Accepted sources
Preferred sources include curtain and drapery manufacturers, track and heading-system manufacturers, fabric suppliers, established workrooms, product specification sheets, and major retailers’ current product dimensions.
How disagreements are handled
Curtain guidance often differs because the product, region, fabric, and heading differ. We show the range and explain the context instead of averaging incompatible recommendations.
No borrowed assets
We do not copy another publisher’s prose, charts, room photography, fabric patterns, diagrams, or calculator code. Site diagrams, worksheet graphics, calculator logic, and social imagery are original.