How Much Does Plasterboard Cost Per m²? A Comprehensive Price Guide

When planning a renovation or construction project, understanding the cost of plasterboard per m² is essential for effective budget management. Plasterboard, also known as drywall, is one of the most commonly used materials for interior walls and ceilings. Whether you’re building partitions, installing a ceiling, or working on walls in a bathroom or kitchen, plasterboard is a versatile material that offers many benefits. This comprehensive guide will help you understand the factors influencing plasterboard prices, the different types available, and what you can expect to pay per m².

What is Plasterboard?

Plasterboard, often referred to as drywall or wallboard, is a popular construction material made from a gypsum core encased in a protective layer of paper. It is designed for use in internal walls and ceilings, providing a smooth, durable surface for plaster finishes or direct painting. Standard plasterboard typically comes in sheets of 2400mm x 1200mm with a thickness of around 12.5mm, making it suitable for a wide range of applications. It’s relatively lightweight and easy to handle, which is why it is a preferred material for both professionals and DIY enthusiasts. However, there are various types of plasterboard designed for specific environments, including moisture-resistant plasterboard for bathrooms, acoustic plasterboard for soundproofing, and fire-resistant plasterboard for safety.

Factors Affecting the Cost of Plasterboard

Several factors influence the overall cost of plasterboard per m², and understanding these will help you budget effectively for your project. The most significant consideration is the type of plasterboard you need. For standard applications like internal walls and ceilings, standard plasterboard will typically be your go-to choice. However, for areas with higher moisture levels, such as kitchens or bathrooms, you might need moisture-resistant plasterboard, which tends to be more expensive due to its specialised properties.

The thickness of the plasterboard also affects the price. Standard thicknesses range from 9.5mm to 12.5mm, with thicker boards offering more durability and, in some cases, better insulation. However, thicker boards are generally more expensive per m². The size of the plasterboard sheet is another factor. Larger sheets, like the standard 2400mm x 1200mm, may offer better value for money as they cover more surface area with fewer sheets needed, reducing the cost per m².

Additionally, the brand of plasterboard can influence the price. Well-known manufacturers like Knauf and British Gypsum are often priced slightly higher than generic brands, but they also provide better quality and durability. Another factor is whether you are purchasing in bulk, as larger orders can sometimes come with discounts. Finally, location can also impact the cost, as some suppliers in different regions may charge more or less depending on supply and demand. For example, retailers like Travis Perkins and B&Q often have competitive pricing but may vary depending on location.

Types of Plasterboard and Their Costs

When choosing plasterboard for your project, it’s important to select the right type based on the specific needs of each room. The standard plasterboard is the most commonly used and is typically priced between £4 to £7 per m². This is ideal for general use on walls and ceilings in living rooms, bedrooms, and similar spaces. However, in areas like the bathroom or kitchen, where moisture is an issue, you will need to invest in moisture-resistant plasterboard. This variety contains additives that prevent water absorption, making it a better choice for damp environments, but it comes at a higher cost, ranging between £8 and £10 per m².

For rooms where soundproofing is important, such as bedrooms or home offices, acoustic plasterboard is the preferred option. This type of plasterboard is designed to reduce noise transmission between rooms, enhancing comfort and privacy. Acoustic plasterboard usually costs between £10 and £12 per m², which is slightly more than the standard option. If your project requires additional fire safety measures, such as in commercial buildings or specific areas in residential homes, fire-resistant plasterboard is a crucial choice. This board provides added protection and is often used in partition walls. The price for fire-resistant plasterboard typically ranges from £9 to £12 per m².

Installation Costs

In addition to the cost of materials, installation costs should also be considered when estimating the total expense for your project. If you are hiring a professional to install plasterboard, you can expect to pay around £150 to £400 per day, depending on the complexity of the job and your location. A plasterer will ensure that the boards are correctly fitted and that joints between sheets are properly treated to prevent cracks and ensure a smooth finish. The installation process may also require additional materials like screws, scrim tape, and jointing compounds, which will add to the total cost.

For those undertaking a DIY project, the cost will naturally be lower as you won’t need to pay for labour. However, it's essential to ensure that you have the right tools and knowledge to achieve a high-quality finish. Installing plasterboard may seem straightforward, but achieving a seamless finish often requires experience and attention to detail, particularly when it comes to plastering over the joints or applying a skim coat.

How to Calculate the Total Plasterboard Cost for Your Project

Calculating the total cost of plasterboard for your project involves several steps. First, you’ll need to measure the total area that requires covering. This can be done by multiplying the height and width of each wall or ceiling surface to get the area in square meters. For example, if you’re working on a room with walls measuring 3 meters by 4 meters, the total surface area might be around 24m².

Once you know the total area, select the appropriate type of plasterboard. If you're working in a bathroom, moisture-resistant plasterboard will be necessary, whereas standard plasterboard will suffice for a living room. Multiply the area by the cost per m² to calculate the material cost. For instance, if you’re covering 24m² with standard plasterboard at £6 per m², the total material cost would be £144.

Next, consider the labour cost if you’re hiring a plasterer. On average, you can expect to pay around £250 for a day’s work, depending on your location. Finally, factor in the cost of additional materials, such as screws, joint tape, and any plaster finish you may require for a seamless surface.

Popular Brands and Where to Buy Plasterboard

Two of the most popular brands in the UK plasterboard market are Knauf and British Gypsum. Both offer high-quality plasterboard and drywall products suitable for a wide range of applications. Knauf plasterboard is known for its durability and ease of use, making it a reliable choice for both DIYers and professionals. British Gypsum is another leading manufacturer, offering a variety of products designed to meet different requirements, including acoustic and moisture-resistant options.

You can purchase plasterboard from many hardware stores, including Travis Perkins and B&Q, which offer competitive pricing and a wide selection of products. These stores carry various types of plasterboard, including standard gypsum boards and more specialised options like moisture-resistant or fire-rated plasterboard. Shopping around at these retailers can help you find the best price for your project.

Conclusion

In conclusion, the cost of plasterboard per m² varies based on factors such as the type, thickness, and brand. On average, you can expect to pay between £4 and £12 per m², depending on the specific requirements of your project. Standard plasterboard is the most affordable option, but specialised boards like moisture-resistant and acoustic plasterboards may be necessary in certain areas and will come at a higher cost. When budgeting, don’t forget to account for labour costs and any additional materials like plaster finishes and screws.