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Window Planner

Blind / Curtain Size Planner

Estimate planning sizes for blinds and curtain panels before you buy.

Curtains and blinds use different measuring ideas. This planner helps you understand coverage — but product instructions always come first.

This planner shows coverage estimates for planning. Product deductions, tolerances, and exact ordering sizes are determined by the manufacturer — always verify before ordering.
Inside mount planning note: Product manufacturers typically deduct from your measured width (often ¼" to ½") for their inside mount products. This planner shows your measured window size only — your order size comes from the product's deduction instructions.
This planner is for general sizing awareness only. Always check exact product measuring rules, mounting hardware, wall condition, cord safety, and ladder safety before ordering or installing.