Feature-by-feature comparison
| Feature | SWB | John Sterling |
|---|---|---|
| Brand heritage | SWB — modern engineering, 2020+ | Knape & Vogt, est. 1931, Michigan |
| Adjustable sizing | ✅ Telescopic + modular | ❌ Fixed sizes (multiple SKUs) |
| Height range | 35"–65" telescopic | Fixed: 17"–60" (5+ SKUs) |
| Width range | Unlimited modular (16"/module) | Fixed: 17"–44" (5+ SKUs) |
| ASTM F2090 integrated | ✅ Model A/EXIT | ❌ Separate add-on kit |
| Fire code compliant for bedrooms | ✅ Yes (A/EXIT) | ⚠️ Only with add-on |
| Wall mount available | ✅ All models | ✅ Available |
| Frame mount available | ✅ Model A, A/EXIT | ✅ Available |
| DIY installation | ✅ 15-30 min | ✅ 20-45 min |
| Steel finish | Galvanized + powder coat | Powder coat |
| Made in USA | ✅ | ✅ |
| Warranty | 1-year limited | Limited warranty |
| Price range | $99–$179/module | $25–$80/bar (multiple bars per window) |
| Cost per window installed avg | ~$249 | ~$120-$240 (varies by # bars needed) |
| Available at | SWB Direct + Amazon | Home Depot, Lowe's, Ace, Amazon |
Which should you choose?
Choose SWB if:
- You have non-standard window sizes (most homes do)
- You need ASTM F2090 quick-release on bedroom windows (required by IBC 2021)
- You want one product line covering most of your windows (vs buying 4-5 different SKUs)
- You prefer direct-to-consumer support over retail-chain returns
Choose John Sterling if:
- Your windows happen to match their fixed sizes exactly (17", 27", 36", 44" widths)
- You prefer to buy in-store at Home Depot/Lowe's vs online
- You don't need quick-release on bedrooms (commercial-only application)
- You're working with a tight budget on a single window (their 17" bar is cheapest entry)
About John Sterling
John Sterling is a window-hardware brand owned by Knape & Vogt Manufacturing Company (Grand Rapids, MI), in business since 1898. The window security bar line dates to the 1960s as urban crime concerns rose. K&V also manufactures shelving hardware, drawer slides, and storage solutions.
Sterling bars are made in USA, distributed through Home Depot, Lowe's, Ace Hardware, and Amazon. They emphasize traditional fixed-width designs that fit specific window sizes — homeowners typically buy 1-2 bars per window stacked or side-by-side.
The product line lacks integrated ASTM F2090 quick-release. Their workaround is a separate "emergency egress" kit sold as an accessory — adds cost, complexity, and an installation step many DIY homeowners skip.
Why SWB exists
SWB launched in 2020 to solve the two problems Sterling and similar legacy brands didn't address:
- Adjustability: US window sizes vary enormously. A telescopic+modular design eliminates the SKU explosion problem.
- Integrated code compliance: ASTM F2090 quick-release built into Model A/EXIT as a single product — no accessory kit, no install gotcha.
We also designed direct-to-consumer support: a US-based sales team, 30-day returns, free shipping over $250, and dedicated compliance docs for fire marshals and HOA boards.