*Please make your selection for each variant.
Base price starts with smallest size, Polymetal, & Reflective Hi-Intensity. Price will show after all variants have been selected.
| Quantity | Discount | Price |
|---|---|---|
| 3-5 | 10% | $23.47 |
| 6-9 | 12.5% | $22.82 |
| 10-24 | 15% | $22.17 |
| 25-49 | 17.5% | $21.52 |
| Qty. | 3–5 | 6–9 | 10–24 | 25–49 |
|---|---|---|---|---|
| % Off | 10% | 12.5% | 15% | 17.5% |
Please Do Not Knock On Glass Sign is the perfect solution for maintaining peace and preventing unwanted tapping or knocking. Designed by Sign Cat, this professional-grade metal sign is available in various sizes to suit your needs. Featuring clear English and Spanish text, it ensures easy readability and communication for everyone.
Crafted from high-quality aluminum, this sign is built to last. With optional reflectivity, it enhances visibility both day and night, making it ideal for storefronts, offices, aquariums, homes, and public spaces. Pre-drilled holes allow for quick installation, while the durable overlaminate protects against scratches, UV fading, and weather conditions.
Whether you’re protecting pets, preventing glass damage, or ensuring a calm environment, this long-life metal sign offers unmatched reliability. At Sign Cat, we prioritize quality materials and professional craftsmanship to guarantee customer satisfaction.
Choose the Please Do Not Knock On Glass Sign today for a clear, durable, and effective solution that lasts for years.
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Sign Cat is Your Trusted Source for High-Quality, Low-Priced Metal Signs with a Wide Range of Subject Categories to Choose From. You can also Design Your Own with Sign Cat’s Custom Sign Builder! Choose excellence with Sign Cat.
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Increase the lifespan and performance of your signs with Sign Cat’s Overlaminate.
Generally best for:
• Non-critical signage
• Commercial signage
• Walk-up signage
• Most parking lot signs
Meets and exceeds ASTM D4956 Type 1 specification, with Class-I adhesive.
Generally best for:
• Most traffic signs
• Fire/Exit signs
• Street name signs
• ADA signage
Three times brighter than EG. Guaranteed to retain at least 80% of its original specified brightness, even after IO years. Excellent for maintaining FHWA • required levels of
retroreflectivity.
Generally best for:
• The most critical situations,
i.e. dangerous intersections,
notoriously bad weather,
work zones, etc.
• School, Children, and
Pedestrian signage
The brightest sheeting available, three times brighter than High Intensity and up to ten times brighter than EG.
The highest level of retroreflectivity available, it is ideal for complex night-time conditions.
Similar Reflectivity from Varying Distances
• 500 ft. visibility range
• 7 year warranty
• 1,000 ft. visibility range
• 10 year warranty
• 500 ft. visibility range
• 7 year warranty