Unite sheet to wood screws
Sheet to wood screws for timber and glulam fastening
Sheet to wood screws for roofing and cladding applications
Our sheet to wood screws are designed for fastening roofing and cladding to timber and glulam, from standard external sheet-to-timber installations to heavier-duty roof build-ups where the wood structure and loading demand a different solution. The range also includes stainless alternatives and a dedicated option for aluminium sheet to timber.
The right choice depends on more than screw length alone. You normally need to match the screw to the wood substrate, the sheet material, whether the build-up is external or indoor, and the required clamp length, drill capacity and corrosion class for the job.
Choose the right sheet to wood screw for the substrate and build-up
Sheet to timber screws
Choose our sheet to timber screws when you are fastening roofing and cladding directly to standard timber. This part of the range covers the core external sheet-to-wood applications, including common hexagon-head screws, selected pan-head options and an aluminium-only variant when the outer sheet is aluminium.
See details, sizes and tables for our sheet to timber screws on page 18 in the catalogue.
Sheet to glulam screws
Use our sheet to glulam screws when the build-up carries higher loads, such as uninsulated load-bearing roofing sheet fixed into timber or glulam. This is the better choice when a standard sheet-to-timber screw is not the best fit for the structure or the roof build-up.
See technical details for our sheet to glulam screws on page 19 in the catalogue.
Indoor sheet to glulam screws
Choose our indoor sheet to glulam screw when you are fastening insulated, load-bearing roofing sheet to timber or glulam in an indoor build-up. This subgroup is distinct from the exposed glulam range and is aimed at installations where the assembly logic and head design differ from external sheet-to-wood fastening.
See sizes and details for our indoor sheet to glulam screw on page 19 in the catalogue.
Detailed sheet to wood screw data in our catalogue
The catalogue below is the best place to compare dimensions, drill capacity, washer size, pack quantities and the different timber-related subgroups in this family. That makes it easier to separate standard timber fixing from higher-load glulam applications before you order.
For this page, pages 18-19 matter most. Page 18 covers the main sheet-to-timber range, while page 19 adds the glulam and indoor variants that become relevant when the structure or roof build-up demands a different sheet to wood solution.
Need help choosing the right sheet to wood screw?
We help roofing and cladding contractors, buyers and project-led teams choose the right sheet to wood screw for the substrate, build-up and site conditions. If you are deciding between standard timber, glulam or indoor load-bearing roof applications, we can help you narrow the range quickly.
That is especially useful when clamp length, drill capacity, corrosion demand or colour matching can change which article is the right one for the job.
How do I choose between standard sheet to timber screws and sheet to glulam screws?
Choose standard sheet to timber screws for typical roofing and cladding installations into timber. Move to the sheet to glulam range when the build-up carries higher loads, such as uninsulated load-bearing roofing sheet fixed into timber or glulam, because that subgroup is intended for those heavier-duty wood applications.
When is the indoor sheet to glulam option the better choice?
Use the indoor sheet to glulam option when you are fastening insulated, load-bearing roofing sheet to timber or glulam in an indoor build-up. It is separate because the application differs from exposed sheet-to-wood fastening and the subgroup is built around a different assembly logic than the bonded-washer solutions used for external applications.
What matters most when choosing the screw length on a sheet to wood project?
The key point is to check the full clamp length, not just the visible outer sheet. You need to consider the sheet, any intermediate material and the required engagement into the wood, because misjudging the build-up is one of the easiest ways to end up with the wrong article and a slower installation.
Why does drill capacity matter if the screw is going into wood?
It matters because the point still has to get through the outer sheet cleanly before the screw can anchor in the wood. If the drill capacity does not match the metal thickness or sheet combination, installation becomes slower and less predictable, so it is worth checking the catalogue values before you choose.
Can I use the same sheet to wood screw for steel sheet and aluminium sheet?
Not always. This family includes a dedicated aluminium roofing to timber option, while the main range covers standard roofing and cladding applications. Matching the screw to the outer sheet material helps you avoid unnecessary compatibility issues and gives you a cleaner, more reliable result on site.
Can Unite help us choose the right sheet to wood screw for a specific project?
Yes. If you are balancing timber vs glulam, external vs indoor use, clamp length, drill capacity or colour matching, our team can help you narrow the range before ordering. That is especially useful when several roof or cladding build-ups appear in the same project.