First fix nail gun guide for studs, roofs, fencing and sheds
Updated: October 2026
You are fixing a shed rail, stud or roof batten and need the nail to suit the timber before you worry about which gun is fastest. A first fix nail gun normally works with substantial collated nails, but 50, 63, 75 and 90 mm are choices rather than one universal answer. The timber thickness, exposure and structural drawing decide the fastener; the gun must then state that it accepts it. Our main [framing nailer comparison](/hub/staplers-and-nail-guns/framing-nailer) shows current ranges and power sources, while this guide keeps the decision centred on the job.
You are fixing a shed rail, stud or roof batten and need the nail to suit the timber before you worry about which gun is fastest.
You are fixing a shed rail, stud or roof batten and need the nail to suit the timber before you worry about which gun is fastest. A first fix nail gun normally works with substantial collated nails, but 50, 63, 75 and 90 mm are choices rather than one universal answer. The timber thickness, exposure and structural drawing decide the fastener; the gun must then state that it accepts it. Our main framing nailer comparison shows current ranges and power sources, while this guide keeps the decision centred on the job.
Our top picks
| Badge | Product | Nail range | Shank | Power | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  meite meite SN3483F 34° air framing nailer | 50–83 mm | 2.8–3.3 mm | Air | 9.6 | about £149.00 | View offer |
| Preis-Tipp |  Tacwise Tacwise KDH90V 34° air framing nailer | 50–90 mm | 2.8–3.7 mm | Air | 9.2 | about £199.02 | View offer |
| Alternative |  HiKOKI HiKOKI NR1890DCA 18 V framing nailer kit | Up to 90 mm | Ring shank | Battery | 6.4 | about £514.95 | View offer |
On this page
First fix is the frame, not the architrave
First fix covers the structural or substantial timber installed before the visible finishing work. Studs, joists, roof battens, fence rails and shed frames sit in this broad group. The nail is usually larger and the finished head less visually important than it would be on skirting or architrave, but its holding requirement is more demanding.
A finish or brad nailer is therefore not a small framing nailer. Those tools drive slimmer fasteners for second-fix work where a discreet hole matters. A pin gun is lighter again, while a picture-frame nailer is made for joining frame corners. For a broader explanation of angle, power and firing mode, read the framing nailer buying guide.
Length follows the timber, and 90 mm is not optional when specified
The gun’s range sets a hard boundary once the fastener has been chosen. The meite SN3483F listing states 50–83 mm. The Tacwise KDH90V states 50–90 mm. If a rail, joist or drawing requires a 90 mm nail, the meite cannot meet that stated requirement even though it is a 34° framing nailer and costs less.
The distinction is also relevant to the other current listings. The HiKOKI states ring-shank capacity up to 90 mm, while the fischer and DeWalt Amazon details are less complete about nail length. Treat model reputation or a retailer image as a reason to verify, not as the verification itself. Confirm the manual and current listing before buying fasteners in volume.
Ring shank, corrosion protection and the head on the drawing
Length is only one part of holding performance. Ring-shank nails resist withdrawal better than a smooth shank because the annular profile grips the fibres. That can be useful where pull-out matters, but the connection design still decides whether ring, screw or smooth shank is appropriate. The HiKOKI listing names ring-shank nails; the two air guns list multiple shank types within their accepted dimensions.
Outdoor and treated timber bring corrosion into the decision. Galvanised or stainless fasteners are the relevant options for fencing, external sheds and compatible treated timber, with the grade selected for the exposure and timber treatment. An unprotected nail may stain the timber or lose section over time. Galvanised is not one universal performance level, so use the project specification and fastener manufacturer’s suitability statement.
Head shape also deserves more than a quick label. Paper-collated strips often use clipped or D-head nails so the fasteners can sit closely together. That packaging advantage does not make every clipped head suitable for every structural connection. The UK timber guidance in WIS 2/3-52 discusses structural nails under BS EN 14592 and a head area of at least 2.5 d²; a structural drawing can require a full round head or another exact fixing.
Do not turn that into the opposite absolute claim that all clipped-head nails are unsuitable. The correct conclusion is conditional: the nail must meet the specification for that connection. When the drawing names a head, shank, coating, hanger or fixing pattern, use exactly that requirement or refer it back to the designer.
Getting the correct nail to the roof or fence
The gas versus air framing nailer guide compares those systems, while the how to use a framing nailer guide covers sequential firing and isolation. For large construction nails, HSE says repeat firing is not suitable; place the nose and fire one deliberate fixing at a time regardless of the power source.
Know when the project has moved beyond a shopping decision. Follow the engineer’s drawing or consult a competent joiner when the fixing pattern, hanger, head or edge distance is specified, when building-control requirements apply, or when services may be hidden behind the timber. A gun cannot correct an uncertain connection design.
Common questions
Can you use the same nail for studs, roof battens, fencing and sheds?
Not automatically. Those jobs involve different timber dimensions, exposure and connection requirements. A roof drawing may specify a head and pattern, while an outdoor fence needs suitable corrosion protection. Treat each connection separately, even if one 34° gun can physically load several nail lengths.
Do you need 90 mm nails?
Only when the timber connection or specification calls for them. Ninety millimetres is common enough that it affects tool choice, but it is not a universal first-fix requirement. If the job does require 90 mm, buy a gun whose current documentation states that capacity and use the specified head, shank and coating.
Ring shank or smooth shank?
Ring-shank nails resist withdrawal better and are often considered where pull-out matters. Smooth shank can be easier to drive but offers less withdrawal resistance as a general principle. The project specification decides the correct shank; do not upgrade or substitute casually if an engineer, hanger manufacturer or fixing schedule names one.
Are clipped-head nails acceptable?
They may be acceptable in some systems, but not automatically. Clipped and D-head nails allow close strip collation, while a structural specification can require a full round head or minimum head area. WIS 2/3-52 discusses head area for structural nails. Follow the drawing and do not substitute a clipped head solely because it fits the gun.
When should you stop and call a joiner?
Stop when you cannot establish the required length, head, shank, coating or fixing pattern; when a hanger or engineer’s drawing governs the connection; when building-control input is needed; or when services may be hidden. A competent joiner or designer should resolve the detail before any nail is fired.
Related pages
Sources
Public UK sources on nail-gun safety, noise, vibration, and work equipment, plus manufacturer pages used as reference. Prices, stars, and review counts are from the amazon.co.uk listings kept on 16 October 2026. Prices move.
- HSE, nail guns in woodworking (retrieved 16 October 2026)
- HSE, PUWER overview (retrieved 16 October 2026)
- Control of Noise at Work Regulations 2005, regulation 4 (retrieved 16 October 2026)
- HSE, hand-arm vibration regulations (retrieved 16 October 2026)
- Paslode IM350+ framing nailer (reference specification, not one of these ASINs) (retrieved 16 October 2026)
- fischer UK, FGW 90F gas framing nailer (retrieved 16 October 2026)
- Screwfix, nail gun buying guide (retrieved 16 October 2026)
- amazon.co.uk listings B00D3IUPOC, B0D2KVW3VB, B0DYDZYWFP, B0F4XCD5F3, B09YVF7HMG (retrieved 16 October 2026)