Shape Options
Marine Windows - Choice from Channelglaze
Our marine windows range for your canal boat, barge, narrowboat or Dutch barge offers many variations in shape. Below are examples of the shapes available. Please check whether or not the frame and/or opening options are available in the shape that you require. Alternatively contact us for a chat – we seek to answer the customer’s query at every stage.
Channelglaze windows can be manufactured in a variety of sizes determined by the options available and the shape selected. The shapes displayed here are the most requested shapes and are well-known throughout the industry. If you are looking to go beyond these options, we will try our best to manufacture your custom design.
Available Radii:
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Frame
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Standard Radii
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Additional Radii…
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Single Glazed Heavy Duty
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71mm
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45mm / 55mm / 89mm
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Single Glazed Deluxe
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71mm
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105mm
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Single Glazed Swift Fit
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73.5mm
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-
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Double Glazed Deluxe
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80mm
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-
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Double Glazed Flushline
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80mm
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-
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Double Glazed Jubilee
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79mm
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-
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•
Windows, Bottom Radii (Standard)... Click here to view shape
This is the standard shape throughout the narrowboat community. With its square top corners and rounded bottom corners it has brought originality to narrowboat windows for years, as well as ensuring that narrowboats keep their traditional appearance. Although some may think that this shape has its restrictions you will be surprised to hear how versatile we have allowed ourselves to be with this shape. You and your boat can benefit from our continual investment in tooling, extrusions, and R&D.
• Windows, All Mitred... Click here to view shape
The all mitred windows originated in the hire boat side of the industry, when louvered windows were used in an attempt to make reglazing a much easier task. This was intended to speed up repairs to ensure that broken windows would not hinder any booked boating holidays. Although not considered either traditional or particularly modern, all mitred windows are still produced by Channelglaze, albeit rarely.
By their very nature, all mitred windows, have more joints to fail and are subsequently a little less common compared to that of many other shaped counterparts. Although we do not directly hear criticism of all mitred windows, some builders and owners alike believe that the number of joints can only be a downside,
due to the movement that they all windows are expected to withstand. This is not a problem that our windows have encountered, however, and it should not have an influence on your order.
• Windows, All Radii... Click here to view shape
Many boat builders’ favourite, this all radii shape offers a refreshing change to traditional methods of glazing your boat - and also adds a very aesthetically pleasing aspect to your windows. Although many would believe that this shape has more limitations than the standard shape, they would be wrong. The all radii type, as with most other shapes, is available in a variety of opening, frame, finishing and glazing options.
• Windows, Shaped...
With the high amount of shaped, bespoke projects that Channelglaze has completed to date, we believe it only fair that we continue to offer further bespoke designs. Whilst you may not see the shape that you require here, please let it be known that as long as the window’s mounting surface is flat (meaning that the window and glass will also be flat) we can generally make to order using either mitred or radii corners from templates. However, these types of window can generally use only fixed glass, making opening options for them quite limited. Whilst due to their unique natures we cannot make a price available for shaped windows, if a template is received it makes quoting a lot easier.
• Portholes, Circular (Standard)... Click here to view shape
This shape is as exactly what you’d expect from a circular porthole and is the most traditional window shape within the range. Non-opening brass portholes were developed alongside canal boats during the 19th century and were created for use within the Boatman’s cabin. During those days brass was the main material used for the frames of the portholes, today this option is still going strong with the added capability of producing aluminium portholes to match the same profile frame and colour as a boat's other windows, in a variety of sizes made to measure.
• Portholes, Elongated...
This shape is rarely utilised on narrow boats but nevertheless is an option to consider. Although these shapes have their limits on the opening options available, those customers who choose this style are pleased with the appearance these opening options provide. Full horizontal sliders and full centre hoppers are the options available in this type of shape. The majority of portholes are generally added to orders as an accompaniment to the boat's other new windows, but every now and then we fulfil a customer’s desire for a full boat set of portholes. If this is something that may interest you, please be considerate of light, since portholes do not allow as much light in as other windows on the market.
• Arched Top Windows, All Mitred (Standard)... Click here to view shape
Developed with Dutch barges in mind, the arched top windows are an extremely elegant window to have aboard any boat. If you’re looking for the best arched top windows on the market you would be extremely foolish not to come and view the quality of our range, especially compared to other entrants on the market. At present, these windows are unfortunately not available in our double glazed deluxe frame due to lack of tooling, but the remaining frames in our range have the capability to be bent into an arch - including our Double Glazed Flushline and Double Glazed Jubilee (clamping) frames. Whilst these shapes are not available in the conventional opening options, those which are available are just as high quality as the options available throughout the range. The general rule of thumb for our Arched Top Windows is to utilise a 4 inch arch from the height of the beginning of the arch to the highest point central to the arch.
This specific Arched Top Window is the standard in the Arched Top range and is mitred on all four corners of the window. The top mitres are cut off at the bottom of the arch, leaving the bottom mitres to be found in their usual place at the bottom corners of the frame.
Please allow for more time when ordering this shape of window, due to the extra time involved on the forming side of assembly.
• Arched Top Windows, Top Radii... Click here to view shape
As above only this specific Arched Top Window is the more difficult arch to produce on the forming side of the manufacturing process due to the fact that either end of the arch is then bent round to form the vertically straight sides of the frame using one length of aluminium. The bottom corners of this frame are then joined to a straight bottom frame length making the bottom corners mitred.
Please allow for more time when ordering this shape of window due to the extra time involved on the forming side of assembly.
• Arched Top Windows, Bottom Radii... Click here to view shape
As above, with the distinction that
this specific Arched Top Window combines both the arch and the bottom radii corners in one window. The difference between this window and the All Mitred Arched Top Window lies in the bottom corners of the frame. Where the all mitred windows have squared bottom corners these windows have bottom radii corners. The bottom edge of the frame is bent round to form the vertically straight sides to create a ‘U’ shaped frame very similar as that involved in our standard window shape, yet its top corners are still mitred where the arch meets the bottom frame.
Please allow for more time when ordering this shape of window, due to the extra time involved on the forming side of assembly.
• Arched Top Windows, All Radii... Click here to view shape
This Arched Top Window combines the Arched Top, Top Radii and the Arched Top, Bottom Radii windows, in that all corners of the window are radial, therefore encompassing two frames instead of just one frame and an arch. This will mean that the joints are placed on the straight sides of the windows as opposed to the mitred corners. Though not necessarily the most broadly applicable of window types, these are very nice none the less.
This shape requires a lot more forming before assembly than other Arched Tops, so please allow for more time when ordering this shape of window.
• Door Windows, All Mitred (Standard)... Click here to view shape
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The all mitred aspect of this window is the same as the All Mitred Windows, in that it has four mitred joints at all four corners of the window. It is important to note that it is very difficult for these windows to be glazed in anything other than fixed pieces of glass, and they are rarely openable.
• Door Windows, All Radii... Click here to view shape
As above, with the distinction that this door window utilises all radii corners instead of the All Mitred Door Windows - making a rarely seen, refreshing change to that of the All Mitred option. The joints will be located on the sides of the window and in this case will be decreased by two joints. The makeup will include two ‘U’ frames and will take slightly longer on the forming side of assembly, especially if it is to template.
• Door Windows, Bottom Radii... Click here to view shape
This door window combines the all mitred option and the all radii option, having two bottom radius corners and two top mitred corners. Utilising this option will mean that the door windows can match up to the similar shape of the standard shaped window. Although this option has rarely been linked with door windows, it is an option that may fit your requirements. The make-up of this door window would consist of a bottom ‘U’ frame and a straight top.
• Bulkheads, All Mitred (Standard)... Click here to view shape
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All mitred bulkhead windows are the standard shape option for bulkheads, meaning that all corners will be mitred to suit your desired degree of angle. Many boat builders like to utilise a bulkhead with a sloping top, in
order to follow the structural shape of the deck.
• Bulkheads, All Radii... Click here to view shape
As above, with the distinction that this shape has its limitations restricted by the size of the radius available and the angle to which the corners of the windows must adhere. Depending on the shape in question we generally locate the joints along the window’s sides and will fashion it of two frames. This will mean that all the corners are rounded and in addition results in this shape going hand-in-hand with our all radii windows. In short, your boat will look consistent throughout! For this shape of window we will require a template to work from and prices will be given on application.
• Bulkheads, Bottom Radii... Click here to view shape
As above, but combining both mitred and radii corners by utilising mitred top corners and radii bottom corners.