Free construction calculators

Free calculators for builders and homeowners: stairs, stud layout, roof pitch, balusters, material takeoffs, effective R-value, heat loss and NBC Tier 2 points.

Feet-Inch Fraction Calculator: Add, subtract, multiply and divide tape measurements — imperial or metric — or get an area.

Baluster Spacing Calculator: How many balusters, the exact gap, and a tape mark for each one.

Equal Spacing Calculator: Evenly space pickets, deck boards, posts, panels or anything else across a run.

Stair Calculator: Risers, treads, stringer layout and length, with the drop at the bottom.

Wall Stud Layout: Stud marks for a wall plate at 16", 19.2" or 24" on-centre.

Rake Wall Calculator: Short and long point for every stud in a sloped (gable or shed) wall.

Roof Pitch & Angle Converter: Convert between pitch (x/12), degrees and percent grade.

Miter & Crown Angles: Saw settings for trim corners and crown moulding cut flat.

Right Triangle Calculator: Fill in any two of rise, run, diagonal or angle — get the rest. Great for squaring.

Effective Wall R-Value: What your wall really insulates to once the studs are counted — the number the code uses.

Wall Condensation Check: Will moisture condense inside your wall? Temperature through the wall vs. the dew point.

Heat Loss & Heat Pump Size: A quick whole-house heat loss at your location's design temperature, and roughly what heat pump that means.

Room Heat Loss (BTU): Heat loss for one room at the design temperature — for sizing a mini-split head or baseboard.

Energy Standards Check: Tiers, Net Zero, Passive House: See how a house design stacks up against NBC Tiers 2–5, R-2000, CHBA Net Zero, EnerPHit and Passive House.

NB Energy Code Tier 2 Points: Add up NBC energy conservation points for the prescriptive route to Tier 2 — the level New Brunswick requires.

Blower-Door Airtightness: Turn a blower-door result into ACH50, CFM50 and NLR50 — and see which NBC level and programs it meets.

Ventilation & HRV Sizing: NBC ventilation rates for a house — principal fan (or HRV) and bathroom and kitchen exhaust.

Building Unit Converter: R ↔ RSI ↔ U-value, BTU/h ↔ kW ↔ tons, °F ↔ °C, and area, volume and airflow.

Concrete Calculator: Volume for slabs, footings and round tube piers — in yards or cubic metres, and bags.

Deck Board Calculator: How many deck boards, what lengths, and screws — plus board count across the deck.

Floor & Deck Joist Layout: Joist count, marks along the rim, lumber lengths and hangers. (Sizing comes from span tables — not included.)

Rafter Calculator: Common rafter length, cut angles and count for a gable roof. (Sizing comes from span tables — not included.)

Sheathing Calculator: Sheets of OSB or plywood for walls, floors or a gable roof.

Drywall Calculator: Sheets of drywall for a room's walls and ceiling.

Roofing Calculator: Roof area, squares, shingle bundles, underlayment and drip edge for a gable roof.

Siding Calculator: Siding area in squares for walls and gable ends, less windows and doors.

Flooring Calculator: Floor area and boxes of hardwood, laminate or vinyl plank.

Tile Calculator: Tile count and boxes for a floor or wall, with grout joints.

Trim Calculator: Baseboard and door and window casing, in lineal feet and pieces.

Fence Calculator: Posts, rails, pickets and post-hole concrete — with equal sections along the run.

Taulien Construction · Fredericton, New Brunswick · info@taulien.com · 506-230-5131