Choosing the Right Fixing for Your Project
At County Building Supplies, our branch teams help builders, tradespeople and DIY customers find fixings for a wide range of installation and construction jobs. Whether you're fixing into plasterboard, masonry or a cavity wall, installing sanitaryware or levelling materials with packers and shims, choosing a fixing that's suitable for the substrate and load is important for a secure installation.
What Are You Fixing Into?
One of the most important things to consider when choosing a fixing is the material you're fixing into. A fixing designed for solid masonry may work very differently from one designed for plasterboard or a hollow wall.
- Wall plugs are used with compatible screws to create secure fixings in suitable solid materials such as brick, block and concrete.
- Plasterboard fixings are designed for suitable installations where the fixing needs to work with plasterboard or a hollow wall construction.
- Cavity wall fixings provide fixing solutions for suitable hollow-wall applications where a conventional solid-wall fixing isn't appropriate.
- Sanitary fixings are designed for installing products such as basins, toilets and other suitable bathroom or washroom fittings.
- Packers and shims help position, level and space materials accurately during installation and construction work.
Before choosing a fixing, consider the substrate, the item being attached and the load the fixing will need to support.
Fixing into Plasterboard & Hollow Walls
Plasterboard requires different fixing methods from solid masonry because the board itself may have limited capacity to support heavier loads. Specialist plasterboard and cavity wall fixings are designed to provide more appropriate fixing solutions for hollow-wall construction.
The best fixing depends on the wall construction, board thickness and load being supported. Where possible, heavier items may require fixing into suitable structural support behind the plasterboard rather than relying on the board alone.
Using Wall Plugs in Masonry
Wall plugs are commonly used when fixing into suitable brick, block or concrete. The plug is inserted into a correctly sized drilled hole before a compatible screw is driven into it, expanding or engaging the plug within the substrate.
The drill size, wall plug and screw should be correctly matched. The condition and type of masonry also need to be considered, particularly when fixing heavier items.
Packers & Shims
Packers and shims are useful for creating accurate spacing, levelling and alignment during construction and installation work. County Building Supplies stocks TIMCO flat packers and horseshoe shims in assorted thicknesses, making it easier to make small adjustments during installation.
They're commonly useful when positioning items such as frames, timber, joinery and other building components where accurate spacing or alignment is required.
Sanitary Fixings
Sanitary fixing kits provide the components required for suitable bathroom and washroom installations. County Building Supplies stocks TIMCO sanitary fixing products, including fixing kits for basins and WC or bidet installations.
Always check that the fixing kit is compatible with the sanitaryware, wall or floor construction and installation requirements before use.
Consider the Load
The weight of the item being installed and any additional loads placed on it are important when choosing a fixing. A fixing suitable for a lightweight fitting may not be appropriate for a heavier item.
Always check the fixing manufacturer's technical information and recommended loads for the particular substrate and installation. Where a fixing is safety-critical or supporting a significant load, the appropriate specification should be confirmed before installation.
Need Advice?
If you're unsure which fixing you need, visit your local County Building Supplies branch or contact our team. Tell us what you're fixing, what you're fixing into and the type of installation you're completing, and we'll help you find a suitable product from our range.
Frequently Asked Questions – Fixings
How do I choose the right fixing?
Start by identifying the material you're fixing into, such as plasterboard, brick, block or concrete. Then consider what you're attaching and the load the fixing needs to support. The fixing should be designed for the substrate and suitable for the expected load.
What fixings should I use for plasterboard?
Specialist plasterboard or cavity wall fixings can be used for suitable hollow-wall applications. The correct type depends on the plasterboard construction, board thickness and load being supported. Heavier items may require fixing into suitable structural support behind the board.
Can I use normal wall plugs in plasterboard?
Standard wall plugs designed for solid masonry aren't generally intended to work in the same way within hollow plasterboard. A fixing specifically designed for plasterboard or cavity-wall construction should be used where appropriate.
How do I choose the correct wall plug size?
The wall plug should be compatible with the screw and drilled hole as specified by the manufacturer. Plug diameter, screw diameter and fixing depth all need to work together, so check the manufacturer's recommendations before drilling.
Can wall plugs be used in brick and concrete?
Many wall plugs are designed for suitable solid masonry materials such as brick and concrete. However, performance can vary depending on the plug and substrate, so check that the fixing is approved or recommended for the material you're working with.
What's the difference between a plasterboard fixing and a cavity wall fixing?
Both can be designed for hollow-wall applications, but different fixing designs work in different ways and may have different substrate and load requirements. Always choose a fixing that's suitable for the specific wall construction and item being installed.
What are packers used for?
Packers are used to create controlled spacing, levelling and alignment between building components. Different thicknesses can be used individually or in suitable combinations to achieve the required position.
What are horseshoe shims used for?
Horseshoe shims have an open-ended design that allows them to be positioned around suitable fixings or components. They're useful for accurate spacing, packing and levelling during a range of building and installation jobs.
What are sanitary fixing kits used for?
Sanitary fixing kits contain fixings intended for suitable bathroom and washroom installations, such as securing basins, WCs or bidets. The correct kit depends on the sanitaryware and the surface or structure it's being fixed to.
How do I know how much weight a fixing can hold?
Fixing capacity depends on the product, substrate, installation method and other conditions. Don't assume a fixing has a particular load capacity based only on its size. Check the manufacturer's technical information for the fixing and substrate you're using.
Do you stock TIMCO fixings?
Yes. County Building Supplies stocks a range of TIMCO fixing products, including packers, horseshoe shims, sanitary fixing kits and other fixings. Product availability may vary between branches.
Do you deliver fixings?
Yes. County Building Supplies offers local delivery for fixings and other building supplies across our trading area. Product availability and delivery options may vary depending on your location and order, so contact your nearest branch for more information.