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Cutting Rectangular Socket Hole in 4mm Tempered Glass with Splashback Print

bumble 19671 20
Best answers

How can I cut a rectangular socket hole in 4 mm tempered glass splashback after it has been tempered?

You cannot cut a rectangular socket hole in 4 mm tempered glass after tempering; any cutting, milling, waterjet, or laser work will make the pane break or fail later [#18337263][#18337247] Holes in tempered glass are made before the tempering process, so a manual milling machine is not a workable fix and will likely just shatter the glass into hexagons [#18337257][#18340934] The practical solution is to order the splashback already made with the socket opening, or change the socket location instead of machining the finished panel [#18340934]
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  • #1 18337227
    bumble
    Level 40  
    How to cut a rectangular hole in tempered glass with the so-called splashback print under the socket. 4mm glass.
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  • #2 18337247
    anchilos
    Level 39  
    Is it tempered?
    If tempered - no way.
  • #3 18337252
    bumble
    Level 40  
    Yes. I already corrected. It is tempered glass. So how do they do it because some offer it with a hole. They charge ?12 per hole. They make it before tempering? And a small manual milling machine and high revolutions will not cope.
  • #4 18337257
    anchilos
    Level 39  
    bumble wrote:
    They make it before tempering?

    Yes.
    bumble wrote:
    manual milling machine and high revolutions will not cope.


    He can do it, only the glass will break into hexagons.
  • Helpful post
    #5 18337263
    MARCIN.SLASK
    Home appliances specialist
    Tempered glass can no longer be processed (even water or laser cutting will affect the structure of the whole - it will fall apart immediately or in a short time).
  • #6 18337267
    anchilos
    Level 39  
    There is probably a possibility of forgiveness.
    But is it profitable?
  • #7 18337297
    bumble
    Level 40  
    Oh well. I will order with holes as soon as possible and if there are wall-mounted sockets from the bottom of the furniture hanging in the kitchen.

    Added after 2 [minutes]:

    I'll tell you why I'm asking. If I order a given size, e.g. in three parts with one higher part with one print on the whole, it is not a problem to order with a hole. However, if he buys a finished product with a pattern that is not part of the drawing with standard dimensions, then they are without a hole and cannot be ordered for the price by pol.
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  • #8 18338293
    saskia
    Level 39  
    I read your other posts with questions and I have the impression that you want to make a Christmas tree out of the kitchen.
    Will you or your wife (if you are married) last long in such a kitchen?
    The kitchen is the place where you practically spend the most active time at home and you won't last long with such a Christmas tree, even for the next holidays.
  • #9 18338389
    bumble
    Level 40  
    There's no chance of getting anything done on time for the upcoming holidays. It won't be a Christmas tree. Instead of old tiles on the walls, modern glass splashbacks and new countertops.
  • #10 18339936
    saskia
    Level 39  
    I hope you don't misunderstand me. :-)
    I am old-fashioned and although I got to know many new and interesting technologies and effects, I am still drawn to traditional interiors. Anyway, the very fact that I am passionate about restoring, repairing and conserving antiques and artifacts also proves that I prefer traditional and proven effects.
    I could give you step by step instructions on how to do it. special effects on old furniture, but you probably won't be interested, because as I see you are going towards the latest solutions.
    Nevertheless, these so-called special effects are all the rage these days.
  • #11 18339983
    bumble
    Level 40  
    The option of sockets is under the hanging cabinets as surface-mounted. The plinths are quite high and the sockets will not be visible, especially the shallow ones are probably an inch high. Well, I might add one or two. appliances such as a toaster, kettle, microwave are plugged in all the time. I will consider this from a practical point of view. If I turn the socket so that the cable from the plug comes out towards the wall, I get that the cable runs down the wall. But because we finally give up the glass across the entire width because the dimension is non-standard for a height of 470mm and glass in this dimension is 30% more expensive than the height of 500mm, so a laminated board will go for the spalshback. So perhaps there will be sockets in it or as I wrote under the cabinets.
  • #12 18340025
    saskia
    Level 39  
    Solutions can be different, and sockets in different places and differently finished.
    You can place the sockets in one place, for example, 2-3 one below the other on the vertical strip of the board, and next to it, put the glass only shorter by the width of the vertical plate with sockets. Such plates can also be a kind of break or contrast in the entire continuity of glass under the cabinets.
    You can also install the sockets in the wall and cover them with such bands of a plate mounted on hinges and closed, so-called. push latches so that you will not see the sockets, only the cables going under this plate-door.
    Don't forget to continue the electrical circuit ring (double sided feed) when switching or adding outlets, as kitchen appliances consume a lot of power and cables can get hot if the ring is broken and one sided feed is left, which can cause a fire, especially when outlets and junction boxes are plastic and mounted on wood or board.
  • #13 18340200
    bumble
    Level 40  
    The electrical installation had been renovated earlier. I have already replaced one socket from a regular one with a socket with USB sockets and there is one cable, so there is no ring.
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  • #14 18340278
    retrofood
    VIP Meritorious for electroda.pl
    saskia wrote:

    Don't forget to continue the electrical circuit ring (double sided feed) when switching or adding outlets, as kitchen appliances consume a lot of power and cables can get hot if the ring is broken and one sided feed is left, which can cause a fire, especially when outlets and junction boxes are plastic and mounted on wood or board.

    You can get a warning for such advice in Poland. Don't move British rings to Polish soil because it's like trying to get two taps above the sink, each with different water. And start writing in Polish, because you used to be able to, and now you pretend to be able to otherwise.
  • #15 18340295
    miroslaw wielki
    Conditionally unlocked
    Three years ago, a friend replaced the windows and I brought the glass from these windows, i.e. packages. I took them apart to put them in the gazebo. And zonk. I didn't see that they had bespo subtitles. And with my son we tried to cut. Ok, the diamond scratched but when I knocked the knife in the scratch, the processing ended. Your windows will come out the same way.
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  • #16 18340423
    saskia
    Level 39  
    retrofood wrote:
    saskia wrote:

    Don't forget to continue the electrical circuit ring (double sided feed) when switching or adding outlets, as kitchen appliances consume a lot of power and cables can get hot if the ring is broken and one sided feed is left, which can cause a fire, especially when outlets and junction boxes are plastic and mounted on wood or board.

    You can get a warning for such advice in Poland. Don't move British rings to Polish soil because it's like trying to get two taps above the sink, each with different water. And start writing in Polish, because you used to be able to, and now you pretend to be able to otherwise.


    The author of the topic is in Plymouth, which is in the UK. So that's the best advice for the country you live in.

    As for my writing, it was probably explained a few years ago.
    Besides, I don't enjoy typing when I can barely see the keyboard through the cataract, and I'll probably stop typing soon.
  • #17 18340562
    retrofood
    VIP Meritorious for electroda.pl
    saskia wrote:

    The author of the topic is in Plymouth, which is in the UK. So that's the best advice for the country you live in.

    Sorry, I didn't pay attention. Sorry.
  • #18 18340837
    adversus
    Level 32  
    retrofood wrote:
    You can get a warning for such advice in Poland. Don't move British rings to Polish soil because it's like trying to get two taps above the sink, each with different water.


    And what kind of transfer is this ... I was surprised recently at the client's when it turned out that each circuit of the sockets in the rooms was on a separate ring. Is this something incompatible with our art??? Because maybe I don't know something?
    And the house. Not so new (that an electrician would do after returning from the islands out of habit) because it is over 20 years old, i.e. before the great emigration to the UK.
  • #19 18340932
    retrofood
    VIP Meritorious for electroda.pl
    adversus wrote:
    Because maybe I don't know something?
    You do not know. But that's not the topic. And not here.
  • #20 18340934
    bumble
    Level 40  
    Greater reliability. Higher load capacity because in the ring at the point there is a cross-section of the wire x2. Hence, a greater protection of the circuit is possible. Although the sockets have 13A, it is significant for two sockets. There is no limitation for one circuit cannot be more than 2KW. Is there such a rule in Poland?

    Added after 1 [minutes]:

    I checked more closely and all the holes in the glass are made before tempering. It is not physically possible to make a hole after hardening.

    Added after 1 [minutes]:

    It remains to order a panel with holes for sockets, or as I wrote when buying standard panels of standard sizes, the location of sockets under wall-mounted cabinets. Well these are pretty thin.
  • #21 18340956
    retrofood
    VIP Meritorious for electroda.pl
    bumble wrote:
    Greater reliability. Higher load capacity because in the ring at the point there is a cross-section of the wire x2. Hence, a greater protection of the circuit is possible. Although the sockets have 13A, it is significant for two sockets. There is no limitation for one circuit cannot be more than 2KW. Is there such a rule in Poland?

    Is. You cannot compare British installations to Polish installations at all. The mains power supply is solved differently, the installations are carried out differently. In England there are rings, because the sockets have their own protection. And in Poland, atmospheric discharges can induce a voltage of hundreds of thousands of volts in such a ring!
    Effects of lightning discharges

Topic summary

✨ Cutting a rectangular hole in 4mm tempered glass is not feasible post-tempering due to the risk of structural failure. Responses indicate that any holes must be made before the glass is tempered, as attempts to cut after tempering will lead to breakage. Some manufacturers offer tempered glass with pre-cut holes for a fee, suggesting that this is a common practice. The discussion also touches on practical considerations for socket placement in kitchen designs, emphasizing the importance of planning for electrical installations and the potential for aesthetic solutions that integrate sockets with cabinetry.
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FAQ

TL;DR: For tempered splashbacks, plan cutouts pre‑temper—13 A sockets are typical, and "It is not physically possible to make a hole after hardening." Order panels with factory holes or place outlets under cabinets. [Elektroda, bumble, post #18340934]

Why it matters: This helps DIYers and kitchen renovators avoid shattering glass, extra costs, and unsafe electrical changes.

Quick Facts

Can I cut a rectangular hole in 4 mm tempered glass splashback at home?

No. Tempered glass cannot be processed after hardening. Cutting, drilling, or grinding disturbs stress and causes failure. “Tempered glass can no longer be processed,” even by waterjet or laser. It may fall apart immediately or shortly afterward. Order factory cutouts before tempering. [Elektroda, MARCIN.SLASK, post #18337263]

How do manufacturers get socket cutouts in tempered splashbacks?

They machine all holes and notches before the glass goes into the tempering furnace. After tempering, any attempt to cut causes shattering. As one expert put it, it will “break into hexagons.” Specify all cutouts before the tempering stage. [Elektroda, anchilos, post #18337257]

Will waterjet or laser cutting work on tempered glass after tempering?

No. Those methods still disturb the tempered surface compression. The sheet fails during or after the cut. “Even water or laser cutting will affect the structure of the whole.” Order holes before tempering to keep the pane intact. [Elektroda, MARCIN.SLASK, post #18337263]

Can a small high‑RPM rotary tool or manual mill make the hole?

No. Local grinding collapses the stress balance in tempered glass. The pane fractures into small pieces. An expert warned it will “break into hexagons.” Replace the panel or order a new one with factory cutouts. [Elektroda, anchilos, post #18337257]

Is de‑tempering or annealing tempered glass viable to add a cutout?

Annealing (“forgiving”) is a theoretical path, but its value is doubtful for splashbacks. As one pro noted, “There is probably a possibility of forgiveness. But is it profitable?” Shop around and compare with a new pre‑cut panel. [Elektroda, anchilos, post #18337267]

I bought a standard‑size printed panel. Can the shop add socket holes later?

No. Stock printed panels are supplied without holes and at set prices. Suppliers provide holes only before tempering on made‑to‑order panels. Standard models typically cannot be modified at the same price. [Elektroda, bumble, post #18337297]

What are practical alternatives if I can’t cut holes in the glass?

Mount outlets on a vertical board strip and stop the glass short of that strip. Or place sockets in the wall and hide them with hinged board bands on push latches. These solutions keep the glass intact and the look clean. [Elektroda, saskia, post #18340025]

How should I plan socket layout to avoid cutting the splashback?

Use this simple plan:
  1. Choose under‑cabinet or vertical board‑mounted sockets to keep the glass uncut.
  2. If relocating, continue the ring circuit where used to keep double‑sided feed.
  3. Add push‑latch covers if you want sockets hidden. These options preserve function and aesthetics. [Elektroda, saskia, post #18340025]

How much does a socket cutout cost when ordering glass?

A user reported a shop price of about £12 per hole. Ask for a written quote that includes all cutouts and the tempering step. This avoids surprises after printing and hardening. [Elektroda, bumble, post #18337252]

Why did my scored‑and‑snap attempt on safety glass explode?

Safety/tempered glass stores internal tension. Scoring does not relieve it. When you try to snap the pane, it disintegrates. One user scratched a line, tapped the score, and the processing ended in breakup. Tempered glass behaves this way by design. [Elektroda, miroslaw wielki, post #18340295]

If I’m in the UK, do I need to keep the ring circuit when moving sockets?

Yes. Maintain ring continuity when altering outlets on British ring circuits. Kitchen loads are high, and a broken ring can overheat conductors. Continue the double‑sided feed when adding or changing sockets. [Elektroda, saskia, post #18340025]

Is ring‑circuit advice valid in Poland?

No. Polish installations differ from UK practice. A moderator warned not to transplant British ring guidance to Polish systems. Follow local standards to ensure safety and compliance. [Elektroda, retrofood, post #18340278]

What happens if I try to grind a small notch on a tempered edge?

The tempered layer gets disturbed and can fail during work or later. As noted, it may “fall apart immediately or in a short time.” Avoid any post‑temper edge tweaks. Replace or reorder with proper notches. [Elektroda, MARCIN.SLASK, post #18337263]

My wall height is non‑standard (e.g., 470 mm); what’s a budget‑friendly approach?

Use a laminated board splashback if custom glass gets pricey. One renovator found 470 mm glass cost 30% more than 500 mm. They chose a board and moved sockets under cabinets to control cost and visibility. [Elektroda, bumble, post #18339983]

Will under‑cabinet surface‑mounted sockets stay discreet?

Yes. With higher plinths and shallow units, under‑cabinet sockets are largely hidden. Rotating sockets so cables exit toward the wall keeps leads neat down the backsplash. [Elektroda, bumble, post #18339983]
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