90% Shade Cloth for Garden 12 x 20 ft - Heavy Mesh Sunblock for Patio

In this review the 90% Shade Cloth for Garden 12 x 20 ft is evaluated as a budget-friendly sunblock tarp aimed at gardeners, patio owners and small livestock keepers who need a breathable, strong-looking cover. The single biggest reason to buy is its high sun blockage combined with airflow: the high density polyethylene weave claims to stop most sunlight while still allowing heat and moisture to pass, making it useful where plants or animals need shade without trapping humidity.

Key Features

• 90% Sunblock: The fabric blocks most direct sunlight to create a noticeably cooler, shaded area for plants or seating.
• Breathable Material: High density polyethylene construction allows air and water to pass through so plants stay ventilated and rain does not pool.
• Lock-stitch Knitting: Reinforced lock-stitch edges reduce unraveling and give the sheet extra edge strength for outdoor mounting.
• Grommeted Edges: Metal grommets placed every 40 in along reinforced sides make it straightforward to tie or hang the cloth.
• Multi-use Function: Sized for garden beds, greenhouses, patios, pergolas, chicken coops and pool covers where shade and airflow are needed.
• Easy to Clean: The mesh surface rinses clean with a garden hose for low-maintenance outdoor use.

Who It's For

This shade cloth is best for home gardeners, patio owners and hobby livestock keepers who need a cost-effective way to reduce sun exposure while keeping air moving. It suits small greenhouses, hoop houses, balcony shelters and temporary covers over pools or play areas.

Customers seeking a long-term, heavy-duty architectural shade sail or marine-grade tarp should look elsewhere, since some users report mixed impressions of material strength and longer term durability concerns with grommets under heavy load.

Pros & Cons

Pros

• Blocks up to 90% of sunlight while remaining breathable for plants.
• Lightweight high density polyethylene is easy to handle and install.
• Reinforced corners and grommets every 40 in help with secure attachment.
• Versatile for many outdoor uses from garden beds to chicken coops.

Cons

• Some buyers report mixed material strength and occasional tearing or grommet failure under heavy stress.
• Not marketed as a permanent structural cover, so it may need replacement sooner in very exposed installations.

Specifications

Our Verdict

The 90% Shade Cloth 12 x 20 ft is a practical, value-oriented choice for gardeners and homeowners who need effective sun blocking with good airflow. It delivers strong sun protection, easy installation with grommets and low maintenance, but buyers should be realistic about durability in high-wind or heavy-load situations. For temporary and seasonal shading needs it represents good value.

Frequently Asked Questions

Is this fabric breathable?
Yes, the high density polyethylene mesh allows air and water to pass through to reduce heat buildup and prevent pooling.

How is it attached?
There are reinforced edges with grommets spaced about every 40 in so you can tie or hook the cloth to frames and posts.

Will it protect plants from sun damage?
The 90% block rating significantly cuts direct sunlight and helps cool shaded plants while still allowing airflow, making it suitable for heat-sensitive plants.