Sliding side mount under solar panel

Split and sliding side mounts


Expand your possibilities

Our stand-offs stand out


Our unique stand-offs, both split and slide mounts, either slip over the end of tubing or clamp on by opening the hinged jaw. Originally designed for mounting solar panels, these mounts dramatically increase the possibilities for updating and adding all kinds of attachments to dodgers, biminis, davits and rails. 

Gemini Marine Products unique split jaw side mount
Gemini Marine Products unique slide mount

Slide mounts with an extensive range of uses


Crafted from 316 marine grade stainless steel, our hinged and sliding offset mounts are available for use with 7/8”, 1” and 1¼” tubing. With them you can:

  • Adding tensioning and support struts
  • Adding spreader bars
  • Attaching solar panels on your bimini top – this hardware is great for DIY solar additions
  • Attaching antennae, awnings and foldaways for cutting boards and electronics pads
  • Adding grab rails on dodgers, stanchions
  • Fixing binnacle or aft rail lines

It’s almost easier to say what you can’t do with our mounts…

Order now


Join our happy customers

4.9
4.9 out of 5 stars (based on 61 reviews)
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Read reviews or leave yours at the bottom of this page.

*REMEMBER: If you are using our 1 1/4″ mounts to connect to smaller tubing (using either 7/8″ or 1″ eye ends), you will need to drill out the hole in the top of the smaller eye ends to fit the heavy duty bolts in the top of the larger mounts. Please phone us with questions.

Hinged slide mount


No disassembly required

Unlike sliding side mounts, which must slip over the end of a tube, split jaw mounts can attach anywhere, including on frame bends, without disconnecting frame structures. This makes additions, installations, removal for storage and upgrades a breeze – even midseason.

Surf board frame on a power boat
CAD drawing of roof mount with Gemini Marine Products
Gemini offset mounts make a board frame on bot roof
Gemini Marie Products creates a board rack on a power boat 3
A sleek rooftop board rack made by our European distributor Freya Frames. Gemini Marine Products split mounts clamp on to the existing grab rails.

Sliding side mounts


A little sleeker

Our sliding side mounts are less obtrusive than our split mounts (and a little easier on the pocketbook). Great for new builds or removable installations.

Sliding side mount and associated hardware.

Ordering is quick, easy and secure


Just choose the items you need and add them to your cart.

You can even leave your cart to do more shopping then check out any time you’re ready. To return to your cart, click the box at the far right of every page (the cart box is only visible after you have added items to your cart).

You can also buy from any of our distributors if you prefer.

Hinged jaw slide mount fixed over canvas.

Review your new side mounts


Read reviews of side mounts


Very high quality

April 27, 2025

Beautiful finish and perfect fit! Ordered another set.

Sal P.

Response from Gemini Marine Products

Thank you! I’m boxing up that new order now…

Very beautiful material

February 3, 2025

Very easy to install and looks great.

Lydie P.

Response from Gemini Marine Products

We’re so glad you found it easy – even working overhead!

Will use in the spring

January 27, 2025

Too cold to use yet. Looks good.

Moira B

Response from Gemini Marine Products

Yeah way too cold here, too. We’re happy you are happy.

(Concave fork mount)

October 23, 2024

I’ve just received my rail mount and it seems to have excellent quality. I’m very happy with the purchase, customer service and speed for international shipment.

Guilherme S.

Response from Gemini Marine Products

We’re so happy to hear from you! Thank you for your interest in our products and happy sailing.

Concave post rails

August 21, 2023

Purchased 4 concave post rails to use in mounting 4 x 175 watt flexible solar panels to the Bimini frame on my 40.5 Hunter Legend. Panels will be supported by a frame of 7/8″ 316 stainless tubing joined by 90 deg corner fittings and T Fittings along the two interior rails all in 316 stainless. Used your drill guide Pro to mount the posts to the Bimini and the solar frame rails to the posts. Had to use a slightly longer bolt than one supplied with the posts to reach through the 7/8″ stainless tubing but all is secured and the panels are making power for both the 2 x 8D AGM house batteries and the AGM start battery. Thanks for the prompt service on my order delivery.

Karl W.

Response from Gemini Marine Products

You are most welcome. We’re so glad to make things a little easier for you.

Drill Steady Pro

August 21, 2023

Great piece of kit, worked as described. Great for initial hole drilling and also as a pilot hole for a larger bit if a bigger hole is required.

Karl W.

Response from Gemini Marine Products

Yeah it’s a handy little thing, isn’t it? We’re glad you like it.

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