A question that we were recently asked regarding a kitchen mantle was, “I want to use the following setup.
- 2120mm tall unit (with legs)
- 720mm high wall unit
- 1210mm high kitchen mantle
- 720mm high wall unit
- 2120mm tall unit (with legs)
But, the top of the kitchen mantle will be out of alignment by 10mm as my worktop is 30mm thick quartz. Can you advise on how to get all this to line up?”
The best solution
Well, the kitchen mantle is designed to work with 2120mm tall units, 720mm wall/base units and a 40mm thick worktop.
See the image below that shows the 2120mm measurement required for everything to line up with a 1210mm high mantle.
These measurements below all add up to 2120mm, the same as the tall unit wanting to be used.
- 150mm legs on the base unit
- 720mm base units
- 40mm worktop
- 1210mm kitchen mantle
But, as the customer’s worktop is thinner (30mm thick), the other 10mm will need to be achieved by raising the mantle or by placing a thin piece of colour matching filler at the top.
No tall units solution
If no tall units are being used in the kitchen run, then you can simply lower the wall units by 10mm to get the mantle to line up correctly.
Custom size kitchen mantle
If you require a custom size mantle then we can make the mantle higher or wider (only in 100mm increments) but you will have to add a note to the order advising the height, for every 100mm there is a £100 surcharge.
Installed kitchen mantles in people’s homes
Take a look at the images below to see how a kitchen mantle could look in your home.
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 4,000 pictures of our customers’ kitchens that they ordered from us.











Thank you so much for the quick reply, I can’t thank DIY Kitchens enough for the help and advice you’ve provided us on this project. I hope you can clear one more question on the mantle fitting before I order the canopy extractor for the kitchen fitter. I can see there is about 415mm from the apex of the curve to the top of the mantle; does this mean the shelf you cut and attach the extractor to is designed so that the fitter can fix it at different heights? (creating a bigger void in the top section and allowing you to vary the height of the canopy extractor above the cooker) Apologies, if this is a really daft question.
October 30, 2025 at 8:48 amHi Paul, from worktop level to the underside of the shelf / where extractor would sit, it’s approximately 920mm. The shelf is fixed though, so you would just cut the hole out for where the extractor sits, not remove and reposition the full shelf.
October 31, 2025 at 11:43 amWhen fitting a canopy extractor to the mantle I assume there is limited height clearance inside. Are they any extractors you can recommend that are the easiest to fit in this space? We were hoping to duct/vent outside but I cannot imagine this is possible without cutting into the top of the unit to accommodate rear ducted extractors
October 27, 2025 at 9:15 amHi Paul, if using a 1210mm mantle, you have a space of 415mm from the curve to the top section, if a 1390mm high mantle is being used, you have a space of 685mm from the curve to the top section.
October 29, 2025 at 10:32 amThe underside of the mantle will need to be cut into, to allow the extractor to be installed, if you want to vent out then yes, the back or top of the mantle will need to be cut into, depending on where the appliance vents out. Canopy hoods are best suited to the mantles.
On the underneath of the mantel can you get a panel that a extractor fan can be fitted around?
March 11, 2025 at 2:53 pmHi Diane, The mantle units already have a panel underneath, this is in the same colour and finish as the doors.
March 12, 2025 at 11:46 amDo mantles require end panels if they have 300mm deep cupboards either side of them?
April 21, 2024 at 2:31 pmHi Ian, mantles don’t require end panels as they’re supplied entirely in the door material & colour.
April 22, 2024 at 4:48 pmWhat is the ideal range cooker size under your standard mantles ? I am hoping to use a 900mm range
January 28, 2023 at 8:27 amHi, the internal width of our mantles is 1200mm and the 2 x 300mm wide usable units, each side of the mantle, will sit on your worktop. A 900mm range cooker would work absolutely fine.
January 31, 2023 at 6:28 amHello I am wondering on any suggestions to good extractors that fit underneath the mantle please
January 17, 2023 at 7:51 pmHi, you would need a canopy extractor, available here.
January 18, 2023 at 9:51 amHi ! Can we purchase just the mantel from you, even if we buy a kitchen from elsewhere? Thanks!
September 14, 2022 at 9:42 amHi, yes this is fine, if it is over the £750 minimum order limit.
September 14, 2022 at 1:54 pmHi
We would like to position a mantle over our 1000mm cooker, but do not have room on the worktop for the 300mm cupboards either side. Is it possible to order just the top section of the mantle including arch, shelf and cornice so it can act as a bridge between abutting wall cupboards above the cooker?
April 5, 2021 at 4:14 pmHi, i’m afraid our mantle is a 1 piece unit. If you contact our sales team on 01977 608 418 then they would be able to advise if there are ant workarounds?
April 6, 2021 at 8:23 amHow is the mantle secured to the wall?
May 22, 2020 at 9:53 amHi Justin, you would need to use L brackets to fix the mantle to the wall, at the top.
May 26, 2020 at 6:46 amHi there,
We have purchased the DIY Kitchen mantle and have had it made 200mm wider and 200mm higher. We are wanting to put a mirrored splashback in. I believe the width of the splashback should be 1400mm, but could we ask what would be the most appropriate height would be (as you wouldn’t want people to see the wall above the splashback when you’re cooking)?
Also, are we correct that it’s best to install the mantle first and then the splashback?
Thank you,
Jack
May 6, 2020 at 2:56 pmHi Jack, the internal dimensions of your mantle will be; 1400mm in width as you previously mentioned. However, the internal height remains the same as a standard mantle at 905mm. I would advise the splashback to be fitted first, as the internal height at the front of the mantle is smaller at 705mm.
May 7, 2020 at 3:53 pmWhat are the internal measurements of the Harewood mantle, so that I know how big my splashback needs to be be?
June 12, 2019 at 9:30 amHi, the internal measurements of the Harewood mantle are 1200mm wide x 900mm tall.
June 12, 2019 at 9:31 amIn desparate need of some advice please.
Have recently purchased a new kitchen and would like to buy a ready made mantel to fit in and around. Some questions, sorry.
Do ready made mantels come in standard sizes?
Cost?
Do you provide fitting?
Would the mantel accommodate an extractor fan?
Sorry working on a tight deadline so any advice would be extremely welcome.
November 5, 2018 at 5:54 pmHi Rob,
The dimensions of the mantle are 1800mm wide and 1200mm for the internal width of the mantle as there are 2 x 300mm units either side built into it. The sales team can amend the width of the mantle in 100mm increments but it would incur a surcharge of £100 per 100mm change.
The underside of a mantle is hollow to allow you to install a canopy extractor.
The standard mantle on our website in Linwood Oak is £974.98.
We are a supply only company and only deliver the items to your home, we do not do any fitting I’m afraid.
November 6, 2018 at 9:09 amCan you make narrower mantles?
July 23, 2018 at 11:54 amHi Paul, yes, we are able to do this on request. Please just add this to the note on the item in your basket.
July 23, 2018 at 11:55 am(Q) We have an existing fireplace which will be hollowed to take a range oven. The width of the firestack is 1500mm and depth is 380mm. Because the mantle is 1800mm wide I wonder whether it is possible to cut out the back of the mantle so it “wraps around” the existing firestack?
June 22, 2018 at 7:45 amHi Matt, the mantle is 1800mm overall but the internal dimension is only 1200mm as the two units either side are 300mm wide so this would not be wide enough to cover the chimney that you have.
You may wish to look at using pan drawer frontals to create a mock mantle framing –
For example 2 x 800 x 283/355 drawer fronts for top panel = 1600mm
2 x 800/900/1000 x 283/355 pan drawer fronts for side panels depending on how high you want the mantle top section to sit
June 25, 2018 at 6:59 am(Q) On the underside of the mantle, is it a solid piece of wood or hollow where I’d put the extractor fan?
June 14, 2018 at 11:42 amHi, The underside of a mantle is hollow for extractors.
June 14, 2018 at 11:44 amYou could also raise base units by 10mm and make your own 160mm plinths using filler / end panels.
April 10, 2018 at 6:07 pm