Find useful construction reference charts covering sizes, dimensions, spacing, materials, and common jobsite measurements.
188 resources available
Complete deck beam span reference for contractors and DIYers organized by beam size, joist span supported, and lumber species/grade, following the AWC DCA 6 / IRC…
Complete deck footing reference for contractors and DIYers, size footings by tributary area and soil bearing capacity, not deck size alone.
Complete wire gauge reference for electricians and engineers — AWG, SWG, and metric wire sizing, conversions, and selection guidance.
Complete structural steel shape reference for engineers and contractors every major shape explained, compared, and matched to the right application.
Complete pipe reference for contractors and engineers — NPS/DN sizing, Schedule 40 vs 80, OD/ID explained, and material selection guidance.
Complete thread reference for engineers and contractors, identify unknown threads, compare standards, and find the right tap drill size.
Complete screw reference for contractors and DIYers - gauges, diameters, lengths, thread types, head styles, drive types, and pilot hole sizing for every project.
Complete bolt grade reference for engineers and contractors — SAE Grade 2/5/8, metric property classes, ASTM structural bolts, head markings, and selection guidance.
Complete steel beam reference for engineers and contractors — W-shape dimensions, weights, section properties, grades, and structural applications.
Complete lumber reference for contractors and builders — dimensional lumber spans by size, species, grade, and application for floors, roofs, and decks.
Complete joist reference for contractors and builders — wood, I-joist, LVL, and truss spans by spacing, species, grade, and application.
Complete concrete masonry unit reference for contractors and builders — nominal vs actual dimensions, weights, compressive strength, ASTM standards, and application guidance.