You need five groups of tools: layout and levelling gear to set the line, a saw and blade matched to the material, a fastening tool with the manufacturer's specified fasteners, flashing and water-management materials, and something to hold the sheet against the wall while you fasten it. The list changes most between engineered wood and fiber cement, because fiber cement needs a different blade and real dust control. The item most tool lists leave off is the last one, holding the sheet, which is the part crews actually improvise on site.
Layout and levelling
- Chalk line, for the starting line and the fastener lines
- A good 4 ft level, and a laser or water level for long walls where a short level accumulates error
- Tape, speed square, and a straightedge for cuts
- A story pole if you are holding a reveal across several elevations
- Stud marker or a way to carry stud locations up the wall, since panel joints have to land on framing
Cutting
- Engineered wood and plywood panels. A circular saw with a sharp fine-tooth blade, and a jigsaw for cutouts around penetrations.
- Fiber cement. A different job. James Hardie's published instructions call for a polycrystalline diamond blade, and other fiber cement makers publish their own cutting methods, so read the one for the product you bought rather than assuming they match. Cutting produces respirable crystalline silica dust, so follow the manufacturer's published method and the workplace exposure rules that apply to you. Shears are an option on some products and produce far less dust than sawing.
- Cut outside, downwind, and keep the cut station away from the crew where you can.
Fastening
- A nailer sized for the fastener your panel manufacturer specifies, or a hammer if you are hand nailing
- Corrosion resistant fasteners to the manufacturer's specification. This is not a place to substitute what is in the truck
- A nail set, for the times a fastener has to be finished by hand
Flashing and water management
- Water-resistive barrier and the tape that goes with it
- The flashing required by the panel manufacturer, cut and lapped to its detail
- Sealant of the type the manufacturer names, and a decent gun
The group most tool lists leave out entirely: something to hold the sheet while you fasten it.
Holding the sheet, the group most lists skip
A full sheet will not stay where you put it, and it is heavier than people plan for. Published 4x8 weights run from about 38 lb for 3/8 in. T1-11 plywood up to 76.8 lb for HardiePanel, with every figure and its source on the panel weights page.
There are five ways crews solve it, and three of them are free:
- A second set of hands. Free, and the baseline. It pins a worker under the sheet for the whole course.
- Nails tacked at the marked height. Free and immediate. Small heads, and you pull and re-drive on every course.
- A scrap cleat or screwed ledger board. Free if you have offcuts. Level it, fasten it, remove it and patch the holes, on every course. More in temporary ledger boards and what they cost you.
- Flashing clamps. Commercial panel clamps provide two temporary support points and move from course to course without leaving wall-fastener holes. Confirm the wall assembly and installation method against the clamp manufacturer's current instructions.
- Starter-course hangers. Dodge Hangers are sold for getting the first row set on sheathing and siding, listed by the maker for plywood, OSB, T1-11 and cement board, at roughly $8 to $15 a pack.
One thing to check before you buy: lap-siding gauges are not panel tools. Gecko Gauge and similar self-gauging tools hook on the course below to set the next lap. They are built for horizontal plank, not full rigid sheets, so for T1-11 and engineered-wood panels they are the wrong tool rather than a cheaper one. The full comparison is in compare tools, and the five options are laid out in how to hang a 4x8 siding panel.
Access and protection
- Staging or ladders appropriate to the wall, plus fall protection where the work calls for it
- Eye and hearing protection, and respiratory protection matched to the material you are cutting
- Gloves that let you feel a panel edge, because a sheet you cannot grip is a sheet you drop
The panel's bottom edge sits down in the saddle rather than balancing on a flat edge.
Whichever you use
Panel siding is a minimum two-person job, and your panel manufacturer sets the fastener type and pattern, the flashing details, and the clearances. Tools make the day easier. They do not change what a compliant install requires, and they are not a substitute for the current instructions for your specific panel.