NW4 Non Woven Landscape Fabric-Drainage/Filtration

Price range: $69.99 through $774.19

NW4 is a medium‑weight non woven landscape fabric with high water flow, excellent filtration, and dependable soil separation for retaining walls, French drains, and hardscape bases.

Features:

  • Allows high water flow
  • Soil-separation for added stability
  • High-strength/dimensionally stable
  • Rot and mildew resistant

30-Day Returns Guaranteed

Reliable Shipping

30-Day Returns Guaranteed

Reliable Shipping

SKU: N/A Categories: , Brand:

Product Specs

SIZESQ YDS/ROLLQUANTITY
3´x100´33.3342/PLT
3´x300´100.0016/PLT
4´x100´44.4442/PLT
4´x300´133.3316/PLT
6´x100´66.6724/PLT
6´x300´200.0012/PLT
12.5´x360´500.003/BNDL
15´x360´600.003/BNDL

NW4 Drainage and Filtration Fabric delivers dependable performance for demanding landscape and hardscape projects. This non woven landscape fabric excels at soil separation and filtration while still allowing high water flow. Use it behind retaining walls, in French drains, and beneath patios and walkways to keep base materials clean and stable. This non woven landscape fabric helps prevent soil migration, supports healthy plant growth, and stands up to tough site conditions for long-lasting results.

  • High water flow: Maintains strong permeability for effective drainage.
  • Soil separation: Keeps fines out of base layers for added stability.
  • High strength: Dimensionally stable fabric for consistent performance.
  • Promotes healthy vegetation: Allows air and water to reach roots.
  • Easy installation: Unroll, cut to fit, overlap 4 to 6 inches, and secure with SRW Fabric Staples.
  • Versatile use: Ideal behind retaining walls, in French drains, and under hardscaping elements.

See spec sheet.

Application Instructions

  1. Prepare Area
    • Remove all weeds from the desired area. For added protection, apply a pre-emergent herbicide before laying down fabric.
  2. Place Fabric
    • Unroll non woven landscape fabric and cut to the desired length. Fit fabric around plants, lights, and other objects by cutting slits or an “X” where necessary—overlapping a minimum of 4-6 inches and secure with SRW Fabric Staples, staggering 1.2 staples per square yard.
  3. Cover Fabric
    • Immediately cover with 3-4 inches of mulch, bark, decorative rock, or stone to protect fabric from sunlight and to enhance the appearance of your project.
Weight N/A
Dimensions N/A
Drainage-fabric-roll-size

3'x100', 3'x300', 4'x100', 4'x300', 6'x100', 6'x300', 12.5'x360', 15'x360'

Landscape Fabric FAQs

Use SB2 (Spunbond) for garden weed control and light landscaping. Use SS5 (Woven) under driveways, patios, and walkways for base stabilization and soil separation. Use NW4 (Non-Woven) for high-flow drainage and soil filtration behind retaining walls and in French drains.

Woven fabric acts as a heavy-duty separation barrier between native subgrade soil and crushed aggregate bases. By preventing fine soils from migrating up into the gravel, it stops rutting and settling, extending hardscape lifespan by 50% to 70%.

Non-woven fabric features randomly felted fibers that allow extremely high water flow while filtering out fine silt. This prevents clogs in French drains, perforated pipes, and drainage rock behind retaining walls.

For garden weed barriers (SB2) and non-woven drainage fabrics (NW4), overlap seams by 4 to 6 inches. For structural woven stabilization fabric (SS5) under driveways or patios, overlap seams by 18 to 24 inches depending on subgrade soil conditions.

Anchor the fabric smoothly using metal fabric staples. Secure weed barriers and non-woven drainage fabrics at a rate of approximately 1.2 staples per square yard, and woven stabilization fabric at roughly 1.3 staples per square yard.

Yes. Cover weed barriers and non-woven drainage fabrics immediately with 3 to 4 inches of mulch, bark, or stone aggregate to protect the material from long-term UV sunlight exposure.

Landscape fabric rolls ship reliably with a 30-day return guarantee. Contractor-sized folded or full-length rolls ship bundled or on commercial freight pallets depending on total order weight.

Begin Your Project journey at our showroom

Visit our 5,000 square feet indoor hardscape materials showroom in New Holland, PA where you will find hardscape layouts, outdoor kitchen ideas, patio paver designs, patio lighting features, and our high-quality patio furniture all on display. Find the colors and textures that best complement your style, and a guide to help you choose the best combinations for your hardscape project in New Holland, PA. Here you will find hundreds of hardscape materials on display along with a full display of backyard and patio ideas.