18oz Woven Roving

$19.44 USD

$19.44 yd

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Shipping calculated at checkout.

95 in stock

Width: 50"

50"

Length: 1 Yard

1 Yard 3 Yards 10 Yards Full Roll (125 Yards)

Quantity

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Woven roving is bulk. Coarse E-glass bundles woven 0/90 at 18 oz/yd² put thickness into a laminate faster than cloth of the same weight, which is why the classic polyester schedule alternates mat and roving: the mat wets the surfaces and fills the coarse weave, the roving does the building.

18 oz/yd² E-glass woven roving, 0/90, about 5 x 4 thread count
50 in wide
Runs in polyester, vinyl ester or epoxy
Cut to 1, 3 and 10 yards, or take the full roll (125 yards)
Always sandwich it with chopped strand mat in a polyester schedule

Never lay roving directly on roving. The coarse weave leaves voids where the bundles cross, and without a mat layer between them the plies have almost nothing to bond to.

Specifications

Ideal for:

- Mid-Heavyweight Marine & Auto Repairs

- boat construction and repair to reinforce hulls, stringers, and transoms.

- tooling molds used in repeat production of marine or automotive parts.

- panel repair or fabrication for RVs, trailers, and off-road vehicles

Size Options:

Available in various widths to suit your project needs.

Weight:

18oz/sqft

162oz/yard

Compatible with:

- Epoxy resin

- Polyester

- Vinyl ester resins for a flawless bond.

Medium-to-heavyweight fiberglass fabric that's widely used in marine, automotive, and structural applications where a solid balance of strength, durability, and flexibility is needed. It's more manageable than 40oz cloth but still offers significant reinforcement.

Includes

18oz Woven Roving 50" width by the yard

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Technical Specifications

E-GlassWoven RovingWorks with Epoxy, Polyester, Vinyl Ester

MaterialE-Glass

Weight18 oz/yd²

Weave / ConstructionWoven Roving

Fiber Orientation0°/90° (woven)

Available Widths50"

Full Roll Length125 yd

Thread Count~5 × 4

Resin-to-Reinforcement Ratio~1:1 by weight

Compatible ResinsEpoxy, Polyester, Vinyl Ester

Best ForFast bulk build between mat layers

Compare Fabrics

Product	18oz Woven RovingYou're viewingfrom $19.44	18oz Fiberglass E Clothfrom $27.45	40oz Fiberglass E Clothfrom $47.95	24oz Woven Rovingfrom $22.39
Material	E-Glass	E-Glass	E-Glass	E-Glass
Style	—	Style 7544	—	—
Weight	18 oz/yd²	18 oz/yd²	40 oz/yd²	24 oz/yd²
Weave	Woven Roving	Plain weave (2-end cloth)	Double plain weave	Woven Roving
Orientation	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)
Thickness	—	0.0207"	0.0386"	—
Widths	50"	50"	38"	50"
Full Roll	125 yd	125 yd	approx. 70 yd	approx. 52 yd
Thread Count	~5 × 4	—	—	~5 × 4
Resin Ratio	~1:1 by weight	~1:1 by weight	~1:1 by weight	~1:1 by weight
Resins	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester
Best For	Fast bulk build between mat layers	Heavy structural reinforcement	Very heavy structural build	Heavy bulk build between mat layers
	Selected	View	View	View

What To Expect When You Order Fabric Rolls

Is woven roving flexible?

It’s relatively stiff compared to other fiberglass fabrics, but it can still conform to gradual curves with proper wet-out and pressure.

Can I layer woven roving with other fiberglass materials?

Yes, and you usually should. Woven roving builds thickness fast but has a coarse weave, so it is almost always alternated with chopped strand mat: the mat fills the weave and ties the layers together for a stronger, void-free laminate. A common schedule is mat, roving, mat. Finish with cloth or mat for a smoother surface.

What resin should I use with woven roving?

Woven roving works well with polyester, vinyl ester, and epoxy resins. Polyester is common in boatbuilding, while epoxy is preferred for repairs and higher strength applications.

What is woven roving fiberglass?

Woven roving is a heavy-duty fiberglass fabric made from continuous strands woven into a coarse, crisscross pattern. It provides high tensile strength and is ideal for structural laminates in marine and industrial applications.

How is woven roving different from fiberglass cloth?

Woven roving is much thicker and heavier than standard fiberglass cloth. It’s used for strength and bulk, while cloth is typically used for finishing or lightweight laminates.