Find useful construction reference charts covering sizes, dimensions, spacing, materials, and common jobsite measurements.
188 resources available
ASME B18.2.1 body diameter, width across flats, width across corners, head height, and wrench/socket size for standard inch-series hex bolts, plus UNC/UNF thread pitch under ASME…
Example purlin spacing ranges, the w=qS tributary load conversion, and guidance on how roof-panel span, purlin capacity, snow, and wind uplift together control the maximum allowable…
Actual web depth, flange width, lip, base steel thickness, and weight per foot for common Cee-purlin product lines, cross-checked against current manufacturer data, plus shear center…
Actual web depth, flange, lip, base steel thickness, and weight per foot for common Z-purlin product lines, cross-checked against current manufacturer data, plus lap, span versus…
Nominal weight per foot for W, S, M, and HP shapes, channels, angles, HSS, plate, and bar, cross-verified against AISC-sourced data, plus the Code of Standard…
Structural square tube dimensions, the critical difference between nominal and design wall thickness, and how square HSS differs from mechanical square tubing, cross-verified against AISC and…
Populated dimensional and section-property tables for American Standard (C) and Miscellaneous (MC) steel channels, cross-verified against AISC-sourced engineering references, plus how designations, depth, flange, web, and…
Populated dimensional and section-property tables for equal-leg and unequal-leg steel angles, cross-verified against AISC-sourced engineering references, plus how designations, thickness, weight, and section properties work under…
How C-purlin and Z-purlin dimensions, thickness, and gauge work, why span and spacing are not the same thing, and why purlin size cannot be selected from…
How Hollow Structural Section designations work, the critical difference between nominal and design wall thickness, and how square, rectangular, and round HSS sizes are organized under…
How much a ready-mix truck actually carries, why rated capacity is not the same as legal payload, what a load weighs, and how many truckloads your…
Convert an already-known concrete volume between cubic inches, cubic feet, cubic yards, cubic meters, liters, and U.S. gallons, using NIST-based conversion factors. This chart converts units…