Screen-printed glass with round dots (also called dot frit or ceramic frit dot matrix) is used on outdoor squash courts - especially front walls and side walls - for four critical reasons that solve unique challenges of outdoor play.
4 Key Reasons:
Birds cannot perceive solid glass. Graduated dot patterns (denser at edges, sparser in center) create a visible barrier while maintaining 70–80% transparency. Round dots are proven in avian studies to be most effective (vs. lines or squares)
Outdoor lighting + reflections make glass "invisible". Dots act as visual cues so players don't run into the wall at full speed. Frit is permanent (unlike stickers that peel in sun/rain).
Outdoor sun causes blinding glare and heat buildup. Ceramic dots block 20–40% of solar radiation (depending on density), reducing UV transmission and court temperature by 5–10℃.
Uniform round ceramic frit dots look modern and professional. Can be customized in density, size (3–10mm), and color (white, grey, or team colors) for sponsor logos or court identity without compromising transparency.
