ColourTree 4 ft x 21 ft White Shade Cloth with Grommets - 90% Sunblock

In this review of the ColourTree 4 ft x 21 ft White Shade Cloth the bottom line is simple: this is a practical, heavy-duty shade solution for outdoor pet enclosures and small structures, chosen primarily for its sunblock and breathability. The reviewer found it best for dog kennels, chicken coops, greenhouse side shading, and fence privacy where heat reduction and airflow matter. Its woven HDPE fabric blocks up to 90% of sunlight while remaining permeable, and the evenly spaced grommets make it easy to secure with zip ties.

Key Features

• 90% Sunblock: The woven HDPE mesh significantly reduces direct sunlight and UV exposure to keep animals cooler and protect shaded areas.
• Permeable Construction: Breathable fabric lets air and water pass through so the cover reduces temperature without trapping moisture.
• Grommeted Edges: Metal grommets are placed evenly along the edges for fast, secure installation with zip ties or rope.
• Custom Sizes Available: Special sizes can be made on request, useful when a standard 4 ft x 21 ft panel does not match the enclosure.
• Durable Mesh: The HDPE woven fabric feels robust in use and stands up well as a roof or side cover in a variety of outdoor settings.

Who It's For

This shade cloth is aimed at pet owners, backyard poultry keepers, and hobby greenhouse users who need a breathable, durable cover to cut sun and reduce heat. It works best for dog kennels, playpens, fence privacy, and small greenhouse shading where airflow is important and full blackout is not required.

Those who need a fully waterproof tarp, complete blackout, or heavy insulated roofing should look elsewhere, since this product is explicitly non-waterproof and not 100% light blocking. It is ideal when air circulation and UV reduction are the priority.

Pros & Cons

Pros

• Effective heat reduction and privacy while allowing airflow thanks to the permeable HDPE weave.
• Build quality and durability noted by customers who used it as a roof or side cover.
• Evenly spaced grommets make attachment quick and straightforward with common fasteners.
• Custom sizing options mean it can be tailored to unusual enclosures or projects.

Cons

• Not waterproof and not fully blackout, so it will not stop rain or create complete darkness.

Specifications

Product type	Custom size shade cloth
Dimensions	4 ft x 21 ft (standard panel)
Material	Permeable HDPE woven fabric
Sunblock	Blocks up to 90% of sunlight and UV
Water resistance	Non-waterproof (permeable)
Installation	Grommets evenly placed along edges for zip ties
Customization	Special sizes available, made in the US

Our Verdict

The ColourTree 4 ft x 21 ft shade cloth is a solid value for pet owners and small-structure users who want reliable sun protection and airflow rather than waterproofing. Its durable HDPE mesh, useful grommets, and custom size option make it a practical choice for kennels, coops, and fence screens where heat management and privacy matter most.

Frequently Asked Questions

Is this shade cloth waterproof?
No, the fabric is permeable and designed to let water pass through; it is not a waterproof tarp.

Will it block all light for a kennel?
It does not provide full blackout, but blocking up to 90% of sunlight is generally sufficient for dogs and adds privacy while allowing airflow.

Can I get a different size?
Yes, ColourTree offers custom sizes made in the US for applications that require nonstandard dimensions.