If you’ve been exploring granite worktops for your kitchen renovation, you’ve probably come across a debate that pops up time and time again. Here, the question is whether to choose a 20mm or a 30mm thick slab. At first glance, the difference might seem minor. However, in reality, thickness can influence durability, aesthetics, installation and even cost. Therefore, you must look into the details before choosing granite kitchen worktops.
Granite worktop thickness and its impact
The case for 30mm granite worktops
There’s a reason 30mm granite has become the standard in many modern homes. It offers a chunky, high-end appearance that instantly elevates the space. It’s not just about looks either. 30mm granite naturally has greater strength, which means fewer concerns about cracking under pressure, weight or long unsupported spans.
If you’ve got a large kitchen island or areas where appliances are installed underneath, 30mm provides peace of mind. It’s particularly well-suited for homeowners who cook a lot. It is also effective for those who tend to lean on surfaces or want a worktop that feels solid and permanent.
Thicker slabs require more raw material and are heavier to transport, cut and install, which often means a noticeable price jump. When comparing quotes, it’s worth asking whether the price difference aligns with how much extra benefit you’ll actually get from the thicker option.
When 20mm is still a great option
Now, before you cross 20mm off your list, here’s the good news. It’s still a fantastic option. Many kitchens across Europe feature 20mm granite worktops without any issues. With proper installation and support, a thinner slab can perform just as well as its thicker counterpart.
A 20mm slab can also create a sleeker, more minimal aesthetic, especially in contemporary kitchens. It’s lighter, easier to handle during installation and, as you might expect, usually less expensive. If budget and modern design are priorities, 20mm granite may be the perfect balance.
What is the best option for homes?
The honest answer is that it depends on what you want from the space. If you’re drawn to a premium, bold look and want something that feels substantial, with greater resistance to stress, weight, and longer unsupported spans, such as large islands or breakfast bars, then a 30mm slab is likely the better match.
On the other hand, if your style leans more towards a minimalist, contemporary finish and you’re looking for a more cost-efficient route with a lighter and more streamlined feel, then a 20mm slab may suit your kitchen perfectly without compromising on beauty or practicality.
Granite kitchen worktops, no matter the thickness, bring timeless beauty, practicality and real value to your kitchen. Whether you go for 20mm or 30mm, make sure you pick a trusted supplier and installer like Mr Kitchen Worktop Fitter to ensure compliance with standards. Choose a finish you genuinely love. After all, a kitchen isn’t just functional, it’s also personal.
If you’d like help comparing finishes, colours or price options next, contact us.
