooms.
• Thermal insulation: The non-sagging honeycomb structure reduces heat transfer and noise, helping maintain room temperature and quiet.
• Adjustable fit: The spring rod extends up to 1 in to fit window widths from about 45.7 to 46.6 in for an actual shade width of 45 5/8 in.

Who It's For

This shade is ideal for renters, landlords, and homeowners with shallow inside-mount frames who want a blackout solution that requires no drilling and installs quickly. It suits bedrooms, nurseries, and rooms where darkening and thermal insulation are priorities and where a tidy, cord-free appearance matters.

It is not suitable for windows that need an outside mount or frames with less than 1.125 in (1 1/5 in) depth, nor for widths outside the 45.7 to 46.6 in fitting range; buyers needing custom or larger outside-mounted treatments should look elsewhere.

Pros & Cons

Pros

• Easy installation with the patented No Tools-No Drill hardware makes fitting fast and damage-free.
• Effective blackout performance from the silver-plated cell layer creates a dark room when closed.
• Cordless design improves safety and appearance while allowing smooth top-down bottom-up operation.
• Insulating honeycomb cells provide thermal and sound reduction benefits beyond simple light control.

Cons

• Inside mount only and requires a minimum frame depth of 1 1/5 in, limiting where it can be used.
• Fit range is narrow, so accurate measuring is essential to ensure the spring rod can compensate.

Specifications

Brand	LazBlinds
Product type	Cordless cellular honeycomb shade (TDBU)
Installed size	45 5/8 in W x 64 in H (actual blind size)
Fitting window width	Fits approx 45.7 to 46.6 in with spring rod
Mount type	Inside mount only (min 1 1/5 in frame depth)
Light control	Blackout with silver-plated inner cell
Operation	Cordless top down bottom up with patented stopper

Our Verdict

The LazBlinds cordless cellular shade is a smart, budget-friendly option for anyone who needs reliable blackout performance and insulation without drilling into frames. For compatible inside mounts it delivers quick install, a clean cordless look, and genuine room darkening, making it good value for bedrooms and nurseries where light control and safety matter.

Frequently Asked Questions

Can this shade be installed without drilling?
Yes - the LazBlinds No Tools-No Drill system installs without screws or brackets, holding securely with the supplied spring rod hardware.

Will it fit my window?
The shade is designed for inside mount and the spring rod allows a fit for window widths around 45.7 to 46.6 in; ensure your frame depth is at least 1 1/5 in.

Does it fully block daylight?
Yes - the silver-plated inner cell provides true blackout performance for darkening rooms when fully closed.