Shademaker 11'5" Octagonal Sirius Cantilever Commercial Umbrella

For the most durable offset umbrella on the market, consider the Shademaker 11'5" Octagonal Sirius Cantilever side post umbrella. This all-aluminum umbrella is built to exacting standards to withstand moderate to strong winds when permanently affixed to a patio or deck. It is available in two canopy sizes and dozens of marine-grade outdoor fabrics that are highly fade, rot and mildew resistant. The all-aluminum construction provides maximum support for the tilting canopy that also rotates 360 degrees. Choose one of the three permanent mounts available, or select a free-standing base from the Shademaker collection. Minimum Base Weight for the 11' 5" is 450 lbs. This umbrella is great for areas with wind speeds of up to 37 mph.

All Shademaker Umbrellas include the Internal Mast stem for installation and a Fabric Protective Cover.

Due to cutting requirements, striped fabrics are only available in sets of two. Click here to view these fabrics or call the showroom for additional details.

Frame finish shown is Silver Shadow. Click here for additional frame finishes. Minimum order quantities and longer lead times may apply.

Installation Options

• CONCRETE MOUNT KIT - This kit includes a base plate, four (4) stem bolts, andone (1) allen wrench.
• IN-GROUND MOUNT KIT - This kit includes in-ground fitting.
• FREE STANDING BASE - You may opt to use a free standing base for your umbrella. Minimum Base Weight: 9' 9" - 350 lbs., 11' 5" - 450 lbs. If using a free-standing base, wind guidelines change from moderate to strong winds to light winds only. Stone weights needed for steel base frame are not included.

• Hose mast and frame with water periodically, more often if installation is in a salty or industrial environment.
• Inspect the installation fitting on a regular basis and tighten if necessary.
• Lubricate the track and slider car mechanism as needed to enhance the ease of operation. We recommend using DuPont Dry Film Lubrication products.

• Clean up spills and stains right away. Spills can be removed by using a clean absorbent cloth.
• For general maintenance, use a soft brush to remove dust and dry soil. Wash down with clean, warm water (i.e. garden hose) every so often to avoid dirt becoming engrained. Allow the fabric to air dry before closing the canopy.
• If a thorough cleaning is necessary, sponge over the fabric using a mild soap solution (2% solution). Rinse well with plenty of water to remove all soap residues.
• Never use detergents, cleaning fluids or solvents. Grease and oil stains may be removed by using turpentine or similar with an absorbent cloth.
• We recommend giving the canopy a good cleaning on a more frequent basis if installed in a location where the canopy is likely to become soiled.
• Use protective canopy cover during storage.

• While Shademaker umbrellas are made to withstand some wind - it is recommended that the umbrellas always be lowered during windy conditions. If it is too windy to enjoy your umbrella, then the umbrella should be closed. Please remove the umbrella during extreme weather conditions to avoid damage that could be caused by flying debris.
• Note: Wind damage (or any damage caused by acts of nature) is never covered under warranty.
• Sufficient base weight must be used to secure umbrellas at all times. Please see our base chart for minimum requirements for free standing base weight. Mounting your umbrella to an existing deck or patio is always the preferred method of securing your umbrella and is recommended above all other methods. We recommend a licensed contractor to secure your Shademaker umbrellas.

• Shade Coverage (sq. ft.): 103
• Diameter: 11.4'
  
• Height: 8.4
• Weight (lbs.): 74
• UPF: 50+
• Umbrella Wind Speed Max: Up to 37 mph

	Concrete Mount Kit	In-Ground Mount Kit	Titan Base	Steel Base Weights
Length	8.5”	6.3”	40.75”	36”
Width	8.5”	6.3”	40.75”	36”
Weight	9.04 lbs.	10.04 lbs	118 lbs.	Two 200 lbs. weights + One 100 lbs. weight (500 lbs. total)
Thickness	.63”	.38”	6.4”	1.8”
Extra Components Needed	―	―	Accomodates thirty two 12" x 12" concrete pavers (not included) + Adapter plate (included)	Adapter plate (included)

Shademaker Catalog
Shademaker Sirius Manual
Shademaker Mount Kits Manual
Shademaker Maintenance
Shademaker Warranty
Treasure Garden Fabric Care & Cleaning
Shademaker Product Specifications