SmallSpaceGlow Curtain Size Calculator

SmallSpaceGlow Curtain Size Calculator helps your visitors figure out exactly what they need before buying curtains or rods. Add it anywhere via a shortcode or Gutenberg block.

Stop guessing. Get it right the first time.

Choosing the wrong curtain size is one of the most common and costly home décor mistakes. SmallSpaceGlow Curtain Size Calculator gives your visitors a professional-grade tool right on your website to calculate exactly what they need before they buy.
Whether they are measuring for floor-length drapes, a puddle style, or a near-ceiling mount, this calculator walks them through every decision: panel length, fabric width, rod size, bracket positions, and ring or grommet count all in seconds.

🔗 Curtain Size Calculator Preview

Features:

• Calculates finished panel length, total fabric width, and recommended panel count
• Supports inches and centimetres
• Multiple mount strategies: Standard or Near-Ceiling
• Seven length styles: Sill, Apron, Floor, Kiss, Break, Puddle 6″, Puddle 10″
• Three header/fullness styles: Grommet, Rod Pocket, Pinch Pleat
• Adjustable fullness multiplier
• Stack-back by percentage or fixed measurement
• Rod length, rod diameter, and bracket positioning recommendations
• Ring/grommet count estimate
• Export results as a .txt file
• Email results directly to the visitor (uses wp_mail)
• Gutenberg block + classic shortcode [ssg_curtain_calculator]
• Responsive — works on mobile and desktop