Cruise without compromise with KNOX's superior 4-Bow Bimini Mesh Enclosure, an enclosure-only upgrade exceptionally crafted to fit your existing 4-bow Bimini frame. Featuring 900D solution-dyed marine fabric, fine-weave privacy mesh panels, and a roll-up 4-side design, this enclosure delivers full cockpit shade and privacy without replacing the frame you already own. Escape the limits of an open Bimini and embrace cool, breathable comfort all season long. (Frame not included.)
KNOX's signature solution-dyed Pro Series 900D fabric is made for life on the water. Although our Bimini mesh enclosure requires minimal maintenance, a little care will keep every panel and zipper performing at its best for years of fun with family and friends.
➤ To clean your canvas panels and storage boot, use natural soap and warm water. Rinse thoroughly and air dry fully, eliminating any trace of moisture before rolling up or storing.
➤ For the mesh window panels, rinse gently with fresh water and a soft brush to remove salt, sand, and debris from the weave — avoid harsh chemicals, bleach, or pressure washers that can stretch or damage the mesh fibers.
➤ Rinse zippers with clean water every few months, followed by a coat of water-resistant silicone spray or Teflon gel to preserve smooth operation.
➤ When rolling up the side panels, secure them loosely with the hook-and-loop straps to avoid stretching the mesh or creating permanent creases along fold lines.
➤ Always store your enclosure fully dry to prevent mildew, and use the included zippered boot when the canopy is collapsed for protection during travel or off-season storage.
You may also contact one of our advisors by phone, email, or website chat for assistance.
Remember, if you take good care of your enclosure, your enclosure will take good care of you.
UV Protection
UPF 50+
Waterproof
PU Coating
Color Fastness Rating
5
Warranty
1 Year
⚠️ Enclosure Only — Frame Not Included. This product is designed to fit your existing 4-bow Bimini frame. Please confirm your frame's length and mounting width before ordering.
Sizing & Fit
Your KNOX 4-Bow Bimini Mesh Enclosure is sized to fit standard 4-bow Bimini frames. To find your size, you'll need two measurements from your existing Bimini top: mounting width (A) and canvas width (B). Match your measurements to the chart below.
Bow Count: this enclosure fits 4-bow Bimini frames only.
Length: your existing 4-bow Bimini top should measure 8 ft (96") from the front bow to the rear bow along the frame.
A – Mounting Width: measure across your boat from gunwale to gunwale at the Bimini mounting points. This is the distance between your existing Bimini's deck hinges.
B – Canvas Width: the width of the enclosure canvas itself, measured across the top.
Fit Notes:
Designed to fit standard 4-bow Bimini frames with matching length and width
Frame, support poles, and pole hardware are NOT included
If your mounting width falls right at the edge of two ranges, size up for easier installation
Fine-weave mesh panels provide shade, privacy, and airflow — ideal for warm-weather boating
For full rain and spray protection, see our 4-Bow Clear TPU Enclosure
Approximate setup time: 10 minutes
Size Chart
Bow Count
With our step-by-step installation guide, fitting your KNOX Bimini mesh enclosure onto your existing 4-bow frame is a straightforward and uncomplicated process. You'll find our user-friendly walkthrough guide included with your enclosure. You can also access it in advance via PDF format by clicking here.
Pre-Installation Tip: One important thing we recommend you do prior to installation is confirm the dimensions of your existing 4-bow Bimini frame and measure the mounting width between your deck hinges. This helps to ensure your enclosure fits cleanly and installs without any unnecessary hassle or delays.
Why Buy from KNOX.
Decide how much of your boat you want to be covered by the Bimini top. Ensure there is enough space on your boat to install the Bimini top without obstructing other equipment.
Happy Customers
Changing lives, on every adventure
Speedy Delivery
Order by 2 pm EST for same day shipping
30-Days Returns
Risk free outdoor adventure guaranteed
Roll up. Zip down. Your call.
Four independently rollable side panels let you open one, two, or all four, adjust airflow and shade without ever leaving your seat.
Built to last.
900D solution-dyed marine canvas resists UV fading, saltwater exposure, and seasonal wear, no fading, no breakdown, no compromises.
See out. Stay unseen.
See out clearly. Stay hidden inside. Fine-weave mesh delivers true daytime privacy without blocking your view.
Our brand name is inspired by Fort Knox-known historically as one of the world's most secure vaults. An iconic symbol that proudly proclaims fortress-like protection and unwavering dedication to safeguarding what matters most.
Can you ship to my location?
We currently ship to anywhere in the United States and Canada. We offer shipping via UPS, FedEx, Domestic or Priority Mail. Our system ensures that your order is shipped through the most appropriate carrier. Tracking numbers are provided with the shipment.
Are online transactions secure and reliable?
Yes, knoxcovers.com is a secure site that uses SSL technology. This guarantees the confidentiality of your information and allows you to shop with peace of mind.
I have questions about my order. Who do I contact?
If you have any questions about your order, shipping status, changes, or issues, our support team is here to help.
You can reach us by emailing support@knoxcovers.com and including your order number in the message so we can assist you as quickly as possible.
How do I track my order?
Once your order ships, you’ll receive a shipping confirmation email with your tracking number and a link to track your package in real time.
Get in Touch.
Our outdoor experts are at your disposal to answer any enquiries.
