13 trades, each with its own page: what a checklist covers for that work, which calculators come with it, and what the Gaffer gets asked on a normal day.
Describe the job in your own words and the checklist is specific to the job you describe — tools, PPE, consumables and paperwork.
Cable, breakers, test gear and the certs — consumer unit swaps, rewires, new circuits.
Cable Voltage Drop · MCB Sizing · Conduit Fill
Pipe, fittings and isolation, plus the paperwork a heating or bathroom job needs.
Pipe Size & Flow · Radiator Sizing · Drainage Fall
Access, fall protection and materials before anyone goes up the ladder.
Decking / Roofing
Consumables, gas, PPE and the WPS — shop work or out on site.
Steel & Metal Weight · Welding Heat Input · Weld Consumables & Gas · Welding Symbol
Timber, fixings and the cutting list, from stud walls to a flight of stairs.
Stair Calculator · Stud Wall · Decking / Roofing
Materials, plant and sequence for extensions, foundations and structural work.
Concrete · Brick & Block · Stud Wall · Gravel / Topsoil
Prep, sundries and paint quantities so you buy the right number of tins once.
Paint Coverage
Board counts, bag counts, beads and the state of the substrate.
Stud Wall
Brick and block counts, mortar, DPC and the lifts you can get done in a day.
Brick & Block · Concrete
Tile counts with the waste allowance, adhesive, grout and trims.
Tile Calculator
Tonnage, hard and soft materials, and the falls on a patio or drive.
Gravel / Topsoil · Concrete · Decking / Roofing · Drainage Fall
Parts, sizing and the paperwork a Gas Safe job leaves behind.
Radiator Sizing · Pipe Size & Flow
Plant, volumes, permits and the PPE a dig actually needs.
Drainage Fall · Concrete · Gravel / Topsoil
Trade not listed? The checklist works from what you describe, not from a dropdown. Start free and pick Other.