Triangular Double Glazed Sealed Units

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How to Order

Simply Enter the size you require in Millimetres, choose the Thickness, and then choose from a range of options tailored to this glass product. Pricing will appear above the "Add to Cart" Button.

We produce our products within industry's standard tolerance of +/- 2mm.

Pieces smaller than 250mm x 250mm are too small to Toughen.

All of our Sealed Units are Toughened as standard.

Our Double Glazed Sealed Units are suitable for both Windows and Doors. We offer many customization options to make ordering replacement sealed units as easy as possible.

Please note, this page allows you to order the Glass Sealed Unit, not the UPVC Framing.

Need a different shape?

Click here to view available Shapes.

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Delivery Info | Convert Measurements to Millimetres

Millimetres (mm)

Millimetres (mm)

Click here for a guide to measuring this shape

Select how many sealed units you require with these dimensions / options.

This is the total / overall thickness of the sealed unit to be fitted into the frame

Click here for a guide to measuring Thickness

Clear - Standard clear glass
K Coated / Softcoat - Glass with improved energy efficiency
Opti-White - Highest clarity glass available, improved energy efficiency
Texture / Patterned - Choose from a range of popular glass patterns - Check out the Textured Glass Image Gallery to see each type

This option determines the colour of the internal metal frame visible around the edges, center of the sealed unit - typically these are silver.

Clear - Standard clear glass
K Coated / Softcoat - Glass with improved energy efficiency

Argon Gas is a non-toxic, odorless gas which provides improved soundproofing and energy efficiency for your home

U Value is the measurement standard that indicates how much heat is lost through the sealed unit. The lower the value, the better the sealed unit is at keeping the heat indoors.

U Value is the measurement standard that indicates how much heat is lost through the sealed unit. The lower the value, the better the sealed unit can keep the heat indoors. Units featuring Pilkington - Softcoat Toughened glass and Argon Gas typically produce the best U Values.

All of our products are packaged in wooden containers and delivered via Courier - please select the delivery destination and service required. When ordering multiple items we recommend the same service is selected on each item to ensure your entire order is delivered together

Please Note - we dispatch orders with multiple items together when possible for convenience. We dispatch our products using a Nationwide Courier service, should they experience any delay or issue we cannot accept responsibilty for this. Should an issue occur this typically would result in delivery taking place on the following working day.
If no date is selected we will dispatch your order in 12 working days

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Other popular products available Online

If you are ready to order the product you have currently selected above but would also like to order a product below, simply click Add to Cart, then click Continue Shopping to return to this page, then choose a product below to proceed.

Coloured Splashbacks

Coloured Toughened Splashbacks suitable around heat sources. Shapes, Notches and Socket Cutouts available.

Thickness - 6mm

Maximum Size - 3200mm x 1600mm

Fixing Glue or Screws

Double Glazed Units

Order Double Glazed Units for Doors & Windows. Choose from Glass types, Spacerbar Colour & Gas Filling options.

Thickness - 14mm to 28mm

Maximum Size - 2500mm x 1000mm

Toughened - As Standard


Choose from 6mm up to 19mm Glass. Toughened for additional strength & safety. All edges are machined and polished.

Thickness - 6mm to 19mm

Maximum Size - 3200mm x 1600mm

Fixings - Not Included

Table Tops

Order a Square, Rectangular, Circular or Oval Table Top or alternatively a Table Protector for an existing table.

Thickness - 4mm to 19mm

Maximum Size - 3200mm x 1600mm

Clear Underside Pads Free


Choose a Delivery Date

Once you have selected all of the required options for your glass, our website calculates how long we need in order to manufacture the item and allows you to choose from a selection of available delivery dates.


We send all of our orders in strong wooden containers to provide the best level of protection possible. Within the packaging you will find a Handling Information sheet which includes a signed quality inspection section below.


On the working day prior to the Delivery Date you have selected, you will receive a notification directly from our courier to make you aware the order has been dispatched by Glasstops UK. On the day of delivery, you will receive another email containing Tracking Information, this will allow you to monitor the status of your delivery, and allow you to contact the courier directly should you need to make different delivery arrangements.

Taking Delivery

Smaller items can be left in a safe place or a designated neighbour by leaving a signed note of instructions for the courier to see on delivery, however this is at own risk.

Large or heavy items will require you to provide assistance to the delivery driver on the day of delivery. Due to this, a timed service is recommended (e.g. Pre 12, etc).

We can deliver to the following:

  • England / Wales / Scotland
  • Scottish Highlands
  • Northern Ireland
  • Isle of Wight

Bespoke Products

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We offer a Template, Manufacture & Fit service to ensure you get the perfect glass installation.

Online Shop

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Use our Online Shop to order made to measure glass products, delivered to your door.

Waterjet Cutting

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We now offer Waterjet Cutting for almost Any Material not just Glass.

Contact Us

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Need a question answered? Get in touch and we will be happy to help.