iHarmonizer vs Construction Calculator

IHarmonizer is a free application for recording machining noise, saving the file, and sending it to MLI for a free evaluation (send to harmonizer@mfg-labs.com). If the user desires he may do an "in-app" purchase to do the evaluation immediately and on site. The program detects chatter and suggests alternate spindles speeds to possibly eliminate the chatter. It also will terminate and indicate if there is no stable spindle speed to be found. Please contact harmonizer@mfg-labs.com for any questions.

Construction calculator answers, not math homework — that's Plumb: type your dimensions in feet-inches-fractions (8' 6 3/8") or metric, and get the exact amount to order — with waste factored in and every formula backed by published construction references. Every calculator is free. Forever. No account to create, nothing to unlock to get your numbers, and never a subscription. CONCRETE CALCULATOR — slabs, footings, columns and sonotubes. Cubic yards to order, 80/60/40 lb bag counts (real Quikrete yields), and estimated cost. From a patio slab to a full pour. TILE CALCULATOR — floor or wall area, tile size, grout joint, and waste factor in. Tiles and boxes to buy out, with coverage per box so you can sanity-check at the store. STAIR CALCULATOR — total rise in, code-checked risers out (IRC 7-3/4" max), tread count, total run, stringer length and stringer count. Stairs without the guesswork. FRAMING CALCULATOR — stud counts at 16" or 24" on center with corners and openings, plate stock in linear feet, and board feet for 2x4 or 2x6 walls. DECK CALCULATOR — deck boards by stock length, board rows, joist counts at 12" or 16" centers, and deck screws by the industry rule. CONCRETE BLOCK CALCULATOR — CMU counts by wall size, courses, mortar bags, and optional vertical rebar layout. REBAR ESTIMATOR — grid layout for slabs: bars each way, total linear feet, weight by bar size (#3, #4, #5), and 20 ft sticks to buy. DRYWALL SHEETS & MUD — sheet counts for 4x8 or 4x12, plus screws, joint tape, and compound from standard estimating rules. PAINT COVERAGE — gallons by room size and coats, with standard door and window deductions, at real-world coverage. FLOORING & PLANK ESTIMATOR — boxes of plank, laminate, or vinyl by coverage, with waste for straight or diagonal lays. ROOFING CALCULATOR — squares from footprint and pitch, shingle bundles, underlayment rolls, and ridge cap. GRAVEL & AGGREGATE TONNAGE — cubic yards and tons of aggregate, crushed stone, or sand by area and depth. ASPHALT TONNAGE — hot-mix tonnage at standard 145 lb/ft³ density for driveways and patches. MORTAR BAGS — coverage for block or brick from manufacturer coverage data. BOARD FEET & LUMBER VOLUME — volume and cost from nominal dimensions, piece by piece. BALUSTER SPACING — code-safe spindle counts and even gaps under the 4" sphere rule. TIME CARD CALCULATOR — weekly hours with breaks, overtime past 40, and pay totals. Round to the quarter hour like payroll does. PLUMB PRO — one purchase, yours forever: PDF cut-list export for the crew, project folders that group every calc for a job, saved history with cross-device sync, and share-to-crew. The calculators never go behind the paywall. Built for contractors, carpenters, masons, remodelers — and every homeowner pouring a first patio. From patio slabs to full pours: if it needs ordering, Plumb tells you how much.