Fiberglass Rectangular Tubing

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	Material Material

Garolite

FRP Fiberglass

Fiberglass

	Reinforcement Material Reinforcement Material

Fiberglass Fabric

Cotton Fabric

	System of Measurement System of Measurement

Inch

	Outside Width Outside Width

	Outside Height Outside Height

	Inside Width Inside Width

	Wall Thickness Wall Thickness

	Inside Height Inside Height

	Length Length

	Color Color

	Gray		Green
	Brown		Red

	Flexibility Flexibility

	Rigid

	Hardness Rating Hardness Rating

Hard

Extra Hard

	Compressive Strength Compressive Strength

	For Use Outdoors For Use Outdoors

Yes

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Texture Texture

	Smooth

	Resin Material Resin Material

Epoxy

Polyester

Plastic

	Impact Strength Rating Impact Strength Rating

Poor

Excellent

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Water Absorption Rating Water Absorption Rating

Poor

Good

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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36 Products

About Composites

Slotted Hole

Solid

Fiberglass channel is nonconductive with good resistance to chemicals and salt water. It's about half the weight of aluminum and has thicker walls than the other materials.

6'8" length channel is for use with beams spaced 6 ft. apart. The length allows 4" on each end to attach the channel to the beam.

For technical drawings and 3-D models, click on a part number.

Slotted Hole—1" Slot Lg. × 3/8" Slot Wd.

	Channel
Material	Ht.	Wd.	Thick.	Inside Channel Wd.		1 ft.	1 1/2 ft.	2 ft.	3 ft.	4 ft.	5 ft.	6 ft.	6'8"	8 ft.	10 ft.
Gray Fiberglass	1 5/8"	1 5/8"	0.16"	3/4"	0000000	000000	000000	000000	000000	000000	000000	000000	000000	000000	0000000

Solid

	Channel
Material	Ht.	Wd.	Thick.	Inside Channel Wd.		1 ft.	1 1/2 ft.	2 ft.	3 ft.	4 ft.	5 ft.	6 ft.	6'8"	8 ft.	10 ft.
Gray Fiberglass	1 5/8"	1 5/8"	0.188"	3/4"	0000000	00000	000000	000000	000000	000000	000000	000000	000000	000000	000000

Multipurpose Flame-Retardant Garolite G-10/FR4 Rectangular Tubes

Color: Green
Maximum Temperature: 265° F
Tensile Strength: 32,000-40,000 psi (Excellent)
Impact Strength: 5.5-12 ft.-lbs./in. (Excellent)
Hardness: Rockwell M100 (Extra Hard)
For Use Outdoors: Yes
Specifications Met: MIL-I-24768/27

These rectangular tubes are flame retardant, machinable, and electrically insulating. They’re made of epoxy resin, making them good for use with printed circuit boards, insulating washers, and transformer components. With low moisture absorption, these tubes are often used as thermal insulators. Made with fiberglass fabric reinforcement, they’re strong and easier to machine than other glass cloth phenolics. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.

For technical drawings and 3-D models, click on a part number.

Outside				Inside
Width	Width Tolerance	Height	Height Tolerance	Width	Height	Length		Each
0.063" Wall Thickness
2.156"	-0.015" to 0.015"	1.156"	-0.015" to 0.015"	2.03"	1.03"	36"	0000000	0000000
1/8" Wall Thickness
3/4"	-0.015" to 0.015"	3/4"	-0.015" to 0.015"	1/2"	1/2"	36"	0000000	000000
1"	-0.015" to 0.015"	7/8"	-0.015" to 0.015"	3/4"	5/8"	36"	0000000	000000
1/4" Wall Thickness
1 5/8"	-0.015" to 0.015"	1 1/4"	-0.015" to 0.015"	1 1/8"	3/4"	36"	0000000	000000

Easy-to-Machine Garolite LE Rectangular Tubes

Color: Brown
Max. Temperature: 235° F
Tensile Strength: 6,000-15,300 psi (Good)
Impact Strength: 1-1.25 ft.-lb./in. (Poor)
Hardness: Rockwell M105
For Use Outdoors: Yes

Easily turn these rectangular tubes into parts for transformers and switchgears using high-speed tooling. Made with cotton fabric reinforcement, they’re also good for crafting intricate items—from fine-tooth gears to control boards. Though easier to machine, these tubes are not as strong as those with glass cloth or paper reinforcement. Garolite LE is also called industrial laminate and phenolic.

For technical drawings and 3-D models, click on a part number.

Outside				Inside		3 ft. Lg.
Width	Width Tolerance	Height	Height Tolerance	Width	Height		Each
1/16" Wall Thick. (-0.03" to 0.03")
3/8"	-0.015" to 0.015"	3/8"	-0.015" to 0.015"	1/4"	1/4"	0000000	0000000
1/2"	-0.015" to 0.015"	1/2"	-0.015" to 0.015"	3/8"	3/8"	0000000	000000
1/8" Wall Thick. (-0.03" to 0.03")
3/4"	-0.015" to 0.015"	3/4"	-0.015" to 0.015"	1/2"	1/2"	0000000	000000
1"	-0.015" to 0.015"	7/8"	-0.015" to 0.015"	3/4"	5/8"	0000000	000000
1/4" Wall Thick. (-0.03" to 0.03")
1 5/8"	-0.015" to 0.015"	1 1/4"	-0.015" to 0.015"	1 1/8"	3/4"	0000000	000000
1 3/4"	-0.015" to 0.015"	1 1/2"	-0.015" to 0.015"	1 1/4"	1"	0000000	000000

Structural FRP Fiberglass Square Tubes

Color: Green
Temperature Range: -60° F to 140° F
Tensile Strength: 7,000-30,000 psi (Good)
Impact Strength: 4-25 ft.-lbs./in. (Excellent)
Hardness: Barcol 45 (Hard)
For Use Outdoors: Yes

Use these FRP fiberglass square tubes as an alternative to wood in structural applications. Made of fiberglass-reinforced polyester, they are strong and lightweight.

For technical drawings and 3-D models, click on a part number.

Outside				Inside			5 ft. Lg.		10 ft. Lg.
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Straightness Tolerance		Each		Each
1/8" Wall Thick. (-0.019" to 0.019")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	3/4"	3/4"	0.03” per ft.	0000000	000000	0000000	000000
1 1/4"	-0.094" to 0.094"	1 1/4"	-0.094" to 0.094"	1"	1"	0.03” per ft.	0000000	00000	0000000	00000
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0.03” per ft.	0000000	00000	0000000	00000
1 3/4"	-0.094" to 0.094"	1 3/4"	-0.094" to 0.094"	1 1/2"	1 1/2"	0.03” per ft.	0000000	00000	0000000	00000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0.03” per ft.	0000000	00000	0000000	00000
1/4" Wall Thick. (-0.038" to 0.038")
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 1/2"	1 1/2"	0.03” per ft.	0000000	00000	0000000	000000
2 1/2"	-0.094" to 0.094"	2 1/2"	-0.094" to 0.094"	2"	2"	0.03” per ft.	0000000	000000	0000000	000000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 1/2"	2 1/2"	0.03” per ft.	0000000	000000	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 1/2"	3 1/2"	0.03” per ft.	0000000	000000	0000000	000000
3/8" Wall Thick. (-0.056" to 0.056")
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 1/4"	5 1/4"	0.03” per ft.	0000000	000000	0000000	000000

Arc-Resistant GPO3 Fiberglass Square Tubes

Color: Red
Temperature Range: -50° F to 265° F
Tensile Strength: 10,000-15,000 psi (Good)
Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)
Hardness: Barcol 50 (Hard)
For Use Outdoors: No
Specifications Met: UL 94 V-0

Route and insulate wire using these square fiberglass tubes, which fit better along edges and around corners than round tubes. Use them for electrical applications in humid locations. They’re arc and track resistant, and better electrical insulators than FRP fiberglass. Made of fiberglass-reinforced polyester, they’re also known as polyester-grade industrial laminate.

For technical drawings and 3-D models, click on a part number.

Outside				Inside			3 ft. Lg.		6 ft. Lg.
Width	Width Tolerance	Height	Height Tolerance	Width	Height	Straightness Tolerance		Each		Each
1/8" Wall Thick. (-0.02" to 0.02")
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 1/4"	1 1/4"	0.050" per ft.	00000000	000000	00000000	000000
1/4" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 1/2"	1 1/2"	0.050" per ft.	00000000	000000	00000000	000000

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About Composites

Strut Channel

Multipurpose Flame-Retardant Garolite G-10/FR4 Rectangular Tubes

Easy-to-Machine Garolite LE Rectangular Tubes

Structural FRP Fiberglass Square Tubes

Arc-Resistant GPO3 Fiberglass Square Tubes