How to fit a Luca corner post


Due to the J handle profile of the Luca corner post, these corner posts come pre made as shown in the image below. These corner posts measure 70 x 70 x 22mm

Luca corner post

Should the corner post need cutting down to size then you have  two options.

(1) Cut a piece of the left and right hand sides to the desired size then use some touch up paint to repair the edges. A word of warning, you will need to use the correct blade in your saw for wood and be careful not to splinter the edges too much, placing some masking tape down the area to be sawn will help. This way of creating the Luca corner post will work but it is not the cleanest way.

(2) Cut the corner post down the middle and re mitre the post to the desired size so that any raw edges meet back in the middle and hide any mess. Again, some touch up paint may be needed to cover any imperfections left from cutting it.

To get the best effect from this Luca corner post, it is best to try and plan your kitchen so that it will use all the 70x70mm corner post.

Fitting the Luca corner post

What most people do is remove the blanking panel on the corner base unit, then attach 4 of those small white fixings (Modesty blocks, see image below) that you can get from any hardware store, to both sides of the corner post. You could also use a small angled bracket if you so wish. REMEMBER the handleless part is thinner than the rest of the door, so don’t screw through that as the screws would be seen on the other side.

Modesty block

Make sure that the screws that you use are not as deep as the corner post, so that they stay hidden and do not pierce the exposed side of the corner post.

Now, you can simply screw the corner post to the top and bottom of the inside of the corner unit. The other side of the corner post will attach to the side of another kitchen unit in the adjacent kitchen run.

Corner post with modesty blocks

This is how the corner post will look from the outside when fitted. See how the handle profile continues unbroken around the kitchen?

Completed corner post


Download our mobile app

Looking for some kitchen inspiration? Take a look at some of our real customer kitchens, video reviews as well as advice in our mobile app. We’ll also keep you up to date with any new ranges and offers that we have available.

Up to 50% off competitor kitchen prices

At DIY Kitchens, not only do you get a quality rigid built kitchen but you also get it at a fabulous price too! Price your kitchen up on our site and you could see savings  of up to 50% off other kitchen quotes that you’ve had.

Take a look at our kitchen price comparison page here.

Real customer kitchens

Get some inspiration for designing your own new kitchen with over 3,000 pictures of our customers’ kitchens that they ordered from us.

Related articles

27 thoughts on “How to fit a Luca corner post”
  • Dave says:


    Will Luca corner doors with pull out unit open OK with a 35mm x 35mm corner post as this is all the space I have. I have no problem cutting the 70mm one down.

    Also regard touch up paint. Do you sell larger amounts as I have a Bespoke shelf unit and oven canopy I am making to fit, that will need some painting?
    Or can you supply a RAL colour code or other to match as best I can?

    November 20, 2022 at 6:56 pm
    • DIY Kitchens says:

      Hi, the minimum we would recommend the corner post to be cut down to is 40mm. 35mm would not be enough to avoid the doors clashing with the next unit. We don’t unfortunately supply a larger amount than the 50ml pots of touch up paint – We recommend customers take a sample to a local hardware store such as B&Q who offer a paint matching service, if you require more than the 50ml pots. Unfortunately as all our colours are mixed in house and they’re not worldwide, We do not have a RAL code or references for these, we do apologise.

      November 21, 2022 at 3:57 pm
  • Mike I says:


    A couple of questions on the Luca corner post.

    They are described as 70mm by 22mm. I presume that 70mm is the size of the outside of the corner, and the inside corner faces are 48mm (70mm – 22mm). Is that correct?

    On the product page for the corner post (product code ILDGCP30) the illustration shows the top end of the post is square i.e. no J-profile. Is the illustration wrong, or am I looking at the wrong page for the Luca corner post?


    November 27, 2018 at 12:34 pm
    • Diy Kitchens says:

      Hi Mike, the Luca corner post measures 70mm x 70mm on the outside edges to form a right angle, the inside measurements will be 48mm. The thickness of the corner post is 22mm, to match the thickness of the doors with the J profile on top as well. The illustration needs improving 🙂

      November 27, 2018 at 12:52 pm
  • Vee says:

    Can you tell me where I can please order the touch up paint for Luca Gloss Sage?

    May 7, 2018 at 5:35 pm
    • Diy Kitchens says:

      Hi Vee, if you give our Aftersales team a call when they open at 9am on 01977 608 418 then they will be able to get some sent out to you.

      May 8, 2018 at 8:24 am
  • Lorraine Bailey says:

    Is there any likelihood of obtaining a corner post for the LUCA 900mm high corner unit.

    March 1, 2018 at 7:41 pm
    • Diy Kitchens says:

      Hi, if you have already ordered a kitchen from us and missed this off your order then you can get the sales team to send this to you. If you are placing a new order then we do have a minimum order value of £750.

      March 1, 2018 at 8:13 pm
  • N Hogan says:

    do you have a guide for fitting external corner posts? The product page shows it as a square solid unit but this would mean building a side panel out by 72 mm(?).

    December 31, 2017 at 10:14 am
    • Diy Kitchens says:

      Hi, the external corner post is a solid post, which will need to be L bracketed to the unit and also the end panel. The end panel will need to be fitted flush with the corner post, leaving a void space between the panel and the unit.

      January 4, 2018 at 1:41 pm
  • Ron Bolton says:

    How would you suggest fixing the ‘other side’ of the corner post to the next unit in the new run? As the corner unit lines up with the doors the corner of the unit must align with the the corner of the corner post. This will be a very tricky alignment not allow any gaps.

    December 17, 2017 at 7:34 pm
    • Diy Kitchens says:

      Hi, if you attach the corner post to the “other unit” first then you will need to remove the blanking panel from the corner unit then fix the corner post to the corner unit from the inside of the unit, the blank panel needs refitting behind the corner post.

      December 18, 2017 at 2:52 pm
      • Ron Bolton says:

        Sorry, but you haven’t answered my question.
        How do you attach to the other unit as there is no overlap of the corner post of the other unit?

        You have a number of kitchens displayed in your showroom. How has it been done there?

        December 18, 2017 at 3:26 pm
      • Diy Kitchens says:

        Hi, if you give our sales team a call on 01977 608 418 then they will be able to assist you further on this question.

        December 18, 2017 at 3:54 pm
  • Ron Bolton says:

    Another mistake I made. Before taking the blanking panel off, draw a line, in pencil, along the panel’s vertical edge. This line is where the corner post is to be aligned. Make sure it is NOT aligned with the edge of the centre post.

    December 17, 2017 at 7:05 pm
  • Ron Bolton says:

    Are the Modesty blocks shown in the correct position on the corner post?
    If screwed to the corner post as in the photo and then screwed to the inside base of the corner unit, won’t the corner pist be too high?

    December 17, 2017 at 2:14 pm
    • Diy Kitchens says:

      Hi, the modesty blocks shown in the picture are not attached to the corner post, they are there to give an idea of how they would be attached. The actual placement will depend on your own kitchen setup.

      December 18, 2017 at 8:27 am
  • Laurence Carr says:

    Any news on the 30x30mm wall unit corner posts? sees odd that these are not available.

    August 13, 2017 at 3:03 pm
    • Diy Kitchens says:

      Hi, non on the site at the moment and no ETA at the moment i’m afraid.

      August 13, 2017 at 8:23 pm
  • Danny says:

    When do you think it would be available? In no rush but would be good to have a rough idea. Thanks

    March 24, 2017 at 1:53 pm
    • Diy Kitchens says:

      Hi, there is no ETA yet.

      April 3, 2017 at 9:58 am
  • Danny says:

    Can you supply a 30x30mm Luca corner post for corner wall units? If not do I need to buy a door blank and mitre it?

    March 20, 2017 at 1:39 pm
    • Diy Kitchens says:

      Hi, we do not offer corner wall posts at the moment, so cutting down a 150 wide door would be the most cost effective way of making one.

      March 21, 2017 at 9:54 am
      • Danny says:

        Thanks for the reply. Are you planning to supply wall corner posts in the near future?

        March 21, 2017 at 11:05 am
      • Diy Kitchens says:

        Yes, this is something that we are looking into to add to our accessories range.

        March 21, 2017 at 12:41 pm
  • Denise says:

    Has anybody succesfully fitted a corner post between a corner unit and an angled base unit??

    December 12, 2015 at 7:36 pm
Leave A Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.