Product family
Steel buildings, warehouses and plant rooms rely on light roll-formed sections as much as on their main frames. Corona roll-forms C and Z purlins for roofs and walls, makes the sag rods that keep them in line, and supplies strut channel with its nuts and fittings for services and equipment. Each section is made to the depth, thickness, steel grade and coating the buyer specifies.
Explore cold-formed systems
Where it's used
Warehouses, factories and farm buildings carry their roof sheeting on purlins spanning between the main frames. Z purlins lapped over the rafters run continuous, and sag rods keep them straight while the sheets go on. Z Purlin, C Purlin and Sag Rods cover it.
Wall cladding hangs on girts, or side rails, fixed across the columns, and every door and window needs a framed opening. The same C and Z sections do both jobs, hung from the eaves with sag rods. C Purlin, Z Purlin and Sag Rods cover it.
Mechanical and electrical contractors hang pipes, ducts and cable trays on strut channel trapezes and brackets. Channel nuts grip the lips anywhere along the slot, so supports go up without drilling or welding. Universal Strut Channel / ‘C’ Strut Channel and Accessories cover it.
Panels, plant, instruments and solar arrays on roofs are mounted on bolted strut frames and light cold-formed members. Slotted channel lets a frame be adjusted on site. Universal Strut Channel / ‘C’ Strut Channel, Accessories and C Purlin cover it.
Three families
Product family
Threaded rods that tie purlins and girts together between the frames.
Product family
Roll-formed 41 mm channel and the fittings that turn it into supports and frames.
Cold-formed systems
ROOFS
Z purlins lapped over the rafters and C purlins at the eaves carry the roof sheeting, with sag rods holding them straight between frames.
Height (H): 4-14 in / 100-350 mm · Flange (B): 2.75-3 in / 60-90 mm
Specifications
Height (H): 3-14 in / 75-300 mm · Flange (B): 2.35-3 in / 60-75 mm
SpecificationsDiameter: 1/2, 5/8 in / 12, 16 mm · Length: 3-10 ft / 900 mm-3 m
SpecificationsWALLS
The same sections turned on their side carry the wall cladding across the columns and frame the openings.
Height (H): 3-14 in / 75-300 mm · Flange (B): 2.35-3 in / 60-75 mm
SpecificationsHeight (H): 4-14 in / 100-350 mm · Flange (B): 2.75-3 in / 60-90 mm
SpecificationsDiameter: 1/2, 5/8 in / 12, 16 mm · Length: 3-10 ft / 900 mm-3 m
SpecificationsTRAPEZE
A strut channel hung on two rods carries pipes, ducts and trays, each clamped to the channel with fittings that grip its lips.
Thickness: 12G 13G 14G 16G / 2.5 mm 2.3 mm 2.0 mm 1.5 mm · Size: 13/16" x 1-5/8" 1-5/8" x 1-5/8" 2-7/16" x 1-5/8" 3-1/4" x 1-5/8" / 21 mm x 41 mm 41 mm x 41 mm 61 mm x 41 mm 81 mm x 41 mm
Specifications
Channel nuts: Spring nut, plain channel nut, toothed nut · Thread: 1/4-1/2 in / M6-M12
SpecificationsFRAMING
Channel lengths bolted together with plates and brackets make posts, rails and stands for plant, panels and cable.
Thickness: 12G 13G 14G 16G / 2.5 mm 2.3 mm 2.0 mm 1.5 mm · Size: 13/16" x 1-5/8" 1-5/8" x 1-5/8" 2-7/16" x 1-5/8" 3-1/4" x 1-5/8" / 21 mm x 41 mm 41 mm x 41 mm 61 mm x 41 mm 81 mm x 41 mm
SpecificationsChannel nuts: Spring nut, plain channel nut, toothed nut · Thread: 1/4-1/2 in / M6-M12
SpecificationsQuestions answered
Complete product range
Each card shows the product role and first useful specification fields before the full detail page. Know a component by another name? Find it in the trade-names list.
Height (H): 3-14 in / 75-300 mm · Flange (B): 2.35-3 in / 60-75 mm
SpecificationsHeight (H): 4-14 in / 100-350 mm · Flange (B): 2.75-3 in / 60-90 mm
SpecificationsDiameter: 1/2, 5/8 in / 12, 16 mm · Length: 3-10 ft / 900 mm-3 m
SpecificationsThickness: 12G 13G 14G 16G / 2.5 mm 2.3 mm 2.0 mm 1.5 mm · Size: 13/16" x 1-5/8" 1-5/8" x 1-5/8" 2-7/16" x 1-5/8" 3-1/4" x 1-5/8" / 21 mm x 41 mm 41 mm x 41 mm 61 mm x 41 mm 81 mm x 41 mm
SpecificationsChannel nuts: Spring nut, plain channel nut, toothed nut · Thread: 1/4-1/2 in / M6-M12
Specifications