Harbor Master
Harbor Master-Rounded Corners
Harbor Master-Flat Front

Fabrics

The foundation of the 18oz vinyl coated fabric is a 5oz high-tenacity (strongest) polyester yarn. The top side and underside have 6.5oz of coating that provides superior tear resistance, ultra violet, and anti-fungal protection, and water tightness. All cross seams are heat welded (not sewn). Shelter-Rite 18oz will not stretch, shrink, or rot. On average cover weighs 65lbs.

The foundation of this new lightweight Shelter-Rite SLT13 is identical to the Shelter-Rite 18oz fabric except the underside coating was reformulated and reduced to 1.5oz. The fabric still maintains the same tear resistance, ultra violet and anti-fungal protection, and water tightness as SR18. All cross seams are heat welded (not sewn). SLT13 will not stretch, shrink or rot. An average cover weight of your 47lbs.

Made from solution-dyed polyester with a water resistant back coating. This fabric is engineered for superior hydros and breathability. The coating on the underside prevents abrasion while the matte, woven top gives an attractive, outward-facing look. This easy to put on/off the lift, light weight 8oz water-resistant material is a great option for anyone. 

Made from hybrid-coated polyester and is ideal for harsh manner environments because it offers exceptional resistance to abrasion while maintaining superior strength and visual appeal. Harbor-Time is a highly water repellent cloth that is resistant to both mildew and ultraviolet light. Fabric seams are heat welded (not sewn). An average cover weighs 42lbs. 

Made of solution-dyed acrylic fibers with PVC coating on one side. The PVC coating is color matched with the acrylic, thus combining the elegance of the acrylic fabric with PVC for 100% waterproof performance. The 19oz waterproof fabric makes RecWater a suitable option for extreme weather conditions. 

Harbor Master Boat Lift Canopy Replacement Guide

Replacement canopies for Harbor Master boat lifts are available at UnderTheSun Canopies across the full range of Harbor Master lift sizes and frame configurations. Harbor Master lifts cover a wide range of capacities across the Midwest, which means confirming your actual frame dimensions before ordering is the most important step. Every canopy is custom-made in the USA, ships with all mounting hardware, and is backed by a 5- or 7-year warranty.

Harbor Master Frame Design

Harbor Master lifts typically use a standard crossbar frame with the canopy top sitting over the front and rear crossbars. Frame widths and lengths vary considerably across the lineup, which is why measuring your specific lift is more reliable than assuming based on the lift’s boat capacity rating.

Key Measurements

The two numbers that matter are the side rail length (front to back along the top of the frame) and the outside width at the widest point. Most Harbor Master canopy replacements fall in the 20-26 foot range with widths from 96 to 120 inches, but sizes outside that range exist. Measure directly.

Front Style Matters

Harbor Master lifts come in both flat-front and flared-end configurations. These two styles require different canopy patterns, so it’s important to know which one you have. If you’re not certain, a photo of the front of your lift frame is the easiest way for us to confirm before we build your cover.

Attachment Method

Harbor Master lifts typically use a bungee loop attachment system with loops sewn into the bottom edges of the canopy. If your bungees are worn, we recommend replacing them at the same time as the canopy. We can include hardware with your order.

Fabric Options

All three of our fabric options work on Harbor Master lifts. HarborTime is our standard recommendation — our top pick for most boat lift applications because of its clean look, lighter weight, and durability. Shelter-Rite 18 oz is the heavier-duty vinyl choice. SLT13 is the lightest option and works well for lifts in more protected environments or seasonal use.

Getting Your Order Started

Have your frame measurements and front style ready, then contact us or order from the shop directly. If you’re not sure about measurements, we’re quick to answer by phone.