CrossRail System
K2 Multi Mount Kit, DC
Product number:
4000282-US_C
Designed for both efficiency and ease of installation, the Multi Mount features an open slot design with a retention lip, ensuring rapid and secure integration with rail components. Proudly made in the USA, this version meets the requirements of the IRA 2022 Domestic Content standards, making it an excellent choice for projects that prioritize American-made products.
USH +2, 5.5", w/K2 EverSeal, Runner, DC
Product number:
4000142-BR-US
Introducing the K2 Systems Universal Standard Hook +2, 5.5" with Rail Runner – the perfect solution for efficient solar installations on tile roofs. This versatile kit features the robust USH +2, 5.5" Base Kit, equipped with K2 EverSeal technology for outstanding waterproofing. Paired with the K2 Rail Runner Kit, installation becomes quick and easy, providing secure mounting without the need for T-bolts. Key features include: Versatile Compatibility: Seamlessly integrates with CrossRail 44-X, 44-X MAX, and 48-X systems. Premium Build: Constructed from durable Aluminum Alloy 6061-T6 and heavy-duty stainless steel hardware for long-lasting performance. Enhanced Stability: Features a serrated flange bolt and nylon spring for strong engagement with the rail profile. Designed for installers who prioritize speed and precision, this comprehensive kit includes everything needed for a smooth setup, backed by a 25-year warranty. Elevate your solar installations with the K2 Systems Universal Standard Hook +2, 5.5" Kit with Rail Runner!
USH +2, 5.5", w/K2 EverSeal, Runner
Product number:
4000142-BR
Introducing the K2 Systems Universal Standard Hook +2, 5.5" with Rail Runner – the perfect solution for efficient solar installations on tile roofs. This versatile kit features the robust USH +2, 5.5" Base Kit, equipped with K2 EverSeal technology for outstanding waterproofing. Paired with the K2 Rail Runner Kit, installation becomes quick and easy, providing secure mounting without the need for T-bolts. Key features include: Versatile Compatibility: Seamlessly integrates with CrossRail 44-X, 44-X MAX, and 48-X systems. Premium Build: Constructed from durable Aluminum Alloy 6061-T6 and heavy-duty stainless steel hardware for long-lasting performance. Enhanced Stability: Features a serrated flange bolt and nylon spring for strong engagement with the rail profile. Designed for installers who prioritize speed and precision, this comprehensive kit includes everything needed for a smooth setup, backed by a 25-year warranty. Elevate your solar installations with the K2 Systems Universal Standard Hook +2, 5.5" Kit with Rail Runner!
K2 Multi Mount Kit, Mill
Product number:
4000282
Designed for efficiency and ease of installation, the Multi Mount features an open slot design with a retention lip, allowing for rapid integration with rail components.
K2 Armor w/Big Foot, Kit
Product number:
4000559
Discover the K2 Armor with Big Foot Kit - a high-quality, German-engineered roof attachment for flat roofs, offering redundant waterproofing with K2 EverSeal. Ideal for TPO, rolled asphalt, concrete, and EPDM membrane roofs, this code-compliant solution ensures minimal pallet and freight costs. Optimize your solar installations with the compact and efficient K2 Armor.
Splice Foot XL #14 Kit, Mill
Product number:
4000300
Splice Foot XL Kit with #14 x 3in x 5/16in screws and K2 EverSeal preassembled on base.
Splice Foot XL Kit, Mill
Product number:
4000162
All-in-one mount and splice kit with K2 EverSeal preassembled on the base. Comes with one T-Bolt set and 2 self drilling lag screws.
Splice Foot X Kit, Mill
Product number:
4000113
All-in-one mount and splice kit with K2 EverSeal preassembled on the base. Comes with one T-Bolt set and 2 self drilling lag screws.
K2 Flex Foot Kit, Mill w/EverSeal
Product number:
4000718
The K2 Flex Foot is a versatile roof attachment that is compatible with nearly all roof types and can be installed to the rafter or decking.
Drop N Lock RT - Flat, Kit
Product number:
4000234
Drop N Lock RT - Flat, Kit is designed specifically for flat tile roofs, providing a secure and reliable mounting solution. This kit includes a 4.5" post, optimized for flat tile applications, ensuring a perfect fit and superior stability.
Drop N Lock RT- S, Kit
Product number:
4000235
Drop N Lock RT - S, Kit is designed specifically for S tile roofs, providing a secure and reliable mounting solution. This kit includes a 6" post, optimized for S tile applications, ensuring a perfect fit and superior stability.
Drop N Lock RT - W, Kit
Product number:
4000236
Drop N Lock RT - W, Kit is designed specifically for W tile roofs, providing a secure and reliable mounting solution. This kit includes a 6" post, optimized for W tile applications, ensuring a perfect fit and superior stability.
K2 Drop N Lock Post 4.5", Kit
Product number:
4000237
K2 Drop N Lock Post 4.5", Kit is designed to use on flat tile roofs, comp shingle, or rolled asphalt flat roofs, providing a secure and reliable mounting solution. This kit includes a 4.5" post that gives plenty of room for the modules to breath. You can pair it with the 4" Chem Link E-Curb and fill it with M-1.
K2 Drop N Lock Post 6", Kit
Product number:
4000238
K2 Drop N Lock Post 6", Kit is designed to use on flat tile roofs, comp shingle, or rolled asphalt flat roofs, providing a secure and reliable mounting solution. This kit includes a 6" post that gives plenty of room for the modules to breath. Although it's waterproofed on it's own with the K2 EverSeal, you can also pair it with the 4" Chem Link E-Curb and fill it with M-1 for added protection.
K2 Flash Comp Kit, Mill
Product number:
4000156
The K2 Flash Comp Kit is K2's very own composition shingle roof attachment. It is feature packed with redundant waterproofing.
K2 Flash Comp Kit, Dark
Product number:
4000157
The K2 Flash Comp Kit is K2's very own composition shingle roof attachment. It is feature packed with redundant waterproofing.
Universal Standard Hook, 9" Base, Kit
Product number:
4000140-B
K2 Systems offers the USH, 9", Base Kit, w/K2 EverSeal. Pre-installed with EverSeal for a quick and easy application.
Universal Standard Hook, 9" Base, Kit
Product number:
4000140
K2 Systems offers the USH, 9", Base Kit, w/K2 EverSeal. Pre-installed with EverSeal for a quick and easy application.
Flat Tile Hook X, Kit
Product number:
4000141-B
K2 Systems offers the Flat Tile Hook X Kit, w/K2 EverSeal. Our EverSeal technology offers a quick and easy installation to save you install time.
USH +2, 5.5" Base Kit, w/K2 EverSeal, DC
Product number:
4000142-B-US
The USH +2, 5.5" Base Kit by K2 Systems is designed to meet U.S. Domestic Content Requirements in compliance with the IRA 2022, making it an ideal choice for U.S. solar installations seeking federal incentives. Equipped with pre-installed K2 EverSeal technology, this kit offers outstanding waterproofing and a streamlined installation process. With its robust 5.5-inch base and pre-applied K2 EverSeal, the USH +2 Base Kit provides a dependable, weather-resistant solution tailored for the unique demands of American rooftops.
Universal Standard Hook+2, 5.5" Base Kit
Product number:
4000142
K2 Systems offers the USH +2, 5.5" Base Kit, w/K2 EverSeal. The EverSeal is pre-installed and ready for installation.
Tile Hook 3S Wide Base w/Hardware
Product number:
4001294
The Tile Hook 3S is a two piece adjustbale hook. Its base has three levels of height adjustability with 5.5' of east/west adjustability. The top includes a spot to attach an L-Foot.
Corrugated PowerClamp, Kit, DC
Product number:
4000307-US
Introducing the Corrugated PowerClamp Kit, expertly crafted in the USA to support your sustainable energy solutions while meeting the US Domestic Content requirements of the Inflation Reduction Act (IRA) 2022. This robust aluminum bracket, paired with high-quality stainless steel hardware, is specifically optimized for corrugated metal roofs. Designed for maximum strength and stability, the Corrugated PowerClamp Kit ensures reliable installation, making it the perfect choice for eco-conscious projects that prioritize domestic manufacturing.
Corrugated PowerClamp, Kit
Product number:
4000307
Aluminum bracket and stainless steel hardware optimized for corrugated roofs.
Trapezoidal PowerClamp, Kit, DC
Product number:
4000308-US
Introducing our Trapezoidal PowerClamp, proudly made in the USA, designed to support sustainable practices and meet the US Domestic Content requirements of the Inflation Reduction Act (IRA) 2022. Crafted with high-quality stainless steel hardware, this bracket ensures durability and reliability. It is compatible with ribbed panels ranging from 0.75" to 3", making it an ideal choice for your installation needs while contributing to domestic manufacturing.
Trapezoidal PowerClamp, Kit
Product number:
4000308
Aluminum bracket and stainless steel hardware, compatible with ribbed panels ranging from 0.75" - 3.00".
Standing Seam PowerClamp Standard,Set,DC
Product number:
4000017-US
The K2 Standing Seam PowerClamp is the perfect roof attachment for standing seam metal roofs, delivering superior strength and ease of installation. Engineered with precision and made in the USA, the Standing Seam PowerClamp meets the Domestic Content requirements under the Inflation Reduction Act (IRA), ensuring compliance and quality for your solar projects.
Standing Seam PowerClamp Standard, Set
Product number:
4000017
The PowerClamp is K2's roof attachment solution for standing seam metal roofs. This standard version uses two set screws.
Big Foot 6" w/ 3"+ Chem Link Clip
Product number:
4000218
The Big Foot is essentially a large L-Foot that provides more height adjustability. It is also compatible with a 3" Chem Link E-Curb and comes with a clip to help center your mount into the curb.
T-Foot X 6” Kit, Mill
Product number:
4000080
The T-Foot X is K2's roof attachment solution for pitched or low slope roofs. The kit includes the T-Bolt set to attach to the rail.
K2 Cross Clamp Set, Mill
Product number:
4000135
The Cross Clamp features a new and improved design allowing for easy one-handed installation with just one tool, offering both Mid and End Clamp functionality, compatible with module frames ranging from 30mm to 45mm, and maintaining a minimal inter-module gap of 0.5 inches.
K2 Cross Clamp Set, Dark
Product number:
4000145
The Cross Clamp features a new and improved design allowing for easy one-handed installation with just one tool, offering both Mid and End Clamp functionality, compatible with module frames ranging from 30mm to 45mm, and maintaining a minimal inter-module gap of 0.5 inches.
K2 Cross Clamp Set, Mill, DC
Product number:
4000135-US
The K2 Cross Clamp offers a versatile and efficient design for solar module installations, meeting U.S. Domestic Content Requirements under the IRA 2022 to help projects qualify for federal incentives. This newly improved clamp allows easy one-handed installation with just one tool, functioning as both a Mid and End Clamp. Compatible with module frames from 30mm to 45mm, it maintains a minimal inter-module gap of 0.5 inches, ensuring a sleek, low-profile finish while providing secure, reliable support across U.S. rooftops.
K2 Cross Clamp Set, Dark, DC
Product number:
4000145-US
The K2 Cross Clamp offers a versatile and efficient design for solar module installations, meeting U.S. Domestic Content Requirements under the IRA 2022 to help projects qualify for federal incentives. This newly improved clamp allows easy one-handed installation with just one tool, functioning as both a Mid and End Clamp. Compatible with module frames from 30mm to 45mm, it maintains a minimal inter-module gap of 0.5 inches, ensuring a sleek, low-profile finish while providing secure, reliable support across U.S. rooftops.
K2 Mid Clamp Set
Product number:
4000229_C
K2's updated Mid Clamp has the self-leveling base that was created from our innovative K2 End Clamp.
K2 End Clamp Set
Product number:
4000197
The K2 End Clamp is a self-leveling end clamp that is compatible with all K2 Systems.
Drop N Lock Flashing w/Everseal, Kit
Product number:
4000249-B
Drop N Lock Flashing w/Everseal, Kit description
Yeti Clamp 2.0, Set
Product number:
4000050-B
The Yeti Clamp 2.0 is K2 Systems' very own hidden end clamp, with enhanced aesthetics and simple installation.
CrossRail 44-X 172", Mill
Product number:
4000719
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it is just as strong as the 48-X.
CrossRail 44-X Max 172", Mill, DC
Product number:
4000819-US
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it doesn’t compromise on strength—matching the durability of the 48-X. Its enhanced profile design provides additional space for in-rail wire management, offering greater flexibility in installations. Proudly made in the USA, this product meets the requirements of the IRA 2022 Domestic Content standards, making it a reliable choice for projects that prioritize American manufacturing.
CrossRail 44-X Max 172", Dark
Product number:
4000820
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it doesn’t compromise on strength—matching the durability of the 48-X. Its enhanced profile design provides additional space for in-rail wire management, offering greater flexibility in installations.
CrossRail 44-X Max 172", Mill
Product number:
4000819
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it doesn’t compromise on strength—matching the durability of the 48-X. Its enhanced profile design provides additional space for in-rail wire management, offering greater flexibility in installations.
SPO CrossRail 44-X Max 86", Mill, DC
Product number:
4000816-US
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it doesn’t compromise on strength—matching the durability of the 48-X. Its enhanced profile design provides additional space for in-rail wire management, offering greater flexibility in installations. Proudly made in the USA, this product meets the requirements of the IRA 2022 Domestic Content standards, making it a reliable choice for projects that prioritize American manufacturing.
CrossRail 44-X 172", Dark
Product number:
4000720
The CrossRail 44-X may be K2's smallest and lightest rail profile, but it is just as strong as the 48-X.
CrossRail 48-X 172", Dark, DC
Product number:
4000724-US
The CrossRail 48-X is K2 Systems' most popular rail profile, engineered for durability and strength across diverse rooftop solar installations. Fully compliant with U.S. Domestic Content Requirements under the IRA 2022, this rail is eligible for federal incentives, making it a reliable choice for American solar projects. The CrossRail 48-X provides a robust, secure foundation for mounting, ensuring long-lasting performance and ease of installation across U.S. rooftops.
CrossRail 48-X 172", Mill, DC
Product number:
4000723-US
The CrossRail 48-X is K2 Systems' most popular rail profile, engineered for durability and strength across diverse rooftop solar installations. Fully compliant with U.S. Domestic Content Requirements under the IRA 2022, this rail is eligible for federal incentives, making it a reliable choice for American solar projects. The CrossRail 48-X provides a robust, secure foundation for mounting, ensuring long-lasting performance and ease of installation across U.S. rooftops.
CrossRail 48-X 172", Mill
Product number:
4000723
The CrossRail 48-X is K2 Systems' most popular rail profile, engineered for durability and strength across diverse rooftop solar installations.
CrossRail 48-XL 172", Dark
Product number:
4000728
The CrossRail 48-XL by K2 Systems is an exceptionally strong rail profile, specifically engineered to withstand extreme weather conditions, providing unmatched stability and durability.
CrossRail System
The CrossRail System allows for a fast and simple installation with K2’s preassembled universal components. It is a flexible system that can be installed on composition shingle, tile and standing seam roofs. The CrossRail is the base of many of our systems. With just two innovative components you can switch from the classic dual rail system to a Tilt Up or Shared Rail System.
CrossRail System
Areas of application
We offer traditional metal flashing as well as non-metal flashings that are compatible with all composition shingle roof types. Standard metal flashings require installing into the rafters, while our EverSeal options such as the Splice Foot and Mini Foot XL have the flexibility to be installed into the decking.
We offer a variety of tile hook options that are compatible with Flat, S and W-Tile roofs. Our Tile Hook 3S and Flat Tile Hook are more robust for extreme weather conditions. Our Flat Tile Hook X and Universal Hooks offer more flexibility and also are available with K2 EverSeal preassembled on the base.
You can attach the CrossRail System to a standing seam metal roof using either of our Standing Seam PowerClamps. They are available in Mini and Standard sizes. The mini has 1 set screw while the standard has 2.
CrossRail System
Technical data
| Rail Type | |
|---|---|
| CrossRail 44-X, Mill/Dark | |
| Material | 6000 Series Aluminum |
| W = width [mm] | 39 |
| H = height [mm] | 44 |
| Lengths [in] | 172", 185" |
| Applicable Roof Types | Composition shingle, tile, flat tile |
| CrossRail 48-X, Mill/Dark | |
| Material | 6000 Series Aluminum |
| W = width [mm] | 39 |
| H = height [mm] | 48 |
| Lengths [in] | 172", 185" |
| Applicable Roof Types | Composition shingle, tile, flat tile |
| CrossRail 48-XL, Mill/Dark | |
| Material | 6000 Series Aluminum |
| W = width [mm] | 39 |
| H = height [mm] | 48 |
| Lengths [in] | 172", 185" |
| Applicable Roof Types | Composition shingle, tile, flat tile |
| CrossRail 80, Mill/Dark | |
| Material | 6000 Series Aluminum |
| W = width [mm] | 39 |
| H = height [mm] | 172", 185" |
| Lengths [in] | 168", custom |
| Applicable Roof Types | Composition shingle, tile, flat tile |
CrossRail System
Downloads
Assembly Instructions
Data Sheet
Torque Flyer
CrossRail-ENG-7-05-HI
25-Year Warranty
CrossRail System
Videos
CrossRail System
K2 Base: Easy, fast and safe planning
Quick and easy planning in five steps of K2 mounting systems for pitched and flat roofs. Our free planning tool K2 Base has a dashboard for efficient project management. Google Maps integration and graphic drawing tools support you in planning and make it easier.