INFORMATION TO BE SUPPLIED WHEN ORDERING 1. Width of opening between jambs. ROLL-UP DOORS ARE MADE IN ACCORDANCE TO SPECIFIC SPECIFICATIONS AS REQUIRED BY BHP BILLITON AND SASOL. 2. Height of opening from floor to underside of lintel. 3. Nature of building (brick, concrete, steel, etc). 4. Nature and construction as well as depth of lintel. 5. Thickness and construction of walls or steel framing in the case of steel buildings. 6. Whether doors are to be fitted inside, outside or within the opening. 7. Clear headroom and clearances on right and left sides of opening. 8. Side on which operating mechanism is preferred (left-hand or right-hand, viewed from inside looking out). 9. Whether wicket doors are required and preferred handling, remembering that these should be opposite to the opening of the mechanism.   (continued on the next page)           NEXT PAGE