Brickbox Model Requirements 1.0.0 Every product-bearing element carries its Brickbox identifier and its base quantities. info@brickbox.ee 2026-09-07 IFCMATERIAL Pset_Brickbox BrickboxId IFCWINDOW Pset_Brickbox BrickboxId Qto_WindowBaseQuantities Height Qto_WindowBaseQuantities Width Qto_WindowBaseQuantities Area Qto_WindowBaseQuantities Perimeter