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Alliance  |  SKU: NGF35NW-03100
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Alliance Gator Fabric GF3.5 Non-Woven Geotextile

$75.99
Size

Ships same day on weekday orders placed before the 14:00 ET cut-off.

Typically 1 to 5 business days by UPS, FedEx Ground or USPS. Enter your ZIP for your dates.

Request a pallet quoteHow much do I need?Call (856) 418-4895

Ships fromWilliamstown, NJ (our warehouse)Sold byPolymeric Sand StorePaymentSecure checkout by ShopifyReturnsSee our return policy
Type
Landscape Fabric
Sizes
3 ft x 100 ft, 4 ft x 100 ft, 6 ft x 100 ft, 6 ft x 300 ft, 12 ft x 400 ft

About this item

  • 165 gal/min/sq ft water flow, the highest of the Gator fabric range.
  • 3.5 oz per sq yd (120 gsm) needle-punched non-woven polypropylene, hydrophilic treated for flow.
  • 80 lbf (360 N) grab tensile both directions, ASTM D4632.
  • Separation plus drainage in one layer.
  • Five roll sizes from a 3 ft handroll to 12 ft x 400 ft.
See the full description and data sheets

Shipping, pick-up and returns

Orders ship from Williamstown, New Jersey by UPS, FedEx Ground or USPS; weekday orders placed before 2 PM Eastern go out the same day. Warehouse pick-ups (call first so we can pull your order) and drop-off returns Monday to Friday 8 to 5, Saturday 8 to noon.

Return and refund policy · Shipping policy

Alliance Gator Fabric GF3.5 Non-Woven Geotextile Add to cart
  • Ships Same DayFrom our NJ warehouse
  • 3.5 oz Non-Woven80 lbf grab tensile
  • 165 gal/min/sq ftHighest flow in the range
  • Real Humans(856) 418-4895

Why Gator Fabric GF3.5?

Light Non-Woven Separation Fabric With the Highest Flow

Base stone migrating into soft subgrade is what makes a patio sink. A non-woven separator stops the two mixing while still letting water through, and GF3.5 lets more through than any other Gator fabric.

Full description and specs
  • 165 gal/min/sq ft water flow - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    165 gal/min/sq ft water flow

    The highest of the Gator fabric range.

  • 3.5 oz per sq yd (120 gsm) - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    3.5 oz per sq yd (120 gsm)

    Needle-punched non-woven polypropylene, hydrophilic treated for flow.

  • 80 lbf (360 N) grab tensile - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    80 lbf (360 N) grab tensile

    Both directions, ASTM D4632.

  • Separation plus drainage - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    Separation plus drainage

    In one layer.

How to Install Gator Fabric GF3.5

The short version. Always follow the Alliance data sheet.

  1. Step 1: Level and compact - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    Level and compact

    The subgrade to within 3/8 in.

  2. Step 2: Roll the fabric out - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    Roll the fabric out

    Over the area and up the sides.

  3. Step 3: Overlap seams by at least 12 in - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    Overlap seams by at least 12 in

    And stretch out every fold.

  4. Step 4: Place and compact - Alliance Gator Fabric GF3.5 Non-Woven Geotextile

    Place and compact

    Your base aggregate on top as normal.

Watch installation videosTechnical data sheet (PDF)Alliance PDF, opens in a new tab

Test a small area first.

Description

Light Non-Woven Separation Fabric With the Highest Flow

GF3.5 is the lighter of Alliance's two non-woven grades and the highest flowing at 165 gal/min/sq ft. 3.5 oz, 80 lbf grab tensile, hydrophilic treated, for separation and drainage under patios, walkways and low walls.

Ships Same Day
From our NJ warehouse		 3.5 oz Non-Woven
80 lbf grab tensile
165 gal/min/sq ft
Highest flow in the range		 Real Humans
(856) 418-4895

Why Contractors Ask for Gator Fabric GF3.5 by Name

Base stone migrating into soft subgrade is what makes a patio sink. A non-woven separator stops the two mixing while still letting water through, and GF3.5 lets more through than any other Gator fabric.

  • 165 gal/min/sq ft water flow, the highest of the Gator fabric range.
  • 3.5 oz per sq yd (120 gsm) needle-punched non-woven polypropylene, hydrophilic treated for flow.
  • 80 lbf (360 N) grab tensile both directions, ASTM D4632.
  • Separation plus drainage in one layer.
  • Five roll sizes from a 3 ft handroll to 12 ft x 400 ft.

Gator Fabric GF3.5 Specifications

Weight 3.5 oz per sq yd (120 gsm), ASTM D5261
Type Needle-punched non-woven polypropylene, hydrophilic treated
Grab tensile 80 lbf (360 N), machine and cross direction, ASTM D4632
Grab elongation 75 percent MD, 80 percent CD
Water flow 165 gal/min/sq ft
Seam overlap Minimum 12 in (30 cm)
Roll sizes 3x100 (10 lb), 4x100 (14 lb), 6x100 (20 lb), 6x300 (51 lb), 12x400 (131 lb)

Where Gator Fabric GF3.5 Works

Alliance rates GF3.5 for:

  • Patios, walkways and staircases
  • Low retaining walls
  • Garden and hardscape covering
  • Drainage control and erosion protection
  • Paving underlay and soil separation

Installation Requirements (Straight From the Manufacturer)

Overlap every seam by a minimum of 12 in (30 cm). A butted seam is a failure point.

Lay it over leveled, compacted soil within a 3/8 in (10 mm) tolerance, and stretch it so there are no folds or wrinkles under the aggregate.

Not sure if your project qualifies? Call us at (856) 418-4895 before you order. We will give you a straight answer, even if the answer is that this is not the right product for your job.

How to Install Gator Fabric GF3.5

The full step by step guide is in the official documentation below. Here is the shape of the job:

  1. Level and compact the subgrade to within 3/8 in.
  2. Roll the fabric out over the area and up the sides.
  3. Overlap seams by at least 12 in and stretch out every fold.
  4. Place and compact your base aggregate on top as normal.

GF3.5 or GF4.4?

Both are non-woven separators from the same family. The trade is strength against flow:

  • GF3.5, 3.5 oz, 80 lbf, 165 gal/min/sq ft. More flow, lighter, less money.
  • GF4.4, 4.4 oz, 120 lbf, 135 gal/min/sq ft. Half again the strength, and the grade specified under Gator Base and Gator X-Turf.
  • Light residential patio on decent soil, GF3.5 is enough. Gator Base, turf, wall backfill or soft clay, use GF4.4.

Quick Answers

What does a separation fabric actually do?
It keeps base aggregate and subgrade soil apart. Without it, stone migrates down into soft soil, the base thins, and the surface settles.

How much overlap on the seams?
Minimum 12 in (30 cm).

Can I use it under Gator Base?
Alliance specifies GF4.4 there, not GF3.5. Use the heavier grade for that.

Is it a weed barrier?
It will suppress weeds, but GF20 Polyspun is the product Alliance sells for that job and it costs less.

Which way up does it go?
Non-woven geotextile has no orientation. Just keep it flat and unwrinkled.

Official Alliance Gator Documentation

Technical Data Sheet (TDS): Weight, grab tensile, flow rate, roll sizes and installation from Alliance Gator.
Download the GF3.5 TDS (PDF) →

Documents are published by Alliance Gator. They open in a new tab. Every sheet we carry is also listed in our TDS and SDS library.

Pairs Well With

Order before our daily cutoff and your Gator Fabric GF3.5 ships today from New Jersey.

Work Out Your Rolls →

Questions about your project? Call (856) 418-4895 and you will get a real person who works with geotextiles every day.

Data sheets

The manufacturer's technical data sheet (coverage, joint width, cure and rain-safe times) and safety data sheet are collected in the TDS and SDS library. Every figure on this page comes from those sheets.

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Questions about this product

Ask a question ›
What sizes are available?
Size: 3 ft x 100 ft, 4 ft x 100 ft, 6 ft x 100 ft, 6 ft x 300 ft, 12 ft x 400 ft. The price shown is per 3 ft x 100 ft unless you pick another option.
When will it ship?
In-stock orders placed before 2:00 PM Eastern on a weekday ship the same day from our Williamstown, New Jersey warehouse by UPS or FedEx Ground. The cut-off is when the carriers start arriving; order after it, or on a weekend, and it ships the next business day. Just missed it? Call (856) 418-4895: if the carrier has not picked up yet we do our best to get it out the same day. The box above the Add to cart button shows the live countdown and an arrival estimate for your ZIP. Phones are answered 24/7; the warehouse itself is open for pick-ups and returns Monday to Friday 8 to 5 and Saturday 8 to noon, Eastern. For a pick-up, call first so we can pull your order.
Can I buy by the pallet?
Yes. Full pallets ship by freight truck, so we price the delivery for your address instead of guessing. Request a pallet quote or call (856) 418-4895 and we will call you back with a delivered price.
Where are the technical and safety data sheets?
The manufacturers' technical and safety data sheets are collected in the TDS and SDS library. Coverage, cure time and application temperatures on this page come from those sheets.
Is contractor or bulk pricing available?
No. One price for everyone: the price on the page is what contractors, landscapers and homeowners all pay. For full pallets, request a pallet quote and we will price the freight to your address.

How to lay landscape fabric

Step by step, start to finish. Click to play.