T-Slotted Framing Rails
Use this versatile framing to configure machine guards, enclosures, carts, and workstations. These rails have continuous T-slots for attaching fittings. When choosing how many slots you want on your rail, consider how much flexibility you need for your setup and how finished you'd like your structure to appear. The more slots the rail has, the more design flexibility you will have. Keep in mind, open slots can collect dust and debris. Rails with closed sides give you a finished appearance but are more difficult to reconfigure or add components to later. All of these rails are made of aluminum.
Low-profile rails are half the width of double rails. They’re often used to attach handles, sensors, and other accessories.
Double-, triple-, and quad-profile rails are good for large structural applications, such as beams and posts. Typically, the larger the rail profile, the stronger the rail.
Solid rails are stronger than hollow rails. Hollow rails are lighter and more economical than solid rails.
Grooved rails help you align rails when connecting them. They also camouflage dents and marks better than smooth rails but can collect dust and grime. Smooth rails give a finished look. With no indentations to collect dust, they’re easier to clean than grooved rails. However, dents and marks are easier to see.
Black rails fade into the background and hide dirt and grime. They're good for vision systems where non-reflective material is needed. Cut-to-length rails can be ordered in increments of 0.125” or 0.25 cm.
For technical drawings and 3-D models, click on a part number.





Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | 1/2 ft. | 1 ft. | 1 1/2 ft. | 2 ft. | 3 ft. | 4 ft. | 5 ft. | 6 ft. | 8 ft. | 10 ft. | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1" | 1" | Solid | 0.256" | 0.323" | 000000000 | ||||||||||
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 000000000 | ||||||||||
1 1/2" | 1 1/2" | Solid | 0.32" | 0.484" | 000000000 | ||||||||||
Black Anodized Aluminum—Smooth Rail Texture | |||||||||||||||
20mm | 20mm | Solid | 5mm | 6.3mm | 00000000 | ||||||||||
25mm | 25mm | Solid | 6.5mm | 8.1mm | 0000000 | ||||||||||
30mm | 30mm | Hollow | 8mm | 9mm | 00000000 | ||||||||||
40mm | 40mm | Hollow | 8mm | 12.2mm | 0000000 | ||||||||||
40mm | 40mm | Solid | 8mm | 12.2mm | 00000000 | ||||||||||
45mm | 45mm | Hollow | 10mm | 14.5mm | 00000000 |





To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
1" | 1" | Solid | 0.256" | 0.323" | 1" to 240" in 0.125" increments | 000000000 | 00000 |
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 000000000 | 0000 |
1 1/2" | 1 1/2" | Solid | 0.32" | 0.484" | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
20mm | 20mm | Solid | 5mm | 6.3mm | 2" to 240" in 0.125" increments | 00000000 | 000 |
25mm | 25mm | Solid | 6.5mm | 8.1mm | 0.75" to 240" in 0.125" increments | 00000000 | 000 |
30mm | 30mm | Hollow | 8mm | 9mm | 2" to 236" in 0.125" increments | 00000000 | 000 |
40mm | 40mm | Hollow | 8mm | 12.2mm | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
40mm | 40mm | Solid | 8mm | 12.2mm | 2" to 240" in 0.125" increments | 00000000 | 0000 |
45mm | 45mm | Hollow | 10mm | 14.5mm | 2" to 236" in 0.125" increments | 00000000 | 0000 |




To order: Please specify length in increments of 0.25 cm within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per cm | |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
---|---|---|---|---|---|---|---|
20mm | 20mm | Solid | 5mm | 6.3mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 00000 |
25mm | 25mm | Solid | 6.5mm | 8.1mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 000 |
30mm | 30mm | Hollow | 8mm | 9mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 000 |
40mm | 40mm | Hollow | 8mm | 12.2mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 000 |
40mm | 40mm | Solid | 8mm | 12.2mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 000 |
45mm | 45mm | Hollow | 10mm | 14.5mm | 2 cm to 609 cm in 0.25 cm increments | 00000000 | 000 |





Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | 1 ft. | 2 ft. | 3 ft. | 4 ft. | 5 ft. | 6 ft. | 8 ft. | 10 ft. | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1" | 1" | Solid | 0.256" | 0.323" | 0000000 | ||||||||
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 0000000 | ||||||||
1 1/2" | 1 1/2" | Solid | 0.32" | 0.484" | 0000000 | ||||||||
Black Anodized Aluminum—Smooth Rail Texture | |||||||||||||
40mm | 40mm | Solid | 8mm | 12.2mm | 0000000 |





To order: Please specify length in increments of 0.125” within the range listed.








To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
---|---|---|---|---|---|---|---|
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 00000 |







To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 00000 |







To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
---|---|---|---|---|---|---|---|
1 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 00000 |








To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
1" | 1/2" | Hollow | 0.256" | 0.323" | 0.75" to 240" in 0.125" increments | 00000000 | 00000 |





Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | 1 ft. | 2 ft. | 3 ft. | 4 ft. | 5 ft. | 6 ft. | 8 ft. | 10 ft. | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2" | 1" | Solid | 0.256" | 0.323" | 000000000 | ||||||||
3" | 1 1/2" | Hollow | 0.32" | 0.484" | 000000000 | ||||||||
3" | 1 1/2" | Solid | 0.32" | 0.484" | 000000000 | ||||||||
Black Anodized Aluminum—Smooth Rail Texture | |||||||||||||
40mm | 20mm | Solid | 5mm | 6.3mm | 00000000 | ||||||||
50mm | 25mm | Solid | 6.5mm | 8.1mm | 0000000 | ||||||||
60mm | 30mm | Hollow | 8mm | 9mm | 00000000 | ||||||||
80mm | 40mm | Hollow | 8mm | 12.2mm | 0000000 | ||||||||
80mm | 40mm | Solid | 8mm | 12.2mm | 00000000 | ||||||||
90mm | 45mm | Hollow | 10mm | 14.5mm | 000000 |





To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
2" | 1" | Solid | 0.256" | 0.323" | 2" to 240" in 0.125" increments | 00000000 | 00000 |
3" | 1 1/2" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 0000 |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
3" | 1 1/2" | Solid | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 0000 |
40mm | 20mm | Solid | 5mm | 6.3mm | 2" to 240" in 0.125" increments | 00000000 | 000 |
50mm | 25mm | Solid | 6.5mm | 8.1mm | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
60mm | 30mm | Hollow | 8mm | 9mm | 2" to 240" in 0.125" increments | 00000000 | 000 |
80mm | 40mm | Hollow | 8mm | 12.2mm | 2" to 240" in 0.125" increments | 00000000 | 0000 |
80mm | 40mm | Solid | 8mm | 12.2mm | 2" to 240" in 0.125" increments | 00000000 | 0000 |
90mm | 45mm | Hollow | 10mm | 14.5mm | 2" to 240" in 0.125" increments | 00000000 | 0000 |





To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
3" | 1" | Solid | 0.256" | 0.323" | 2" to 240" in 0.125" increments | 00000000 | 00000 |
4 1/2" | 1 1/2" | Hollow | 0.32" | 0.484" | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
4 1/2" | 1 1/2" | Solid | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 0000 |





Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | 1 ft. | 2 ft. | 3 ft. | 4 ft. | 5 ft. | 6 ft. | 8 ft. | 10 ft. | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2" | 2" | Solid | 0.256" | 0.323" | 000000000 | ||||||||
3" | 3" | Hollow | 0.32" | 0.484" | 000000000 | ||||||||
3" | 3" | Solid | 0.32" | 0.484" | 000000000 | ||||||||
Black Anodized Aluminum—Smooth Rail Texture | |||||||||||||
60mm | 60mm | Hollow | 8mm | 9mm | 00000000 | ||||||||
80mm | 80mm | Solid | 8mm | 12.2mm | 00000000 | ||||||||
90mm | 90mm | Hollow | 10mm | 12.5mm | 00000000 |





To order: Please specify length in increments of 0.125” within the range listed.
Rail Ht. | Rail Wd. | Rail Construction | T-Slot Wd. | T-Slot Dp. | Choose a Length | Per Inch | |
Black Anodized Aluminum—Grooved Rail Texture | |||||||
---|---|---|---|---|---|---|---|
2" | 2" | Solid | 0.256" | 0.323" | 2" to 240" in 0.125" increments | 00000000 | 00000 |
Black Anodized Aluminum—Smooth Rail Texture | |||||||
3" | 3" | Hollow | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 0000 |
3" | 3" | Solid | 0.32" | 0.484" | 2" to 240" in 0.125" increments | 00000000 | 0000 |
80mm | 80mm | Hollow | 8mm | 12.2mm | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
80mm | 80mm | Solid | 8mm | 12.2mm | 0.75" to 240" in 0.125" increments | 00000000 | 0000 |
Lightweight Composite T-Slotted Framing and Fittings
Build lightweight structures, such as light duty machine guards, enclosures, and carts, with framing that is two-thirds the weight of aluminum framing. Made of 30% polypropylene and 70% wood, they’re not as strong as aluminum rails, but they’re nonconductive, easy to machine, and more corrosion resistant. Good for lab environments, they also withstand cleaning with chemicals better than aluminum. Use their continuous T-slots to attach fittings. They work with any T-slotted component for 40 mm rails that doesn’t require machining. View additional structural brackets and fasteners.
Double rails are stronger than single rails.
For technical drawings and 3-D models, click on a part number.