Cordless Cellular Shades TDBU Blackout 34in x 64in - No Drill Install

In this review of the LazBlinds cordless cellular shades, the bottom line is simple: these inside-mount honeycomb blinds are for anyone who needs true blackout performance with an easy, noninvasive installation. The standout reason to buy is the patented No Tools-No Drill system that installs in seconds, making these an excellent choice for renters, parents, or homeowners who want a clean, cordless look and reliable blackout light blocking.

Key Features

• Inside mount only: The shade is sized for inside window frames and ships with a standard 3/8 in deduction so it fits neatly without trimming.
• No drill installation: LazBlinds patented No Tools-No Drill system mounts without screws or brackets, so it can be installed in about 30 seconds and avoids damaging frames.
• Cordless top-down bottom-up: The cord-free design and top-down bottom-up function let the middle rail be positioned for privacy while still allowing light at the top.
• Real blackout cells: A silver-plated layer inside the cells blocks sunlight and UV so the room can be fully darkened for sleeping or media rooms.
• Thermal and acoustic benefits: The non-sagging cell structure insulates against heat and cold and helps reduce outside noise for a quieter room.
• Adjustable fit: The unique spring rod can extend about 1 in so the actual blind (33 5/8 in x 64 in) fits window widths roughly 33.7-34.6 in.

Who It's For

This blind is ideal for renters, landlords or home buyers who need a damage-free mounting option and for families with children or pets who prefer a cordless window covering. It also suits bedrooms or media rooms where true blackout performance and thermal insulation are priorities.

People who need an outside mount, very shallow frames under the minimum depth, or highly custom window treatments should look elsewhere, since these shades are designed specifically for inside mount installation and require a minimum window frame depth of about 1 1/5 in.

Pros & Cons

Pros

• Fast, tool-free installation that avoids drilling into the window frame.
• Effective blackout performance thanks to the silver-plated cell lining.
• Cordless top-down bottom-up operation provides privacy and flexible light control.
• Good insulating cell structure that helps with temperature and noise control.

Cons

• Only suitable for inside mount applications and requires a minimum frame depth.
• Shade width is reduced by a standard deduction, so precise measurement is required before ordering.

Specifications

Our Verdict

These cordless cellular shades are a practical choice for anyone who wants strong light blocking, thermal insulation, and a renter-friendly installation. The No Tools-No Drill system and cord-free top-down bottom-up operation deliver convenience and safety, while the blackout cell lining provides real darkness. For inside-mount windows that meet the depth requirement, this is a good-value solution for bedrooms and spaces that need reliable light control.

Frequently Asked Questions

Can this be installed without drilling?
Yes. The LazBlinds No Tools-No Drill system is designed to install without screws or brackets and typically mounts in under a minute.

Will it fully block sunlight?
Yes. The inside of the cells has a silver-plated layer intended to provide true blackout performance and block UV.

What window sizes does this fit?
The actual blind is 33 5/8 in W x 64 in H and the spring rod allows an approximate fit for window widths from 33.7 in to 34.6 in; a 3/8 in deduction is applied for inside mount fit.