Ready Plastics
FR4SheetNatural

FR4 - 3.250" 48 x 48 Natural Sheet - 3.25 in × 48 in × 48 in Sheet

3.25 in × 48 in × 48 in Sheet

FR4 - 3.250" 48 x 48 Natural SheetFR4 - 3.250" 48 x 48 Natural Sheet - view 2FR4 - 3.250" 48 x 48 Natural Sheet - view 3FR4 - 3.250" 48 x 48 Natural Sheet - view 4FR4 - 3.250" 48 x 48 Natural Sheet - view 5
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This FR4 sheet measures 3.25″ thick, 48″ × 48″, finished in natural. Available to order — price $6591.85 per Each.

SpecificationValueTolerance
Shape / FormSheet
Thickness3.25Standard
Width48Standard
Length48Standard
ColorNatural
Weight500.46 lbs
About This Product

This FR4 Glass Epoxy sheet in Natural color is supplied in a substantial 3.25" thickness with full 48.0" x 48.0" dimensions, making it a strong choice for large-format electrical and structural fabrication. The extra-thick FR4 construction delivers outstanding rigidity, dependable dielectric insulation, and excellent moisture resistance, helping demanding components maintain stability and performance in harsh service environments.

Specifications

Shape

Sheet

Thickness

3.25 in

Width

48 in

Length

48 in

Weight

500.46 lbs

Color

Natural

Unit of Measure

Each

Other FR4 sizes

← All FR4stock & specs

Price

$6591.85 / Each

In Stock
21010 available
Available at 11 locations
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
CategoryFR4
FormSheet
Thickness3.25 in
Width48 in
Length48 in
Weight500.46 lbs

Typical Properties — FR4 - 3.250" 48 x 48 Natural Sheet

Glass Epoxy Fr4
Mechanical
PropertyTest MethodUnitValue
Tensile strengthpsi / MPa65,000 / 445
Compressive strengthpsi / MPa38,000 / 260
Flexural strength (LW -A 0.125″)psi / MPa60,000 / 410
Bond strengthpsi / MPa2,300 / 15
Shear strengthpsi / MPa21,500 / 145
Hardness (M scale)115
Izod impact strength at 49°C (LW)14.00
General
DescriptionValue
Specific gravity1.85
Flammability rating94V-0
Water absorption (24 hours)0.10
Operating Environment
PropertyTest MethodUnitValue
Maximum temperature°C / °F140 / 280

Typical properties are provided for reference only. Values may vary based on processing conditions, form factor, and lot. Contact Ready Plastics for certified test data.