Plasterboard is a commonly used material in modern construction due to its affordability, ease of installation, and the smooth surface it can create, which is well prepared for painting.
The prospect of completing a plasterboard project for the first time can feel like stepping into the unknown, which is why we have compiled a useful guide that will help educate you on how to fit plasterboard effectively.
What is Plasterboard?
Plasterboard is a flat panel that is made by pressing a layer of gypsum between two heavy paper sheets.
Also known as drywall or gypsum board, plasterboard offers a quick and efficient way to build interior walls and ceilings, a quicker, less messy alternative to traditional plastering.
It varies in terms of thickness, with a wide variety of different options, including fire-resistant and soundproof options.
Insulated plasterboard improves thermal efficiency by reducing heat loss through walls and ceilings.
How to Fit Plasterboard: Step-by-Step Guide
Fortunately, plasterboard is relatively easy to handle and install, both on walls and ceilings, if you’re competent when it comes to DIY tasks.
How to Plasterboard a Wall
Measure the height of the wall and use a utility knife to cut the plasterboard to size.
Mark the stud positions on the floor and the ceiling to guide screw placement.
Depending on the room size, position the board vertically or horizontally, and screw into studs every 200–300mm.
Stagger the joints between rows of boards to avoid creating stress points.
Use jointing compound and tape to cover the seams. Screw holes and then sand smooth once the compound is dry.
How to Plasterboard a Ceiling
Cut your boards to fit the ceiling space while leaving a small gap around the edges for movement.
Use someone else or a plasterboard lifter to hold the board in place against the ceiling joists.
Secure your board to the ceiling joists with drywall screws spaced approximately 150–200mm apart.
Offset the board joints across the ceiling to increase strength and minimise the risk of cracking.
Apply jointing compound and tape over all the joints and screws. Sand smooth once dry.
After installation (for both walls and ceilings), you can add angle beads to make corners stronger and achieve a cleaner finish.
What Happens if You Don’t Tape Plasterboard?
If you don’t tape plasterboard, the seams will stay visible. They won’t look smooth, and the final finish will be underwhelming.
Untaped joints are more prone to cracking as the boards move with temperature and humidity changes. In damp parts of a building, moisture can enter the joints and cause damage and mould.
Essentially, jointing and taping are key when it comes to fitting plasterboard.
Do You Screw or Nail Plasterboard?
Screwing plasterboard is a better option than nailing because screws grip studs and joists more firmly. This reduces loosening over time, making screws the stronger choice in the long run.
Nails can also cause nail pops in the wall, which screws don’t. Screws can be removed more easily for repairs and provide a stronger overhead hold, which is particularly crucial for ceilings to prevent sagging or falling boards.
Can You Paint Plasterboard?
Yes, you can paint plasterboard. In fact, this is one of the reasons (along with its convenience) that it is so popular within interior finishing.
Once dry, apply primer or sealer to seal the porous surface, provide a consistent surface, and improve paint adhesion.
After priming/sealing, plasterboard takes paint well, and as it’s a flat surface, decorating is relatively straightforward. Apply two coats of paint for balanced coverage and a professional finish.
Can You Tile Onto Plasterboard?
Yes, you can tile onto plasterboard, but you should use moisture resistant board if this is the plan, particularly in bathroom and kitchen areas that are more prone to damp.
Standard plasterboard isn’t generally waterproof, so finding a specialised option that is will be essential for tiling.
As you would before painting, ensure that you prime the plasterboard and that it is fixed securely.
In Summary
Fitting plasterboard should be a relatively straightforward task if you have some DIY experience.
Whether you’re fitting it on walls or ceilings, we hope we have given you a useful breakdown of plasterboard and the installation process.
We stock a range of plasterboard products here at Joseph Parr Northants, combining quality with expert guidance if you need additional advice.