Find useful construction reference charts covering sizes, dimensions, spacing, materials, and common jobsite measurements.
188 resources available
Actual dimensions of 1x, 2x, and 4x lumber compared to nominal trade sizes, with board foot, cross-sectional area, and metric conversions.
How local frost-line depth is established, how frost heave occurs, and the IRC methods for protecting foundations from frost, including frost-protected shallow foundations.
Riser height, tread depth, stair angle, and riser count formulas, with residential IRC, commercial IBC, and OSHA workplace stair dimensions.
Maximum horizontal and vertical pipe support spacing by material and size, based on the 2024 IRC and IPC, plus when closer supports are required.
Fractional-inch, number (#80 to #1), letter (A to Z), decimal-inch, and metric drill sizes in one conversion chart, plus how to choose the right bit for…
Penny size, length, and actual shank diameter for common, box, sinker, finish, brad, roofing, and framing nails, with the exact dimensions used in the current IRC…
Actual outside diameter, inside diameter, wall thickness, and weight for hot-dip galvanized steel pipe under ASTM A53 and ASTM F1083, Schedule 40 and Schedule 80.
Actual outside diameter, inside diameter, wall thickness, weight, and NPT thread sizes for ASTM A53 black steel pipe in Schedule 40 and Schedule 80.
Internal pipe capacity in gallons per foot, per 100 ft, cubic feet, and liters by actual inside diameter for Schedule 40, Schedule 80, PVC, and copper…
Water flow in gallons per minute by actual inside diameter and selected velocity for Schedule 40, Schedule 80, PVC, and copper pipe, with friction loss and…
Empty and water-filled pipe weight by NPS, schedule, and wall thickness for steel, stainless, PVC, and copper pipe, plus the formula behind every value on this…
Counterbore diameter, depth, clearance-hole size, and recess dimensions for inch and metric socket-head cap screws, plus counterbore versus countersink versus spotface, washer/tool clearance, fillet clearance, and…