Ordering plasterboard for a dry-lining job sounds straightforward until you’re standing on site with the wrong board thickness, sheets that don’t suit the stud centres, or a shortfall that delays the whole programme.
Getting the specification right before placing an order saves time, reduces waste and keeps the job moving.
Before you order, make sure you:
- Confirm the application and choose the right board type
- Select sheet sizes that suit the room dimensions and framework
- Choose the correct board thickness for the job
- Calculate quantities accurately, including a waste allowance
- Plan delivery and storage logistics in advance
Work through each of these steps, and you’ll be far more likely to get the order right the first time.
Know Your Application Before You Specify a Board
Dry-lining covers a range of applications, and the right board for one job isn’t always the right board for another. Internal walls, ceilings, and wall lining each place different demands on plasterboard, so the application should be confirmed before anything else.
A standard tapered-edge board suits most internal wall applications and is widely used across dry-lining projects. Ceilings require boards that can support their own weight across a span without sagging, making board thickness and fixing centres worth checking before the order goes in.
Get the Sheet Size Right for the Job
Plasterboard sheets are available in a range of sizes, with 1200 x 2400mm being the most common for residential and commercial dry-lining work. Larger sheets, such as 1200 x 2700mm or 1200 x 3000mm, can reduce the number of joints on taller walls, which often means less finishing work on site.
What to Check Before Ordering
Before placing your order, check:
- Room dimensions
- Stud centres
- Joist centres
- Access for handling larger sheets
Ordering boards that don’t align with the structural grid creates unnecessary cutting, increases waste, and adds time to the installation process.
Choose the Correct Thickness for the Application
The two most common plasterboard thicknesses used in dry-lining are 12.5mm and 15mm. For most internal wall applications, 12.5mm plasterboard is the standard choice. It provides the performance needed for typical dry-lining projects without adding unnecessary cost.
A 15mm board is generally used where additional rigidity is required. You’ll often see it specified for ceilings or in areas where improved acoustic performance or greater impact resistance is important.
And, once you’ve confirmed the specification, finding the right plasterboard for dry-lining projects becomes much easier. Suppliers such as Online Insulation Sales offer both 12.5mm and 15mm options, making it straightforward to match the board to the demands of the job.
Calculate Quantities Accurately Before You Order
Getting quantities wrong can be expensive. Order too little and you risk delays, but if you order too much, then you’ve tied up budget in materials that may never be used.
A simple way to calculate quantities is to:
- Measure the total surface area to be boarded
- Divide that figure by the coverage of a single sheet
- Add a waste allowance of around 10%
Remember to deduct doors, windows, and other openings before applying the waste factor. Taking the time to work through the calculations properly before placing the order can prevent unnecessary costs and delays later in the project.
Confirm Site Access and Delivery Requirements in Advance
Plasterboard sheets are heavy and awkward to handle, so delivery planning should be part of the ordering process rather than an afterthought.
Before placing the order, make sure you’ve considered:
- Vehicle access
- Unloading arrangements
- Storage location
- Manual handling requirements
Boards should be stored flat, kept off the ground, and protected from moisture. Poor storage can lead to bowed boards, damaged edges, and wasted materials before installation even begins.
Get Your Order Right and Keep the Job on Track
Dry-lining projects run more smoothly when the plasterboard specification is sorted before the first sheet arrives on site.
By confirming the application, selecting the right sheet size, choosing the correct thickness, calculating quantities accurately, and planning delivery arrangements, you can avoid many of the delays and additional costs that affect project timelines. Browse the plasterboard range at Online Insulation Sales to find the right boards for your dry-lining project and place your order with confidence.
Frequently asked questions:
What thickness plasterboard should I use for internal walls?
12.5mm is the standard thickness for most internal wall dry-lining applications. A 15mm board is typically used where additional rigidity, acoustic performance, or impact resistance is required.
What size plasterboard sheets are available for dry-lining?
The most common size is 1200 x 2400mm. Larger sheets, such as 1200 x 2700mm and 1200 x 3000mm, are also available and can help reduce the number of joints on taller walls.
Can the same plasterboard be used for walls and ceilings?
Standard plasterboard can be used for both applications, but ceilings require closer attention to board thickness and fixing centres to prevent sagging across longer spans.
How do I calculate how many plasterboard sheets I need?
Measure the total surface area to be boarded, divide by the coverage of a single sheet, and add a waste allowance of around 10% to account for cuts, openings, and damaged boards.
Where can I buy plasterboard for dry-lining projects?
Online Insulation Sales supplies plasterboard for dry-lining, internal wall, and ceiling applications, with a range of standard sheet sizes and thicknesses available to order.
By Annie Button 
