Manthorpe's Short Block Intermediate Tray is designed for applications where random stone or blockwork is specified. The GW291 SBS and GW292 SBS Short Right & Left Hand Intermediate Tray suits larger course heights typically 150mm, 225mm in either stonework or blockwork and has an upstand at one end only. This is so that the water can run out of the tray down the cavity tray system. The flexible perpend protector attached to the tray prevents driving rain penetrating the outer wall and tracking across the masonry. The tray has a unique front mortar clip that can be removed at any time once the mortar has set leaving a 25mm deep aperture into which the lead is inserted into and secured with lead wedges. The GW291 SBS and GW292 SBS Short Right & Left Hand Intermediate Tray can also be supplied with short or long lead securely attached with staples in either code 4 or code 5 (special order) lead. Specification Colour: BlackMaterial: PolyropyleneSize Information (225mm Coursing)Length: 448mmRoof Pitch: 35-55 degrees.Size Information (150mm Coursing)Length: 448mmRoof Pitch: 25-50 degrees. Installation Strike a line or use a dummy truss offset 75mm from the proposed finished roof line, one tray should be placed in each course at the intersection of this line. Do not fit the trays into the nearest perp end, blockwork will need to be cut to achieve correct pitch, but will be hidden by the lead flashing. Do not dry bed the trays, lay on a thin skim of mortar. Features Part of the blockwork stepped tray system. Left and right hand intermediate trays. Extended stop end for larger coursing. Removable mortar strip for lead placement. Short block trays for higher degree pitches. Can be supplied with lead attached.