Fiberglass Corners | McMaster-Carr

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About Composites

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

A lightweight alternative to wood in structural applications, these FRP fiberglass 90° angles are strong. They're made of fiberglass reinforced polyester.

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

Outside				Inside
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.		Each
2 ft. Lg.
1/8" Wall Thick. (-0.0130" to 0.0130")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	7/8"	7/8"	0000000	00000
1 1/4"	-0.094" to 0.094"	1 1/4"	-0.094" to 0.094"	1 1/8"	1 1/8"	0000000	00000
3/16" Wall Thick. (-0.0190" to 0.0190")
3/4"	-0.094" to 0.094"	1"	-0.094" to 0.094"	9/16"	13/16"	0000000	00000
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 5/16"	1 5/16"	0000000	00000
1/4" Wall Thick. (-0.0250" to 0.0250")
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0000000	00000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0000000	00000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 3/4"	2 3/4"	0000000	00000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 3/4"	3 3/4"	0000000	00000
3/8" Wall Thick. (-0.0380" to 0.0380")
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 5/8"	2 5/8"	0000000	00000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 5/8"	3 5/8"	0000000	00000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 5/8"	5 5/8"	0000000	00000
1/2" Wall Thick. (-0.0500" to 0.0500")
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 1/2"	3 1/2"	0000000	00000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 1/2"	5 1/2"	0000000	000000
5 ft. Lg.
1/8" Wall Thick. (-0.0130" to 0.0130")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	7/8"	7/8"	0000000	00000
1 1/4"	-0.094" to 0.094"	1 1/4"	-0.094" to 0.094"	1 1/8"	1 1/8"	0000000	00000
3/16" Wall Thick. (-0.0190" to 0.0190")
3/4"	-0.094" to 0.094"	1"	-0.094" to 0.094"	9/16"	13/16"	0000000	00000
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 5/16"	1 5/16"	0000000	00000
1/4" Wall Thick. (-0.0250" to 0.0250")
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0000000	00000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0000000	00000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 3/4"	2 3/4"	0000000	00000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 3/4"	3 3/4"	0000000	000000
3/8" Wall Thick. (-0.0380" to 0.0380")
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 5/8"	2 5/8"	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 5/8"	3 5/8"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 5/8"	5 5/8"	0000000	000000
1/2" Wall Thick. (-0.0500" to 0.0500")
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 1/2"	3 1/2"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 1/2"	5 1/2"	0000000	000000
10 ft. Lg.
1/8" Wall Thick. (-0.0130" to 0.0130")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	7/8"	7/8"	0000000	00000
1 1/4"	-0.094" to 0.094"	1 1/4"	-0.094" to 0.094"	1 1/8"	1 1/8"	0000000	00000
3/16" Wall Thick. (-0.0190" to 0.0190")
3/4"	-0.094" to 0.094"	1"	-0.094" to 0.094"	9/16"	13/16"	0000000	00000
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 5/16"	1 5/16"	0000000	00000
1/4" Wall Thick. (-0.0250" to 0.0250")
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0000000	00000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0000000	000000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 3/4"	2 3/4"	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 3/4"	3 3/4"	0000000	000000
3/8" Wall Thick. (-0.0380" to 0.0380")
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 5/8"	2 5/8"	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 5/8"	3 5/8"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 5/8"	5 5/8"	0000000	000000
1/2" Wall Thick. (-0.0500" to 0.0500")
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 1/2"	3 1/2"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 1/2"	5 1/2"	0000000	000000
20 ft. Lg.
1/8" Wall Thick. (-0.0130" to 0.0130")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	7/8"	7/8"	0000000	00000
1 1/4"	-0.094" to 0.094"	1 1/4"	-0.094" to 0.094"	1 1/8"	1 1/8"	0000000	00000
3/16" Wall Thick. (-0.0190" to 0.0190")
3/4"	-0.094" to 0.094"	1"	-0.094" to 0.094"	9/16"	13/16"	0000000	00000
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 5/16"	1 5/16"	0000000	000000
1/4" Wall Thick. (-0.0250" to 0.0250")
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0000000	000000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0000000	000000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 3/4"	2 3/4"	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 3/4"	3 3/4"	0000000	000000
3/8" Wall Thick. (-0.0380" to 0.0380")
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 5/8"	2 5/8"	0000000	000000
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 5/8"	3 5/8"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 5/8"	5 5/8"	0000000	000000
1/2" Wall Thick. (-0.0500" to 0.0500")
4"	-0.094" to 0.094"	4"	-0.094" to 0.094"	3 1/2"	3 1/2"	0000000	000000
6"	-0.094" to 0.094"	6"	-0.094" to 0.094"	5 1/2"	5 1/2"	0000000	00000000

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

Structural FRP Fiberglass I-Beams

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

These FRP fiberglass I-beams are 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		5 ft. Lg.		10 ft. Lg.
Wd.	Ht.		Each		Each
3/16" Wall Thick. (-0.0188" to 0.0188")
1 1/2"	3 1/2"	0000000	000000	0000000	0000000
1/4" Wall Thick. (-0.025" to 0.025")
1 1/2"	3"	0000000	00000	0000000	000000
2"	4"	0000000	00000	0000000	000000
3"	6"	0000000	000000	0000000	000000
3/8" Wall Thick. (-0.0375" to 0.0375")
4"	8"	0000000	000000	0000000	000000

Structural FRP Fiberglass U-Channels

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

Made of fiberglass-reinforced polyester, these FRP fiberglass U-channels are an alternative to wood in structural applications. They are strong and lightweight.

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

Outside				Inside
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Straightness Tolerance		Each
5 ft. Lg.
1/8" Wall Thick. (-0.013" to 0.013")
2"	-0.094" to 0.094"	9/16"	-0.094" to 0.094"	1 3/4"	7/16"	0.050" per ft.	0000000	000000
3/16" Wall Thick. (-0.019" to 0.019")
3 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	3 1/8"	1 5/16"	0.050" per ft.	0000000	00000
1/4" Wall Thick. (-0.025" to 0.025")
3"	-0.094" to 0.094"	7/8"	-0.094" to 0.094"	2 1/2"	5/8"	0.050" per ft.	0000000	00000
3"	-0.094" to 0.094"	1"	-0.094" to 0.094"	2 1/2"	3/4"	0.050" per ft.	0000000	00000
4"	-0.094" to 0.094"	1 1/8"	-0.094" to 0.094"	3 1/2"	7/8"	0.050" per ft.	0000000	00000
6"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	5 1/2"	1 3/8"	0.050" per ft.	0000000	00000
8"	-0.094" to 0.094"	2 3/16"	-0.094" to 0.094"	7 1/2"	1 15/16"	0.050" per ft.	0000000	000000
10 ft. Lg.
1/8" Wall Thick. (-0.013" to 0.013")
2"	-0.094" to 0.094"	9/16"	-0.094" to 0.094"	1 3/4"	7/16"	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.019" to 0.019")
3 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	3 1/8"	1 5/16"	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.025" to 0.025")
3"	-0.094" to 0.094"	7/8"	-0.094" to 0.094"	2 1/2"	5/8"	0.050" per ft.	0000000	00000
3"	-0.094" to 0.094"	1"	-0.094" to 0.094"	2 1/2"	3/4"	0.050" per ft.	0000000	00000
4"	-0.094" to 0.094"	1 1/8"	-0.094" to 0.094"	3 1/2"	7/8"	0.050" per ft.	0000000	000000
6"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	5 1/2"	1 3/8"	0.050" per ft.	0000000	000000
8"	-0.094" to 0.094"	2 3/16"	-0.094" to 0.094"	7 1/2"	1 15/16"	0.050" per ft.	0000000	000000

Arc-Resistant GPO3 Fiberglass 90° Angles

Color: Red
Tensile Strength: 10,000-15,000 psi (Good)
Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)
Hardness: See table
For Use Outdoors: No
Specifications Met: UL 94 V-0

Because these GPO3 fiberglass 90° angles are arc and track resistant, they are often used for electrical applications in humid environments. They offer better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.

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

Outside				Inside
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Hardness	Straightness Tolerance		Each
3 ft. Lg.
3/16" Wall Thick. (-0.0200" to 0.0200")
2 9/16"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	2 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
4"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	3 13/16"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/4" Wall Thick. (-0.0200" to 0.0200")
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
3"	-0.094" to 0.094"	2 3/4"	-0.094" to 0.094"	2 3/4"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 ft. Lg.
1/8" Wall Thick. (-0.0200" to 0.0200")
1"	-0.062" to 0.062"	1"	-0.062" to 0.062"	7/8"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/8"	1 1/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 3/8"	1 3/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3/16" Wall Thick. (-0.0200" to 0.0200")
1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/16"	1 1/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 5/16"	1 5/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 13/16"	1 13/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 1/4"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/16"	1 5/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	2 5/16"	1 1/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1/4" Wall Thick. (-0.0200" to 0.0200")
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 1/4"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	2 1/2"	1 3/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 3/4"	2 3/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3/8" Wall Thick. (-0.0250" to 0.0250")
1 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 3/8"	1 5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 5/8"	2 5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
1/2" Wall Thick. (-0.0250" to 0.0250")
6"	-0.062" to 0.062"	3"	-0.062" to 0.062"	5 1/2"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
6 ft. Lg.
1/8" Wall Thick. (-0.0200" to 0.0200")
1"	-0.062" to 0.062"	1"	-0.062" to 0.062"	7/8"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/8"	1 1/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 3/8"	1 3/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.0200" to 0.0200")
1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/16"	1 1/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 5/16"	1 5/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 13/16"	1 13/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2 1/4"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/16"	1 5/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	2 5/16"	1 1/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2 9/16"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	2 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4"	-0.094" to 0.094"	1 5/8"	-0.094" to 0.094"	3 13/16"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.0200" to 0.0200")
1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 1/4"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
2 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	2 1/2"	1 3/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
3"	-0.094" to 0.094"	2 3/4"	-0.094" to 0.094"	2 3/4"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 3/4"	2 3/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
3/8" Wall Thick. (-0.0250" to 0.0250")
1 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 3/8"	1 5/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 5/8"	2 5/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
1/2" Wall Thick. (-0.0250" to 0.0250")
6"	-0.062" to 0.062"	3"	-0.062" to 0.062"	5 1/2"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000

Arc-Resistant GPO3 Fiberglass Hat Channels

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 Rating: Barcol 50 (Hard)
For Use Outdoors: No
Specifications Met: UL 94 V-0

Unlike similar U-channels, these GPO3 fiberglass hat channels have flanges for mounting to flat surfaces. Use them to route and insulate wire in humid environments. All of these hat channels are arc and track resistant. They also have better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're often called polyester-grade industrial laminate.

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

Outside				Inside
Width	Width Tolerance	Height	Height Tolerance	Width	Height	Straightness Tolerance		Each
4 ft. Lg.
1/8" Wall Thick. (-0.02" to 0.02")
4 19/32"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 5/32"	3/4"	0.050" per ft.	00000000	000000
5"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3"	1 1/4"	0.050" per ft.	00000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
9 9/16"	-0.062" to 0.062"	2 3/8"	-0.062" to 0.062"	7 1/16"	2 1/4"	0.050" per ft.	00000000	000000
6 ft. Lg.
1/8" Wall Thick. (-0.02" to 0.02")
4 19/32"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 5/32"	3/4"	0.050" per ft.	00000000	00000
5"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3"	1 1/4"	0.050" per ft.	00000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
9 9/16"	-0.062" to 0.062"	2 3/8"	-0.062" to 0.062"	7 1/16"	2 1/4"	0.050" per ft.	00000000	000000

Arc-Resistant GPO3 Fiberglass U-Channels

Color: Red
Tensile Strength: 10,000-15,000 psi (Good)
Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)
Hardness: See table
For Use Outdoors: No
Specifications Met: UL 94 V-0

These GPO3 fiberglass U-channels are often used for electrical applications in humid environments. They are arc and track resistant, plus they have better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.

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

Outside				Inside
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Hardness	Straightness Tolerance		Each
3 ft. Lg.
1/8" Wall Thick. (-0.025" to 0.025")
2 9/16"	-0.063" to 0.063"	1 7/32"	-0.032" to 0.032"	2 5/16"	1 3/32"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
3/16" Wall Thick. (-0.025" to 0.025")
3 9/16"	-0.063" to 0.063"	2 9/16"	-0.032" to 0.032"	3 3/16"	2 3/8"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 3/4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	4 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/4" Wall Thick. (-0.025" to 0.025")
6 1/2"	-0.040" to 0.040"	2 3/4"	-0.020" to 0.020"	6"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 ft. Lg.
1/16" Wall Thick. (-0.015" to 0.015")
2 3/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1/8" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	13/16"	-0.062" to 0.062"	1 3/4"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4 1/4"	2 3/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
5/32" Wall Thick. (-0.02" to 0.02")
5 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	5 3/16"	1 3/32"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
4"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3 5/8"	1 3/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
8 1/2"	-0.062" to 0.062"	2 11/16"	-0.062" to 0.062"	8 1/8"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
1/4" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	1"	-0.062" to 0.062"	1 1/2"	3/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 1/2"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/2"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 1/2"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3/8" Wall Thick. (-0.025" to 0.025")
11 9/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	10 17/32"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
5 ft. Lg.
1/16" Wall Thick. (-0.015" to 0.015")
2 3/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1/8" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	9/16"	-0.062" to 0.062"	1 3/4"	7/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
2 5/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3 19/32"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 11/32"	1"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
9 21/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	9 13/32"	1 1/2"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
5/32" Wall Thick. (-0.02" to 0.02")
5 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	5 3/16"	1 3/32"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
4"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3 5/8"	1 3/16"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
1/4" Wall Thick. (-0.02" to 0.02")
3"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 1/2"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
4"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 1/2"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4"	2 1/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
3/8" Wall Thick. (-0.025" to 0.025")
11 9/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	10 17/32"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
6 ft. Lg.
1/8" Wall Thick. (-0.025" to 0.025")
2 9/16"	-0.063" to 0.063"	1 7/32"	-0.032" to 0.032"	2 5/16"	1 3/32"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/8" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	9/16"	-0.062" to 0.062"	1 3/4"	7/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2"	-0.062" to 0.062"	13/16"	-0.062" to 0.062"	1 3/4"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 5/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4 1/4"	2 3/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
3/16" Wall Thick. (-0.025" to 0.025")
3 9/16"	-0.063" to 0.063"	2 9/16"	-0.032" to 0.032"	3 3/16"	2 3/8"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 3/4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	4 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
8 1/2"	-0.062" to 0.062"	2 11/16"	-0.062" to 0.062"	8 1/8"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.025" to 0.025")
6 1/2"	-0.040" to 0.040"	2 3/4"	-0.020" to 0.020"	6"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	1"	-0.062" to 0.062"	1 1/2"	3/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/2"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4"	2 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
3/8" Wall Thick. (-0.025" to 0.025")
11 9/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	10 17/32"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	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
Width	Width Tolerance	Height	Height Tolerance	Width	Height	Straightness Tolerance		Each
4 ft. Lg.
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	0000000
5 ft. Lg.
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	00000
6 ft. Lg.
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

Flame-Retardant FRP Fiberglass 90° Angles

Color: Gray
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
Specifications Met: ASTM E84 Class A

These lightweight FRP fiberglass 90° angles, which are made with a flame-retardant resin, meet ASTM E84 Class A. An alternative to wood in structural applications, they're 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. (-0.013" to 0.013")
1"	-0.094" to 0.094"	1"	-0.094" to 0.094"	7/8"	7/8"	0.050" per ft.	0000000	000000	0000000	000000
1/4" Wall Thick. (-0.025" to 0.025")
1 1/2"	-0.094" to 0.094"	1 1/2"	-0.094" to 0.094"	1 1/4"	1 1/4"	0.050" per ft.	0000000	00000	0000000	000000
2"	-0.094" to 0.094"	2"	-0.094" to 0.094"	1 3/4"	1 3/4"	0.050" per ft.	0000000	00000	0000000	000000
3"	-0.094" to 0.094"	3"	-0.094" to 0.094"	2 3/4"	2 3/4"	0.050" per ft.	0000000	000000	0000000	000000

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About Composites

Structural FRP Fiberglass 90° Angles

Structural FRP Fiberglass Square Tubes

Structural FRP Fiberglass I-Beams

Structural FRP Fiberglass U-Channels

Arc-Resistant GPO3 Fiberglass 90° Angles

Arc-Resistant GPO3 Fiberglass Hat Channels

Arc-Resistant GPO3 Fiberglass U-Channels

Arc-Resistant GPO3 Fiberglass Square Tubes

Flame-Retardant FRP Fiberglass 90° Angles