Corner base unit door & blanking panel sizes


Most kitchen designs employ the use of a standard corner base unit as shown below. These units allow you to make use of the dead space that is hidden away in the kitchen. The standard corner base unit is used to form a return run for units that butt up to it, via a corner post, to create a corner in your kitchen.

Corner base unit examples highline and drawer-line

A common question people ask is how big are the doors and blanking plates on standard corner base units. Well here is the answer.

Blanking panel

The blanking plate is always 500mm wide, no matter what size standard corner base unit that you choose. The only thing that changes, depending on the width of the corner base unit that you order are the doors. The blanking panel is made out of unit material.

Door sizes on standard corner base units

We sell standard corner base units in 4 different sizes, 900mm, 950mm, 1000mm, & 1100mm wide versions, see the image below.

Corner base unit door sizes


So for reference, here are the doors sizes for the different corner base units.

  • (NEW) An 800mm wide corner base unit has 1 x 300mm door
  • A 900mm wide corner base unit has 1 x 400mm door
  • A 950mm wide corner base unit has 1 x 450mm door
  • A 1000mm wide corner base unit has 1 x 500mm door
  • A 1100mm wide corner base unit has 1 x 600mm door

The exact height of highline doors measures 715mm

The exact height of drawerline doors measure 570mm

So, if you’re planning your kitchen and you want to have all 600mm doors for the base units then you’ll need to go for a 1100mm standard corner base unit. We do sell 100mm pan space units & 150mm pull out base units if you are having trouble filling in small gaps in your kitchen run. If the gap is less than that they you can always use some plinth made from door material to act as a filler at the end of a run that meets a wall.

Remember, all the blanking plates on these units are 500mm wide. This 500mm forms part of the depth for the return of units down the next wall. The service void that you leave at the end of the standard corner base unit gives you the rest of the space required.

Should you not require the blanking plate or just need to adjust it to push it back then this is attached to the unit with 4 screws, located inside it.


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29 thoughts on “Corner base unit door & blanking panel sizes”
  • Oliver says:

    Thanks for the reply to the question about larger service voids. Unfortunately even using the full width of the 100mm corner post (which I think will give me 160mm as a service void), I still need to increase the void as it will still foul the soil pipe. Could I create my own larger corner post perhaps out of door material (think I will need at least a 130mm post on one side to give me a 190mm service void). Alternatively, is it possible for me to buy a 350mm door (rather than the supplied 300mm) then use an 80mm corner post, in order to get a 190mm service void i need (think that adds up right) – think that will look more balanced!

    November 1, 2021 at 8:06 am
    • DIY Kitchens says:

      Hi, you could buy a door and cut it down to size to create your corner post and larger service void. Doors are 300mm or 400mm wide, there is no 350mm wide option unfortunately. As you corner post is bigger than 100mm, some people do use a 100mm wide tray space unit to make the space usable.

      November 1, 2021 at 11:42 am
  • Oliver says:

    Hi, another question sorry, if i wanted to leave a service void larger than 130mm (to void a waste pipe in the corner without the need to move to a reduced depth corner cab), can you obtain large corner posts to make up for this?

    October 29, 2021 at 9:24 pm
    • DIY Kitchens says:

      Hi, corner posts are supplied as 2 x 100mm wide pieces of material (to be cut down) that allow you to create the corner post. We recommend a 130mm service void (70mm corner post) but you can make it bigger if required. A 140mm service void would need an 80mm corner post and a 150mm service void would need a 90mm corner post and so on. The only exception to this is the Luca corner post, which is a 1 piece post.

      November 1, 2021 at 7:05 am
  • Oliver says:

    Hi, trying to make sure that our run first well and doesn’t lose some symmetry, so was wondering if you can have a corner base unit with a 350mm door?

    October 28, 2021 at 1:08 am
    • DIY Kitchens says:

      Hi, the door would be either 300mm (800mm wide base unit) or 400mm (900mm wide base unit), there is no 350mm door for this unit.

      October 28, 2021 at 8:02 am
  • John Foley says:

    Hi. If I have 900mm corner base unit, with an integrated dishwasher on the next wall, can I have a 110mm void?
    If not, can I cut the corner post down to 50mm so I can?

    June 20, 2021 at 2:06 pm
    • DIY Kitchens says:

      Hi, a 130mm service void would give a corner post of 70mm. A 110mm service void would give space for a 50mm corner posts. We do recommend a 70mm corner post but if you have a handleless door or small handles then 50mm should be OK. You just need to look at any adjacent doors (that form the corner) to see if the handles would clash against each other, when opened fully.

      June 21, 2021 at 8:14 am
  • Sophie says:

    Hello, please could you tell me what is the width of the doors on the L-shaped corner base unit? I want to balance out the other side with the same width door but I am torn between 300mm and 350mm. Thank you 🙂

    May 18, 2021 at 3:01 pm
    • DIY Kitchens says:

      Hi, the doors on a 900 x 900 l-shaped corner base unit are a 2 piece door and they measure 315mm wide each. If you are wanting to match the units above then we recommend a 600mm x 600mm wall unit then 2 x 300mm units on each end to balance it. The last image on this page illustrates this.

      If you were to have a 300mm base unit next to the l-shaped corner base unit then you could use on the wall, either a 300mm wide wall unit or a 600mm wide double wall unit, which uses 2 x 300mm doors.

      May 18, 2021 at 3:34 pm
  • Lan says:

    Are the corner posts removable from the corner units? I want to replace with flat filler plates instead to tailor fit to layout

    February 4, 2020 at 4:11 pm
    • Diy Kitchens says:

      Hi Lan, corner posts come as a separate item and are attached after the unit is in position, so you can easily use whatever material you want and create your own.

      February 5, 2020 at 10:25 am
  • Aziz says:

    HI, I have a long run. At the beginning of the run, I have a fridge opening towards the wall. I have allocated a 50mm filler piece so the fridge door can open to a decent amount.
    If I use a 50mm filler piece, on the other end, the service void ends up being 110mm on a corner carousel unit. Could I get away with this, will the carousel unit still fully come out? What size corner post would I need?

    What about 40mm filler for the fridge, and 120mm for the void space? Would it still work? What would the corner post need to be?

    September 8, 2018 at 11:10 pm
    • Diy Kitchens says:

      Hi Aziz, depending on what range you are going for (any range but Luca), you can cut the corner post down to 50mm to allow for the 110mm void or 60mm to allow for the 120mm void. This will not affect the opening of the carousel and will allow for you to have your 50/40mm filler down the side of the fridge.

      September 10, 2018 at 9:34 am
      • Aziz says:

        Thanks, I’m going for either Clayton or Linwood

        September 10, 2018 at 9:38 am
  • mark stocks says:

    hi, can the blanking plate be covered in the unit material thanks mark

    August 2, 2018 at 10:45 pm
    • Diy Kitchens says:

      Hi Mark, the blanking plates on corner units are made from unit material. If you need any panels in door material then you would need to order extra doors or end panels.

      August 3, 2018 at 9:48 am
  • Jason says:

    Is the blanking plate made of door or unit material?

    March 6, 2018 at 1:16 pm
    • Diy Kitchens says:

      Hi Jason, the blanking plate is made from unit material.

      March 6, 2018 at 1:35 pm
  • Mick Cox says:

    Hi, do all your corner base units come with the option of a door on the right hand side, rather than on the left? Cannot seem to find this option on your site…

    March 21, 2017 at 7:53 pm
    • Diy Kitchens says:

      Hi, choose the blanking plate option on the units page. Blank panel left with give you a door on the right. Blank panel right will give you a door on the left.

      March 22, 2017 at 11:04 am
  • Emily says:

    Hi, I cant seam to find the 1700mm corner unit on your website, would you be able to provide me a link to go to the correct unit?

    September 6, 2016 at 4:27 pm
    • Diy Kitchens says:

      Hi, apologies but we no longer have this unit on our website as it was recently discontinued due to low demand. This page has now been updated.

      September 7, 2016 at 10:44 am
  • alison chapman says:

    Can I ask about the void in the pictures above… I thought they had to be 130 but these are 100. Can they be either? Thanks

    June 10, 2016 at 10:31 am
    • Diy Kitchens says:

      Hi, 100mm was the old guide but we now recommend 130mm to avoid any clashing of handles and doors. 130mm for a service void gap will give you a 70mm corner post. I will get the images updated.

      June 10, 2016 at 11:50 am
  • Tarryn says:

    I currently have a space of 1008 which has a corner cupboard in with a 500 door.
    I would like to put a le mans unit in there. Could I fit a 1000 or would it have to be a 900. Would it also require a corner post?
    A wine rack will be fitted at the side against the blanking panel.
    Many thanks.

    February 19, 2016 at 3:43 pm
    • Diy Kitchens says:

      Hi, ideally you would use a 900mm corner unit so that you still get your service void. You would also need a corner post and the wine rack would then butt up to that, so that you get a nice tidy corner.

      February 19, 2016 at 3:59 pm
  • Becky says:

    Hi, I require a left corner base unit that will sit next to my washing machine. However my gas metre and pipes are located on the wall inside the cabinet on left side. I need a unit that is 1020mm overall length to finish behind the gas unit (so the gas unit is housed inside the cabinet), but I require the same configuration as a 900mm cabinet with a 400mm door due to the location of the washing machine. Is it possible to have a custom made cabinet?
    Many thanks

    October 11, 2015 at 10:36 pm
    • Diy Kitchens says:

      Hi, the best thing to do would be do give the technical sales team a call on 01977 608 418 and they will be able to see if it is possible.

      October 12, 2015 at 8:56 am
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