Bottom up blackout shades provide flexible light control and privacy by letting you raise the bottom portion of the shade while leaving the top open to daylight, or close both directions for total darkness. This guide highlights five top options ideal for bedrooms, nurseries, living rooms, and home offices. Each picks offers a cordless, top-down bottom-up (TDBU) design, easy installation approaches, and strong insulation features. The list targets buyers seeking secure, child-friendly blinds that minimize light leakage and noise while fitting standard window sizes.
Summary of chosen products
- SUNFREE Top Down Bottom Up Cellular Shades 34″ W x 64″ H, White (Blackout) — 34×64, 1 panel, cordless, blackout.
- SUNFREE Top Down Bottom Up Cellular Shades 35″ W x 64″ H, White (Blackout) — 35×64, cordless, blackout.
- Changshade No Drill Custom Top Down Bottom Up Cellular Shades — No tools required, blackout, honeycomb insulation.
- Changshade Blackout Top Down Bottom Up Cellular Shades 27″ W × 72″ H — 27×72, cordless, full blackout.
- Joydeco No Drill Blackout Cordless Cellular Shades 70″ W x 96″ H — large-width blackout, tension-mounted.
SUNFREE Top Down Bottom Up Cellular Shades 34″ W x 64″ H

Features include a top-down bottom-up design, three opening options, and a cordless mechanism that stops at any position. The hexagonal honeycomb layers provide blackout capability and noise reduction, with heat insulation for seasonal comfort. This shade is best for living rooms or bedrooms where you want daytime light control without drapes, and you prefer a cordless, simple install.
Best for: small to mid-size windows in living rooms or bedrooms where you want easy light management and total blackout at night. Caution: Some users may find manual operation slightly stiffer in very tight window frames.
SUNFREE Top Down Bottom Up Cellular Shades 35″ W x 64″ H

This variant mirrors the 34″ version with identical cordless, TDBU operation, blackout capability, and honeycomb insulation. It’s a solid choice when you need a slightly wider shade for larger windows while preserving light control versatility and quiet operation.
Best for: standard 35″ width windows in bedrooms or home offices needing flexible privacy and daytime light balance. Caution: Availability may vary by color or length; check fit before purchase.
Changshade No Drill Custom Top Down Bottom Up Cellular Shades

No-drill installation and a customizable top-down bottom-up function apply. The silver-plated cell layer blocks light and UV rays, enabling a true blackout environment. Suitable for renters due to tool-free setup and stable, secure fit. The honeycomb design also supports improved insulation and easier cleaning.
Best for: renters or anyone who wants a tool-free installation with strong blackout performance. Caution: No-drill installs may rely on mounting surfaces that support the weight and hold; ensure wall type supports the shade.
Changshade Blackout Top Down Bottom Up Cellular Shades 27″ W × 72″ H

Designed for total privacy and light blocking, this 1.5-inch honeycomb shade offers energy efficiency and noise reduction. Top and bottom operation allows daylight adjustment and privacy control for bathrooms, living rooms, or street-facing windows. A practical choice where a larger window height requires full blackout.
Best for: rooms needing full blackout with extended height windows. Caution: Width is narrower than some very wide frames; confirm fit for extra-wide applications.
Joydeco No Drill Blackout Cordless Cellular Shades

Joydeco offers tension-mounted, cordless installation and dual-direction light control with complete blackout. The shade blocks sunlight by up to 99% and provides UV filtration, while the honeycomb design boosts energy efficiency. This option is suitable for larger windows requiring a no-tool setup that still delivers reliable privacy.
Best for: large windows or rental spaces needing an easy install with strong blackout performance. Caution: Tension-mounted systems may require precise window dimensions for a snug fit to avoid sagging.
Lazblinds No Drill TDBU Cellular Shades 30″ W x 64″ H

Though listed here for context, note LazBlinds features include a no-drill, patent-pending magnetic top rail for smooth TDBU control and a solid 3/8-inch width deduction for proper fit. It is aimed at easy install, light management, and durability in everyday use.
Best for: homes prioritizing an ultra-easy install with magnetic top rail control. Caution: Slight width adjustments are required to fit a 30″ window precisely.
Buying Guide: Bottom Up Blackout Shades
- What window sizes and mounting type are compatible? Look for inside or outside mount guidance and width deductions to ensure a snug fit.
- What is the preferred light and privacy level? Choose shades with true blackout cells and dual-direction control if you need daytime privacy and nighttime darkness.
- Are cords a concern? Cordless, top-down bottom-up options improve child safety and aesthetic cleanliness.
- How important is insulation and noise reduction? Honeycomb designs with reflective layers can help manage temperature and reduce outside noise.
- Is tool-free installation important? No-drill or tension-mounted designs are ideal for renters or frequent movers.
- Durability and maintenance: consider ease of cleaning and the stability of the bottom rail for tall or large windows.
Key comparisons
- Best for renters: No-drill and tension-mounted options, such as Changshade no-drill models and Joydeco tension-mounted shades.
- Best for large windows: Tall, wide shades like Joydeco 70″ x 96″ or Changshade 27″ x 72″ offer ample coverage and easy handling.
- Best for insulation: Shades featuring thicker 1.5-inch honeycomb cells and silver-plated layers provide stronger heat and sound control.
- Best for fast installations: No-tools required models deliver quick setup without wall modifications.
FAQ
- Do bottom up blackout shades block all light? Yes, many models feature blackout honeycomb cells and reflective layers for near-complete darkness.
- Are TDBU shades safe for kids and pets? Cordless designs reduce strangulation risk and create a cleaner look.
- Can these shades be installed in rental spaces? No-drill or tension-mounted options are specifically designed for renters.
- Will these shades reduce noise? Some models include noise-reducing honeycomb structures that soften external sounds.
- Can I customize width or height? Several options offer adjustable widths within a range and tall heights to fit larger windows.
- Are these energy-efficient? Honeycomb cells trap air, aiding temperature regulation and potential energy savings.