"Knock Knock Who's There" Unisex classic tee

Knock, Knock… Who’s There? A Perfect Shirt for Door Hardware Pros!

This hilarious door hardware-themed T-shirt is perfect for locksmiths, hardware consultants, architects, and industry insiders who know the struggle of proper installations! Featuring a clever knock-knock joke on the front and punchline on the back, it’s the ultimate conversation starter.

✔ Premium Comfort – Made from soft, breathable fabric for all-day wear.
✔ Funny & Relatable – Perfect for trade shows, job sites, or casual outings.
✔ Industry Humor – Ideal for door hardware professionals who deal with locks, panic bars, and ADA compliance!
✔ Durable Print – High-quality graphics that won’t fade after washing.

🔑 Get yours today and open the door to some laughs! 🚪😂

The 100% cotton unisex classic tee will help you land a more structured look. It sits nicely, maintains sharp lines around the edges, and goes perfectly with layered streetwear outfits. Plus, it's extra trendy now!

• 100% cotton
• Sport Grey is 90% cotton, 10% polyester
• Ash Grey is 99% cotton, 1% polyester
• Heather colors are 50% cotton, 50% polyester
• Fabric weight: 5.0–5.3 oz/yd² (170-180 g/m²)
• Open-end yarn
• Tubular fabric
• Taped neck and shoulders
• Double seam at sleeves and bottom hem
• Blank product sourced from Honduras, Nicaragua, Haiti, Dominican Republic, Bangladesh, Mexico

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size guide