Heavy-duty pull-out shelving systems, disassembled: With 2 pull-out frames for part extension (PE, 65% extension) and 1 fixed frame as top shelf, each including chipboard inserts, 40 mm thick. Can be fitted with side panels, further pull-out and fixed frames, metal covers, siding doors, roller shutters and column guard. Basic unit including 1 diagonal brace for lengthwise stability, 2 side frames, floor anchor and levelling plate set. Add-on unit including 1 side frame, floor anchor and levelling plate set. Hole spacing in the side frame every 100 mm. Specification: steel sheet. Colour: as per colour chart. Note: from the third add-on unit, an additional diagonal brace is required.