PP Weed Mat Buyer’s Guide 2026: GSM, Specs, Prices & Export from India

A PP weed mat is a woven polypropylene ground cover that blocks sunlight so weeds cannot grow, while water, air and fertiliser still reach the roots. It is one of the simplest products we export, and also one of the most misunderstood. Earlier this month an Italian horticultural cooperative sent us an enquiry for 120 and 150 GSM weed control ground cover, 4.2 to 5.25 metres wide, with a 15 x 15 cm grid. Their follow-up questions were sharp: what colour are the grid lines, are the rolls on cardboard or PVC cores, are they rolled flat or folded? Those questions are exactly what separates a good weed mat order from a container of regret.

So I have put everything we have learned into one guide. It covers how to pick the right GSM and width, what the test numbers on a data sheet really mean, what weed mat costs, how many rolls fit in a container, and what to check when importing from India. If you buy weed control mats for a farm, a nursery, a distribution business or a landscaping company, this should save you a few emails.

What Is a PP Weed Mat?

A PP weed mat (also sold as weed control ground cover, weed control mat, landscape fabric or weed barrier) is made by slitting polypropylene film into flat tapes and weaving them on wide looms into a tight fabric. UV stabiliser is added to the polymer so the fabric survives years of sun. The weave is dense enough to stop light, which is what weeds need to germinate, yet open enough to let rain and drip irrigation drain straight through.

There are three families of weed suppression material, and buyers often mix them up:

Type	How it is made	Best for	Weak point
Woven PP weed mat	Slit PP tapes woven into fabric, 70 to 150 GSM	Farms, orchards, nurseries, greenhouses, multi-season use	Cut edges can fray if not hot-cut
Non-woven PP weed mat	Spunbond PP filaments bonded by heat, 50 to 150 GSM	Decorative beds under bark or gravel, separation layers	Ages faster if left uncovered in strong sun
Plastic mulch film	Solid PE film, 20 to 50 microns	One-season vegetable beds	Not permeable; water runs off; usually single-use

For professional growers, woven PP is the workhorse. It is permeable, strong, reusable for several seasons and the cheapest per square metre per year of service. That is why most of this guide focuses on it.

Choosing the Right GSM

GSM (grams per square metre) is the fabric’s weight, and it drives almost everything: strength, puncture resistance, lifespan and price. Heavier is not always better. I regularly talk buyers down from 150 GSM when the fabric will only ever see footsteps, because they would be paying 25% more in fabric and freight for strength they will never use.

Grade	Typical use	Our take
70 GSM	Home gardens, borders under mulch, retail packs	Good value for covered beds; not for open fields
90 GSM	Vegetable and soft fruit rows, landscaping	The common European standard
100 GSM	Farms, orchards, nurseries, greenhouses	The all-rounder if you are unsure
110 GSM	Greenhouse floors, polytunnels, nursery aisles	Firmer underfoot, takes trolleys
120 GSM	Professional horticulture, orchards, berry tunnels	The grade most cooperatives ask us for
150 GSM	Container yards, heavy pots, solar farms	Only where wheels and heavy loads roll over it

Here is the full range. Each card opens the product page with its specifications.

Width, Roll Length, Grid Lines and Colour

Width is where a lot of money is quietly lost. Standard widths run from 1.0 m to 5.25 m, and the common ones are 1.2, 1.8, 3.66, 4.2 and 5.25 m. Order the width that covers your bed or row in one piece. Every join is an overlap of 10 to 15 cm of fabric you pay for and lay twice, plus a gap where weeds love to sneak through.

Rolls are 100 m long as standard. Rolls of 4.2 m and wider are normally folded in half before winding, so they are easier to handle and fit more per container. Full-width flat rolls on PVC cores are possible, and some greenhouse buyers prefer them because they unroll in one pass. The trade-off is that a 5.25 m flat roll weighs about 70 kg and needs two or three people, or a forklift with a carpet pole, to move.

Marker lines are woven in as coloured tapes, either a 15 x 15 cm grid or a single line every 30 cm. They let planting crews space holes without measuring. Green is standard; white and yellow are available, and white lines on black fabric are easier to see in low light. Fabric colour is usually black. White or white-on-black reflects light back into the crop and keeps the root zone cooler, which matters in greenhouses and hot climates.

The Specifications That Actually Matter

A proper weed mat data sheet quotes ASTM test methods. These are typical results for our woven grades:

Property (ASTM method)	80 GSM	90 GSM	100 GSM	110 GSM
Grab tensile, machine direction (D4632)	0.58 kN	0.67 kN	0.69 kN	0.73 kN
Grab tensile, cross direction (D4632)	0.24 kN	0.38 kN	0.38 kN	0.49 kN
Wide width strength, machine direction (D4595)	17 kN/m	18 kN/m	20 kN/m	22 kN/m
Trapezoidal tear, machine direction (D4533)	0.24 kN	0.31 kN	0.31 kN	0.31 kN
CBR puncture (D6241)	1.33 kN	2.00 kN	2.18 kN	2.45 kN
Water flow (D4491)	9 L/m²/s	9 L/m²/s	9 L/m²/s	9 L/m²/s
UV resistance, strength retained (D4355)	70%	80%	80%	80%

How to read it: grab tensile tells you how the fabric handles being pulled tight and pinned. CBR puncture tells you how it copes with stones, pot bases and boots. Water flow confirms it will not waterlog your beds. UV resistance is the one I would never compromise on, because a mat without enough UV stabiliser looks identical on delivery and falls apart in its second summer. Always ask your supplier for the batch test report, not a generic brochure sheet.

How Long Does a Weed Mat Last?

A UV-stabilised woven PP weed mat typically lasts 3 to 5 years left uncovered outdoors, and longer when covered with bark, gravel or stone. Three things shorten its life: too little UV stabiliser, very strong sun (Mediterranean, Middle East, Australia), and physical damage from machinery. Heavier grades and a higher UV dose push the life towards the upper end. Plan for about 4% shrinkage in direct sun in the first months and leave overlap at joins accordingly.

How to Install a Weed Control Mat

Installation is simple, but shortcuts show up fast. Clear existing weeds and level the soil first, because a weed mat stops new weeds rather than killing established ones. Lay the fabric taut and pin it with steel U-staples or plastic ground pins every 1 to 1.5 m along edges and joins, closer in windy sites. Overlap joins by 10 to 15 cm. Cut planting holes with a cross cut or a hot cutter that seals the edge, and use the marker lines to keep spacing even. In landscaping, a layer of bark or gravel on top doubles the fabric’s life and looks better.

Where Weed Mats Are Used

Nurseries and greenhouses use weed mat as a clean, dry floor under pots and benches, which also cuts fungus and pests. Fruit and vegetable growers lay it in rows with drip irrigation underneath, so water goes to the plants and not the weeds, and fruit stays off the soil. Orchards and vineyards use wide rolls between tree rows. Landscapers put it under paths, gravel and decorative beds. Solar farms use heavy grades to stop weeds from shading panels, and container nurseries use 150 GSM where trolleys and heavy pots move all day.

What Does Weed Mat Cost?

In bulk, woven PP weed mat is priced by weight and quoted per square metre or per roll. As a market guide in 2026, black woven weed mat trades at roughly USD 1.5 to 3.5 per kg FOB. For a 100 GSM fabric that is about USD 0.25 to 0.4 per m². Chinese offers sit at the bottom of that range and Indian mills somewhat higher due to quality differences. The price moves with polypropylene resin, so quotes are usually valid for around two weeks.

What pushes the price up: higher GSM, extra UV stabiliser, widths of 4.2 m and more, woven grid lines, white fabric, PVC cores, flat full-width rolls and printed retail packs. What pushes it down: full container loads of a few standard specs. My honest advice is to compare quotes per square metre at the same GSM and UV grade, not per roll. A cheap roll that is 10% lighter than declared, or shorter than 100 m, is not cheap.

How Many Rolls Fit in a Container?

Weed mat fills a container by volume long before it reaches the weight limit, so roll diameter is what really decides the count. These figures are for 120 GSM, 100 m rolls on PVC cores in a 40 ft high cube container:

Load	Rolls	Weight	Volume
5.25 m rolls only	280	about 20.0 MT	about 76 CBM
4.20 m rolls only	280	about 16.0 MT	about 76 CBM
1.10 m rolls only	1,400	about 21.7 MT	about 76 CBM
5.25 m + 1.10 m mixed	280 + 150	about 22.3 MT	about 76 CBM
5.25 m + 4.20 m + 1.10 m mixed	140 + 140 + 294	about 22.6 MT	about 76 CBM

Mixing widths is the trick. The short rolls fill the space at the door end that long rolls leave empty, so you ship more fabric for the same freight. These counts assume rolls about 21.5 cm in diameter, stacked by hand in staggered layers. We confirm the final count with a measured roll before booking.

Importing Weed Mat from India

HS code. Woven weed mat is classified under HS 5407.20 almost everywhere. India exports it under 5407 20 90. The USA uses 5407.20.0000. The EU and UK split it by width: 5407 20 11 for rolls under 3 m and 5407 20 19 for 3 m and wider. Non-woven weed mat goes under 5603. Declaring weed mat under plastics codes, which we see in some shipment records, invites reclassification and penalties.

Duties. This is where India has a real edge in some markets. In the USA the base duty on 5407.20 is free, but Chinese fabric pays far higher additional tariffs than Indian fabric. Under the India-UK trade agreement in force since July 2026, Indian textiles enter the UK duty-free. The EU currently charges the same 8% on Indian and Chinese weed mat, and the EU-India trade agreement concluded in January 2026 should remove it once it takes effect. Tariffs change often, so check the current rate with your customs broker.

Documents and quality checks. Every shipment should come with a commercial invoice, packing list, certificate of origin and the batch technical data sheet. Pre-shipment inspection by SGS, Bureau Veritas or Intertek can be arranged. We quote ex-factory, FOB Nhava Sheva, CFR or CIF to your port, and trial orders with mixed grades in one container are welcome.

Frequently Asked Questions

Talk to Us

If you are planning a season’s supply of weed control ground cover, send us your grade, width, roll length, marker line colour, quantity and destination port. We will come back with a clear quote and a loading plan for your container. You can reach me directly on WhatsApp or Telegram at +91 87663 05479, or by email at anil@newtonexports.com.