Blinds that open from the bottom let you raise the lower rail to admit daylight while keeping the upper part of a window covered. Top-down/bottom-up shades add another option: lower the shade from the top, raise it from the bottom, or adjust both rails. The five picks below include fixed-size cellular shades, a light-filtering option, no-drill models, and custom-size blackout shades. Check your window measurements and installation requirements before choosing.
| Product | Best For |
|---|---|
| SUNFREE 22 x 36-inch Cellular Shade | Small windows and blackout coverage |
| ACHIM 27 x 64-inch Pleated Shade | Light filtering and privacy |
| Shade&Beyond No-Drill Cellular Shade | Renters with a window in its size range |
| LazBlinds Custom Cellular Shade | Custom sizing and no-drill installation |
| SUNFREE 34 x 64-inch Cellular Shade | Larger windows and blackout coverage |
SUNFREE 22 x 36-Inch Cellular Shade

This fixed-size SUNFREE shade is best for a smaller window measuring 22 inches wide by 36 inches high. Its cordless top-down/bottom-up design can be adjusted from either end and stopped at different positions, making it useful when you want to balance daylight and privacy.
The product features describe a honeycomb construction with blackout fabric and an aluminum-foil layer. The listing also says the shade is designed to reduce noise and help insulate against summer heat and winter cold. Choose it if blackout coverage and flexible opening are priorities.
Limitation: The listed size is specific, so it may not fit a window outside those dimensions. Confirm the required mounting measurements before ordering.
ACHIM 27 x 64-Inch Light-Filtering Shade

The ACHIM cordless cellular pleated shade is best for shoppers who want filtered daylight rather than the blackout construction described for the SUNFREE models. It measures 27 by 64 inches and opens from the top or bottom, so you can adjust the covered area to suit your privacy needs.
Its polyester construction and cordless operation make it a straightforward option for a window that matches the listed size. Choose this shade if light filtering is more important than blocking all light.
Limitation: The product is identified as light filtering, not blackout. The supplied feature details do not specify additional installation requirements or insulation performance.
Shade&Beyond No-Drill Cellular Shade

This model is best for renters or others who want a no-drill installation and have a window that fits its specified range. Its spring-rod tension design is intended for inside mounting, and the listing says installation requires no tools. The top-down/bottom-up adjustment allows light to enter from above or below while retaining coverage elsewhere.
The listed actual shade size is 21 5/8 inches wide by 48 inches high. The spring rod can extend to fit window widths between 21.7 and 22.6 inches. Choose it if those dimensions match your window and avoiding drilled holes matters.
Limitation: It is for inside mount only and requires at least 1 1/5 inches of frame depth. Measure carefully; it is not a universal fit.
LazBlinds Custom No-Drill Cellular Shade

LazBlinds is best for buyers who need custom sizing and want to avoid drilling. The listing says the shade is made to the customer’s provided window measurements, and instructs buyers to submit the window size without calculating a deduction. It also describes a cordless top-down/bottom-up design with an adjustable middle rail.
The shade is described as blackout, with honeycomb construction, thermal insulation, and noise reduction. Its no-tools, no-drill system is presented as suitable for renters and other buyers seeking a damage-free installation. Choose it when a standard listed size is not a good match.
Limitation: The seller notes that custom-made dimensions have tolerances: width may vary by up to 1/8 inch in either direction, and height by up to 2 inches. The listing says custom products cannot be resold after a return, so verify measurements before ordering.
SUNFREE 34 x 64-Inch Blackout Shade

This SUNFREE shade is best for a larger window measuring 34 by 64 inches when blackout coverage is a priority. Like the smaller SUNFREE model, it has cordless top-down/bottom-up operation and can be adjusted from either end to control the opening.
The listed honeycomb design uses blackout fabric and an aluminum-foil layer. Product details also describe noise reduction, UV blocking, and insulation against heat and cold. Choose this size if you want those stated features and your window measurements align.
Limitation: The fixed dimensions may not suit other windows. Confirm the fit and mounting needs before purchase.
Buying Guide: How To Choose Bottom-Opening Blinds
Do you want light from above or below?
Top-down/bottom-up blinds offer more flexibility than a shade that only rises from the bottom. Lower the top rail to bring light through the upper part of the window, or raise the bottom rail to open the lower part. If you want both choices, confirm that the product explicitly describes both directions of operation.
Should you choose blackout or light filtering?
Choose blackout construction when blocking light is the main goal. The two SUNFREE models and the LazBlinds listing describe blackout features. The ACHIM shade is specifically light filtering, so it is better suited to admitting softened daylight while providing privacy. Feature descriptions do not establish that any shade blocks every bit of light around its edges.
How should you check the fit?
Compare the product’s stated dimensions with your window and installation type. Pay close attention to whether measurements describe the shade itself or the window range it can fit. The Shade&Beyond model specifies inside mounting, minimum frame depth, and a narrow width range. LazBlinds asks customers to submit window measurements directly and lists manufacturing tolerances.
Is no-drill installation important?
Shade&Beyond and LazBlinds describe no-drill installation systems. These may suit renters or buyers avoiding holes, but the requirements differ: Shade&Beyond specifies an inside mount and frame depth, while LazBlinds is custom made to submitted measurements. Review each product’s fit instructions before choosing.
Frequently Asked Questions
What are blinds that open from the bottom called?
They are commonly described as bottom-up shades. Top-down/bottom-up shades can also lower from the top, giving you two ways to position the opening.
Can top-down/bottom-up blinds provide privacy and daylight?
Yes. You can position the rails to admit light through part of the window while keeping another section covered. The exact light control depends on the shade fabric and fit.
Are cellular shades blackout?
Some are described as blackout and others are light filtering. Check the specific product details; cellular construction alone does not establish that a shade is blackout.
Can I install these shades without drilling?
The Shade&Beyond and LazBlinds listings describe no-drill installation. Check mounting requirements and window measurements, since the systems and fit conditions differ.
Should I order the shade size or window size?
Follow the product’s measurement instructions. Some listings provide a fixed shade size, while the LazBlinds listing asks buyers to submit the window size directly. Do not apply your own deduction unless the product instructions require it.