In the Sleeved Rail System, rails run past the faces of the columns, and the section depth of the rail plus the clearance required for a standard fixing cleat together determine the minimum dimension from the column face to the inside of the vertical cladding. Joints in the rails are sleeved to give continuity, allowing the use of more economical sections and giving an improved deflection performance.

Double Span Joint Arrangement. 
This system combines single and double span rails with their joints staggered and sleeved. The provision of a sleeve at the unjointed connections over the penultimate support is required.

Standard Punching Patterns. 
These layouts  do not imply that all sections are suitable.

Non Standard Punching Patterns. 

Additional holes on the standard punchlines will be made as detailed. Non standard punchlines can be incorporated at no extra charge.